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Publisher: Medknow Publishers   (Total: 429 journals)

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Showing 1 - 200 of 429 Journals sorted alphabetically
Acta Medica Intl.     Open Access   (SJR: 0.101, CiteScore: 0)
Advanced Arab Academy of Audio-Vestibulogy J.     Open Access  
Advanced Biomedical Research     Open Access  
Advances in Human Biology     Open Access   (Followers: 3)
Advances in Skeletal Muscle Function Assessment     Open Access  
African J. for Infertility and Assisted Conception     Open Access  
African J. of Medical and Health Sciences     Open Access   (Followers: 2)
African J. of Paediatric Surgery     Open Access   (Followers: 7, SJR: 0.25, CiteScore: 1)
African J. of Trauma     Open Access   (Followers: 1)
Ain-Shams J. of Anaesthesiology     Open Access   (Followers: 3)
Al-Azhar Assiut Medical J.     Open Access  
Al-Basar Intl. J. of Ophthalmology     Open Access   (Followers: 1)
Alexandria J. of Pediatrics     Open Access  
Ancient Science of Life     Open Access   (Followers: 5)
Anesthesia : Essays and Researches     Open Access   (Followers: 10)
Annals of African Medicine     Open Access   (Followers: 1, SJR: 0.258, CiteScore: 1)
Annals of Bioanthropology     Open Access   (Followers: 4)
Annals of Cardiac Anaesthesia     Open Access   (Followers: 14, SJR: 0.308, CiteScore: 1)
Annals of Indian Academy of Neurology     Open Access   (Followers: 3, SJR: 0.434, CiteScore: 1)
Annals of Indian Academy of Otorhinolaryngology Head and Neck Surgery     Open Access  
Annals of Indian Psychiatry     Open Access  
Annals of Maxillofacial Surgery     Open Access   (Followers: 6)
Annals of Medical and Health Sciences Research     Open Access   (Followers: 7)
Annals of Nigerian Medicine     Open Access   (Followers: 1)
Annals of Pediatric Cardiology     Open Access   (Followers: 8, SJR: 0.352, CiteScore: 1)
Annals of Saudi Medicine     Open Access   (SJR: 0.238, CiteScore: 1)
Annals of Thoracic Medicine     Open Access   (Followers: 6, SJR: 0.524, CiteScore: 1)
Annals of Tropical Medicine and Public Health     Open Access   (Followers: 13, SJR: 0.152, CiteScore: 0)
Annals of Tropical Pathology     Open Access  
Apollo Medicine     Open Access  
APOS Trends in Orthodontics     Open Access  
Arab J. of Interventional Radiology     Open Access  
Archives of Cardiovascular Imaging     Open Access   (Followers: 1, SJR: 0.187, CiteScore: 0)
Archives of Intl. Surgery     Open Access   (Followers: 10, SJR: 0.302, CiteScore: 1)
Archives of Medicine and Health Sciences     Open Access   (Followers: 3)
Archives of Medicine and Surgery     Open Access  
Archives of Pharmacy Practice     Open Access   (Followers: 6, SJR: 0.102, CiteScore: 0)
Archives of Trauma Research     Open Access   (Followers: 3, SJR: 0.37, CiteScore: 2)
Asia Pacific J. of Clinical Trials : Nervous System Diseases     Open Access  
Asia-Pacific J. of Oncology Nursing     Open Access   (Followers: 4)
Asian J. of Andrology     Open Access   (Followers: 1, SJR: 0.856, CiteScore: 2)
Asian J. of Neurosurgery     Open Access   (Followers: 2)
Asian J. of Oncology     Open Access   (Followers: 1)
Asian J. of Transfusion Science     Open Access   (Followers: 1, SJR: 0.35, CiteScore: 1)
Asian Pacific J. of Reproduction     Open Access   (SJR: 0.227, CiteScore: 1)
Asian Pacific J. of Tropical Biomedicine     Open Access   (Followers: 2, SJR: 0.491, CiteScore: 2)
Asian Pacific J. of Tropical Medicine     Open Access   (Followers: 1, SJR: 0.561, CiteScore: 2)
Astrocyte     Open Access  
Avicenna J. of Medicine     Open Access   (Followers: 1)
AYU : An international quarterly journal of research in Ayurveda     Open Access   (Followers: 6)
Benha Medical J.     Open Access  
Biomedical and Biotechnology Research J.     Open Access  
BLDE University J. of Health Sciences     Open Access  
Brain Circulation     Open Access  
Bulletin of Faculty of Physical Therapy     Open Access   (Followers: 1)
Canadian J. of Rural Medicine     Full-text available via subscription   (SJR: 0.202, CiteScore: 0)
Cancer Translational Medicine     Open Access   (Followers: 2)
Cardiology Plus     Open Access  
Chinese Medical J.     Open Access   (Followers: 10, SJR: 0.52, CiteScore: 1)
CHRISMED J. of Health and Research     Open Access  
Clinical Cancer Investigation J.     Open Access  
Clinical Dermatology Review     Open Access   (Followers: 2)
Clinical Trials in Degenerative Diseases     Open Access  
Clinical Trials in Orthopedic Disorders     Open Access  
Community Acquired Infection     Open Access  
Conservation and Society     Open Access   (Followers: 10, SJR: 0.811, CiteScore: 2)
