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Publisher: John Wiley and Sons   (Total: 1589 journals)

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Showing 1 - 200 of 1589 Journals sorted alphabetically
Abacus     Hybrid Journal   (Followers: 12, SJR: 0.48, h-index: 22)
About Campus     Hybrid Journal   (Followers: 5)
Academic Emergency Medicine     Hybrid Journal   (Followers: 65, SJR: 1.385, h-index: 91)
Accounting & Finance     Hybrid Journal   (Followers: 48, SJR: 0.547, h-index: 30)
ACEP NOW     Free   (Followers: 1)
Acta Anaesthesiologica Scandinavica     Hybrid Journal   (Followers: 53, SJR: 1.02, h-index: 88)
Acta Archaeologica     Hybrid Journal   (Followers: 168, SJR: 0.101, h-index: 9)
Acta Geologica Sinica (English Edition)     Hybrid Journal   (Followers: 3, SJR: 0.552, h-index: 41)
Acta Neurologica Scandinavica     Hybrid Journal   (Followers: 5, SJR: 1.203, h-index: 74)
Acta Obstetricia et Gynecologica Scandinavica     Hybrid Journal   (Followers: 15, SJR: 1.197, h-index: 81)
Acta Ophthalmologica     Hybrid Journal   (Followers: 6, SJR: 0.112, h-index: 1)
Acta Paediatrica     Hybrid Journal   (Followers: 56, SJR: 0.794, h-index: 88)
Acta Physiologica     Hybrid Journal   (Followers: 6, SJR: 1.69, h-index: 88)
Acta Polymerica     Hybrid Journal   (Followers: 9)
Acta Psychiatrica Scandinavica     Hybrid Journal   (Followers: 37, SJR: 2.518, h-index: 113)
Acta Zoologica     Hybrid Journal   (Followers: 7, SJR: 0.459, h-index: 29)
Acute Medicine & Surgery     Hybrid Journal   (Followers: 5)
Addiction     Hybrid Journal   (Followers: 36, SJR: 2.086, h-index: 143)
Addiction Biology     Hybrid Journal   (Followers: 14, SJR: 2.091, h-index: 57)
Adultspan J.     Hybrid Journal   (SJR: 0.127, h-index: 4)
Advanced Energy Materials     Hybrid Journal   (Followers: 26, SJR: 6.411, h-index: 86)
Advanced Engineering Materials     Hybrid Journal   (Followers: 26, SJR: 0.81, h-index: 81)
Advanced Functional Materials     Hybrid Journal   (Followers: 51, SJR: 5.21, h-index: 203)
Advanced Healthcare Materials     Hybrid Journal   (Followers: 14, SJR: 0.232, h-index: 7)
Advanced Materials     Hybrid Journal   (Followers: 295, SJR: 9.021, h-index: 345)
Advanced Materials Interfaces     Hybrid Journal   (Followers: 6, SJR: 1.177, h-index: 10)
Advanced Optical Materials     Hybrid Journal   (Followers: 7, SJR: 2.488, h-index: 21)
Advanced Science     Open Access   (Followers: 5)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 17, SJR: 2.729, h-index: 121)
Advances in Polymer Technology     Hybrid Journal   (Followers: 13, SJR: 0.344, h-index: 31)
Africa Confidential     Hybrid Journal   (Followers: 21)
Africa Research Bulletin: Economic, Financial and Technical Series     Hybrid Journal   (Followers: 13)
Africa Research Bulletin: Political, Social and Cultural Series     Hybrid Journal   (Followers: 11)
African Development Review     Hybrid Journal   (Followers: 33, SJR: 0.275, h-index: 17)
African J. of Ecology     Hybrid Journal   (Followers: 16, SJR: 0.477, h-index: 39)
Aggressive Behavior     Hybrid Journal   (Followers: 15, SJR: 1.391, h-index: 66)
Aging Cell     Open Access   (Followers: 11, SJR: 4.374, h-index: 95)
Agribusiness : an Intl. J.     Hybrid Journal   (Followers: 3, SJR: 0.627, h-index: 14)
Agricultural and Forest Entomology     Hybrid Journal   (Followers: 16, SJR: 0.925, h-index: 43)
Agricultural Economics     Hybrid Journal   (Followers: 45, SJR: 1.099, h-index: 51)
AIChE J.     Hybrid Journal   (Followers: 32, SJR: 1.122, h-index: 120)
Alcoholism and Drug Abuse Weekly     Hybrid Journal   (Followers: 7)
Alcoholism Clinical and Experimental Research     Hybrid Journal   (Followers: 7, SJR: 1.416, h-index: 125)
Alimentary Pharmacology & Therapeutics     Hybrid Journal   (Followers: 33, SJR: 2.833, h-index: 138)
Alimentary Pharmacology & Therapeutics Symposium Series     Hybrid Journal   (Followers: 3)
Allergy     Hybrid Journal   (Followers: 51, SJR: 3.048, h-index: 129)
Alternatives to the High Cost of Litigation     Hybrid Journal   (Followers: 3)
American Anthropologist     Hybrid Journal   (Followers: 152, SJR: 0.951, h-index: 61)
American Business Law J.     Hybrid Journal   (Followers: 24, SJR: 0.205, h-index: 17)
American Ethnologist     Hybrid Journal   (Followers: 93, SJR: 2.325, h-index: 51)
American J. of Economics and Sociology     Hybrid Journal   (Followers: 29, SJR: 0.211, h-index: 26)
American J. of Hematology     Hybrid Journal   (Followers: 35, SJR: 1.761, h-index: 77)
American J. of Human Biology     Hybrid Journal   (Followers: 13, SJR: 1.018, h-index: 58)
American J. of Industrial Medicine     Hybrid Journal   (Followers: 16, SJR: 0.993, h-index: 85)
American J. of Medical Genetics Part A     Hybrid Journal   (Followers: 16, SJR: 1.115, h-index: 61)
American J. of Medical Genetics Part B: Neuropsychiatric Genetics     Hybrid Journal   (Followers: 4, SJR: 1.771, h-index: 107)
American J. of Medical Genetics Part C: Seminars in Medical Genetics     Partially Free   (Followers: 6, SJR: 2.315, h-index: 79)
American J. of Physical Anthropology     Hybrid Journal   (Followers: 37, SJR: 1.41, h-index: 88)
American J. of Political Science     Hybrid Journal   (Followers: 290, SJR: 5.101, h-index: 114)
American J. of Primatology     Hybrid Journal   (Followers: 16, SJR: 1.197, h-index: 63)
American J. of Reproductive Immunology     Hybrid Journal   (Followers: 3, SJR: 1.347, h-index: 75)
American J. of Transplantation     Hybrid Journal   (Followers: 18, SJR: 2.792, h-index: 140)
American J. on Addictions     Hybrid Journal   (Followers: 9, SJR: 0.843, h-index: 57)
Anaesthesia     Hybrid Journal   (Followers: 138, SJR: 1.404, h-index: 88)
Analyses of Social Issues and Public Policy     Hybrid Journal   (Followers: 9, SJR: 0.397, h-index: 18)
Analytic Philosophy     Hybrid Journal   (Followers: 20)
Anatomia, Histologia, Embryologia: J. of Veterinary Medicine Series C     Hybrid Journal   (Followers: 3, SJR: 0.295, h-index: 27)
Anatomical Sciences Education     Hybrid Journal   (Followers: 1, SJR: 0.633, h-index: 24)
Andrologia     Hybrid Journal   (Followers: 2, SJR: 0.528, h-index: 45)
Andrology     Hybrid Journal   (Followers: 2, SJR: 0.979, h-index: 14)
Angewandte Chemie     Hybrid Journal   (Followers: 179)
Angewandte Chemie Intl. Edition     Hybrid Journal   (Followers: 229, SJR: 6.229, h-index: 397)
Animal Conservation     Hybrid Journal   (Followers: 41, SJR: 1.576, h-index: 62)
Animal Genetics     Hybrid Journal   (Followers: 8, SJR: 0.957, h-index: 67)
Animal Science J.     Hybrid Journal   (Followers: 6, SJR: 0.569, h-index: 24)
Annalen der Physik     Hybrid Journal   (Followers: 5, SJR: 1.46, h-index: 40)
Annals of Anthropological Practice     Partially Free   (Followers: 2, SJR: 0.187, h-index: 5)
Annals of Applied Biology     Hybrid Journal   (Followers: 7, SJR: 0.816, h-index: 56)
Annals of Clinical and Translational Neurology     Open Access   (Followers: 1)
Annals of Human Genetics     Hybrid Journal   (Followers: 9, SJR: 1.191, h-index: 67)
Annals of Neurology     Hybrid Journal   (Followers: 48, SJR: 5.584, h-index: 241)
Annals of Noninvasive Electrocardiology     Hybrid Journal   (Followers: 1, SJR: 0.531, h-index: 38)
Annals of Public and Cooperative Economics     Hybrid Journal   (Followers: 8, SJR: 0.336, h-index: 23)
Annals of the New York Academy of Sciences     Hybrid Journal   (Followers: 5, SJR: 2.389, h-index: 189)
Annual Bulletin of Historical Literature     Hybrid Journal   (Followers: 13)
Annual Review of Information Science and Technology     Hybrid Journal   (Followers: 14)
Anthropology & Education Quarterly     Hybrid Journal   (Followers: 25, SJR: 0.72, h-index: 31)
Anthropology & Humanism     Hybrid Journal   (Followers: 17, SJR: 0.137, h-index: 3)
Anthropology News     Hybrid Journal   (Followers: 15)
Anthropology of Consciousness     Hybrid Journal   (Followers: 11, SJR: 0.172, h-index: 5)
Anthropology of Work Review     Hybrid Journal   (Followers: 11, SJR: 0.256, h-index: 5)
Anthropology Today     Hybrid Journal   (Followers: 91, SJR: 0.545, h-index: 15)
Antipode     Hybrid Journal   (Followers: 50, SJR: 2.212, h-index: 69)
Anz J. of Surgery     Hybrid Journal   (Followers: 8, SJR: 0.432, h-index: 59)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apmis     Hybrid Journal   (Followers: 1, SJR: 0.855, h-index: 73)
Applied Cognitive Psychology     Hybrid Journal   (Followers: 70, SJR: 0.754, h-index: 69)
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 7, SJR: 0.632, h-index: 58)
Applied Psychology     Hybrid Journal   (Followers: 209, SJR: 1.023, h-index: 64)
Applied Psychology: Health and Well-Being     Hybrid Journal   (Followers: 50, SJR: 0.868, h-index: 13)
Applied Stochastic Models in Business and Industry     Hybrid Journal   (Followers: 5, SJR: 0.613, h-index: 24)
Aquaculture Nutrition     Hybrid Journal   (Followers: 14, SJR: 1.025, h-index: 55)
Aquaculture Research     Hybrid Journal   (Followers: 32, SJR: 0.807, h-index: 60)
Aquatic Conservation Marine and Freshwater Ecosystems     Hybrid Journal   (Followers: 36, SJR: 1.047, h-index: 57)
Arabian Archaeology and Epigraphy     Hybrid Journal   (Followers: 11, SJR: 0.453, h-index: 11)
Archaeological Prospection     Hybrid Journal   (Followers: 12, SJR: 0.922, h-index: 21)
Archaeology in Oceania     Hybrid Journal   (Followers: 13, SJR: 0.745, h-index: 18)
Archaeometry     Hybrid Journal   (Followers: 29, SJR: 0.809, h-index: 48)
Archeological Papers of The American Anthropological Association     Hybrid Journal   (Followers: 15, SJR: 0.156, h-index: 2)
Architectural Design     Hybrid Journal   (Followers: 26, SJR: 0.261, h-index: 9)
Archiv der Pharmazie     Hybrid Journal   (Followers: 3, SJR: 0.628, h-index: 43)
Archives of Drug Information     Hybrid Journal   (Followers: 5)
Archives of Insect Biochemistry and Physiology     Hybrid Journal   (SJR: 0.768, h-index: 54)
Area     Hybrid Journal   (Followers: 13, SJR: 0.938, h-index: 57)
Art History     Hybrid Journal   (Followers: 274, SJR: 0.153, h-index: 13)
Arthritis & Rheumatology     Hybrid Journal   (Followers: 54, SJR: 1.984, h-index: 20)
Arthritis Care & Research     Hybrid Journal   (Followers: 27, SJR: 2.256, h-index: 114)
Artificial Organs     Hybrid Journal   (Followers: 1, SJR: 0.872, h-index: 60)
ASHE Higher Education Reports     Hybrid Journal   (Followers: 15)
Asia & the Pacific Policy Studies     Open Access   (Followers: 16)
Asia Pacific J. of Human Resources     Hybrid Journal   (Followers: 326, SJR: 0.494, h-index: 19)
Asia Pacific Viewpoint     Hybrid Journal   (Followers: 1, SJR: 0.616, h-index: 26)
Asia-Pacific J. of Chemical Engineering     Hybrid Journal   (Followers: 8, SJR: 0.345, h-index: 20)
Asia-pacific J. of Clinical Oncology     Hybrid Journal   (Followers: 6, SJR: 0.554, h-index: 14)
Asia-Pacific J. of Financial Studies     Hybrid Journal   (SJR: 0.241, h-index: 7)
Asia-Pacific Psychiatry     Hybrid Journal   (Followers: 4, SJR: 0.377, h-index: 7)
Asian Economic J.     Hybrid Journal   (Followers: 8, SJR: 0.234, h-index: 21)
Asian Economic Policy Review     Hybrid Journal   (Followers: 4, SJR: 0.196, h-index: 12)
Asian J. of Control     Hybrid Journal   (SJR: 0.862, h-index: 34)
Asian J. of Endoscopic Surgery     Hybrid Journal   (Followers: 1, SJR: 0.394, h-index: 7)
Asian J. of Organic Chemistry     Hybrid Journal   (Followers: 6, SJR: 1.443, h-index: 19)
Asian J. of Social Psychology     Hybrid Journal   (Followers: 5, SJR: 0.665, h-index: 37)
Asian Politics and Policy     Hybrid Journal   (Followers: 12, SJR: 0.207, h-index: 7)
Asian Social Work and Policy Review     Hybrid Journal   (Followers: 5, SJR: 0.318, h-index: 5)
Asian-pacific Economic Literature     Hybrid Journal   (Followers: 5, SJR: 0.168, h-index: 15)
Assessment Update     Hybrid Journal   (Followers: 4)
Astronomische Nachrichten     Hybrid Journal   (Followers: 3, SJR: 0.701, h-index: 40)
Atmospheric Science Letters     Open Access   (Followers: 29, SJR: 1.332, h-index: 27)
Austral Ecology     Hybrid Journal   (Followers: 15, SJR: 1.095, h-index: 66)
Austral Entomology     Hybrid Journal   (Followers: 9, SJR: 0.524, h-index: 28)
Australasian J. of Dermatology     Hybrid Journal   (Followers: 8, SJR: 0.714, h-index: 40)
Australasian J. On Ageing     Hybrid Journal   (Followers: 6, SJR: 0.39, h-index: 22)
Australian & New Zealand J. of Statistics     Hybrid Journal   (Followers: 14, SJR: 0.275, h-index: 28)
Australian Accounting Review     Hybrid Journal   (Followers: 3, SJR: 0.709, h-index: 14)
Australian and New Zealand J. of Family Therapy (ANZJFT)     Hybrid Journal   (Followers: 3, SJR: 0.382, h-index: 12)
Australian and New Zealand J. of Obstetrics and Gynaecology     Hybrid Journal   (Followers: 47, SJR: 0.814, h-index: 49)
Australian and New Zealand J. of Public Health     Hybrid Journal   (Followers: 11, SJR: 0.82, h-index: 62)
Australian Dental J.     Hybrid Journal   (Followers: 6, SJR: 0.482, h-index: 46)
Australian Economic History Review     Hybrid Journal   (Followers: 6, SJR: 0.171, h-index: 12)
Australian Economic Papers     Hybrid Journal   (Followers: 31, SJR: 0.23, h-index: 9)
Australian Economic Review     Hybrid Journal   (Followers: 6, SJR: 0.357, h-index: 21)
Australian Endodontic J.     Hybrid Journal   (Followers: 3, SJR: 0.513, h-index: 24)
Australian J. of Agricultural and Resource Economics     Hybrid Journal   (Followers: 3, SJR: 0.765, h-index: 36)
Australian J. of Grape and Wine Research     Hybrid Journal   (Followers: 5, SJR: 0.879, h-index: 56)
Australian J. of Politics & History     Hybrid Journal   (Followers: 15, SJR: 0.203, h-index: 14)
Australian J. of Psychology     Hybrid Journal   (Followers: 18, SJR: 0.384, h-index: 30)
Australian J. of Public Administration     Hybrid Journal   (Followers: 419, SJR: 0.418, h-index: 29)
Australian J. of Rural Health     Hybrid Journal   (Followers: 5, SJR: 0.43, h-index: 34)
Australian Occupational Therapy J.     Hybrid Journal   (Followers: 72, SJR: 0.59, h-index: 29)
Australian Psychologist     Hybrid Journal   (Followers: 12, SJR: 0.331, h-index: 31)
Australian Veterinary J.     Hybrid Journal   (Followers: 23, SJR: 0.459, h-index: 45)
Autism Research     Hybrid Journal   (Followers: 36, SJR: 2.126, h-index: 39)
Autonomic & Autacoid Pharmacology     Hybrid Journal   (SJR: 0.371, h-index: 29)
Banks in Insurance Report     Hybrid Journal   (Followers: 1)
Basic & Clinical Pharmacology & Toxicology     Hybrid Journal   (Followers: 11, SJR: 0.539, h-index: 70)
Basic and Applied Pathology     Open Access   (Followers: 2, SJR: 0.113, h-index: 4)
Basin Research     Hybrid Journal   (Followers: 5, SJR: 1.54, h-index: 60)
Bauphysik     Hybrid Journal   (Followers: 2, SJR: 0.194, h-index: 5)
Bauregelliste A, Bauregelliste B Und Liste C     Hybrid Journal  
Bautechnik     Hybrid Journal   (Followers: 1, SJR: 0.321, h-index: 11)
Behavioral Interventions     Hybrid Journal   (Followers: 9, SJR: 0.297, h-index: 23)
Behavioral Sciences & the Law     Hybrid Journal   (Followers: 24, SJR: 0.736, h-index: 57)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 10, SJR: 0.11, h-index: 5)
Beton- und Stahlbetonbau     Hybrid Journal   (Followers: 2, SJR: 0.493, h-index: 14)
Biochemistry and Molecular Biology Education     Hybrid Journal   (Followers: 6, SJR: 0.311, h-index: 26)
Bioelectromagnetics     Hybrid Journal   (Followers: 1, SJR: 0.568, h-index: 64)
Bioengineering & Translational Medicine     Open Access  
BioEssays     Hybrid Journal   (Followers: 10, SJR: 3.104, h-index: 155)
Bioethics     Hybrid Journal   (Followers: 14, SJR: 0.686, h-index: 39)
Biofuels, Bioproducts and Biorefining     Hybrid Journal   (Followers: 1, SJR: 1.725, h-index: 56)
Biological J. of the Linnean Society     Hybrid Journal   (Followers: 16, SJR: 1.172, h-index: 90)
Biological Reviews     Hybrid Journal   (Followers: 5, SJR: 6.469, h-index: 114)
Biologie in Unserer Zeit (Biuz)     Hybrid Journal   (Followers: 41, SJR: 0.12, h-index: 1)
Biology of the Cell     Full-text available via subscription   (Followers: 9, SJR: 1.812, h-index: 69)
Biomedical Chromatography     Hybrid Journal   (Followers: 6, SJR: 0.572, h-index: 49)
Biometrical J.     Hybrid Journal   (Followers: 5, SJR: 0.784, h-index: 44)
Biometrics     Hybrid Journal   (Followers: 37, SJR: 1.906, h-index: 96)
Biopharmaceutics and Drug Disposition     Hybrid Journal   (Followers: 10, SJR: 0.715, h-index: 44)
Biopolymers     Hybrid Journal   (Followers: 18, SJR: 1.199, h-index: 104)
Biotechnology and Applied Biochemistry     Hybrid Journal   (Followers: 44, SJR: 0.415, h-index: 55)
Biotechnology and Bioengineering     Hybrid Journal   (Followers: 152, SJR: 1.633, h-index: 146)
Biotechnology J.     Hybrid Journal   (Followers: 14, SJR: 1.185, h-index: 51)
Biotechnology Progress     Hybrid Journal   (Followers: 39, SJR: 0.736, h-index: 101)
Biotropica     Hybrid Journal   (Followers: 20, SJR: 1.374, h-index: 71)
Bipolar Disorders     Hybrid Journal   (Followers: 9, SJR: 2.592, h-index: 100)
Birth     Hybrid Journal   (Followers: 38, SJR: 0.763, h-index: 64)
Birth Defects Research Part A : Clinical and Molecular Teratology     Hybrid Journal   (Followers: 2, SJR: 0.727, h-index: 77)
Birth Defects Research Part B: Developmental and Reproductive Toxicology     Hybrid Journal   (Followers: 7, SJR: 0.468, h-index: 47)
Birth Defects Research Part C : Embryo Today : Reviews     Hybrid Journal   (SJR: 1.513, h-index: 55)
BJOG : An Intl. J. of Obstetrics and Gynaecology     Partially Free   (Followers: 247, SJR: 2.083, h-index: 125)