Contemporary Clinical Dentistry     Open Access   (Followers: 4, SJR: 0.353, CiteScore: 1)
Current Medical Issues     Open Access   (Followers: 1)
CytoJ.     Open Access   (Followers: 2, SJR: 0.543, CiteScore: 1)
Delta J. of Ophthalmology     Open Access  
Dental Hypotheses     Open Access   (Followers: 3, SJR: 0.152, CiteScore: 0)
Dental Research J.     Open Access   (Followers: 11, SJR: 0.416, CiteScore: 1)
Dentistry and Medical Research     Open Access  
Digital Medicine     Open Access  
Drug Development and Therapeutics     Open Access  
Education for Health     Open Access   (Followers: 6, SJR: 0.242, CiteScore: 0)
Egyptian J. of Bronchology     Open Access  
Egyptian J. of Cardiothoracic Anesthesia     Open Access  
Egyptian J. of Cataract and Refractive Surgery     Open Access   (Followers: 1, SJR: 1.799, CiteScore: 2)
Egyptian J. of Chest Diseases and Tuberculosis     Open Access   (Followers: 3, SJR: 0.155, CiteScore: 0)
Egyptian J. of Dermatology and Venerology     Open Access   (Followers: 1)
Egyptian J. of Haematology     Open Access   (Followers: 1)
Egyptian J. of Internal Medicine     Open Access   (Followers: 1)
Egyptian J. of Neurology, Psychiatry and Neurosurgery     Open Access   (Followers: 1, SJR: 0.127, CiteScore: 0)
Egyptian J. of Obesity, Diabetes and Endocrinology     Open Access   (Followers: 1)
Egyptian J. of Otolaryngology     Open Access   (Followers: 2)
Egyptian J. of Psychiatry     Open Access   (Followers: 2)
Egyptian J. of Surgery     Open Access   (Followers: 1)
Egyptian Nursing J.     Open Access  
Egyptian Orthopaedic J.     Open Access   (Followers: 2)
Egyptian Pharmaceutical J.     Open Access  
Egyptian Retina J.     Open Access  
Egyptian Rheumatology and Rehabilitation     Open Access  
Endodontology     Open Access  
Endoscopic Ultrasound     Open Access   (SJR: 0.822, CiteScore: 2)
Environmental Disease     Open Access   (Followers: 3)
Eurasian J. of Pulmonology     Open Access  
European J. of Dentistry     Open Access   (Followers: 2, SJR: 0.749, CiteScore: 2)
European J. of General Dentistry     Open Access   (Followers: 1, SJR: 0.12, CiteScore: 0)
European J. of Prosthodontics     Open Access   (Followers: 3)
European J. of Psychology and Educational Studies     Open Access   (Followers: 11, SJR: 0.113, CiteScore: 0)
Fertility Science and Research     Open Access  
Formosan J. of Surgery     Open Access   (SJR: 0.112, CiteScore: 0)
Genome Integrity     Open Access   (Followers: 3, SJR: 0.153, CiteScore: 0)
Glioma     Open Access  
Global J. of Transfusion Medicine     Open Access   (Followers: 1)
Gynecology and Minimally Invasive Therapy     Open Access   (SJR: 0.311, CiteScore: 1)
Hamdan Medical J.     Open Access  
Heart and Mind     Open Access  
Heart India     Open Access   (Followers: 1)
Heart Views     Open Access   (Followers: 2)
Hepatitis B Annual     Open Access   (Followers: 3)
Ibnosina J. of Medicine and Biomedical Sciences     Open Access  
IJS Short Reports     Open Access  
Imam J. of Applied Sciences     Open Access  
Indian Anaesthetists Forum     Open Access  
Indian Dermatology Online J.     Open Access   (Followers: 3)
Indian J. of Allergy, Asthma and Immunology     Open Access   (Followers: 1)
Indian J. of Anaesthesia     Open Access   (Followers: 7, SJR: 0.478, CiteScore: 1)
Indian J. of Burns     Open Access   (Followers: 1)
Indian J. of Cancer     Open Access   (Followers: 1, SJR: 0.361, CiteScore: 1)
Indian J. of Cerebral Palsy     Open Access   (Followers: 1)
Indian J. of Community Medicine     Open Access   (Followers: 2, SJR: 0.37, CiteScore: 1)
Indian J. of Critical Care Medicine     Open Access   (Followers: 3, SJR: 0.604, CiteScore: 1)
Indian J. of Dental Research     Open Access   (Followers: 4, SJR: 0.266, CiteScore: 1)
Indian J. of Dental Sciences     Open Access  
Indian J. of Dentistry     Open Access   (Followers: 1)
Indian J. of Dermatology     Open Access   (Followers: 2, SJR: 0.468, CiteScore: 1)
Indian J. of Dermatology, Venereology and Leprology     Open Access   (Followers: 5, SJR: 0.445, CiteScore: 1)
Indian J. of Dermatopathology and Diagnostic Dermatology     Open Access  
Indian J. of Drugs in Dermatology     Open Access   (Followers: 1, SJR: 0.791, CiteScore: 1)
Indian J. of Endocrinology and Metabolism     Open Access   (Followers: 4, SJR: 0.568, CiteScore: 1)
Indian J. of Health Sciences     Open Access   (Followers: 2)
Indian J. of Medical and Paediatric Oncology     Open Access   (SJR: 0.425, CiteScore: 1)
Indian J. of Medical Microbiology     Open Access   (Followers: 1, SJR: 0.503, CiteScore: 1)
Indian J. of Medical Research     Open Access   (Followers: 4, SJR: 0.656, CiteScore: 1)