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Journal Cover Andrologia
  [SJR: 0.528]   [H-I: 45]   [2 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0303-4569 - ISSN (Online) 1439-0272
   Published by John Wiley and Sons Homepage  [1589 journals]
  • Re: Re: Karabakan M, Bozkurt A, Hirik E, Celebi B, Akdemir S, Guzel O,
           Nuhoglu B. The prevalence of premature ejaculation in young Turkish men.
           Andrologia 2016; 24: 1–5
    • Authors: Mehmet Karabakan
      PubDate: 2018-01-15T23:46:04.428351-05:
      DOI: 10.1111/and.12935
       
  • Issue Information
    • PubDate: 2018-01-15T23:45:59.709268-05:
      DOI: 10.1111/and.12893
       
  • Sperm fluorescent in situ hybridisation study of interchromosomal effect
           in six Tunisian carriers of reciprocal and Robertsonian translocations
    • Authors: A. Hajlaoui; W. Slimani, M. Kammoun, A. Sallem, S. Braham, M. Bibi, A. Saad, S. Mougou-Zerelli
      Abstract: Carriers of structural chromosomal anomalies, translocations and inversions are at increased risk of aneuploid gametes production. Besides the direct effect on the involved chromosomes, these rearrangements might disturb the segregation of other structurally normal chromosomes during meiosis. Such event is known as interchromosomal effect. In this study, six male carriers of translocations, four reciprocals and two Robertsonians, were investigated. In addition, seven fertile men with normal 46,XY karyotypes and normal sperm characteristics were enrolled as a control group. Spermatic fluorescent in situ hybridisation specific for chromosomes X, Y, 18, 21 and 22 was carried out. The Mann–Whitney U-test was used to compare the aneuploidy rates between patients and controls. All translocation carriers showed significantly increased frequencies of disomy of all investigated chromosomes, and diploid gametes compared with the control group (p  .05). We have also observed a considerable interindividual variability in disomy and diploidy rates. These results confirm that the interchromosomal effect seems to exist and could contribute to higher rates of abnormal prenatal aneuploidy, resulting in a small increase in the risk of miscarriage and birth of children with congenital abnormalities and a potential reduction in fertility.
      PubDate: 2018-01-15T23:40:42.848465-05:
      DOI: 10.1111/and.12949
       
  • Right testicular volume is a dominant predictor of testicular function
           determined by sperm parameters and total testosterone
    • Authors: Y.-P. Huang; W. Liu, Y.-D. Liu, H.-X. Wang, K. Hu, B. Chen, M.-J. Lu
      Abstract: This study aims to evaluate the predictive value of left testicular volume (LTV) and right testicular volume (RTV) for testicular function respectively. Men who requested fertility testing for any reason were enrolled from December 2012 to November 2015. Subjects with primary scrotal diseases or a condition interfering reproductive system were excluded. Testicular volume (TV) was evaluated by scrotal ultrasound. Sex hormone and semen analysis including sperm concentration (SC) and sperm motility rate (SMR) were performed. Statistical analysis including comparison, stepwise linear regression and logistic regression was used. Two hundred and seventy-four patients with oligoasthenozoospermia/low testosterone and 27 control subjects were enrolled. Both LTV and RTV positively correlated with testicular function, and no differences were found between bilateral TV. RTV is the best independent factor associated with testicular function determined by SC (β=.292, p 
      PubDate: 2018-01-15T23:40:39.658408-05:
      DOI: 10.1111/and.12955
       
  • Evaluation of reference values of standard semen parameters in fertile
           Egyptian men
    • Authors: H. Zedan; S. Ismail, A. Gomaa, R. Saleh, R. Henkel, A. Agarwal
      Abstract: The reference values of human semen, published in the WHO's latest edition in 2010, were lower than those previously reported. The objective of this study was to evaluate reference values of standard semen parameters in fertile Egyptian men. This cross-sectional study included 240 fertile men. Men were considered fertile when their wives had recent spontaneous pregnancies with time to pregnancy (TTP) ≤12 months. The mean age of fertile men was 33.8 ± 0.5 years (range 20–55 years). The 5th percentiles (95% confidence interval) of macroscopic semen parameters were 1.5 ml for volume and 7.2 for pH. The 5th percentiles of microscopic parameters were 15 million/ml for sperm concentration, 30 million per ejaculate for total sperm count, 50% for total motility, 40% for progressive motility, 62% for vitality, 4% for normal sperm forms and 0.1 million/ml for seminal leucocyte counts. In conclusion, fertile Egyptian men had higher reference values of sperm total motility, progressive motility and vitality, and lower reference values for total sperm counts as compared to those determined by the latest edition of the WHO laboratory manual in 2010. Other semen parameters were identical to those defined by the WHO 2010 manual.
      PubDate: 2018-01-15T23:40:37.459987-05:
      DOI: 10.1111/and.12942
       
  • Human sperm handling in intracytoplasmic sperm injection processes: In
           vitro studies on mouse oocyte activation, embryo development competence
           and sperm oxidation–reduction potential
    • Authors: S. Roychoudhury; I. Maldonado-Rosas, A. Agarwal, S. C. Esteves, R. Henkel, R. Sharma
      Abstract: Polyvinylpyrrolidone (PVP) and hyaluronic acid (HA) are routinely used in handling spermatozoa for intracytoplasmic sperm injection (ICSI). As there are still concerns about possible adverse effects on the embryo, this study investigated sperm handling in a mouse ICSI model to (i) evaluate oocyte activation after injection of spermatozoa selected for rotational or linear motion in PVP; (ii) assess the effect of sperm selection in PVP, HA and medium on oocyte activation; (iii) examine the effects of PVP and HA on parthenogenetic oocyte activation and embryo development; and (iv) assess the oxidation–reduction potential (ORP) of spermatozoa exposed to PVP, HA or medium. Oocyte activation was higher when spermatozoa exhibited rotational motion rather than linear motion (79% vs. 52%; p = .05). There was no difference in oocyte activation and embryo development after parthenogenetic oocyte activation after sperm injection using PVP, HA or medium-incubated spermatozoa. PVP-selected spermatozoa exhibited lower (p 
      PubDate: 2018-01-09T01:21:13.23712-05:0
      DOI: 10.1111/and.12943
       
  • Protective influence of rosiglitazone against testicular
           ischaemia–reperfusion injury in rats
    • Authors: N. Zheng; H. Shao, D. Wu, D. Shen, X. Lin
      Abstract: Testicular torsion is a urology urgent disease which causes testicular injury and potential sterility. In this study, we explored the protective influence of rosiglitazone on testicular ischaemia–reperfusion damage. There were 28 male Sprague Dawley rats in total, which were assigned randomly to four groups. Group A was blank control one; group B was testicular injury one; group C was rosiglitazone one; group D was rosiglitazone antagonist one. The testicles were counter-rotated after 2 hr and then underwent orchiectomy 24 hr later. We found that testicular tissue structure of rats was seriously damaged in groups B and D. However, group C had better testicular architecture. Similar findings were also shown for lipid peroxidation by evaluating the MDA activity (p 
      PubDate: 2018-01-09T01:06:04.882849-05:
      DOI: 10.1111/and.12947
       
  • Impact of cigarette-smoking on sperm DNA methylation and its effect on
           sperm parameters
    • Authors: Y. Alkhaled; M. Laqqan, S. Tierling, C. Lo Porto, H. Amor, M. E. Hammadeh
      Abstract: DNA methylation is an epigenetic modification of the genome. The purpose of this study was to determine the influence of cigarette-smoking on sperm DNA methylation from a genomewide survey of sperm samples and to ascertain its effect on sperm parameters. Twenty-eight sperm DNA samples (from 14 fertile smokers as a case study and 14 proven fertile nonsmokers as controls) were subjected to Infinium 450K BeadChip arrays to identify the changes in the DNA methylation level between the two groups. Then, deep bisulphite sequencing was used to validate five CpGs on 78 samples. The results from the Infinium 450K found that only 11 CpGs showed a significant difference in DNA methylation between the case and the control groups. Five CpGs of the eleven (cg00648582, cg0932376, cg19169023, cg23841288 and cg27391564) underwent deep bisulphite sequencing where cg00648582, related to the PGAM5 gene, and the cg23841288 CpGs, related to the PTPRN2 gene amplicons, showed a significant increase in their DNA methylation level in more than one CpG in the case group. In contrast, a significant decrease was found at cg19169023 and at its various neighbouring CpGs in the TYRO3 gene-related amplicons. Furthermore, this study demonstrated a significant correlation between the variation in sperm DNA methylation level and standard sperm parameters in the case group.
      PubDate: 2018-01-09T01:05:40.524774-05:
      DOI: 10.1111/and.12950
       
  • Accessory fold of skin on the ventral surface of the penis: Is it a
           redundant prepuce'
    • Authors: S. B. Nayak; S. U. Pai, M. G. Shenoy, D. Reghunathan
      Abstract: Variations in the skin of the prepuce are very rare. We report here a variation of the penile skin as observed in an adult male cadaver aged approximately 65 years. The penis was covered by thin nonhairy skin. The glans was not covered with prepuce. There was no evidence of circumcision. The ventral surface of the penis, adjacent to the glans, had a huge fold of skin. This fold resembled the prepuce and had a hole in it. The glans penis had a normal urethral meatus. There was no evidence of hypospadias as the entire ventral surface of the penis was covered completely by the skin. We discuss the clinical importance of this accessory fold of skin.
      PubDate: 2018-01-07T21:20:49.849611-05:
      DOI: 10.1111/and.12941
       
  • Effect of metabolic and antioxidant supplementation on sperm parameters in
           oligo-astheno-teratozoospermia, with and without varicocele: A
           double-blind placebo-controlled study
    • Authors: G. M. Busetto; A. Agarwal, A. Virmani, G. Antonini, G. Ragonesi, F. Del Giudice, S. Micic, V. Gentile, E. De Berardinis
      Abstract: Since sperm require high energy levels to perform their specialised function, it is vital that essential nutrients are available for spermatozoa when they develop, capacitate and acquire motility. However, they are vulnerable to a lack of energy and excess amounts of reactive oxygen species, which can impair sperm function, lead to immotility, acrosomal reaction impairment, DNA fragmentation and cell death. This monocentric, randomised, double-blind, placebo-controlled trial investigated the effect of 6 months of supplementation with l-carnitine, acetyl-l-carnitine and other micronutrients on sperm quality in 104 subjects with oligo- and/or astheno- and/or teratozoospermia with or without varicocele. In 94 patients who completed the study, sperm concentration was significantly increased in supplemented patients compared to the placebo (p = .0186). Total sperm count also increased significantly (p = .0117) in the supplemented group as compared to the placebo group. Both, progressive and total motility were higher in supplemented patients (p = .0088 and p = .0120, respectively). Although pregnancy rate was not an endpoint of the study, of the 12 pregnancies that occurred during the follow-up, 10 were reported in the supplementation group. In general, all these changes were more evident in varicocele patients. In conclusion, supplementation with metabolic and antioxidant compounds could be efficacious when included in strategies to improve fertility.
      PubDate: 2018-01-07T21:20:30.623825-05:
      DOI: 10.1111/and.12927
       
  • Association of asymptomatic Chlamydia trachomatis infection with male
           infertility and the effect of antibiotic therapy in improvement of semen
           quality in infected infertile men
    • Authors: M. H. Ahmadi; A. Mirsalehian, M. A. Sadighi Gilani, A. Bahador, K. Afraz
      Abstract: The role of asymptomatic infections caused by Chlamydia trachomatis in male infertility and the efficacy of antibiotics in the treatment of this condition are not yet definitely determined. A total of 165 infertile males having abnormal semen parameters (study group) as well as 165 healthy fertile men (control group) were included. Semen samples were taken from all participants and after analysing for semen parameters, undergone real-time PCR, and reactive oxygen species (ROS) as well as total antioxidant capacity (TAC) assays. Infected individuals of study group were treated with antibiotic. One month after the treatment completion, second semen samples were taken and undergone all the tests mentioned. The frequency of C. trachomatis was significantly higher in the infertile men compared with the fertile ones (4.2% vs 0.6%). Most of the semen parameters were improved and reached their normal range, the level of TAC elevated and ROS level as well as ROS/TAC ratio reduced after antibiotic treatment. Moreover, wives of three infected infertile men (42.9%) became pregnant 4 months after the treatment completion. Our data suggest that asymptomatic infection caused by C. trachomatis is correlated with male infertility and antibiotic therapy can improve the semen quality and fairly treat the male infertility.
      PubDate: 2018-01-01T21:40:38.365684-05:
      DOI: 10.1111/and.12944
       
  • Effect of l-arginine addition on long-term storability of ram semen
    • Authors: Ş. Özer Kaya; S. Gür, E. Kaya
      Abstract: This study was conducted to investigate the effect of l-arginine addition on long-term storability of ram semen. Six Akkaraman rams were used as material. Semen samples were collected. Pooled samples were diluted and were divided into six equal aliquots. While aliquot 1 was kept as control, the stock solutions including 0.1, 0.5, 1, 5 and 10 mm l-arginine were added to other aliquots. All aliquots were routinely frozen in 0.25-ml straws at −130°C liquid nitrogen vapour and stored in liquid nitrogen −196°C until being analysed. The equilibrated and thawed sperm motility, membrane integrity and arginase activity were evaluated. While the 10 mm l-arginine supplementation significantly (p 
      PubDate: 2017-12-28T03:45:21.666222-05:
      DOI: 10.1111/and.12945
       
  • Level of neutral alpha-1,4-glucosidase in seminal plasma of Chinese men
    • Authors: Z. Qiu; Q. Chu, W. Zhang, C. Luo, S. Quan
      Abstract: Neutral alpha-1,4-glucosidase (NAG) is a crucial biomarker for the function of epididymis and is reported to be associated with semen quality. However, the correlation between NAG and Chinese semen quality has never been reported. This study aimed to investigate the level of NAG in the seminal plasma of Chinese men. A total of 394 cases of seminal plasma samples from normal, subfertile and infertile men were enrolled in this study. Male subfertility was caused by teratozoospermia, asthenospermia, severe oligozoospermia, asthenoteratozoospermia, oligoasthenospermia and oligoasthenoteratozoospermia. Male infertility was resulted from azoospermatism. The level of NAG was detected by spectrophotometry. Results showed that the level of NAG in normal men was significantly higher than that in subfertile and infertile men (p = .000). Meanwhile, the level of NAG in subfertile men was significantly greater than that in infertile men (p = .000). In addition, a significant difference was observed in normozoospermia, teratozoospermia, asthenospermia, severe oligozoospermia, asthenoteratozoospermia, oligoasthenospermia, oligoasthenoteratozoospermia and azoospermatism (p 
      PubDate: 2017-12-28T01:15:24.100804-05:
      DOI: 10.1111/and.12948
       
  • Development and implementation of a novel panel consisting 20 markers for
           the detection of genetic causes of male infertility
    • Authors: S. Bahrami Zadegan; S. Dabbagh Bagheri, A. Joudaki, M. H. Samiee Aref, A. H. Saeidian, M. Abiri, S. Zeinali
      Abstract: Azoospermia factor (AZF) genes are involved in spermatogenesis. Deletions in the region of these genes have been recognised as a major genetic cause of infertility due to defects in spermatogenesis. Klinefelter syndrome (KS) is the other main cause of male infertility. This study was performed to establish a novel method for the detection of genetic causes of infertility in males and also to investigate the prevalence, extent and position of Y chromosome microdeletions in Iranian infertile men. We developed a newly designed panel of fluorescent multiplex-PCR method to amplify 20 markers (15 sequence-tagged sites (STSs) markers which are placed in the Y chromosome AZF region, 2 short tandem repeats (STRs) and 3 segmental duplications (SDs)). This multifunctional method is for the simultaneous detection of Y chromosome microdeletions and KS. Among 149 studied infertile men, one was detected to suffer from KS and seven (4.7%) were detected with the presence of one or more deleted STS loci. The main cause of infertility for the remaining patients would be nongenetic factors. This strategy is represented as a fast and accurate method to determine the frequencies of different AZF microdeletions which are suitable for use in clinical purposes.
      PubDate: 2017-12-28T01:00:35.767861-05:
      DOI: 10.1111/and.12946
       
  • Relationships between total testicular volume, reproductive parameters and
           surrogate measures of adiposity in men presenting for couple's infertility
           
    • Authors: K. Ehala-Aleksejev; M. Punab
      Abstract: The objective of this study was to investigate the relationships between total testicular volume (TTV), reproductive parameters and adiposity measures: body mass index, waist circumference and waist-to-height ratio. Semen analysis was performed, and reproductive hormone levels were measured in 2,672 male patients (mean age 32.6) due to couple's infertility. Significant, positive correlations between semen parameters and the TTV were found. Gonadotrophins were negatively related to the TTV, and testosterone was not related to the TTV. Three anthropometric parameters were negatively correlated to the total sperm count, and sperm concentration seen in men with a TTV of ≤46 ml. In the case of a TTV>46 ml, only the semen volume was inversely correlated with WC and WHtR. These changes occurred from a WHtR ≥0.56, WC ≥102 cm and BMI ≥29 and were more pronounced between WHtR and the TTV. Adiposity was associated with a significant testosterone level decline but did not have a major impact on the gonadotrophin levels. This study shows the divergent results in sperm parameters in different TTV groups in the presence of central adiposity.
      PubDate: 2017-12-28T00:15:40.334645-05:
      DOI: 10.1111/and.12952
       
  • Pentoxifylline mitigates detrimental impact of chronic nonbacterial
           prostatitis on sperm characteristics, reproductive hormones and
           histopathology in rats
    • Authors: S. Yousefi; M. Ahmadi-hamedani, R. Narenji Sani, H. R. Moslemi, S. Ghafari Khaligh, M. M. Darvishi
      Abstract: The protective role of pentoxifylline (PTX) on sperm characteristics, reproductive hormones and histopathology following carrageenan-induced chronic nonbacterial prostatitis (CNP) was investigated in male Wistar rats. Thirty-six rats were grouped into six rats per group. Group 1 (control) received saline normal. Group 2 received a single intraprostatic dose of 3% carrageenan (50 μl) on day 1 (CNP). Groups 3 and 5 received cernilton (standard drug) and PTX orally at 100 and 50 mg/kg for 14 consecutive days respectively. Groups 4 and 6 received a single dose of 3% carrageenan (50 μl) intraprostatically on day 1 followed by cernilton and PTX orally at 100 and 50 mg/kg on the eighth day for 14 consecutive days respectively. Prostatic index, serum prostatic specific antigen, malondialdehyde, testosterone and luteinising hormone levels were significantly increased (p 
      PubDate: 2017-12-18T21:41:21.525815-05:
      DOI: 10.1111/and.12932
       
  • NR5A1 mutations are not associated with male infertility in Indian men
    • Authors: D. V. S. Sudhakar; S. Nizamuddin, G. Manisha, J. R. Devi, N. J. Gupta, B. N. Chakravarthy, M. Deenadayal, L. Singh, K. Thangaraj
      Abstract: NR5A1 or steroidogenic factor 1 (SF1) is an autosomal gene, which encodes a protein that is a member of nuclear receptor family. NR5A1 regulates the transcription of numerous genes that are expressed in hypothalamic–pituitary–gonadal axis and adrenal cortex which in turn, coordinate the gonadal development, steroidogenesis and sex differentiation. Several mutations in NR5A1 have been reported to cause gonadal dysgenesis with adrenal insufficiency in individuals with 46,XY karyotype. However, studies in the past few years have shown that NR5A1 mutations can also contribute to primary ovarian insufficiency and impaired spermatogenesis. As there is no genetic study on NR5A1 in Indian infertile men, we have sequenced the entire coding region (exons 2–7) of NR5A1 in 502 infertile men of which, 414 were non-obstructive azoospermic and 88 severe oligozoospermic, along with 427 ethnically matched fertile controls. Interestingly, none of the mutations reported to be associated with male infertility were found in our study, except one polymorphism, rs1110061. However, it was not significantly different between infertile and fertile groups (p = .76). In addition, we have identified six intronic variants; but none of them was significantly associated with male infertility.
      PubDate: 2017-12-18T21:40:50.053909-05:
      DOI: 10.1111/and.12931
       
  • Y chromosome microdeletions and varicocele as aetiological factors of male
           infertility: A cross-sectional study
    • Authors: E. P. de Sousa Filho; D. M. Christofolini, C. P. Barbosa, S. Glina, B. Bianco
      Abstract: The pathogenic mechanisms by which varicocele disrupt spermatogenesis are not clearly understood. Over 30% of male infertility cases resulting from spermatogenic problems are associated with genetic abnormalities, and Y chromosome microdeletions are the second most frequent genetic cause. Here, we aimed to evaluate the frequency of Y chromosome microdeletion in infertile men with varicocele. A cross-sectional study comprising 51 infertile men with varicocele presenting spermatogenesis failures was performed. Y chromosome microdeletion research was made using polymerase chain reaction. Of the 51 men with infertility and varicocele, 35.3% (18/51) had nonobstructive azoospermia and 64.7% had severe oligozoospermia. Y chromosome microdeletion was found in two cases (3.9%): one patient had nonobstructive azoospermia and complete microdeletion of the AZFb and AZFc regions, and another patient had severe oligozoospermia and complete microdeletion of the AZFc region. Although in recent years, a genetic aetiology related to Y chromosome microdeletions has become a major cause of infertility in males with spermatogenesis failures, in this study, the varicocele was the clinical cause of seminal abnormalities that could lead to infertility, suggesting that both varicocele and Y chromosome microdeletion aetiologies can present, alone or combined, as factors of male infertility.
      PubDate: 2017-12-18T21:40:43.321094-05:
      DOI: 10.1111/and.12938
       
  • Testicular sperm extraction after laparoscopic orchiectomy for bilateral
           postpubertal intra-abdominal cryptorchidism: What chance of sperm
           retrieval'
    • Authors: G. Cito; P. A. Della Camera, S. Degli Innocenti, M. E. Coccia, G. Nesi, A. Cocci, S. Morselli, A. Minervini, M. Carini, M. Serni, M. Gacci, A. Natali
      Abstract: Infertility occurs in up to 54% of men with bilateral undescended testes. Orchiectomy is considered the best therapeutic approach, especially when cryptorchidism is diagnosed in adulthood, due to a high risk of malignancy. A 33-year-old man was referred with a clinical presentation of empty scrotum and an ultrasonography and magnetic resonance imaging evaluation of intra-abdominal bilateral cryptorchidism. Follicle-stimulating hormone was 23.20 IU/L, luteinising hormone was 14.10 IU/L, total testosterone was 12.1 nmol/L, and 17-beta-oestradiol was 0.16 nmol/L. Semen analysis showed absolute azoospermia. Tumour marker levels were in the normal range. Testicular volume was 4.0 ml for right testis and 4.6 ml for left testis. The patient underwent a laparoscopy bilateral orchiectomy and subsequently a testicular sperm extraction (TESE), in the purpose to finding mature spermatozoa. The biological examination revealed the presence of immature sperm cells, not efficient for a cryopreservation. The histologic analyses show a pattern of Sertoli cell-only syndrome and maturation arrest. TESE might be a good option for patients with absolute azoospermia and cryptorchidism, especially if bilateral. The procedure, performed after orchiectomy, is safe and does not have any impact on patient's health, although it is important to clarify the very low potential of sperm recovery.
      PubDate: 2017-12-15T04:38:00.210482-05:
      DOI: 10.1111/and.12936
       
  • Association of serum testosterone levels and testicular volume in adult
           patients
    • Authors: S. F. Ruiz-Olvera; O. Rajmil, J.-R. Sanchez-Curbelo, J. Vinay, J. Rodriguez-Espinosa, E. Ruiz-Castañé
      Abstract: A retrospective observational study was undertaken to gain new insight into the relationship between total testicular volume and levels of serum testosterone, luteinising hormone, follicle-stimulating hormone, prolactin and clinical variables. A total of 312 men with sexual dysfunction or infertility were divided into groups A and B (156 each) on the basis of basal plasma testosterone ≤5 nmol/L of ≥12 nmol/L respectively. Group A was subclassified in A1 (primary hypogonadism) and A2 (secondary hypogonadism). There were significant differences in total testicular volume between group A (15.33 ± 11.94 ml) and group B (36.74 ± 6.9; p 
      PubDate: 2017-12-12T23:32:01.682641-05:
      DOI: 10.1111/and.12933
       
  • Carnosine prevents testicular oxidative stress and advanced glycation end
           product formation in D-galactose-induced aged rats
    • Authors: A. F. Aydın; C. Küçükgergin, J. Çoban, I. Doğan-Ekici, S. Doğru-Abbasoğlu, M. Uysal, N. Koçak-Toker
      Abstract: D-Galactose is shown to mimic natural ageing in rodents by exacerbating oxidative stress and glycation. Steroid production and having a poor antioxidant system make testis vulnerable to galactose-induced ageing. Antioxidation and antiglycating actions of carnosine may be intriguing for prevention of testicular ageing. In this study, male Wistar rats were applied D-galactose (300 mg/kg; subcutaneously 5 days a week) and carnosine (250 mg/kg; intraperitoneally 5 days a week) along with D-galactose for 2 months. D-Galactose treatment increased testicular reactive oxygen species, thiobarbituric acid reactive substances, diene conjugates, protein carbonyls, advanced oxidation products of proteins and advanced glycation end products. Carnosine was capable of repelling oxidative stress and glycation produced by D-galactose. Johnsen's score, which describes histopathological evaluation, was also significantly improved with preserved spermatogenesis by carnosine. It appears that carnosine deters the testicular oxidative stress due to galactose-induced ageing directly by its antioxidative and antiglycating properties.
      PubDate: 2017-12-12T00:28:03.607305-05:
      DOI: 10.1111/and.12939
       
  • Correlation of biochemical constituents of seminal plasma with semen
           quality in Teddy goat (Capra hircus) bucks
    • Authors: S. Umar; M. Ahmad, I. Ahmad, M. Zubair, Z. Umar, A. S. Qureshi, A. Manzoor, A. Murtaza, A. Shaukat
      Abstract: This study was planned to determine the relationship between semen quality parameters and the levels of biochemical constituents of seminal plasma of Teddy (Capra hircus) buck semen. For this purpose, semen ejaculates were collected from five mature healthy Teddy bucks. All the experimental bucks were kept under natural environmental conditions. Semen was collected twice in a week for the duration of 6 weeks by Artificial Vagina (AV) in the breeding season (February-April). Two successive ejaculates of single buck were pooled at time of collection, and a total of 60 semen samples were processed for semen analysis. Sperm per cent motility, sperm concentration, dead sperm percentage, morphological abnormal spermatozoa, plasma membrane integrity were correlated with biochemical constituents of seminal plasma. The mean per cent motility (89.18% ± 0.37%), sperm concentration (1.86 ± 0.04 × 109/ml), dead sperm percentage (8.08% ± 0.29%), morphological abnormal spermatozoa (6.05% ± 0.29%) and plasma membrane integrity (88.22% ± 0.34%) were recorded. The seminal plasma contained Na+ (144.12 ± 1.59 mEq/L), K+ (27.38 ± 0.49 mEq/L), Cl− (65.73 ± 0.45 mEq/L), Ca++ (9.34 ± 0.22 mg/dl), P (19.32 ± 0.97 mg/dl), aspartate aminotransferase (AST; 26.48 ± 1.30 IU/L), alanine aminotransferase (ALT; 168.47 ± 5.18 IU/L), lactate dehydrogenase (LDH; 215.98 ± 6.06 IU/L), albumin (1.90 ± 0.10 g/dl), globulins (2.08 ± 0.11 g/dl) and total protein (3.98 ± 0.20 g/dl). The collected data were analysed by applying Pearson's correlation coefficients. Dead sperm percentage had negative correlation with sodium (r = −.278, p 
      PubDate: 2017-12-12T00:26:43.346808-05:
      DOI: 10.1111/and.12940
       
  • Adjuvant potential of virgin coconut oil extract on antiretroviral
           therapy-induced testicular toxicity: An ultrastructural study
    • Authors: O. O. Ogedengbe; A. I. Jegede, I. O. Onanuga, U. Offor, A. I. Peter, E. N. Akang, E. C. S. Naidu, O. O. Azu
      Abstract: The effects of Virgin coconut oil as an adjuvant to highly active antiretroviral therapy (HAART) were investigated on the testicular ultrastructure and biochemical markers in rats. Twenty male Sprague-Dawley rats, weighing 153-169 g were divided into four groups and treated as follows: control A (distilled water), B (HAART), C (HAART+Virgin coconut oil 10 ml/kg) and D (Virgin coconut oil [VCO] 10 ml/kg). Testicular segments were evaluated using transmission electron microscopy. Serum was assayed for testosterone, luteinising hormone, follicle stimulating hormone and testicular tissue for malondialdehyde and glutathione. Ultrastructure of basement membrane (Bm), mitochondria and spermatocytes was normal in the control group. HAART-treated group showed significant increase (p 
      PubDate: 2017-12-12T00:23:11.547423-05:
      DOI: 10.1111/and.12930
       
  • Alterations in DNA methylation patterns and gene expression in spermatozoa
           of subfertile males
    • Authors: M. Laqqan; M. E. Hammadeh
      Abstract: This study was designed to evaluate the DNA methylation patterns and gene expression in spermatozoa from subfertile males. Thirty samples were subjected to 450K arrays as a screening study to evaluate the variation in sperm DNA methylation levels between cases and controls groups, and then three CpG sites (cg07227024, cg05813498 and cg23081194) have the highest difference in methylation levels and located within ALS2CR12, GAA and UBE2G2 genes respectively; these were selected for further analysis using deep bisulphite sequencing and qPCR in 136 samples (64 proven fertile males “controls” and 72 subfertile males “cases”). A significant difference in the methylation level was found between cases and controls at two CpGs, six CpGs and three CpGs in ALS2CR12, GAA and UBE2G2 gene-related amplicon respectively. Besides, the qPCR results showed a significant change in the expression levels of GAA, UBE2G2 and ALS2CR12 gene in cases compared to the controls (p ≤ .00001). In conclusion, the methylation levels at CpGs in GAA, UBE2G2 and ALS2CR12 gene amplicons were significantly different in subfertile compared to proven fertile males. In addition, a significantly different was showed in the expression levels of GAA, UBE2G2 and ALS2CR12 genes in subfertile males compared to proven fertile males.
      PubDate: 2017-12-12T00:21:55.797004-05:
      DOI: 10.1111/and.12934
       
  • Establishment of experimental autoimmune prostatitis model by T2 peptide
           in aluminium hydroxide adjuvant
    • Authors: L. Zhang; A. U. Ihsan, Y. Cao, Y. Cheng, X. Zhou
      Abstract: A mouse model was developed to simulate the clinical features of chronic prostatitis/chronic pelvic pain syndrome using peptide (T2). Forty C57BL/6 mice were divided into four groups of 10 mice each, averagely and randomly. T2 plus aluminium hydroxide adjuvant group was given subcutaneous injection with the emulsion mixture of T2 and aluminium hydroxide adjuvant, the T2 group with T2, the aluminium hydroxide adjuvant group with aluminium hydroxide adjuvant and the normal control group with 0.9/% NaCl solution. Haematoxylin andeosin staining was used to observe the inflammation of the prostate. Plasma levels of TNF-α and CRP were detected by ELISA kit. The expression of IL-1βin the prostate was investigated by immunohistochemistry. The statistical differences between the groups were compared by t test. Histopathological analyses demonstrated that prostate lesions were most severe in the group immunised with T2 plus aluminium hydroxide adjuvant. Plasma levels of TNF-α and CRP were statistically elevated compared with control groups. The expression levels of IL-1β in the prostate were more obvious than control groups. T2 in aluminium hydroxide adjuvant subcutaneous injection could successfully set up experimental autoimmune prostatitis in C57BL/6 mice. This murine model would be greatly beneficial to further comprehend the aetiology, pathogenesis and explicit treatment of CP/CPPS.
      PubDate: 2017-12-04T00:05:52.009263-05:
      DOI: 10.1111/and.12922
       
  • Towards the identification of reliable sperm biomarkers for male
           infertility: A sperm proteomic approach
    • Authors: P. Intasqui; A. Agarwal, R. Sharma, L. Samanta, R. P. Bertolla
      Abstract: Male infertility evaluation is mainly based on semen analysis. Thus, identification of additional diagnostic methods is valuable. The aim of this study was to analyse the sperm proteome of infertile men to identify the underlying mechanisms and reliable diagnostic biomarkers. This cross-sectional study consisted of 16 infertile men and seven proven fertile men. An LC-MS/MS approach was performed in five pooled samples of each group (proven fertile men, primary infertility and secondary infertility). Differentially expressed proteins were used for functional enrichment analyses, and the most central proteins involved in altered functions in both infertile groups and the testis-specific proteins were validated using Western blotting and immunocytochemistry. In total, 1,305 sperm proteins were identified, of which 102 were underexpressed and 15 were overexpressed proteins in both infertile groups. Underexpressed proteins were mostly related to protein post-translational modification and folding, especially BAG6, HSPA2 and SPA17. Validation analysis revealed an underexpression of BAG6 in infertile men, whereas HSPA2 and SPA17 expressions did not differ between the groups. No differences were observed in the sperm localisation of these proteins. An overexpression of HIST1H2BA—a testis-specific protein—was observed in both proteomic approaches. Therefore, BAG6 and HIST1H2BA are potential candidates for male infertility biomarkers.
      PubDate: 2017-12-04T00:00:51.271498-05:
      DOI: 10.1111/and.12919
       
  • Cerium oxide nanoparticle elicits oxidative stress, endocrine imbalance
           and lowers sperm characteristics in testes of balb/c mice
    • Authors: O. A. Adebayo; O. Akinloye, O. A. Adaramoye
      Abstract: The toxicity of metallic nanoparticles is a growing concern due to its application in industries and homes. We investigated the toxicity of cerium oxide nanoparticles (CeO2NPs) on reproductive system in male balb/c mice. Twenty mice were divided into four groups of five animals each and treated thus: normal saline (control), 100, 200 and 300 μg/kg CeO2NPs (i.p.,) thrice in a week for five consecutive weeks. Results showed that CeO2NPs significantly reduced the levels of haemoglobin, PCV and RBC count relative to controls. In addition, luteinising and follicle-stimulating hormones (FSH and LH) and prolactin were significantly reduced in the mice. Specifically, CeO2NPs at 100 μg/kg decreased testosterone by 23%, while CeO2NPs at 200 μg/kg decreased FSH, LH and prolactin by 25%, 26% and 13%, respectively. Testicular malondialdehyde was increased by 103%, 106% and 135% in mice treated with 100, 200 and 300 μg/kg CeO2NPs, respectively. CeO2NPs caused a significant reduction in activities of antioxidant enzymes and levels of reduced glutathione and total nitric oxide. Moreso, CeO2NPs decreased sperm motility and count and increased total sperm abnormality in mice. Histology revealed congestion and degeneration of seminiferous tubules. Overall, CeO2NPs induces testicular dysfunction via disruption of antioxidant/oxidant balance and endocrine suppression.
      PubDate: 2017-11-21T21:51:23.178625-05:
      DOI: 10.1111/and.12920
       
  • Vitamin E improves testicular damage in streptozocin-induced diabetic
           rats, via increasing vascular endothelial growth factor and
           poly(ADP-ribose) polymerase-1
    • Authors: S. S. Omar; R. G. Aly, N. M. Badae
      Abstract: The precise mechanism by which diabetes impairs spermatogenesis and testicular function is not exactly known. Vascular endothelial growth factor (VEGF) and poly(ADP-ribose) polymerase-1 (PARP-1) are important for germ cell homeostasis and repair of DNA respectively. The aim of this study was to investigate the correlation between diabetes-induced testicular damage and testicular VEGF and PARP-1 expression and the possible protective role of vitamin E supplementation. A total of 45 male Wistar albino rats were randomly divided into three groups: Group I (nondiabetic rats), Group II (streptozocin-induced diabetic rats) and Group III (streptozocin-induced diabetic rats treated orally with 0.4 mg/kg vitamin E). Five weeks later, testicular tissue was used for assessment of MDA concentration by colorimetry, histopathological examination and immunostaining for PARP-1 and VEGFIn diabetic rats, testicular weight, seminiferous tubule diameter and germinal epithelial thickness were decreased, basement membrane was thickened and Johnsen score decreased. Reduced VEGF and PARP-1 immunostaining were associated with decreased Johnsen score in diabetic rats. Vitamin E administration was protective against oxidative stress-associated damage evidenced by lower MDA levels, improved testicular weight, spermatogenesis and higher immunostaining for VEGF and PARP-1. Testicular VEGF and PARP-1 might therefore be helpful biomarkers for diabetic testicular damage. Administration of vitamin E may have a protective role against diabetes-induced testicular damage.
      PubDate: 2017-11-21T21:50:54.726952-05:
      DOI: 10.1111/and.12925
       
  • Gradient sperm selection for reproductive techniques in cattle: Is Isolate
           a suitable replacement for Percoll'
    • Authors: B. Sepúlveda; M. E. Arias, L. Aguila, F. Zambrano, R. Sánchez, R. Felmer
      Abstract: In assisted reproductive techniques, it is essential to perform a sperm selection to obtain spermatozoa with high motility and membrane integrity for in vitro fertilisation (IVF) and high-DNA integrity for intracytoplasmic sperm injection (ICSI). In this study, we evaluated whether Isolate® was a suitable substitute for Percoll® for assisted reproductive techniques. Commercial cryopreserved bovine semen was used after selection in both gradients, and plasma and acrosome membrane integrity, reactive oxygen species (ROS) levels, DNA integrity and mitochondrial membrane potential (ΔΨm) were assessed by flow cytometry. Motility parameters were also evaluated by CASA system. A similar percentage of spermatozoa with intact plasma membrane, acrosome integrity and high ΔΨm was observed in both sperm selection methods, but only Percoll® showed higher percentage of spermatozoa with intact plasma and acrosome membrane compared to the post-thawing group. No differences were observed in the motility, ROS, DNA fragmentation and on the in vitro embryo production in all experimental groups. In conclusion, the selection of bovine spermatozoa with Isolate® generates spermatozoa with similar quality parameters and embryonic development compared to Percoll® providing a suitable alternative sperm selection method for assisted reproductive techniques in this species.
      PubDate: 2017-11-21T21:50:49.675691-05:
      DOI: 10.1111/and.12921
       
  • Impact of alcohol and cigarette smoking consumption in male fertility
           potential: Looks at lipid peroxidation, enzymatic antioxidant activities
           and sperm DNA damage
    • Authors: S. Aboulmaouahib; A. Madkour, I. Kaarouch, O. Sefrioui, B. Saadani, H. Copin, M. Benkhalifa, N. Louanjli, R. Cadi
      Abstract: Alcohol intake and cigarette smoking are the major lifestyle factors with negative impact on fertility. We were interested to evaluate the negative impact of these factors on oxidative stress (OS), enzymatic antioxidant activity (EAO) of spermatozoa and on its DNA damage. This study included 108 male infertile patients with normal range of sperm conventional parameters but with unexplained infertility in assisted reproductive technologies programme. Firstly, OS was analysed based on lipid peroxidation (MDA) and EAO which included catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR). Secondly, we evaluated DNA fragmentation by TUNEL assay and chromatin decondensation by aniline blue colouration. The whole lot was divided into four groups: control (nonalcoholic and nonsmoker patients), alcohol group, smoking group and alcohol-smoking group. The results showed, in three last groups compared to control an increased CAT, SOD and GR activities with high MDA level especially in smoking and alcohol-smoking group. The latter showed the highest values of DNA fragmentation and chromatin decondensation (31% and 39%) to exceed DNA damage normal range. Indeed, smoking and alcohol intake lead to increase EAO due to long-term unbalanced antioxidant/oxidation ratio with high OS which cause consequently sperm DNA damage calling in need by urgency to change the lifestyle behaviour.
      PubDate: 2017-11-21T21:50:47.050898-05:
      DOI: 10.1111/and.12926
       