Indian J. of Medical Sciences     Open Access   (Followers: 2, SJR: 0.102, CiteScore: 0)
Indian J. of Multidisciplinary Dentistry     Open Access   (Followers: 1)
Indian J. of Nephrology     Open Access   (Followers: 2, SJR: 0.347, CiteScore: 1)
Indian J. of Nuclear Medicine     Open Access   (Followers: 2, SJR: 0.23, CiteScore: 0)
Indian J. of Occupational and Environmental Medicine     Open Access   (Followers: 3, SJR: 0.225, CiteScore: 1)
Indian J. of Ophthalmology     Open Access   (Followers: 4, SJR: 0.498, CiteScore: 1)
Indian J. of Oral Health and Research     Open Access  
Indian J. of Oral Sciences     Open Access   (Followers: 1)
Indian J. of Orthopaedics     Open Access   (Followers: 8, SJR: 0.392, CiteScore: 1)
Indian J. of Otology     Open Access   (Followers: 1, SJR: 0.199, CiteScore: 0)
Indian J. of Paediatric Dermatology     Open Access   (Followers: 2)
Indian J. of Pain     Open Access   (Followers: 1)
Indian J. of Palliative Care     Open Access   (Followers: 5, SJR: 0.454, CiteScore: 1)
Indian J. of Pathology and Microbiology     Open Access   (Followers: 2, SJR: 0.276, CiteScore: 1)
Indian J. of Pharmacology     Open Access   (SJR: 0.412, CiteScore: 1)
Indian J. of Plastic Surgery     Open Access   (Followers: 12, SJR: 0.311, CiteScore: 0)
Indian J. of Psychiatry     Open Access   (Followers: 3, SJR: 0.408, CiteScore: 1)
Indian J. of Psychological Medicine     Open Access   (SJR: 0.368, CiteScore: 1)
Indian J. of Public Health     Open Access   (Followers: 1)
Indian J. of Radiology and Imaging     Open Access   (Followers: 4)
Indian J. of Research in Homoeopathy     Open Access  
Indian J. of Respiratory Care     Open Access  
Indian J. of Rheumatology     Open Access   (SJR: 0.119, CiteScore: 0)
Indian J. of Sexually Transmitted Diseases and AIDS     Open Access   (Followers: 2, SJR: 0.34, CiteScore: 0)
Indian J. of Social Psychiatry     Open Access   (Followers: 2)
Indian J. of Transplantation     Open Access  
Indian J. of Urology     Open Access   (Followers: 3, SJR: 0.434, CiteScore: 1)
Indian J. of Vascular and Endovascular Surgery     Open Access   (Followers: 2)
Indian Spine J.     Open Access  
Industrial Psychiatry J.     Open Access   (Followers: 2)
Intervention     Open Access   (Followers: 1)
Intl. Archives of Health Sciences     Open Access  
Intl. J. of Abdominal Wall and Hernia Surgery     Open Access   (Followers: 1)
Intl. J. of Academic Medicine     Open Access  
Intl. J. of Advanced Medical and Health Research     Open Access  
Intl. J. of Applied and Basic Medical Research     Open Access  
Intl. J. of Clinical and Experimental Physiology     Open Access   (Followers: 1)
Intl. J. of Clinicopathological Correlation     Open Access  
Intl. J. of Community Dentistry     Open Access  
Intl. J. of Critical Illness and Injury Science     Open Access   (Followers: 1, SJR: 0.192, CiteScore: 0)
Intl. J. of Educational and Psychological Researches     Open Access   (Followers: 4)
Intl. J. of Environmental Health Engineering     Open Access   (Followers: 1)
Intl. J. of Forensic Odontology     Open Access   (Followers: 1)
Intl. J. of Green Pharmacy     Open Access   (Followers: 3, SJR: 0.142, CiteScore: 0)
Intl. J. of Growth Factors and Stem Cells in Dentistry     Open Access  
Intl. J. of Health & Allied Sciences     Open Access   (Followers: 3)
Intl. J. of Health System and Disaster Management     Open Access   (Followers: 3)
Intl. J. of Heart Rhythm     Open Access  
Intl. J. of Medicine and Public Health     Open Access   (Followers: 6)
Intl. J. of Mycobacteriology     Open Access   (SJR: 0.535, CiteScore: 1)
Intl. J. of Noncommunicable Diseases     Open Access  
Intl. J. of Nutrition, Pharmacology, Neurological Diseases     Open Access   (Followers: 4, SJR: 0.17, CiteScore: 0)
Intl. J. of Oral Health Sciences     Open Access   (Followers: 2)
Intl. J. of Orofacial Biology     Open Access   (Followers: 1)
Intl. J. of Orofacial Research     Open Access   (Followers: 1)
Intl. J. of Orthodontic Rehabilitation     Open Access  
Intl. J. of Pedodontic Rehabilitation     Open Access  
Intl. J. of Pharmaceutical Investigation     Open Access   (Followers: 1)
Intl. J. of Preventive Medicine     Open Access   (Followers: 1, SJR: 0.623, CiteScore: 1)
Intl. J. of Shoulder Surgery     Open Access   (Followers: 5, SJR: 0.653, CiteScore: 1)
Intl. J. of the Cardiovascular Academy     Open Access   (SJR: 0.105, CiteScore: 0)
Intl. J. of Trichology     Open Access   (SJR: 0.4, CiteScore: 1)
Intl. J. of Yoga     Open Access   (Followers: 14)
Intl. J. of Yoga : Philosophy, Psychology and Parapsychology     Open Access   (Followers: 5)