  • Aqueous extract of yellow maca (Lepidium meyenii) improves sperm count in
           experimental animals but response depends on hypocotyl size, pH and routes
           of administration
    • Authors: L. Sanchez-Salazar; G. F. Gonzales
      Abstract: Lepidium meyenii, a Peruvian plant growing over 4000 m.a.s.l., has effects on nutrition and fertility. The purpose of this study was to evaluate the sperm count in 105 male mice receiving boiled aqueous extract of yellow maca hypocotyls from different sizes, under different pH conditions and using two different routes of administration. Five mice per group were treated daily for 3 days with vehicle (oral and intraperitoneal) or maca aqueous extracts (5 mg/0.5 ml/day) belonging to the first, second, third and fourth categories, according to their hypocotyl size. On day four, sperm count was evaluated at testis, epididymis and vas deferens. Sperm count was higher in mice receiving maca from the larger sizes (first and second categories). Reduction in maca extract pH increased sperm count, whereas an increase in the pH resulted in a reduction in sperm count. The effect of pH reduction is observed only in maca from the first and second categories. Aqueous extract of maca was effective only after oral administration. In conclusion, the larger size of hypocotyls presented the best biological effect, and the low pH in the extract and the transformation after gastrointestinal passage are both important for its biological action.
      PubDate: 2017-11-21T05:40:22.368236-05:
      DOI: 10.1111/and.12929
       
  • Expression and localisation of RXFP3 in human spermatozoa and impact of
           INSL7 on sperm functions
    • Authors: S. Heidari; A.H. Taromchi, R. Nejatbakhsh, S. Shokri
      Abstract: Insulin-like peptide 7 (INSL7) or relaxin-3 is a member of the insulin superfamily that is recently discovered. This hormone interacts with relaxin family peptide receptor 3 (RXFP3). Although recent studies of INSL7 have focused on its function in the brain as a neuropeptide, spermatozoa may be a candidate target of INSL7 due to its detection in testes and contains binding sites. Therefore, this study aims to analyse the expression and localisation of RXFP3 on human spermatozoa and to assess the effect of INSL7 on human sperm motility. We have incubated normal semen samples in different doses of INSL7. Sperm motility was analysed by Computer Assisted Sperm Analysis. Moreover, localisation and expression of RXFP3 were assessed in human spermatozoa by immunofluorescence and RT-PCR respectively. This study indicated that RXFP3 mainly localised in the post-acrosomal region of sperm head and neck. However, we did not observe expression of RXFP3 mRNA in human spermatozoa. This study showed that INSL7 alleviated the natural decline in sperm motility after a 4-hr incubation period. This was particularly observed in the 1.8 pmol/L treated samples. These data suggested that most likely expression of RXFP3 arrested in spermiogenesis, but the RXFP3 peptide existed on the surface of mature spermatozoa.
      PubDate: 2017-11-21T04:55:50.537911-05:
      DOI: 10.1111/and.12928
       
  • Essential role of brain-derived neurotrophic factor (bdnf) in diabetic
           erectile dysfunction
    • Authors: L. Hu; S. Qi, K. Zhang, Q. Fu
      Abstract: Erectile dysfunction (ED) is a worldwide problem threatens men's health. The incidence of ED in diabetic patients is higher than that in the healthy population. The incidence of peripheral and autonomic neuropathy is significantly higher in diabetic patients than in normal men. Vasomotor nerves play an important role in the regulation of erectile function. Degeneration of autonomic and sensory nerves is a common type of diabetic neuropathy (DNP) and is closely related to erectile function. Brain-derived neurotrophic factor (BDNF) has been demonstrated to improve diabetic erectile dysfunction in rat models and in humans. However, this process has not yet been fully elucidated yet. In this article, we summarise the mechanisms by which BDNF improves diabetic erectile dysfunction.
      PubDate: 2017-11-21T04:45:26.190677-05:
      DOI: 10.1111/and.12924
       
  • Oestradiol-17β is a local factor inducing the early stage of
           spermatogenesis in mouse testes
    • Authors: K.G. Kim; Y. S. Park
      Abstract: This study was undertaken to elucidate the effect of testicular oestradiol-17β (E2) on spermatogenesis. Spermatogonial development and spermatogenic gene expression in testicular germ cells were investigated using an in vitro culture system supplemented with E2. E2 stimulated spermatocytogenic development of cultured testicular germ cells regardless of the addition of follicle-stimulating hormone and testosterone to the culture medium. E2 also induced the expression of genes encoding synaptonemal complex protein 1 and protamine 1, proteins required for spermatogenesis. In conclusion, the results of this study suggest that E2 is a spermatocytogenic factor that acts via the stimulation of spermatogenic gene expression.
      PubDate: 2017-11-20T00:20:42.07661-05:0
      DOI: 10.1111/and.12905
       
  • Expression of paraoxonase types 1, 2 and 3 in reproductive tissues and
           activity of paraoxonase type 1 in the serum and seminal plasma of bulls
    • Authors: C. E. R. Ferreira; C. S. Haas, K. L. Goularte, M. T. Rovani, F. F. Cardoso, A. Schneider, B. G. Gasperin, T. Lucia
      Abstract: The paraoxonases types 1, 2 and 3 (PON1, PON2 and PON3, respectively) are enzymes that degrade lipid peroxides, preventing oxidative damages relevant for male reproductive function. This study determined the expression of those three paraoxonases in reproductive tissues of bulls and evaluated correlations among the activity of PON1 in the serum and seminal plasma with breeding soundness parameters in bulls. The expression of PON1, PON2 and PON3 was characterised by RT-PCR in samples of testicular parenchyma, vesicular glands and epididymis collected from three slaughtered bulls. All three paraoxonases were expressed in the testicular parenchyma, PON2 and PON3 were both expressed in the epididymis head and PON3 was also expressed in the epididymis tail. The PON1 activity was determined in samples of serum and seminal plasma from 110 bulls submitted to breeding soundness evaluation. There was a strong correlation (r = .90) between the activity of the PON1 in both serum and seminal plasma (p 
      PubDate: 2017-11-16T05:55:25.038791-05:
      DOI: 10.1111/and.12923
       
  • The effect of cigarette smoking on human seminal parameters, sperm
           chromatin structure and condensation
    • Authors: R. M. Mostafa; Y. S. Nasrallah, M. M. Hassan, A. F. Farrag, A. Majzoub, A. Agarwal
      Abstract: Considerable debate still exists regarding the effects of cigarette smoking on male fertility. This work aimed to explore effects of cigarette smoking on semen parameters and DNA fragmentation on 95 infertile patients who were divided into infertile male nonsmokers (45) and infertile male smokers (50). Smokers were subdivided according to a number of cigarettes smoked per day into mild (≤10), moderate (11-20) and heavy smokers (≥21). Semen analysis, sperm chromatin condensation integrity with aniline blue staining and sperm viability were compared between the study groups. A significant decrease has been shown in sperm count (p = .006), progressive motility (p = 
      PubDate: 2017-11-09T22:00:41.928973-05:
      DOI: 10.1111/and.12910
       
  • Effects of Chlamydia trachomatis infection on sperm chromatin condensation
           and DNA integrity
    • Authors: L. Dehghan Marvast; A. R. Talebi, J. Ghasemzadeh, A. Hosseini, A. A. Pacey
      Abstract: The present study was performed to investigate the relation of Chlamydia trachomatis infection to sperm chromatin/DNA integrity in a population of infertile men (male partner of infertile couples) from Iran. Blood, semen and first-void urine samples were obtained from 250 infertile men. Data were analysed with regard to the results of (i) serological analysis for specific antibodies to C. trachomatis in serum; (ii) the presence of C. trachomatis and DNA in first-void urine; and (iii) in the semen sample of the male partner, in addition to sperm analysis, four different tests (aniline blue, chromomycin A3, acridine orange and TUNEL) were used to detect sperm chromatin and DNA abnormalities. The main conclusions of the results were: (i) no evidence of C. trachomatis infection in semen samples was found; (ii) sperm DNA fragmentation and chromatin studies were not correlated with C. trachomatis diagnosis; (iii) the percentage of DNA fragmentation is positively correlated with the percentage of immotile sperm but negatively with semen volume, normal morphology; and (iv) in sperm chromatin evaluations, only the percentage of chromatin protamination was related to male age.
      PubDate: 2017-11-06T23:16:41.95855-05:0
      DOI: 10.1111/and.12918
       
  • NAD(P)H-quinone oxidoreductase 1 silencing aggravates hormone-induced
           prostatic hyperplasia in mice
    • Authors: H.-T. Kim; Y.-J. Kim, S.-R. Park, S.-Y. Ryu, J.-Y. Jung
      Abstract: NAD(P)H-quinone oxidoreductase 1 (NQO1) is a highly inducible flavoprotein known to involve in various cellular defence mechanisms. In this study, we explored whether NQO1 deletion affects hormone-induced prostatic hyperplasia. Testosterone propionate (3 mg/kg, IP) was injected into wild-type (WT) and NOQ1 knockout C57BL/6 mice (NQO1−/−) for 14 consecutive days, and the samples were collected for biological and histochemical studies. The testosterone-treated NQO1−/− showed about 140% higher prostate weight than the testosterone-treated WT, with enhanced connective tissue and hyperplastic glands formations. However, increased dihydrotestosterone level after testosterone treatment was not significantly different between the WT and NQO1−/−. In contrast, the enhanced nuclear expression of proliferating cell nuclear antigen in NQO1−/− prostate confirmed aggravated prostatic hyperplasia in NQO1−/−. Moreover, the expression of heat shock protein (HSP) 90-α was markedly increased in the NQO1−/−, and this was supported by increased testosterone-induced nuclear androgen receptor expression in NQO1-silenced LNCaP cells. Testosterone-induced prostate-specific antigen expression was not reversed in NOQ1-silenced cells after finasteride treatment. Although the exact role of NQO1 in prostatic hyperplasia remains unclear, the hyperplasia exacerbation due to NQO1 deletion might be independent of type 2 5α-reductase and might be related to enhanced androgen receptor affinity due to enhanced HSP90-α expression.
      PubDate: 2017-11-06T22:51:55.283517-05:
      DOI: 10.1111/and.12906
       
  • Effect of nordihydroguaiaretic acid on spermatogenesis and fertility in
           rats
    • Authors: M. A. Abbas; D. Badran, A. Disi
      Abstract: Nordihydroguaiaretic acid (NDGA) is a naturally occurring lignan with potent antioxidant activity. Currently, it is in clinical trials as anticancer agent. As there is no earlier report on the effect of NDGA on spermatogenesis and fertility, this study was designed to investigate this aspect. Administration of NDGA to rats for 60 days produced degenerative changes in testis but had no effect on sperm DNA integrity test and androgen receptor expression. Ultrastructural studies revealed loss of integrity of cells in seminiferous tubules, vacuolation and presence of apoptotic bodies. Derangement of the outer dense fibres was noted in some sperm flagella. Acrosome formation appears to be normal. About 13.7% of epididymal spermatozoa had deformations like short tail or rounded head. This may explain the lower fertility index in NDGA-treated group. No external deformations in newborns were noted. In conclusion, NDGA may have adverse effects on spermatogenesis.
      PubDate: 2017-11-06T21:31:14.514462-05:
      DOI: 10.1111/and.12916
       
  • An insight into the possible mechanisms of antispermatogenic action of
           Dalbergia sissoo in male mice
    • Authors: H. P. Verma; S. K. Singh
      Abstract: This study investigated the possible mechanisms of antispermatogenic action of Dalbergia sissoo in Parkes male mice. Mice were orally administered aqueous leaf extract of Dalbergia sissoo (50 and 100 mg kg−1 body weight day−1 for 35 days) and various testicular indices such 3β- and 17β-hydroxysteroid dehydrogenase (HSD) activities, Western blot analyses of StAR, cytochrome P450scc and caspase-3, germ cell apoptosis by TUNEL, and lipid peroxidation and antioxidant enzymes activities were assessed. A significant increase in lipid peroxidation level and a marked decrease in activities of superoxide dismutase, catalase, 3β- and 17β-HSD were noted in the testis of Dalbergia-treated mice compared to controls. The treatment also had adverse effect on expression levels of StAR and cytochrome P450scc in the testis. There was an increase in the number of TUNEL-positive germ cells and in expression level of caspase-3 in testes of Dalbergia-treated mice, especially in those treated with 100 mg dose compared to controls. By 56 days of withdrawal therapy, the alterations induced in the above parameters recovered to control levels. Our results thus suggest that Dalbergia treatment interferes with steroidogenesis and produces oxidative stress in the testis, which may induce germ cell apoptosis leading to suppression of spermatogenesis.
      PubDate: 2017-10-26T04:47:43.695554-05:
      DOI: 10.1111/and.12917
       
  • Aberrations in sperm DNA methylation patterns of males suffering from
           reduced fecundity
    • Authors: M. Laqqan; M. E. Hammadeh
      Abstract: The purpose of this study was to evaluate the aberrations in sperm DNA methylation patterns of males suffering from reduced fecundity. A total of 108 males (65 males suffering from reduced fecundity as cases and 43 proven fertile males as a control) were included in the study. Thirty samples were subjected to 450K arrays as a screening phase, and then, three CpG sites located in the following genes: TYRO3, CGβ and FAM189A1 were selected to validate on 78 samples using deep bisulphite sequencing. A significant difference in the methylation level was found between cases and controls at all CpGs in TYRO3 gene-related amplicon (CpG1, p ≤ .003, CpG2, p ≤ .0001, CpG3, p ≤ .003 and CpG4, p ≤ .030) and CpG1 in CGβ gene-related amplicon (p ≤ .0001). Besides, a significant difference was found at two CpGs (CpG1, p ≤ .004 and CpG2, p ≤ .002) tested in the FAM189A1 gene-related amplicon. A significant correlation was found between the methylation level at CpG1 in the FAM189A1 gene and the different types of sperm motility. In conclusion, an alteration in the methylation levels of sperm DNA from males with reduced fecundity was showed. In addition, a relationship between variations in the methylation level of these CpGs and sperm motility has been observed.
      PubDate: 2017-10-26T04:25:31.931594-05:
      DOI: 10.1111/and.12913
       
  • Endocan is markedly overexpressed in severe erectile dysfunction
    • Authors: M. Akarsu; H. A. Atalay, L. Canat, M. Ozcan, Y. Arman, S. Aydın, E. Cil, O. Kutlu, T. Tükek
      Abstract: This study aimed to measure the serum endocan level of patients with erectile dysfunction (ED) and to investigate the possible association between this and vasculogenic severe ED. We performed a prospective analysis of 86 consecutive patients affected by ED. Patients were divided into severe ED (IIEF-5 score  7). A strong negative correlation was found between serum endocan levels and peak systolic velocity (p 
      PubDate: 2017-10-23T01:17:56.102852-05:
      DOI: 10.1111/and.12912
       
  • Insight into curcumin nanomicelle-induced derangements in male
           reproduction potential: An experimental study
    • Authors: S. Moshari; V. Nejati, G. Najafi, M. Razi
      Abstract: This study was conducted to investigate the possible effects of nanomicelle curcumin (NMC) on spermatogenesis, sperm parameters and in vitro fertilisation potential. For this purpose, 24 mature male Wistar rats were divided into control and test groups. The animals in test groups received 7.5, 15 and 30 mg kg b.w−1 of NMC (NO = 6 rats in each group). Following 48 days, the DNA integrity of testicular tissues, tubular differentiation (TDI) and spermiogenesis (SPI) indices, sperm parameters and DNA integrity were analysed. Finally, the in vitro fertilisation potential was investigated via evaluating pre-implantation embryo generation. The NMC diminished the TDI and SPI ratios. The animals in NMC-received groups exhibited a remarkable (p 
      PubDate: 2017-10-23T01:17:44.714143-05:
      DOI: 10.1111/and.12842
       
  • Transplantation of adipose tissue-derived stem cell-derived exosomes
           ameliorates erectile function in diabetic rats
    • Authors: L. L. Zhu; X. Huang, W. Yu, H. Chen, Y. Chen, Y. T. Dai
      Abstract: Mesenchymal stem cells (MSCs) have been considered as an attractive tool for the therapy of diseases. Accumulating evidence indicates that the healing effects of MSCs are mainly related to paracrine action rather than transdifferentiation. Exosomes excreted from MSCs have emerged as physiologically relevant and powerful components of the MSC secretome. However, whether MSC-derived exosomes can improve erectile function of streptozotocin-induced diabetic rats and its mechanism remains unknown. Our previous work showed that adipose tissue-derived stem cells (ADSCs) transplantation could increase endothelial and smooth muscle contents and improve erectile function of diabetic rats. In this study, ADSC-derived exosomes (ADSC-Exo) exhibited in vitro proangiogenic properties, induced the proliferation of endothelial cells and restored erectile function in vivo, as well as decreased fibrosis of corpus cavernosum. In further experiments, we found that ADSC-Exo contained some proangiogenic (miR-126, miR-130a and miR-132) microRNAs and an antifibrotic microRNA family (miR-let7b and miR-let7c). Thus, it is reasonable to postulate that ADSC-Exo transports key functional miRNAs to target cells in a specific manner to improve functional recovery or to activate endogenous repair mechanisms. This proof-of-concept study provides a novel approach for the treatment of diabetic erectile dysfunction.
      PubDate: 2017-10-23T01:16:42.61631-05:0
      DOI: 10.1111/and.12871
       
  • Impact of varicocelectomy on the proteome profile of testicular tissues of
           rats with varicocele
    • Authors: F. Xu; Q. Q. Gao, L. L. Zhu, H. S. Jiang, H. Chen, Z. P. Xu, Y. Chen, Y. T. Dai
      Abstract: Varicocele (VC) is a common cause of male infertility, but the molecular mechanisms involved in its pathogenesis are unknown. We investigated the impact of varicocelectomy (VCT) on proteome profiles in testicular tissues of rats with VC, and analysed associated target genes and signalling pathways. Sixty male rats with VC were divided into two groups: control (n = 30), and VCT (n = 30). Tissues were collected 4 weeks after sham or VCT surgery. Matrix-assisted laser desorption/ionisation time-of-flight/time-of-flight mass spectrometry (MALDI-TOF/TOF MS) was used to analyse the comparative proteome profiles. Kyoto Encyclopaedia of Genes and Genomes (KEGG) Orthology-Based Annotation System was used for bioinformatic analysis. Fifteen proteins were differentially expressed between control and VCT groups. These differentially expressed proteins are associated with several specific cellular processes associated with the pathogenesis of testicular growth arrest associated with VC. Furthermore, the evaluation by transmission electron micrograph showed that VCT could decrease apoptosis of spermatogenic cells in rats. Understanding such molecular pathways might provide physicians with a better insight into VC and with potential targets for treatment.
      PubDate: 2017-10-23T00:55:33.216302-05:
      DOI: 10.1111/and.12873
       
  • Acetylation and methylation of sperm histone 3 lysine 27 (H3K27ac and
           H3K27me3) are associated with bull fertility
    • Authors: N. A. Kutchy; E. S. B. Menezes, A. Chiappetta, W. Tan, R. W. Wills, A. Kaya, E. Topper, A. A. Moura, A. D. Perkins, E. Memili
      Abstract: SummaryEpigenetic modifications in histones are crucial for proper sperm physiology, egg activation and reproductive development of males. The objectives of this study were to determine the conservation and interactomes of histone three (H3) and ascertain the expression dynamics of acetylated and methylated H3 lysine 27 (H3K27ac and H3K27me3) in spermatozoa from Holstein bulls with different fertility. Methods in immunocytochemistry and flow cytometry were used to evaluate the expression dynamics of H3K27ac and H3K27me3 in spermatozoa from 10 bulls with different in vivo fertility. Computational biology methods including Clustal Omega and Cytoscape were performed to determine the evolutionary conservation and interactome of H3. The post-translational modifications (PTM) of H3 (H3K27ac and H3K27me3) had different spatiotemporal dynamics in the sperm head. Intensities of methylation were higher than those of acetylation and inversely correlated between the two fertility groups (p = .0032). The interacting proteins of H3 are involved in critical subcellular processes such as regulation of methylation, nucleosome assembly, regulation of DNA replication and chromatin assembly. These results are significant because they help advance fundamental science and biotechnology of mammalian reproduction.
      PubDate: 2017-10-23T00:45:35.610038-05:
      DOI: 10.1111/and.12915
       