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Journal Cover
Asian Pacific Journal of Reproduction
Journal Prestige (SJR): 0.227
Citation Impact (citeScore): 1
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2305-0500 - ISSN (Online) 2305-0519
Published by Medknow Publishers Homepage  [429 journals]
  • Germline cells derived from mesenchymal stem cells, with the focus on
           Wharton's jelly

    • Authors: Hossein Yazdekhasti, Jalil Hosseini, Zahra Rajabi, Maryam Hosseinzadeh Shirzeyli, Fereshte Aliakbari
      Pages: 49 - 55
      Abstract: Hossein Yazdekhasti, Jalil Hosseini, Zahra Rajabi, Maryam Hosseinzadeh Shirzeyli, Fereshte Aliakbari
      Asian Pacific Journal of Reproduction 2018 7(2):49-55
      Previous attempts have indicated that mesenchymal stem cells (MSCs) are a valuable source and candidate and new approach for tissue engineering and reproductive medicine. MSCs have this potential to be induced and differentiated in an appropriate in vivo and in vitro condition toward various cell lineages and then they can be applied in cell therapies and clinical applications. During recent two decades, various sources have demonstrated they are a great source for MSCs, including bone marrow, the human umbilical cord as well as Wharton's jelly. Due to discarding after birth, easily accessible cells and less ethical concerns, these cells have attracted more and more scientists' attention. Infertility and reproduction diseases have provided special opportunity to examine the efficiency of MSCs in this kind of application. Based on recent investigations, MSCs embedded in Wharton's jelly tissue are more appealing for cell therapies, especially in infertility treatment purposes. So, differentiation of MSCs embedded in Wharton's jelly tissue into germ layer cells for cell-based therapy purposes is now under intensive study.
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):49-55
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228013
      Issue No: Vol. 7, No. 2 (2018)
       