  • Determination of seminal oxidation–reduction potential (ORP) as an easy
           and cost-effective clinical marker of male infertility
    • Authors: A. Agarwal; R. Henkel, R. Sharma, N. N. Tadros, E. Sabanegh
      Abstract: Oxidative stress (OS) is an important contributing factor to male infertility. While previous methods to measure seminal OS are time-consuming and limited to the use of freshly produced semen, oxidation reduction potential (ORP) is easier and quicker to perform and can also be used in frozen semen. Therefore, this study evaluated the clinical utility of ORP as a potential marker of male infertility. ORP was measured in semen samples from 293 patients and 15 fertile controls and categorised according to WHO criteria as normozoospermic, oligozoospermic, asthenozoospermic, teratozoospermic and oligoasthenoteratozoospermic. Receiver operating characteristic (ROC) curves were generated to differentiate these categories. Semen parameters were significantly different when subjects were grouped as control and patients or between the patient and normozoospermic group for concentration and morphology. ORP levels were significantly different between the control and normozoospermic group. When subjects were grouped based on concentration, motility, morphology or a combination of these, the area under the ROC curve, sensitivity, specificity, positive predictive value and cut-off values were significantly different. These differences were significant when combined with ORP and grouped with any two sperm abnormalities. In conclusion, ORP is a quick, easy, cost-effective and reliable marker of semen quality as well as oxidative stress for use in a clinical setting.
      PubDate: 2017-10-23T00:25:42.598644-05:
      DOI: 10.1111/and.12914
       
  • Cyclophosphamide-induced male subfertility in mice: An assessment of the
           potential benefits of Maca supplement
    • Authors: A. Y. Onaolapo; B. P. Oladipo, O. J. Onaolapo
      Abstract: Effects of Lepidium meyenii (Maca) on cyclophosphamide (CYP)-induced gonadal toxicity in male mice were investigated. Mice were assigned to six treatment groups: Vehicle control, CYP control, CYP plus oral Maca (500 or 1,000 mg/kg), and oral Maca (500 or 1,000 mg/kg). CYP was administered via the intraperitoneal route (days 1–2), while vehicle or Maca were administered daily for 28 days. On day 28, half of the animals in each group were either sacrificed or paired with age-matched females for fertility assessment. Plasma testosterone assay, sperm analysis and assessment of tissue antioxidant/morphological status were also carried out. CYP administration was associated with oxidative stress, subfertility and morphometric/morphological indices of gonadal injury, while administration of Maca mitigated CYP-induced gonadal toxicity and subfertility. This study shows that Maca is beneficial in the mitigation of CYP-induced male gonadal insufficiency and/or testicular morphological changes; however, further studies will be needed to ascertain its usability for this purpose in humans.
      PubDate: 2017-10-18T21:41:10.528035-05:
      DOI: 10.1111/and.12911
       
  • Effects of testosterone enanthate and resistance training on myocardium in
           Wistar rats; clinical and anatomical pathology
    • Authors: S. Karbasi; M. Zaeemi, M. Mohri, A. Rashidlamir, Z. Moosavi
      Abstract: This study was performed to determine the effects of 8 weeks testosterone enanthate (TE) injection and resistance training (RT) on cardiac muscle in male Wistar rats. A total of 28 male adult Wistar rats were randomly divided into 4 groups; control + placebo, RT + placebo, TE and TE + RT. Testosterone enanthate (20 mg/kg BW, IM) and placebo (olive oil; 0.2 ml, IM) were injected twice a week for 2 months. The RT consisted of climbing (5 reps/3 sets) a ladder carrying a load suspended from the tail. The serum activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH) and creatine kinase MB (CK-MB) and serum level of creatinine, urea and cardiac troponin I (CTnI) were evaluated. After sacrifice, samples from myocardial muscle were collected for histopathology evaluation. The serum concentration of CTnI and CK-MB activity significantly increased in group RT compared with control (p 
      PubDate: 2017-10-18T21:20:44.266666-05:
      DOI: 10.1111/and.12908
       
  • Impact of melatonin supplementation in the rat spermatogenesis subjected
           to forced swimming exercise
    • Authors: A. Moayeri; T. Mokhtari, A. Hedayatpour, H.-A. Abbaszadeh, S. Mohammadpour, H. Ramezanikhah, S. Shokri
      Abstract: Oxygen consumption increases many times during exercise, which can increase reactive oxygen species. It negatively affects fertility in male athletes. Melatonin is exerting a regulatory role at different levels of the hypothalamic–pituitary–gonadal axis. However, there is no evidence that the protective effects of melatonin persist after long duration exercise on the spermatogenesis. Therefore, this study was conducted to examine the impacts of melatonin on the testis following the administration of swimming exercise. Rats were separated into five different groups, including Control, sham M: received the solvent of melatonin, M: received melatonin, S: the exercise protocol, MS: received melatonin and the exercise protocol. After 8 weeks, animals were scarified and antioxidant enzymes levels of testes, spermatogenic cells apoptosis and sperm quality were measured. Swimming decreased all parameters of spermatozoa. Nevertheless, melatonin could significantly improve the progressive motility of spermatozoa in MS rats. Swimming caused an increased apoptosis of S group and decreased all antioxidant enzymes. Melatonin could drastically reduce apoptosis and increased these enzymes. Therefore, melatonin seems to induce the production of antioxidant enzymes of testicular tissues and diminish the extent of apoptotic changes caused by forced exercise on the testis, which can, in turn, ameliorate the sperm parameters.
      PubDate: 2017-10-18T05:55:46.033537-05:
      DOI: 10.1111/and.12907
       
  • Association of androgen receptor gene CAG and GGN repeat polymorphism with
           cryptorchidism: A meta-analysis
    • Authors: Qi Wang; Xing Ge, Heng-Xue Wang, Qiao-Mei Shi, Zhen Ding, Li-Chun Xu
      Abstract: Researches on association between variations in the androgen receptor (AR) gene repeat polymorphisms and cryptorchidism (CO) had conflicting results. The aim of this meta-analysis was to analyse the potential effects of AR CAG and/or GGN repeat polymorphism on CO. Studies were independently appraised by two investigators on PubMed, Web of Science, EBSCO databases and Foreign Medical Retrieval System. Case–control studies with measurement of CAG and/or GGN repeat length were included. Weighted mean difference (WMD) and 95% confidence intervals (CIs) for the CAG or GGN repeat polymorphism and CO were calculated. Five reports were included in this analysis. Overall, no difference was identified between patients and fertile men in CAG repeat length. However, when the CO was divided into unilateral and bilateral, longer CAG repeat region was significantly associated with CO in bilateral group (WMD = 0.74; 95% CI, 0.01–1.47; p 
      PubDate: 2017-10-18T05:25:30.190681-05:
      DOI: 10.1111/and.12909
       
  • Association between promoter methylation of MLH1 and MSH2 and reactive
           oxygen species in oligozoospermic men—A pilot study
    • Authors: S. Gunes; A. Agarwal, R. Henkel, A. M. Mahmutoglu, R. Sharma, S. C. Esteves, A. Aljowair, D. Emirzeoglu, A. Alkhani, L. Pelegrini, A. Joumah, E. Sabanegh
      Abstract: MLH1 and MSH2 are important genes for DNA mismatch repair and crossing over during meiosis and are implicated in male infertility. Therefore, the methylation patterns of the DNA mismatch repair genes MLH1 and MSH2 in oligozoospermic males were investigated. Ten oligozoospermic patients and 29 normozoospermic donors were analysed. Methylation profiles of the MLH1 and MSH2 promotors were analysed. In addition, sperm motility and seminal reactive oxygen species (ROS) were recorded. Receiver operating characteristic (ROC) analysis was conducted to determine the accuracy of the DNA methylation status of MLH1 and MSH2 to distinguish between oligozoospermic and normozoospermic men. In oligozoospermic men, MLH1 was significantly (p = .0013) more methylated compared to normozoospermic men. Additionally, there was a significant positive association (r = .384; p = .0159) between seminal ROS levels and MLH1 methylation. Contrary, no association between MSH2 methylation and oligozoospermia was found. ROC curve analysis for methylation status of MLH1 was significant (p = .0275) with an area under the curve of 61.1%, a sensitivity of 22.2% and a specificity of 100.0%. This pilot study indicates oligozoospermic patients have more methylation of MLH1 than normozoospermic patients. Whether hypermethylation of the MLH1 promoter plays a role in repairing relevant mismatches of sperm DNA strands in idiopathic oligozoospermia warrants further investigation.
      PubDate: 2017-10-06T00:00:45.983661-05:
      DOI: 10.1111/and.12903
       
  • Infrared thermography as a noninvasive method to assess scrotal insulation
           on sperm production in beef bulls
    • Authors: S. R. O. Menegassi; G. R. Pereira, E. A. Dias, M. K. Rocha, H. R. Carvalho, C. Koetz, E. R. Oberst, J. O. J. Barcellos
      Abstract: This study evaluated the thermoregulation and spermatogenic changes by scrotal temperature gradient using infrared thermography in testicular compromised bulls. Bulls were insulated (n = 6) for 72 hr and control animals (n = 3) remained without insulation during all the experimental period. Seminal evaluation was performed prior, at insult removal and once per week for 13 consecutive weeks. Mean temperature gradient in insulated animals was lower at the time of insulation removal compared to the week prior and after the insult (p 
      PubDate: 2017-10-03T06:00:44.814413-05:
      DOI: 10.1111/and.12904
       
  • Benign Prostatic Hyperplasia: Long-term follow-up of prostate volume
           reduction after sclerotherapy of the internal spermatic veins
    • Authors: Y. Gat; M. Goren
      Abstract: The purpose was to examine the results of bilateral percutaneous sclerotherapy of the internal spermatic veins on prostate volume and prostatic symptoms. We previously showed that destruction of one-way valves in the internal spermatic veins (varicocele) elevates hydrostatic pressure in the vertical testicular venous drainage system in the erect human. This diverts free testosterone (FT) flow at high concentrations directly from the testes into the prostate. High intraprostatic FT prolongs prostate cell life and increases cell proliferation rate—synergistic effects resulting in increased cell population (BPH). Treatment by interventional radiology (or microsurgery) techniques eliminates this diversion of FT flow to the prostate and reverses these pathologic processes. A total of 206 BPH patients with varicocele underwent bilateral sclerotherapy of the ISV. Of these, 81.5% exhibited significantly reduced prostate volume and improvement in prostatic symptoms (measured by IPSS scores) during follow-up period of 12 to over 24 months. 8% went on to require surgery despite mild post-treatment improvement (TURP). The use of prostate medications along with the treatment may have a combined positive effect. Very large prostate volume and large residual volume may limit degree of improvement. It is concluded that effective treatment of varicocele restores normal supply of testosterone to the prostate solely via its arterial supply, resulting in significant decrease of prostate volume and prostatic symptoms. The procedure is safe with only minor transient side effects.
      PubDate: 2017-09-25T23:30:40.947745-05:
      DOI: 10.1111/and.12870
       
  • Differentiation of mesenchymal stem cells to germ-like cells under
           induction of Sertoli cell-conditioned medium and retinoic acid
    • Authors: R. Ghaem Maghami; T. Mirzapour, A. Bayrami
      Abstract: The aim of this research was to find a way to differentiate germ cells from umbilical cord Wharton's jelly mesenchymal stem cells (MSCs) to support in vitro spermatogenesis. A small piece of Wharton's jelly was cultured in high-glucose Dulbecco's modified Eagle's medium in present of 10% foetal calf serum. After the fourth passage, the cells were isolated and cultured in Sertoli cell-conditioned medium under induction of two different doses of retinoic acid (10−5, 10−6 m). The differentiation of MSC to germ-like cells was evaluated by expression of Oct4, Nanog, Plzf, Stra8 and Prm1 genes during different days of culture through qPCR. The results showed that there were downregulation of Oct4 and Nanog and upregulation of pre-meiotic germ cell marker (stra8) and haploid cell marker (Prm1) when MSCs are differentiated over time. The expression of Bax gene (an apoptotic marker) was significantly observed in high dosage of retinoic acid (RA). As a result, RA has positive effects on proliferation and differentiation of MSCs, but its effects are related to dosage. The success of this method can introduce umbilical cord MSC as a source of germ cells for treatment of infertility in future.
      PubDate: 2017-09-25T00:05:34.746595-05:
      DOI: 10.1111/and.12887
       
  • Association between obesity and sperm quality
    • Authors: G. A. Ramaraju; S. Teppala, K. Prathigudupu, M. Kalagara, S. Thota, M. Kota, R. Cheemakurthi
      Abstract: There is awareness of likelihood of abnormal spermatozoa in obese men; however, results from previous studies are inconclusive. Advances in computer-aided sperm analysis (CASA) enable precise evaluation of sperm quality and include assessment of several parameters. We studied a retrospective cohort of 1285 men with CASA data from our infertility clinic during 2016. Obesity (BMI ≥30) was associated with lower (mean ± SE) volume (−0.28 ± 0.12, p-value = .04), sperm count (48.36 ± 16.51, p-value = .002), concentration (−15.83 ± 5.40, p-value = .01), progressive motility (−4.45 ± 1.92, p-value = .001), total motility (−5.50 ± 2.12, p-value = .002), average curve velocity (μm/s) (−2.09 ± 0.85, p-value = .001), average path velocity (μm/s) (−1.59 ± 0.75, p-value = .006), and higher per cent head defects (0.92 ± 0.81, p-value = .02), thin heads (1.12 ± 0.39, p-value = .007) and pyriform heads (1.36 ± 0.65, p-value = .02). Obese men were also more likely to have (odds ratio, 95% CI) oligospermia (1.67, 1.15–2.41, p-value = .007) and asthenospermia (1.82, 1.20–2.77, p-value = .005). This is the first report of abnormal sperm parameters in obese men based on CASA. Clinicians may need to factor in paternal obesity prior to assisted reproduction.
      PubDate: 2017-09-19T23:30:02.833976-05:
      DOI: 10.1111/and.12888
       
  • Do penile haemodynamics change in the presence of hydrogen sulphide (H2S)
           donor in metabolic syndrome-induced erectile dysfunction'
    • Authors: E. Dayar; E. Kara, G. Yetik-Anacak, N. Hocaoglu, O. Bozkurt, S. Gidener, N. Durmus
      Abstract: Erectile dysfunction (ED) is defined in relation to the metabolic syndrome (metS). Hydrogen sulphide (H2S), a gasotransmitter, has been revealed to get involved in hypertension, insulin secretion and regulation of vascular tone especially in erectile physiology. This study aimed to investigate the effect of H2S on metS-induced ED. Animals were divided into two groups as control and metS, which were fed with standard diet or 60% high-fructose diet for 10 weeks respectively. The metS model was evaluated with biochemical analyses, waist circumference/tibia length ratio and HOMA index. Penile hemodynamic parameters were evaluated by the measurement of intracavernous pressure/mean arterial pressure ratio during cavernous nerve stimulation in the presence and absence of intracavernous injection of NaHS (100 μg/50 μl) and its control 0.9%NaCl (50 μl) in both groups. H2S levels were measured in penile tissues by methylene blue assay. H2S levels were significantly decreased in the penile tissues of the metS group. Decreased intracavernous pressure/mean arterial pressure ratio improved after intracavernous administration of NaHS in the metS group. These results suggest the significant role of H2S in the metS-induced erectile dysfunction that could be a new therapeutic target.
      PubDate: 2017-09-13T04:40:59.523296-05:
      DOI: 10.1111/and.12885
       
  • Effects of ivermectin and its combination with alpha lipoic acid on
           expression of IGFBP-3 and HSPA1 genes and male rat fertility
    • Authors: Z. K. EL-Maddawy; W. S. H. Abd El Naby
      Abstract: This study was conducted to evaluate the effects of ivermectin (IVM) with therapeutic dose (injected with 0.56 mg/kg b.wt.) either alone or combined with alpha lipoic acid (ALA) (50 mg/kg b.wt daily) on expression of testicular insulin-like growth factor binding protein-3 (IGFBP-3) and heat-shock protein A1 (HSPA1)) genes in the testes, as well as on male rat fertility parameters. Results revealed that expression levels of IGFBP-3 and HSPA1 were significantly increased in testis of the IVM-treated group relative to the control group. Furthermore, injection of ivermectin showed a significant decrease in serum testosterone level, sperm count, motility %, live sperm% and index weight of reproductive organs, and a significant increase in sperm abnormalities. Moreover, IVM induced oxidative stress and pathological alterations in the testes. Meanwhile, the administration of ALA with IVM prevented testicular damage and improved all previous parameters. We concluded that ivermectin has undesirable effects on male fertility and altered expression of IGFBP-3 and HSPA1 genes in the testes, while the administration of alpha lipoic acid can ameliorate the adverse effects of ivermectin.
      PubDate: 2017-09-07T00:55:42.770174-05:
      DOI: 10.1111/and.12891
       
  • Effect of ghrelin on total antioxidant capacity, lipid peroxidation, sperm
           parameters and fertility in mice against oxidative damage caused by
           cyclophosphamide
    • Authors: R. Salimnejad; J. Soleimani Rad, D. Mohammad Nejad, L. Roshangar
      Abstract: Cyclophosphamide is a drug used for chemotherapy and as an immune-suppressive in the organ transplantation. Despite its many clinical implications in the treatment of cancers, this drug has toxic effects on the reproductive system. This study aimed to evaluate the effect of ghrelin against the damages caused by cyclophosphamide. In this experimental study, 40 male mice were randomly divided into four groups: (i) control; (ii) cyclophosphamide; (iii) cyclophosphamide + ghrelin; and (iv) ghrelin. Cyclophosphamide (100 mg/kg body weight), once a week, and ghrelin (80 μg/kg body weight), daily, were administered intraperitoneally for 5 weeks. After 5 weeks, the epididymides were removed and the lipid peroxidation, total antioxidant capacity and sperm parameters were examined. The fertility rate was evaluated by performance in vitro fertilisation. In the mice exposed to cyclophosphamide, the number of spermatozoa and viability, as well as total antioxidant capacity, decreased significantly (p 
      PubDate: 2017-09-04T23:01:25.577982-05:
      DOI: 10.1111/and.12883
       
  • Association between body mass index and sperm quality and sperm DNA
           integrity. A large population study
    • Authors: J. B. A. Oliveira; C. G. Petersen, A. L. Mauri, L. D. Vagnini, A. Renzi, B. Petersen, M. Mattila, F. Dieamant, R. L. R. Baruffi, J. G. Franco
      Abstract: This study aimed to analyse whether the functional quality of spermatozoa is associated with body mass index (BMI). Semen samples were obtained from 1824 men undergoing fertility evaluation/treatment. Semen analysis was performed using World Health Organization (WHO) criteria, and morphology was evaluated with the motile sperm organelle morphology examination (MSOME). The percentages of sperm DNA fragmentation (using TdT (terminal deoxynucleotidyl transferase)-mediated dUTP nick-end labelling (TUNEL) assays), sperm chromatin packaging/underprotamination (using chromomycin A3/CMA3), mitochondrial damage (using MitoTracker Green) and apoptosis (using annexin V) were also assessed. At least 200 spermatozoa were examined in each evaluation. The following BMI values were used as cut-off points: ≤24.9 kg/m2, 25–29.9 kg/m2 (overweight) and ≥30 kg/m2 (obese). High BMI negatively affects sperm concentration, vitality, motility and morphology (p  .05). However, increased BMI is associated with increased mitochondrial damage in spermatozoa (p 
      PubDate: 2017-08-30T03:25:25.268017-05:
      DOI: 10.1111/and.12889
       
  • Health-related quality of life's dependence on socio-economic status and
           demographic characteristics among men with benign prostatic hyperplasia
    • Authors: K. Kosilov; S. Loparev, I. Kuzina, L. Kosilova, M. Ivanovskaya, A. Prokofyeva
      Abstract: This study investigated the effect of socio-economic status (SES) on health-related quality of life (HRQoL) among persons with benign prostatic hyperplasia (BPH). The data were collected by way of surveying persons with BPH aged from 35 to 85 (937) and selected via random sample. The diagnosis was confirmed with the use of I-PSS questionnaires (8–19 points), OABq-AT (≥8 points) and daily urinations. A study on HRQoL was conducted using the SF-36 questionnaire. SES was evaluated using the patients’ ambulance cards (F112U) and tax inspection documents with their written permission. Verification of the viability of the differences in the HRQoL level of patients with different SES was conducted in each age cohort using ANOVA. The goal of the multifactor regressive analysis using least weighted squares was identified as featuring the strongest relationships between SES and HRQoL. In comparing the average regression squares with average error squares, selection of the entry variables was conducted. Among persons with a BPH, the strongest relationship was discovered between profession, level of education, place of residence and HRQoL. A weaker relationship was identified between income and HRQoL, and there was no relationship between marital status and HRQoL. HRQoL among persons with a different level of SES figures aged 65+ proved homogeneous. We can expect HRQoL improvement among persons with BPH while increasing informedness on the possibilities for treating and improving help for workers of industrial and rural production residing in rural areas.
      PubDate: 2017-08-30T03:10:30.101601-05:
      DOI: 10.1111/and.12892
       
  • Relationship between morphological abnormalities in commercial bull frozen
           semen doses and conception rate
    • Authors: M. S. Ghirardosi; M. L. Fischman, A. E. Jorge, D. Chan, H. Cisale
      Abstract: Commercial doses of frozen bull semen for artificial insemination may have a certain percentage of morphological defects, despite being subject to prior selection. The aims of this study were to determine the prevalence of morphological abnormalities in commercial doses (n = 55, r = 2) of dairy and beef bulls, from AI Centers and to determine the possible existence of differences between them, regarding the percentage of abnormal spermatozoa. At least 200 spermatozoa per sample were evaluated using Bengal Rose stain (3% m/v) and light microscopy (×1000 magnification). The mean percentage of abnormal sperm samples from dairy breeds was 7.19% ± 4.91% and from beef breeds was 15.83% ± 9.28%. Significant differences between biotypes were found in the proportion of abnormal spermatozoa, abnormal heads and abnormal midpieces; it could be due to different selection pressure. It was observed that the percentage of abnormal spermatozoa was not a good fertility level predictor for the commercial samples of frozen bovine semen used in this study. In both biotypes, the midpiece abnormalities were the most frequent, mainly its distal flexion (compensable defect). This could be as a result of the effects of freezing and thawing on spermatozoa.
      PubDate: 2017-08-29T22:45:33.701976-05:
      DOI: 10.1111/and.12884
       
  • Activation of TLR signalling regulates microwave radiation-mediated
           impairment of spermatogenesis in rat testis
    • Authors: H. Wu; D. Wang, Y. Meng, H. Ning, X. Liu, Y. Xie, L. Cui, S. Wang, X. Xu, R. Peng
      Abstract: Microwave radiation could increase the expression of pro-inflammatory cytokines in rat Sertoli cells, which may impair spermatogenesis. However, the mechanisms that microwave radiation induces the cytokine expression in Sertoli cells remain to be clarified. The activation of TLRs by their ligands can trigger a common signalling pathway to upregulate inflammatory cytokines such as IL-1, IL-6, IL-12 and TNF-α. Microwave radiation can increase the expression of TLRs in lymphocytes. The purpose of this study was to determine the effect of microwave radiation on the TLRs in rat testis. We focus on the effect of TLR2-5 (which is expressed relatively highly) by microwave radiation. The results showed that the expression of TLR2-5 and the pro-inflammatory cytokines (IL-1β, IL-6 and TNF-α) was increased both in mRNA and in protein. Furthermore, p-p38, p-ERK1/2, p-JNK and p-NF-κB p65, the key factors of TLR signalling, were also elevated by microwave exposure. And the NF-κB can be induced more dominantly. These results suggest that TLRs signalling can be activated by microwave radiation in testis, which may provide the molecular basis for the in-depth study.
      PubDate: 2017-08-06T21:55:37.884507-05:
      DOI: 10.1111/and.12828
       
  • Differential expression of microRNAs in luteinising hormone-treated mouse
           TM3 Leydig cells
    • Authors: C. Li; S. Gao, S. Chen, L. Chen, Y. Zhao, Y. Jiang, X. Zheng, X. Zhou
      Abstract: Testosterone is primarily produced by Leydig cells of the mammalian male gonads. The cellular functions of Leydig cells are regulated by the hypothalamus–pituitary–gonad axis, whereas the microRNA (miRNA) changes of LH-treated Leydig cells are unknown. Mouse TM3 Leydig cells were treated with LH, and deep sequencing showed that 29 miRNAs were significantly different between two groups (fold change of>1.5 or
      PubDate: 2017-08-01T01:25:46.936633-05:
      DOI: 10.1111/and.12824
       
  • Effect of paracetamol on semen quality
    • Authors: S. A. Banihani
      Abstract: Several published studies, both direct and indirect, have connected paracetamol, also named acetaminophen, a commonly used over-the-counter analgesic and antipyretic medication, with semen quality and male infertility, although as yet this connection is unclear. This review addresses the effect of paracetamol on semen quality and hence on male factor infertility. We searched the MEDLINE database from January 1980 through January 2017 for English-language articles using the key words “paracetamol” and “acetaminophen” versus “sperm.” References from articles were used only if relevant. In summary, paracetamol, when used at high doses, appears to change semen quality, particularly sperm morphology, and hence its fertilising ability. Such effect of paracetamol on semen quality may occur by suppressing testosterone synthesis, inducing oxidative stress, provoking apoptosis of spermatocytes, reducing nitric oxide production and inhibiting prostaglandin synthesis. Further research, particularly clinical research, will be very important to confirm these effects.
      PubDate: 2017-07-28T03:30:34.301788-05:
      DOI: 10.1111/and.12874
       
  • Boar sperm quality after supplementation of diets with omega-3
           polyunsaturated fatty acids extracted from microalgae
    • Authors: Y. T. Andriola; F. Moreira, E. Anastácio, F. A. Camelo, A. C. Silva, A. S. Varela, S. M. M. Gheller, K. L. Goularte, C. D. Corcini, T. Lucia
      Abstract: This study evaluated effects of diet supplementation with omega-3 polyunsaturated fatty acids (PUFA) from microalgae on boar sperm quality. Two groups of boars (n = 3 each) were fed during 75 days either a commercial diet (control), or the same diet supplemented with omega-3 PUFA from the heterotrophic microalgae Schizochytrium sp. (120 g/kg). Sixteen ejaculates were collected per boar. Some sperm kinetics parameters were inferior for supplemented than for control boars (p 
      PubDate: 2017-07-21T01:55:35.151741-05:
      DOI: 10.1111/and.12825
       
  • Sperm cryopreservation and assisted reproductive technology outcome in
           patients with spinal cord injury
    • Authors: A. Reignier; J. Lammers, C. Splingart, D. Redhead, J. J. Labat, S. Mirallié, P. Barrière, T. Fréour
      Abstract: This study aimed to describe spinal cord injured patients’ semen characteristics before and after cryopreservation, and assisted reproductive technology cycles outcome compared to the infertile population. Data about sperm analysis and assisted reproductive technology (ART) cycles outcomes for 78 men with spinal cord injury referred for sperm cryopreservation between 1998 and 2013 were retrospectively analysed and compared with a reference group consisting of every Intra Cytoplasmic Sperm Injection (ICSI) cycle performed in our in vitro fertilization unit over the 2009–2014 period. Semen was collected by penile vibratory stimulation (PVS), electroejaculation or via testis biopsies. Fresh and frozen semen parameters and ART outcomes with frozen-thawed sperm were measured. Patients were divided into three groups according to the sperm retrieval methods: 37 electroejaculations, 37 PVSs and four surgical sperm retrievals. Low ejaculate volume was observed in 33% of the patients, and oligozoospermia in 37% of the patients. Specimens from 77 of the patients contained motile sperm and were therefore frozen for future use. There was no statistical difference for any of the fresh semen parameters between all groups. Twenty of them underwent ICSI leading to five live births, while four underwent intrauterine insemination. ART with frozen-thawed spermatozoa can provide men with SCI with comparable results as in the infertile population.
      PubDate: 2017-07-18T04:05:20.472814-05:
      DOI: 10.1111/and.12833
       
  • Association between alterations in DNA methylation level of spermatozoa at
           CpGs dinucleotide and male subfertility problems
    • Authors: M. Laqqan; E. F. Solomayer, M. Hammadeh
      Abstract: The purpose of this study was to assess the relationship between alterations in sperm DNA methylation levels and sperm count and sperm motility. Five CpG sites underwent deep bisulphite sequencing to validate the observed methylation difference in 78 samples (28 proven fertile males “controls,” and 50 subfertile males “cases”). The results showed that variation in methylation levels was found in more than one CpG: the DNA methylation levels in CpG1, CpG2 and CpG3 of the PRRC2A gene-related amplicon showed high significant differences in the case group compared to the control group (p ≤ .0001, p ≤ .003, and p ≤ .0001 respectively). Moreover, three CpGs of the four CpGs tested within the ANXA2 gene-related amplicon (CpG1, CpG3 and CpG4) were significantly different (p ≤ .002, p ≤ .001, and p ≤ .0001, respectively) in the case group compared to the control group. In addition, a significant difference was found in seven CpGs of the twenty-two CpGs tested within the MAPK8Ip3 gene-related amplicon, besides six CpGs of the ten CpGs tested within the GAA gene-related amplicon between case and control groups. In conclusion, this study identifies that CpGs have a significantly different in methylation levels of sperm DNA for subfertile males.
      PubDate: 2017-07-06T02:37:03.388772-05:
      DOI: 10.1111/and.12832
       
  • Sperm chromatin quality and DNA integrity in partial versus total
           globozoospermia
    • Authors: A.R. Talebi; J. Ghasemzadeh, M.A. Khalili, I. Halvaei, F. Fesahat
      Abstract: Globozoospermia is a severe form of teratozoospermia with low incidence in infertile patients, considered as one of the important causes of male infertility. The objective was to investigate the chromatin/DNA integrity as well as apoptosis in ejaculated spermatozoa of cases with partial or total globozoospermia. Fifty-seven semen samples were divided into three groups of partial globozoospermia (n = 17), total globozoospermia (n = 10) and normozoospermia (control; n = 30). Sperm chromatin condensation, DNA integrity and apoptosis were assessed using cytochemical assays. The results showed significant differences in sperm parameters of count and motility between two case groups versus controls. The percentages of spermatozoa with abnormal chromatin packaging and protamine deficiency were significantly higher in total and partial globozoospermic men compared to normozoospermic samples. Also, the rates of TUNEL-positive spermatozoa were significantly increased in both globozoospermic cases with respect to the control (18.3 ± 10.1 and 12.3 ± 9.2 versus 5.9 ± 3 respectively). However, no significant differences were noticed between two subgroups of patients with regard to sperm DNA denaturation, DNA fragmentation and apoptosis. Abnormal chromatin packaging, DNA damage and apoptosis were significantly higher in cases than controls. The sperm chromatin/DNA anomalies may be considered as one of the main aetiology of ART failure in globozoospermic patients.
      PubDate: 2017-05-18T05:36:22.843768-05:
      DOI: 10.1111/and.12823
       
  • Cigarette smoking induces only marginal changes in sperm DNA methylation
           levels of patients undergoing intracytoplasmic sperm injection treatment
    • Authors: Y. Al Khaled; S. Tierling, M. Laqqan, C. Lo Porto, M. E. Hammadeh
      Abstract: DNA methylation plays important roles in genome stability and regulation of gene expression. This study was designed to determine the influence of cigarette smoking on sperm DNA methylation. From a genome-wide survey on sperm samples, differentially methylated target CpGs should be selected and subjected to local deep bisulphite sequencing. Obtained methylation data are compared to sperm parameters and (ICSI) outcome. Similar to pilot study, samples were subjected to Infinium 450K BeadChip arrays to identify alterations in sperm DNA methylation between smokers and nonsmokers males. Routine testing on a significantly altered CpG site was performed on more samples using local deep bisulphite sequencing. Of approximately 485,000 CpG sites analysed, only seven CpGs were found to show a significant DNA methylation difference of>20% with the top six CpGs overlapping common SNP sites. The remaining CpG site (cg19455396) is located in intron 12 of the TAP2 gene. The results of deep bisulphite sequencing showed only a tendency towards hypomethylation in the smoking group. This study could not detect biologically relevant CpG positions that are altered in sperm DNA methylation on the influence of cigarette smoking beyond individual-specific effects that may be caused by other environmental factors.
      PubDate: 2017-05-14T20:40:56.17461-05:0
      DOI: 10.1111/and.12818
       
  • Comparison of the clinical efficacy and safety of the on-demand use of
           paroxetine, dapoxetine, sildenafil and combined dapoxetine with sildenafil
           in treatment of patients with premature ejaculation: A randomised
           placebo-controlled clinical trial
    • Authors: M. Abu El-Hamd; A. Abdelhamed
      Abstract: The aim of the study was to compare the clinical efficacy and safety of the on-demand use of paroxetine, dapoxetine, sildenafil and combined dapoxetine with sildenafil in treatment of patients with premature ejaculation (PE). In a single-blind placebo-controlled clinical study, 150 PE patients without erectile dysfunction (ED) were included during the period of March 2015 to May 2016. Patients were randomly divided into five groups (30 patients each). On demand placebo, paroxetine (30 mg), dapoxetine (30 mg), sildenafil citrate (50 mg) and combined dapoxetine (30 mg) with sildenafil citrate (50 mg) were given for patients for 6 weeks in each group respectively. All patients were instructed to record intravaginal ejaculatory latency time (IELT) and evaluated with Premature Ejaculation Diagnostic Tool (PEDT) and the patient satisfaction score before and after treatment. The mean of IELT, satisfaction score and PEDT in all groups was significantly improved after treatment (p value = .001). Combined dapoxetine with sildenafil group had the best values of IELT, satisfaction scores and PEDT in comparison with other treatment groups (p value
      PubDate: 2017-05-12T02:40:47.417153-05:
      DOI: 10.1111/and.12829
       
  • ICSI outcome in patients with high DNA fragmentation: Testicular versus
           ejaculated spermatozoa
    • Authors: M. Arafa; A. AlMalki, M. AlBadr, H. Burjaq, A. Majzoub, S. AlSaid, H. Elbardisi
      Abstract: Sperm DNA fragmentation (SDF) has emerged as an important biomarker in the assessment of male fertility potential with contradictory results regarding its effect on ICSI. The aim of this study was to evaluate intracytoplasmic sperm injection (ICSI) outcomes in male patients with high SDF using testicular versus ejaculated spermatozoa. This is a prospective study on 36 men with high-SDF levels who had a previous ICSI cycle from their ejaculates. A subsequent ICSI cycle was performed using spermatozoa retrieved through testicular sperm aspiration. Results of the prior ejaculate ICSI were compared with those of the TESA-ICSI. The mean (SD) SDF level was 56.36% (15.3%). Overall, there was no difference in the fertilization rate and embryo grading using ejaculate and testicular spermatozoa (46.4% vs. 47.8%, 50.2% vs. 53.4% respectively). However, clinical pregnancy was significantly higher in TESA group compared to ejaculated group (38.89% [14 of 36] vs. 13.8% [five of 36]). Moreover, 17 live births were documented in TESA group, and only three live births were documented in ejaculate group (p 
      PubDate: 2017-05-12T02:40:40.928491-05:
      DOI: 10.1111/and.12835
       
  • Adverse effects of leptin on histone-to-protamine transition during
           spermatogenesis are prevented by melatonin in Sprague-Dawley rats
    • Authors: F. A. Almabhouh; H. J. Singh
      Abstract: This study examines the effect of melatonin on leptin-induced changes in transition of histone to protamine in adult rats during spermatogenesis. Twelve-week-old Sprague-Dawley rats were randomised into control, leptin-, leptin–melatonin-10-, leptin–melatonin-20- and melatonin-10-treated groups with six rats per group. Leptin was given via intraperitoneal injections (i.p.) daily for 42 days (60 μg/kg body weight). Rats in the leptin- and melatonin-treated groups were given either 10 or 20 mg day−1 kg−1 body weight of leptin in drinking water. Melatonin-10-treated group received only 10 mg of melatonin day−1 kg−1 body weight in drinking water for 42 days. Control rats received 0.1 ml of 0.9% saline. Upon completion of the treatment, sperm count, morphology and histone-to-protamine ratio were estimated. Gene expression of HAT, HDAC1, HDAC2, H2B, H2A, H1, PRM1, PRM2, TNP1 and TNP2 was determined. Data were analysed using ANOVA. Sperm count was significantly lower, whereas the fraction of spermatozoa with abnormal morphology, the ratio of histone-to-protamine transition and the expressions of HAT, HDAC1, HDAC2, H2B, H2A, H1, PRM1 were significantly higher in leptin-treated rats than those in controls or melatonin-treated rats. It appears that exogenous leptin administration adversely affects histone-to-protamine transition, which is prevented by concurrent administration of melatonin.
      PubDate: 2017-05-12T02:35:56.775265-05:
      DOI: 10.1111/and.12814
       
  • Effects of testosterone replacement therapy on metabolic syndrome among
           Japanese hypogonadal men: A subanalysis of a prospective randomised
           controlled trial (EARTH study)
    • Authors: K. Shigehara; H. Konaka, T. Nohara, K. Izumi, Y. Kitagawa, Y. Kadono, T. Iwamoto, E. Koh, A. Mizokami, M. Namiki
      Abstract: We investigated the effects of testosterone replacement therapy (TRT) on metabolic factors among hypogonadal men with a metabolic syndrome. From the study population of the EARTH study, which was a randomised controlled study in Japan, 65 hypogonadal patients with a metabolic syndrome, comprising the TRT group (n = 32) and controls (n = 33), were included in this study analysis. The TRT group was administered 250 mg of testosterone enanthate as an intramuscular injection every 4 weeks for 12 months. Waist circumference, body mass index, body fat volume and blood pressure were measured in all patients at baseline and at 12 months. In addition, blood biochemical data, including total cholesterol, triglyceride (TG), HDL cholesterol, fasting plasma glucose (FPG) and haemoglobin A1c (HbA1c) levels, were also evaluated. Changes in these categories from baseline to 12 months were compared between the TRT and control groups, with significant differences observed in waist circumference, body fat percentage, FPG, TG and HbA1c levels. No significant differences were observed in other parameters. TRT for 1 year was associated with improvements in some metabolic factors among Japanese men with hypogonadism and metabolic syndrome.
      PubDate: 2017-05-12T02:35:53.948625-05:
      DOI: 10.1111/and.12815
       
  • Can haematologic parameters be used for differential diagnosis of
           testicular torsion and epididymitis'
    • Authors: A. Bitkin; M. Aydın, B. C. Özgür, L. Irkilata, E. Akgunes, Mevlut Keles, H. Sarıcı, M. K. Atilla
      Abstract: A differential diagnosis of testicular torsion and epididymitis has serious importance for testicular health. In emergency conditions, if testicular torsion goes unnoticed and epididymo-orchitis is diagnosed, organ loss may occur. This study aimed to evaluate the usefulness of haematologic parameters for the diagnosis of both testicular torsion and epididymo-orchitis and for differential diagnosis of these two diseases. Patients were divided into three groups as those undergoing surgery for testicular torsion, those receiving medical treatment for epididymitis and a healthy control group. All patients had complete blood counts taken with determinations of mean platelet volume (MPV), platelet/lymphocyte ratio (PLR), neutrophil/lymphocyte ratio (NLR) and leucocyte counts. These were then compared between groups. Leucocyte, MPV and NLR values were higher in both the epididymitis and torsion groups compared to the controls (p 
      PubDate: 2017-05-12T02:35:45.519167-05:
      DOI: 10.1111/and.12819
       
  • Inhibition of mTOR pathway decreases the expression of pre-meiotic and
           meiotic markers throughout postnatal development and in adult testes in
           mice
    • Authors: P. Sahin; N. E. Gungor-Ordueri, C. Celik-Ozenci
      Abstract: Rapamycin (mTOR inhibitor) has been reported to have negative effect on human male gonadal function. Previously, we showed that mTOR signalling molecules are expressed during early spermatogenesis in mice. The objective of this study was to investigate the role of mTOR signalling in meiosis both during the first wave of spermatogenesis and also during adult spermatogenesis. Day 5 post-partum mice were administered rapamycin and retinoic acid (RA; a Stra8 activator), and expression of p-p70S6K and Stra8 proteins was evaluated. p-p70S6K and Stra8 protein expressions decreased in post-natal testes after rapamycin treatment. Stra8 protein expression increased after RA and rapamycin+RA administrations in post-natal testes. In adult mice, rapamycin was administrated for 1 or 4 weeks. Morphological analysis for testicular damage and TUNEL assay was performed. After rapamycin administration, germ cell loss increased in adult testes. Ultrastructural analysis revealed disorganised testicular morphology and vacuolisation. The number of apoptotic germ cells increased after 4 weeks rapamycin administration. Stra8 and Dmc1 expressions decreased in 4 weeks rapamycin group, whereas Sycp3 and VASA expression did not change. Our findings suggest that mTOR pathway has an important role in meiotic progress of male germ cells both during first wave of spermatogenesis and in adult mice.
      PubDate: 2017-05-10T04:36:07.942105-05:
      DOI: 10.1111/and.12811
       