  • Homeostatic relevance of vitamin D in maintaining male fertility in human:
           Down–regulation of oxidative stress and up-regulation of
           anti-oxidative defense and steroidal hormones

    • Authors: Fahad Hussain, Arif Malik, Muhammad Saeed Qureshi, Muhammad Imran, Sulayman Waquar, Hassan Shafique, Zohaib Rana, Hnin Ei Thu, Zahid Hussain
      Pages: 56 - 61
      Abstract: Fahad Hussain, Arif Malik, Muhammad Saeed Qureshi, Muhammad Imran, Sulayman Waquar, Hassan Shafique, Zohaib Rana, Hnin Ei Thu, Zahid Hussain
      Asian Pacific Journal of Reproduction 2018 7(2):56-61
      Objective: To evaluate correlation between the levels of vitamin D and male infertility as well as to determine the efficacy of vitamin D in improving the male fertility by up-regulating the levels of testosterone and spermatogenesis. Methods: In the present study, 130 male patients (aged 25-70 years) having fertility defects were screened and 145 healthy individuals were taken as control. All human subjects were screened for 4-hydroxynonenal, isoprostane-F2α, 8-hydroxy-2'-deoxyguanosine, vitamin D, luteinizing hormone, follicle stimulating hormone, testosterones, malondialdehyde, superoxide dismutase, catalase, glutathione peroxidase, and nitric oxide. Results: The screening analysis revealed that the levels of luteinizing hormone, follicle stimulating hormone, and testosterone were lower in male infertile subjects compared to healthy subjects. Similarly, the levels of vitamin D [(17.17 ± 2.30) ng/mL] and calcium[(6.29 ± 0.31) mg/dL] were significantly lower in infertile groups compared to the normal healthy groups. Moreover, the study revealed that the levels of superoxide dismutase, catalase, and glutathione peroxidase were significantly higher in healthy subjects compared to the infertile subjects. Conclusions: Vitamin D exhibits strong relevance to male fertility by maintaining the levels of sex hormones (luteinizing hormone, follicle stimulating hormone, and testosterone), up-regulating the antioxidant defense (superoxide dismutase, catalase, and glutathione peroxidase), and down-regulating the oxidative stress (malondialdehyde, nitric oxide, and inducible nitric oxide synthase species).
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):56-61
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228014
      Issue No: Vol. 7, No. 2 (2018)
       