  • Ethanol-induced mitophagy in rat Sertoli cells: Implications for male
           fertility
    • Authors: N. Eid; Y. Kondo
      Abstract: Autophagy is a pro-survival mechanism involving lysosomal degradation of damaged cellular components following multiple forms of cellular stress. There is currently a lack of literature on the mechanism, and specifically on mitophagy (selective autophagy of damaged pro-apoptotic mitochondria) in Sertoli cells (SCs). Against such a background, the authors induced mitophagy in SCs of adult male rats using a single injection of ethanol (5 g/kg) and observed mitophagy in the SCs via transmission electron microscopy 24 hr later. In addition, we briefly discussed the possible clinical implications of enhanced autophagy and mitophagy in stressed SCs in our model and in other models of acute stress (e.g., heat and transplantation stress). Further studies on SC autophagy are required, as a full understanding of the molecular mechanisms controlling autophagy in stressed SCs may have therapeutic implications for infertility treatment.
      PubDate: 2017-05-10T04:36:01.29455-05:0
      DOI: 10.1111/and.12820
       
  • Comparison of three different extenders on Murrah buffaloes (Bubalus
           bubalis) semen freezability
    • Authors: M. F. Zorzetto; I. Martin, Y. F. R. Sancler-Silva, S. Zoca, C. P. Freitas-Dell'Aqua, F. O. Papa, A. A. Ramos, J. F. Nunes, C. C. M. Salgueiro, E. Oba
      Abstract: The use of frozen semen for artificial insemination is the main approach utilised for the genetic improvement of most domesticated species. The advantages include lower transportation costs, continuous availability of semen, fewer occurrences of sexually transmitted diseases and the incorporation of desirable genes in a relatively short amount of time. Nevertheless, the use of frozen semen in buffalo herds remains limited due to the loss of sperm quality when buffalo semen is frozen. So, the goal of this study was to evaluate the pre- and post-cryopreservation quality of buffalo semen diluted in three distinct freezing media: Tris-egg yolk, Botu-bov® (BB) and ACP-111®. Thirty-two ejaculates from four bulls were analysed in terms of kinetics, morphology and sperm viability by epifluorescence microscope. Thawed samples were also evaluated for capacitation-like damage, DNA fragmentation and plasma and acrosomal membrane integrity using flow cytometry. The Tris-egg yolk and BB® extenders yielded better results than the ACP-111® extender for kinetics parameter (total motility, progressive motility and percentage of rapid cells). However, semen samples were similar for parameters evaluated by flow cytometry. Taken together, the data indicate that in comparison with Tris-egg yolk and BB extender, ACP-111® can also be used as an extender for buffalo semen cryopreservation.
      PubDate: 2017-05-10T04:35:57.814572-05:
      DOI: 10.1111/and.12830
       
  • Apoptotic sperm biomarkers and the correlation between conventional sperm
           parameters and clinical characteristics
    • Authors: R. Hichri; H. Amor, M. Khammari, M. Harzallah, S. El Fekih, A. Saad, M. Ajina, H. Ben Ali
      Abstract: The principal aim of this retrospective study was to examine the relationship between sperm apoptotic biomarkers and the patient's biclinical characteristics, the conventional sperm parameters and the results of assisted reproductive technology. Sperm analysis, activated caspases, annexin V staining for phosphatidylserine (PS) externalisation and labelling assay for DNA fragmentation were assessed in 122 males of infertile couples. Fifty-seven couples were allocated to the natural conception group, and 65 couples underwent IVF or ICSI. Semen of IVF/ICSI patients showed a higher proportion of apoptotic spermatozoa in their spermatozoa when compared with a natural conception group (p 
      PubDate: 2017-05-10T04:35:46.386235-05:
      DOI: 10.1111/and.12813
       
  • Steroidogenesis decline accompanied with reduced antioxidation and
           endoplasmic reticulum stress in mice testes during ageing
    • Authors: D. Huang; W. Wei, F. Xie, X. Zhu, L. Zheng, Z. Lv
      Abstract: To gain an understanding of the mechanisms by which Leydig cell steroidogenic function degenerates with ageing, we explored steroidogenic gene expression in relation to antioxidation status and endoplasmic reticulum (ER) stress during the ageing of mice. Expression of StAR, P450scc and other steroidogenic enzymes decreased starting at middle age (12-month-old) compared to that of the young control (3-month-old) mice. The immunohistochemical staining intensity of 3β-HSD for Leydig cells was significantly weaker in the aged (24-month-old) group than that in the young control group. The number of Leydig cells showed no significant difference between the groups. A progressive reduction in antioxidants MnSOD and GPx4 was observed in the testicular tissue with down-regulated SIRT1 protein level in the middle-aged and aged (24-month-old) mice. The number of testicular macrophages was significantly higher in the aged group than that in the middle-aged and young mice. Age-associated up-regulation of ER stress markers such as GRP78 and Chop was observed. These results suggested that oxidative stress and ER stress might play a role in the deficit of Leydig cell steroidogenic function during ageing.
      PubDate: 2017-05-09T22:15:30.934185-05:
      DOI: 10.1111/and.12816
       
  • NGF promotes mitochondrial function by activating PGC-1α in TM4
           Sertoli cells
    • Authors: Y. W. Jiang; Y. Zhao, S. X. Chen, L. Chen, C. J. Li, X. Zhou
      Abstract: Nerve growth factor (NGF), which is required for the survival and differentiation of the nervous system, has been proved to play important roles in male reproductive physiology. Several studies have focused on the roles of NGF in the testes. However, no study has reported on the mechanism of paracrine and autocrine actions of NGF in Sertoli cells. This study showed that NGF stimulated mitochondrial activity and biogenesis in TM4 Sertoli cells. Moreover, our results demonstrated that peroxisome proliferator-activated receptor-gamma coactivator-1α is a possible downstream key target of the NGF signalling pathway. In a 3-nitropropionic acid cell model, NGF treatment attenuated mitochondrial activity defect and depolarisation. This NGF-triggered signalling may help in discovering new therapeutic targets for certain male infertility disorders.
      PubDate: 2017-05-03T22:20:26.033212-05:
      DOI: 10.1111/and.12837
       
  • Protective effect of Propolfenol® on induced oxidative stress in
           human spermatozoa
    • Authors: M. Biagi; G. Collodel, M. Corsini, N. A. Pascarelli, E. Moretti
      Abstract: The propolis extract was shown to possess the capacity to protect sperm membrane from the deleterious action of oxidative attack. Oxidative stress can induce propagation of a lipid peroxidation (LPO) chain reaction because spermatozoa contain high concentration of unsaturated fatty acids. This study aimed at evaluating in vitro the possible toxicity and/or the antioxidant properties of Propolfenol® in ejaculated human spermatozoa. A colorimetric assay determined the total flavonoid content by spectrophotometry and a high-performance liquid chromatography–diode array detection analysis the quantity of galangin, pinocembrin and caffeic acid phenylethilic ester (CAPE). Sperm parameters such as motility, vitality and DNA integrity were assessed utilising optical microscopy. The antioxidant properties Propolfenol® against LPO induced by tert-Butyl Hydroperoxide were evaluated using the C11-BODIPY581/591 probe. Chemical analysis of Propolfenol® revealed low quantities of galangin, pinocembrin and CAPE; cyclic voltammetry experiments showed that Propolfenol® may exert an antioxidant activity. A protective action of Propolfenol® (20 and 100 μg/ml) on induced LPO in human spermatozoa was detected. Propolfenol® may be proposed as the supplement in media for sperm preparation techniques or cryopreservation to counteract the increased presence of reactive oxygen species generated by these methods.
      PubDate: 2017-05-03T21:45:32.34797-05:0
      DOI: 10.1111/and.12807
       
  • NOS3 gene variants and male infertility: Association of 4a/4b with
           oligoasthenozoospermia
    • Authors: N. L. J. Vučić; Z. Z. Nikolić, V. D. Vukotić, S. M. Tomović, I. I. Vuković, S. D. Kanazir, D. L. J. Savić-Pavićević, G. N. Brajušković
      Abstract: Results of recent studies confirmed that oxidative stress negatively affects sperm motility and causes sperm DNA damage. Produced by nitric oxide synthase 3 (NOS3), nitric oxide is considered to be one of the important mediators of oxidative stress in testis tissue. The aim of this study was to assess the possible association of three genetic variants (rs2070744, rs1799983 and intron variant 4a/4b) in NOS3 gene and infertility occurrence in two groups of infertile men (idiopathic azoospermia and oligoasthenozoospermia) and fertile controls. Genotypes for the single-nucleotide genetic variants rs1799983 and rs2070744 were determined by PCR-RFLP, while genotyping of intron 4 variant 4a/4b was performed by gel electrophoresis of PCR products. Statistical analysis was performed by SNPStats software. No significant association between the three genetic variants of the NOS3 gene and infertility risk was determined comparing allele and genotype frequencies among group of patients diagnosed with azoospermia and the control group. Nevertheless, there was a significant positive association between 4a/4b and infertility in the group of males diagnosed with oligoasthenozoospermia, under overdominant genetic model. Our findings suggest that tandem repeat variant within intron 4 of the NOS3 gene is associated with an increased risk of infertility in men diagnosed with idiopathic oligoasthenozoospermia.
      PubDate: 2017-05-03T02:37:02.925539-05:
      DOI: 10.1111/and.12817
       
  • Selection of viable human spermatozoa with low levels of DNA fragmentation
           from an immotile population using density gradient centrifugation and
           magnetic-activated cell sorting
    • Authors: H. Zhang; X. Xuan, S. Yang, X. Li, C. Xu, X. Gao
      Abstract: We aimed to determine whether density gradient centrifugation and magnetic-activated cell sorting (DGC-MACS) could select viable spermatozoa, with lower levels of DNA fragmentation, from an immotile population. Analysis involved sixteen patients, each with a sperm count ≥107/mL. All samples were immotile despite exhibiting a live population>40%. Spermatozoa were prepared using DGC-MACS and selected spermatozoa evaluated for membrane and DNA integrity using the hypo-osmotic swelling (HOS) test, vital staining and the TUNEL test. The mean proportion of spermatozoa with an intact membrane in control, DGC and DGC-MACS populations, was 52.5 ± 12.21%, 69.38 ± 7.87% and 81.81 ± 5.29%. The mean proportion of live spermatozoa in control, DGC and DGC-MACS populations, was 65.88 ± 12.77%, 77.25 ± 7.39% and 85.81 ± 5.2%. DGC-MACS reduced the within-sample discrepancy between HOS test and vital stain results from 13.18% to 4.12%. The mean proportion of spermatozoa exhibiting DNA damage in control, DGC and DGC-MACS populations, was 9.56 ± 3.39%, 5.25 ± 1.61% and 2.75 ± 1.13%. Finally, analysis showed that 71.23% of the DNA-fragmented spermatozoa in unprocessed samples were removed following DGC-MACS and that the addition of MACS to an existing DGC protocol reduced fragmented spermatozoa by a further 26.15% compared to DGC alone. Consequently, DGC-MACS is a clinically viable method able to select viable spermatozoa with lower levels of DNA fragmentation from an immotile population.
      PubDate: 2017-05-03T02:36:58.741661-05:
      DOI: 10.1111/and.12821
       
  • The influence of male age on treatment outcomes and neonatal birthweight
           following assisted reproduction technology involving intracytoplasmic
           sperm injection (ICSI) cycles
    • Authors: N.-Z. Ma; L. Chen, L.-L. Hu, W. Dai, Z.-Q. Bu, Y.-P. Sun
      Abstract: The aim of this study was to investigate the effect of male age on treatment outcomes and neonatal birthweight following intracytoplasmic sperm injection (ICSI). This study included 2,474 ICSI cycles. Male partners were stratified into 5-year age categories (up to 25, 26–30, 31–35, 36–40 and 41 and up). Multilevel logistic regression was used to evaluate the relationship between male age and treatment outcomes. After adjusting for confounders, we found no difference in the clinical pregnancy rate. However, we observed that the 31- to 35-year group had a higher odds of live birth than that of the>41-year group (aOR 1.63, p = .03), and that the risk of abortion in the 31- to 35-year group was lower than that of the reference group (aOR 0.41, p = .02). A total of 754 single-foetus newborns and 556 twin newborns were analysed. Among the singletons, none of the variables differed among the five groups (p > .05). Among the twins, the infants in the 36- to 40-year group had a lower neonatal birthweight and a higher low-birthweight rate than those of the other groups (p 
      PubDate: 2017-05-03T02:36:45.314463-05:
      DOI: 10.1111/and.12826
       
  • Protective effect of L-carnitine and L-arginine against busulfan-induced
           oligospermia in adult rat
    • Authors: A. M. Abd-Elrazek; O. A. H. Ahmed-Farid
      Abstract: Busulfan is an anticancer drug caused variety of adverse effects for patients with cancer. But it could cause damage to the male reproductive system as one of its adverse effects. This study aimed to investigate the protective effect of L-carnitine and L-arginine on semen quality, oxidative stress parameters and testes cell energy after busulfan treatment. Adult male rats were divided into four groups: control (Con), busulfan (Bus), busulfan plus L-arginine (Bus + L-arg) and busulfan plus L-carnitine (Bus + L-car). After 28 days, the semen was collected from the epididymis and the testes were assessed. Sperm count, motility and velocity were measured by CASA, and smears were prepared for assessment of sperm morphology. Serum and testes supernatants were separated for DNA metabolites, oxidative stress and cell energy parameters. Testes tissues also subjected for caspase-3. The results showed significant improvement in sperm morphology, motility, velocity and count in the groups treated with L-arginine and L-carnitine and accompanied with an increase in MDA, GSSG and ATP, reduction in GSH, AMP, ADP, NO and 8-OHDG also recorded. These results are supported by caspase-3. Conclusions: Administration of L-arg and L-car attenuated the cytotoxic effects of busulfan by improving semen parameters, reducing oxidative stress and maintaining cell energy.
      PubDate: 2017-04-25T21:16:17.751135-05:
      DOI: 10.1111/and.12806
       
  • Possible role of serum testosterone, gonadotropins and prolactin in
           patients with premature ejaculation
    • Authors: M. Abu El-Hamd; A. Farah
      Abstract: Premature ejaculation (PE) is the most common male sexual dysfunction. This study aimed to investigate the role of serum testosterone, gonadotropins and prolactin in patients with PE. In a prospective a case-controlled study, it was conducted on 90 male patients with PE and 90 male healthy participants as controls. Patients were evaluated by Premature Ejaculation Diagnostic Tool (PEDT) and intravaginal ejaculatory latency time (IELT). Patients with mean IELT values ≤60 s and PEDT total scores ≥11 were considered to have PE. Serum levels of total testosterone (TT), free testosterone (FT), follicle-stimulating hormone (FSH), luteinising hormone (LH) and prolactin (PL) were investigated in patients with PE and controls. There was no statistically significant difference between patients with PE and controls regarding the serum levels of TT, FT, FSH, LH and PL (p value ˃.05). There was no significant correlation between the sex hormones levels (TT, FT, FSH, LH and PL) and (age, body mass index (BMI), IELTS and total PEDT scores of the patients; p value ˃.05). This study concluded that there was no disturbance in serum levels of testosterone, gonadotropins and prolactin in patients with PE and controls. These hormones could not relate to pathogenesis of PE.
      PubDate: 2017-04-24T20:55:32.154836-05:
      DOI: 10.1111/and.12808
       
  • Molecular detection of Chlamydia trachomatis and semen quality of sexual
           partners of infertile women
    • Authors: M. López-Hurtado; M. Velazco-Fernández, M. J. E. Pedraza-Sánchez, V. R. Flores-Salazar, R. Villagrana Zesati, F. M. Guerra-Infante
      Abstract: Chlamydia trachomatis is considered as the bacterium that is more sexually transmitted as cause of male urethritis, epididymitis, orchitis and infertility. A total of 116 semen samples of men whose couples are infertile women were analysed. The quality of the semen was measured by standard procedures recommended by WHO while C. trachomatis was detected by the PCR assay. Thirty-seven semen samples were positive for C. trachomatis (31.9%). Regarding semen analysis, no different values were observed between positive and negative samples to C. trachomatis. However, the presence of leucocytes and erythrocytes suggests an inflammatory process; however, these were high in negative samples to C. trachomatis. Furthermore, an association between low seminal volume at 1, 5 ml and the positivity to C. trachomatis was observed (OR=2, 1; CI95% 1,16-3,07). The total semen volume is a contribution by the various accessory glands (this reflects the secretory activity of the glands); a low semen volume could be due to an obstruction of the ejaculatory duct or infection of accessory glands by C. trachomatis. More studies are necessary to identify the causes of a reduced semen volume.
      PubDate: 2017-04-19T01:36:59.503414-05:
      DOI: 10.1111/and.12812
       
  • Association of the c.-9C>T and c.368A>G transitions in H2BFWT gene with
           male infertility in an Iranian population
    • Authors: A. Rafatmanesh; H. Nikzad, A. Ebrahimi, M. Karimian, T. Zamani
      Abstract: The H2BFWT (H2B family, member W, testis specific) gene is a testis-specific histone which is involved in the spermatogenesis process. This study aimed to investigate the association of H2BFWT gene c.-9C>T and c.368A>G polymorphisms with male infertility in an Iranian population. The 232 independent individuals, including 109 infertile men and 123 healthy controls, were recruited from IVF centre (Kashan, Iran). The allele types of c.-9C>T and c.368A>G polymorphisms were detected by using PCR-RFLP method. In overall analysis, we found that the c.-9T (OR: 1.75, 95% CI: 1.04–2.95, p = .035) and c.368G (OR: 1.71, 95% CI: 1.02–2.89, p = .042) alleles are associated with male infertility. The c.-9T allele was also associated with nonobstructive azoospermia (OR: 2.08, 95% CI: 1.01–4.25, p = .046), while c.368G allele was associated with oligozoospermia (OR: 2.10, 95% CI: 1.15–3.85, p = .016). It is concluded that H2BFWT gene c.-9C>T and c.368A>G polymorphisms might be genetic risk factors for idiopathic male infertility.
      PubDate: 2017-03-30T02:50:22.889647-05:
      DOI: 10.1111/and.12805
       
  • Honey improves spermatogenesis and hormone secretion in testicular
           ischaemia–reperfusion-induced injury in rats
    • Authors: M. Gholami; A. Abbaszadeh, Z. Khanipour Khayat, K. Anbari, P. Baharvand, A. M. Gharravi
      Abstract: This study was conducted to survey the protective effect of pre-treatment with Persian honey during post-ischaemia reperfusion on ischaemia–reperfusion (IR)-induced testis injury. Animals were divided into four groups of IR, honey + ischaemia- reperfusion (HIR), vitamin C + ischaemia- reperfusion (VIR) and carbohydrates + ischaemia- reperfusion (CIR). The testes were examined for spermatogenesis index. Detection of single- and double-stranded DNA breaks at the early stages of apoptosis was performed. Total serum concentration of FSH, LH and testosterone was measured using ELISA. All data were expressed as mean ± SD in each group, and significance was set at p ≤ .05. Spermatogenesis index was significant in the HIR group (p 
      PubDate: 2017-03-28T08:45:30.355242-05:
      DOI: 10.1111/and.12804
       