  • Effect of voltage-gated sodium channels blockers on motility and viability
           of human sperm in vitro

    • Authors: Hammad Ahmad Gakhar, Ishrat Waheed, Taseer Ahmad, Naeem-ur-rahman
      Pages: 62 - 71
      Abstract: Hammad Ahmad Gakhar, Ishrat Waheed, Taseer Ahmad, Naeem-ur-rahman
      Asian Pacific Journal of Reproduction 2018 7(2):62-71
      Objective: To test the effect of voltage-gated sodium channels (VGSCs) blockers on the motility and viability of human sperm in-vitro and to evaluate the tested compounds as potential contact spermicidal. Methods: Sperm samples were obtained from healthy nonsmoking volunteers of age 25-30 years who had not taken any drug 3 months before and during the course of the study. The effect of VGSCs blockers evaluated from two pharmacological classes including antiarrhythmic (amiodarone, procainamide and disopyramide) and antiepileptic (carbamazepine, oxcarbazepine, phenytoin, and lamotrigine) drugs. They were tested on the in-vitro motility and viability of human sperm using Computer Assisted Semen Analyzer. Results: All tested drugs except oxcarbazepine showed dose dependent inhibition of total motility with significant reduction (P<0.05) at the maximum concentration of 200 μΜ when compared with the control. The concentrations of drugs that reduced total sperm motility to 50% of control (half maximal inhibitory concentration) were 2.76, 14.16 and 20.29 μΜ for phenytoin, lamotrigine and carbamazepine, respectively; and 2.53, 5.32 and 0.37 μΜ for amiodarone, procainamide and disopyramide, respectively. The anti-motility effects were reversible to various degrees. There was statistically insignificant difference in the inhibition of sperm viability among amiodarone, procainamide and disopyramide. Phenytoin demonstrated the most potent spermicidal action. Conclusions: VGSCs blockers have significant adverse effects on in-vitro motility of human spermatozoa. So in-vivo studies are required to determine their potential toxicological effects on human semen quality, which is an important factor regarding fertility. Moreover, these drugs have the potential to be developed into contact spermicidal.
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):62-71
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228015
      Issue No: Vol. 7, No. 2 (2018)
       
  • Improvement in cryosurvival of buffalo bull (Bubalus bubalis) sperm by
           altering freezing rate within critical temperature range

    • Authors: Jasmer Dalal, Ajeet Kumar, Pradeep Kumar, Mrigank Honparkhe, Vijay Singh Malik, Sumit Singhal, Simarjeet Kaur, Parkash Singh Brar
      Pages: 72 - 78
      Abstract: Jasmer Dalal, Ajeet Kumar, Pradeep Kumar, Mrigank Honparkhe, Vijay Singh Malik, Sumit Singhal, Simarjeet Kaur, Parkash Singh Brar
      Asian Pacific Journal of Reproduction 2018 7(2):72-78
      Objective: To optimize the cryopreservation of buffalo bull semen by altering freezing rates within critical temperature range (4 °C to -60 °C). Methods: A total of 20 ejaculates each from 5 Murrah buffalo bulls were cryopreserved using programmable biofreezer in 2 phases. In the 1st phase, 9 freezing rates were applied at -2, -5, -10, -20, -30, -40, -50, -60 or -4 °C/min (control) from 4 °C to -15 °C ; at -40 °C/min from -15 °C to -60 °C. In the 2nd phase, a fixed freezing rate was applied at -30 °C /min from 4 °C to -15 °C. Six freezing rates were applied at -10, -20, -30, -40 (control), -50 or -60 °C/min from -15 °C to -60 °C. The freezing from -60 °C to -140 °C were fixed at -50 °C/min in both the phases. Post thaw semen quality was assessed in terms of motility, viability, membrane integrity (hypo-osmotic swelling test), sperm abnormalities, and active mitochondria. Data were arc sine transformed and analyzed through one-way analysis of variance using SPSS software. Results: In the 1st phase, percent individual motility, progressive motility and viability were similar among various protocols. Percent hypo-osmotic swelling reactive sperm was higher with freezing at -30 °C/min. In the 2nd phase, percent individual motility, viability and hypo-osmotic swelling reactive sperm was higher with freezing at -50 °C /min. Sperm head abnormalities were lower at -30 °C /min in the 1st phase, but were similar among the protocols of the 2nd phase. Percent active mitochondria were higher at -30 °C /min in the 1st phase and at -50 °C/min in the 2nd phase. Conclusions: The optimum post thaw semen quality of buffalo bull could be obtained by applying freezing rate at -30 °C/min (4 °C to -15 °C) and at -50 °C/min (-15 °C to -140 °C ), followed by plunging of straws in into liquid nitrogen for storage.
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):72-78
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228016
      Issue No: Vol. 7, No. 2 (2018)
       