  • Cumene hydroperoxide induced changes in oxidation–reduction potential in
           fresh and frozen seminal ejaculates
    • Authors: A. Agarwal; R. Sharma, R. Henkel, S. Roychoudhury, S. C. Sikka, S. Plessis, Y. B. Sarda, C. Speyer, M. Nouh, C. Douglas, Z. Kayali, A. Elshaer, E. Sabanegh
      Abstract: Oxidation–reduction potential (ORP) is a newer integrated measure of the balance between total oxidants (reactive oxygen species—ROS) and reductants (antioxidants) that reflects oxidative stress in a biological system. This study measures ORP and evaluates the effect of exogenous induction of oxidative stress by cumene hydroperoxide (CH) on ORP in fresh and frozen semen using the MiOXSYS Analyzer. Semen samples from healthy donors (n = 20) were collected and evaluated for sperm parameters. All samples were then flash-frozen at −80°C. Oxidative stress was induced by CH (5 and 50 μmoles/ml). Static ORP (sORP—(mV/106 sperm/ml) and capacity ORP (cORP—μC/106 sperm/ml) were measured in all samples before and after freezing. All values are reported as mean ± SEM. Both 5 and 50 μmoles/ml of CH resulted in a significant decline in per cent motility compared to control in pre-freeze semen samples. The increase in both pre-freeze and post-thaw semen samples for sORP was higher in the controls than with 50 μmoles/ml of CH. The change from pre-freeze to post-thaw cORP was comparable. The system is a simple, sensitive and portable tool to measure the seminal ORP and its dynamic impact on sperm parameters in both fresh and frozen semen specimens.
      PubDate: 2017-03-15T03:45:29.788819-05:
      DOI: 10.1111/and.12796
       
  • Sperm DNA fragmentation as a result of ultra-endurance exercise training
           in male athletes
    • Authors: D. Vaamonde; C. Algar-Santacruz, A. Abbasi, J. M. García-Manso
      Abstract: Intensive sports practice seems to exert negative effects on semen parameters; in order to assess these effects, the objective of this study was to assess semen, including DNA fragmentation, and hormone parameters in elite triathletes. Twelve high-level triathletes preparing for a National Triathlon Championship participated in the study. The qualitative sperm parameters analysed were volume, sperm count, motility, morphology and DNA fragmentation; when needed, additional testing was performed. Assessed hormones were testosterone (T), cortisol (C) and testosterone–cortisol ratio (T/C). Maximum oxygen consumption and training characteristics were also assessed. Hormonal values and physical semen parameters were within normal ranges. DNA fragmentation showed high values (20.4 ± 6.1%). Round cells in semen were higher than normal (2.8 ± 1.5 million/ml), with the presence of macrophages. Correlations were found for several parameters: concentration of round cells positively correlated with progressive sperm motility (p = .01) and sperm morphology (p = .02); contrarily, the correlation found with DNA fragmentation was negative (p = .04). Sperm DNA fragmentation and the T/C ratio, however, were correlated in a positive manner (p = .03). As evidenced by the observed results, sperm DNA fragmentation is affected by high-level sports practice; therefore, high loads of endurance training could potentially interfere with the athlete's fertility potential.
      PubDate: 2017-03-15T03:21:40.450613-05:
      DOI: 10.1111/and.12793
       
  • Icariin improves the sexual function of male mice through the
           PI3K/AKT/eNOS/NO signalling pathway
    • Authors: J. Ding; Y. Tang, Z. Tang, X. Zu, L. Qi, X. Zhang, G. Wang
      Abstract: We aimed to investigate the effect and mechanism of icariin on male sexual function. Forty-eight Crl:CD1(ICR) male mice were randomly divided into control, low-, medium- and high-dose icariin group (intragastric administration of 50, 100 and 200 mg/kg/d for 21 days). Mating experiment was then performed at a ratio of 1: 3 (male: female). The mating behaviours of male mice were recorded. The genital indexes and serum testosterone, nitric oxide (NO), hypothalamic dopamine (DA) and 5- hydroxy tryptophan (5-HT) concentrations were measured. The expression of endothelial nitric oxide (eNOS), phosphatidylinositol tallow alcohol 3-kinase (PI3K) and phosphorylated protein kinase (p-AKT) in penile tissue was detected by Western blot. All icariin groups exhibited shorter capture latency and ejaculation latency, increased number of capture and ejaculation, higher capture and ejaculation rate, and higher testicular and prostate indexes compared with controls (p 
      PubDate: 2017-03-15T03:21:37.238026-05:
      DOI: 10.1111/and.12802
       
  • Androgen deficiency impairs erectile function in rats through promotion of
           corporal fibrosis
    • Authors: K. Cui; R. Li, R. Chen, M. Li, T. Wang, J. Yang, Z. Chen, S. Wang, J. Liu, K. Rao
      Abstract: The aim of this study was to investigate the underlying mechanism of androgen deficiency inducing corporal fibrosis, thereby causing erectile dysfunction (ED). Forty 12-week-old healthy male rats were divided randomly into four groups: normal control group (Control); castration group (Castration); the other 20 rats were castrated followed by testosterone (T) (orally) each day: castration + 10mg/kg T group (Castration + 10T) and castration + 20 mg/kg T group (Castration + 20T). After 8 weeks' treatment, the main outcome measures were the following: serum levels of T; the ratios of intracavernous pressure (ICP) to mean arterial pressure (MAP); histologic changes in penile smooth muscle cells; the Smad and non-Smad pathways; and extracellular matrix (ECM) protein deposition. Castration group showed lower level of T and ratio of ICP/MAP, reduced ratio of penile smooth muscle cells/collagen, increased extracellular matrix protein deposition, and a higher expression of the Smad and non-Smad pathways. Castration + 10T partially preserved erectile function and histology stabilisation. However, the Castration + 20T group showed significantly better erectile function and molecular changes. Better efficacy could be expected with ART of adequate dose. Androgen deficiency induces corporal fibrosis through activation of the Smad and non-Smad pathways, and accumulation of ECM proteins.
      PubDate: 2017-03-10T10:35:12.062535-05:
      DOI: 10.1111/and.12797
       
  • Single nucleotide polymorphisms associated with nonsyndromic
           cryptorchidism in Mexican patients
    • Authors: M. Chávez-Saldaña; R. M. Vigueras-Villaseñor, E. Yokoyama-Rebollar, D. A. Landero-Huerta, J. C. Rojas-Castañeda, L. Taja-Chayeb, J. O. Cuevas-Alpuche, E. Zambrano
      Abstract: Cryptorchidism is a frequent genitourinary malformation considered as an important risk factor for infertility and testicular malignancy. The aetiology of cryptorchidism is multifactorial in which certain SNPs, capable of inhibiting the development of the gubernaculum, are implicated. We analysed 16 SNPs by allelic discrimination and automated sequencing in 85 patients and 99 healthy people, with the objective to identify the association between these variants and isolated cryptorchidism. In two different patients with unilateral cryptorchidism, we found the variants rs121912556 and p.R105R of INSL3 gene in a heterozygous form associated with cryptorchidism, so we could considered them as risk factors for cryptorchidism. On the other hand, SNPs rs10421916 of INSL3 gene, as well as the variants rs1555633 and rs7325513 in the RXFP2 gene, and rs3779456 variant of the HOXA10 gene were statistically significant, when the patients and controls were compared and could be considered as protective factors since are predominantly present in controls. The genotype–phenotype correlation did not show statistical significance. With these results, we could conclude that these polymorphisms can be considered as important variants in our population and would contribute in the future knowledge of the aetiology and physiopathology of cryptorchidism.
      PubDate: 2017-03-10T10:35:02.493583-05:
      DOI: 10.1111/and.12788
       
  • Ferulic acid prevents lead-induced testicular oxidative stress and
           suppressed spermatogenesis in rats
    • Authors: P. Hasanein; F. Fazeli, M. Parviz, M. Roghani
      Abstract: Lead affects multiple organ systems including testis. We investigated the effects of ferulic acid (FA) on lead-induced oxidative stress and spermatogenesis suppression in rats. Animals received lead acetate (500 mg/L in drinking water) and/or FA (50 mg/kg, i.g.) for eight weeks. Lead increased testicular malondialdehyde (MDA) and nitrite levels and decreased glutathione (GSH) content and catalase (CAT) activity. Lead decreased testis weight and testosterone level. Sperm parameters decreased in lead group. FA ameliorated the decreased testis weight, serum testosterone as well as sperm count, viability, motility and normal morphology in lead group. FA improved antioxidant capacity as well as sperm count, viability, motility and normal morphology. FA decreased Johnsen's mean testicular biopsy score (MTBS) criteria by restoring degeneration, atrophy and tubular disarrangement. FA also normalised spermatogonia, spermatocytes and spermatids numbers in lead group and led to increases in number of Leydig and Sertoli cells. FA showed beneficial effects in lead-induced testicular oxidative stress and spermatological disorders, through inhibiting lipid peroxidation and enhancing antioxidant defence systems. The positive effects of FA on Leydig cells may be involved in restoring testosterone levels in lead group. FA can be considered a potential candidate to protect testis against the deleterious effect of lead intoxication.
      PubDate: 2017-03-10T10:33:59.063265-05:
      DOI: 10.1111/and.12798
       
  • Efficacy and safety of testosterone replacement gel for treating
           hypogonadism in men: Phase III open-label studies
    • Authors: L. Belkoff; G. Brock, D. Carrara, A. Neijber, M. Ando, J. Mitchel
      Abstract: Efficacy and safety of testosterone gel 2% (TG) were evaluated in two phase 3, open-labelled, single-arm, multicentre studies (000023 and extension study 000077). Hypogonadal men having serum testosterone levels 1500 ng/dl, with no significant safety concerns. Significant improvements in sexual function and quality of life were noted in both studies. Subjects experienced few skin reactions without notable increases in prostate-specific antigen and haematocrit levels. TG was efficacious with an acceptable safety profile. Cmax>1500 ng/dl did not exhibit distinct impact on safety parameters. However, further optimisation of titration schema to reduce Cmax is warranted while maintaining the average steady state total testosterone concentration.
      PubDate: 2017-03-10T10:32:44.549248-05:
      DOI: 10.1111/and.12801
       
  • Long-term feeding of hydroalcoholic extract powder of Lepidium meyenii
           (maca) enhances the steroidogenic ability of Leydig cells to alleviate its
           decline with ageing in male rats
    • Authors: K. Yoshida; Y. Ohta, N. Kawate, M. Takahashi, T. Inaba, S. Hatoya, H. Morii, K. Takahashi, M. Ito, H. Tamada
      Abstract: This study examined whether feeding hydroalcoholic extract of Lepidium meyenii (maca) to 8-week-old (sexually maturing) or 18-week-old (mature) male rats for more than a half year affects serum testosterone concentration and testosterone production by Leydig cells cultured with hCG, 22R-hydroxycholesterol or pregnenolone. Testosterone concentration was determined in the serum samples obtained before and 6, 12, 18 and 24 weeks after the feeding, and it was significantly increased only at the 6 weeks in the group fed with the maca extract to maturing rats when it was compared with controls. Testosterone production by Leydig cells significantly increased when cultured with hCG by feeding the maca extract to maturing rats for 27 weeks (35 weeks of age) and when cultured with 22R-hydroxycholesterol by feeding it to mature rats for 30 weeks (48 weeks of age). Overall testosterone production by cultured Leydig cells decreased to about a half from 35 to 48 weeks of age. These results suggest that feeding the maca extract for a long time to male rats may enhance the steroidogenic ability of Leydig cells to alleviate its decline with ageing, whereas it may cause only a transient increase in blood testosterone concentration in sexually maturing male rats.
      PubDate: 2017-03-10T10:32:39.608735-05:
      DOI: 10.1111/and.12803
       
  • Testosterone in human studies: Modest associations between plasma and
           salivary measurements
    • Authors: A. E. Wit; F. J. Bosker, E. J. Giltay, C. S. Kloet, K. Roelofs, J. Pelt, B. W. J. H. Penninx, R. A. Schoevers
      Abstract: Testosterone is involved in many processes like aggression and mood disorders. As it may easily diffuse from blood into saliva, salivary testosterone is thought to reflect plasma free testosterone level. If so, it would provide a welcome noninvasive and less stressful alternative to blood sampling. Past research did not reveal consensus regarding the strength of the association, but sample sizes were small. This study aimed to analyse the association in a large cohort. In total, 2,048 participants (age range 18–65 years; 696 males and 1,352 females) were included and saliva (using cotton Salivettes) and plasma were collected for testosterone measurements. Levels were determined by enzyme-linked immunosorbent assay and radioimmunoassay respectively. Free testosterone was calculated by the Vermeulen algorithm. Associations were determined using linear regression analyses. Plasma total and free testosterone showed a significant association with salivary testosterone in men (adjusted β = .09, p = .01; and β = .15, p 
      PubDate: 2017-03-07T06:15:50.28264-05:0
      DOI: 10.1111/and.12779
       
  • Genetic analysis of HOXA11 gene in Chinese patients with cryptorchidism
    • Authors: P. Lu; Y. Wang, F. Wang, J. Huang, Y. Zeng, D. He, H. Huang, Z. Cheng
      Abstract: Cryptorchidism is the most common congenital anomaly in male children. Its aetiology remains unknown in the majority of cases. Because HOXA11 plays a vital role in regulating testicular descent, genetic variants in HOXA11 genes may contribute to the risk of cryptorchidism. In this study, mutation analysis was performed on the HOXA11 gene in a cohort of 89 patients with cryptorchidism. Furthermore, an association analysis of the HOXA11 tag single nucleotide polymorphism rs6461992 was performed in 168 patients with unilateral cryptorchidism and 193 controls. No pathogenic mutations were found. A significant difference in genotype and allele distribution was detected between cases and controls (p = .029 and .022 respectively). These results suggest that mutations in the coding sequence of HOXA11 might not be a common cause of cryptorchidism, while common polymorphisms in the HOXA11 gene might contribute to the risk of developing unilateral cryptorchidism.
      PubDate: 2017-03-06T04:55:38.976534-05:
      DOI: 10.1111/and.12790
       
  • Impact of physical activity on patient self-reported outcomes of lifelong
           premature ejaculation patients: Results of a prospective, randomised,
           sham-controlled trial
    • Authors: M. F. Kilinc; Y. Aydogmus, Y. Yildiz, O. G. Doluoglu
      Abstract: Previous studies have investigated whether physical activity increases serotonin hormone levels. Serotonin receptor dysfunction is one of the frequently accused factors of premature ejaculation (PE). Nevertheless, no studies up to date have demonstrated that the association between physical activity and premature ejaculation. We aimed to investigate the relationship between physical activity and PE and determine whether moderate physical activity might delay ejaculation time or be an alternative treatment for PE. A total of 105 patients diagnosed with PE were enrolled in this study. Of the patients, 35 were treated with dapoxetine, (30 mg) on demand (Group 1), 35 performed moderate physical activities (Group 2), and 35 performed minimal physical activity (Group 3-sham). Demographic characteristics, metabolic equivalents (MET), premature ejaculation diagnostic tool (PEDT) and intravaginal ejaculatory latency time (IELT) were recorded. There were no significant differences among three groups in terms of age, BMI, MET, PEDT or IELT before treatment. At the end of the study, there was significant decrease in PEDT scores, and increase in IELT in groups 1 and 2 as compared to Group 3. In conclusion, a moderate physical activity longer than 30 min at least 5 times a week leads to ejaculation delay, and appears as an alternative to dapoxetine on demand for the treatment of PE.
      PubDate: 2017-03-06T04:51:25.24311-05:0
      DOI: 10.1111/and.12799
       
  • Sperm DNA fragmentation affects epigenetic feature in human male
           pronucleus
    • Authors: H. Rajabi; H. Mohseni-kouchesfehani, T. Eslami-Arshaghi, M. Salehi
      Abstract: To evaluate whether the sperm DNA fragmentation affects male pronucleus epigenetic factors, semen analysis was performed and DNA fragmentation was assessed by the method of sperm chromatin structure assay (SCSA). Human-mouse interspecies fertilisation was used to create human male pronucleus. Male pronucleus DNA methylation and H4K12 acetylation were evaluated by immunostaining. Results showed a significant positive correlation between the level of sperm DNA fragmentation and DNA methylation in male pronuclei. In other words, an increase in DNA damage caused an upsurge in DNA methylation. In the case of H4K12 acetylation, no correlation was detected between DNA damage and the level of histone acetylation in the normal group, but results for the group in which male pronuclei were derived from sperm cells with DNA fragmentation, increased DNA damage led to a decreased acetylation level. Sperm DNA fragmentation interferes with the active demethylation process and disrupts the insertion of histones into the male chromatin in the male pronucleus, following fertilisation.
      PubDate: 2017-03-06T04:50:54.323139-05:
      DOI: 10.1111/and.12800
       
  • Cryoprotectant effect of trehalose in extender on post-thaw quality and in
           vivo fertility of water buffalo (Bubalus bubalis) bull spermatozoa
    • Authors: S. Iqbal; S. Naz, H. Ahmed, S. M. H. Andrabi
      Abstract: This study was designed to ascertain the cryoprotectant effects of different concentrations of trehalose [0 (T0), 25 (T25), 35 (T35), 45 (T45) mm], egg yolk [20% (E20), 15% (E15) v/v] and glycerol [7% (G7), 5% (G5) v/v] in Tris-citric acid-based extender on post-thaw quality and in vivo fertility of buffalo bull spermatozoa. Twenty-five ejaculates were collected from five bulls and split into four parts. After that, the split ejaculates from each of the bull were diluted either in T0E20G7 (control) or T25E20G5 or T35E15G5 or T45E15G5 extender. Finally, the sperm suspension was frozen in 0.54-ml French straws. Post-thaw sperm total motility (%), progressive motility (%), rapid velocity (%), average path velocity (μm/s), straightline velocity (μm/s), curvilinear velocity (μm/s), linearity (%), plasma membrane and acrosome integrities (%) were higher (p 
      PubDate: 2017-02-22T03:05:47.412992-05:
      DOI: 10.1111/and.12794
       
  • Antioxidant treatment ameliorates diabetes-induced dysfunction of the vas
           deferens in a rat model
    • Authors: P. Tsounapi; M. Honda, F. Dimitriadis, S. Shimizu, T. Shiomi, K. Hikita, M. Saito, S. Tomita, N. Sofikitis, A. Takenaka
      Abstract: Diabetes mellitus (DM) affects the male ejaculatory function. This study was designed to evaluate the role of oxidative stress in the development of diabetes-induced dysfunction of vas deferens (VD) in the rat. DM was induced by streptozotocin in 40 male Wistar rats. Subsequently, the diabetic animals were divided into three groups: DM group, DM + Eda group and DM + Tau group. These groups were administered saline, edaravone and taurine, respectively, daily for 4 weeks. Another group of ten rats served as a control group. DM was diagnosed in the 40 streptozotocin-injected rats. DM significantly reduced the VD weight. Additionally, DM induced in vitro VD hypercontractility, VD histological abnormalities and increased the serum and VD tissue concentration of malondialdehyde. VD immunohistochemistry revealed overexpression of three markers of oxidative stress. DM significantly reduced serum testosterone levels. No live birth was documented in all DM rats in mating experiments. Antioxidants significantly improved all the aforementioned parameters, except the testosterone levels. This study indicates a deleterious impact of DM-induced oxidative stress on VD histological and functional features. Antioxidant treatment may provide an adjunct tool to alleviate ejaculatory disorders for male patients with type 1 diabetes.
      PubDate: 2017-02-22T03:05:44.863397-05:
      DOI: 10.1111/and.12795
       
  • Nucleotide composition and codon usage bias of SRY gene
    • Authors: M. N. Choudhury; A. Uddin, S. Chakraborty
      Abstract: The SRY gene is present within the sex-determining region of the Y chromosome which is responsible for maleness in mammals. The nonuniform usage of synonymous codons in the mRNA transcript for encoding a particular amino acid is the codon usage bias (CUB). Analysis of codon usage pattern is important to understand the genetic and molecular organisation of a gene. It also helps in heterologous gene expression, design of primer and synthetic gene. However, the analysis of codon usage bias of SRY gene was not yet studied. We have used bioinformatic tools to analyse codon usage bias of SRY gene across mammals. Codon bias index (CBI) indicated that the overall extent of codon usage bias was weak. The relative synonymous codon usage (RSCU) analysis suggested that most frequently used codons had an A or C at the third codon position. Compositional constraint played an important role in codon usage pattern as evident from correspondence analysis (CA). Significant correlation among nucleotides constraints indicated that both mutation pressure and natural selection affect the codon usage pattern. Neutrality plot suggested that natural selection might play a major role, while mutation pressure might play a minor role in codon usage pattern in SRY gene in different species of mammals.
      PubDate: 2017-01-26T02:42:02.566557-05:
      DOI: 10.1111/and.12787
       
 
 
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