  • Effect of exogenous progesterone on cumulus characteristics of buffalo
           oocytes by allowing passage of more number of sperm through cumulus but
           not essentially fertilization

    • Authors: Madhusmita Panda, Asmita, Sandeep Kumar, Purusottam Mishra, Mahesh Chandra Sahu, Sachinandan De, Tirtha Kumar Datta, Rakesh Kumar
      Pages: 79 - 86
      Abstract: Madhusmita Panda, Asmita , Sandeep Kumar, Purusottam Mishra, Mahesh Chandra Sahu, Sachinandan De, Tirtha Kumar Datta, Rakesh Kumar
      Asian Pacific Journal of Reproduction 2018 7(2):79-86
      Objective: To understand the level of progesterone (P4) in different quality of buffalo cumulus oocyte complexes (COCs) and further to evaluate the effect of exogenous P4 supplementation on maturation and subsequent developmental ability of poor quality brilliant cresyl blue (BCB- ) COCs. Methods: Progesterone secreted by different quality of buffalo oocytes was estimated by enzyme linked immunosorbent assay and the concentration differences were translated into P4 doses to be incorporated in the maturation medium of BCB-ve COCs followed by expression analysis of genes involved in the cumulus expansion, extracellular matrix disintegration and progesterone receptor signalling. In addition, the study also evaluated the effect of exogenous P4 on sperm-cumulus interaction. Results: More than 10-fold up- regulated expression of progesterone receptor in P4 supplemented oocytes signified that P4 might be acting predominantly through this receptor. Also, exogenous P4 supplementation had significant effect on transcatheter arterial chemoembolization protease regulated by P4- progesterone receptor pathway which in turn had an important role in extracellular matrix disintegration. On the contrary, cumulus expansion genes HAS2, TNFAIP6, AREG were not altered upon P4 supplementation. Also, it was observed that P4 addition did facilitate passage of significantly more number of spermatozoa through P4 treated cumulus cells. Further, incorporation of different doses of P4 did not improve significantly the cleavage and blastocyst rates of BCB-ve COCs. Conclusions: Different qualities of buffalo COCs secrete substantially diverse levels of P4, and its supplementation has a role in oocyte maturation via modulation of cumulus characteristics but perhaps not fertilization.
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):79-86
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228017
      Issue No: Vol. 7, No. 2 (2018)
       
  • Sperm counts in Asian men: Reviewing the trend of past 50 years

    • Authors: Pallav Sengupta, Sulagna Dutta, Maiza Binti Tusimin, Tulay Irez, Elzbieta Krajewska-Kulak
      Pages: 87 - 92
      Abstract: Pallav Sengupta, Sulagna Dutta, Maiza Binti Tusimin, Tulay Irez, Elzbieta Krajewska-Kulak
      Asian Pacific Journal of Reproduction 2018 7(2):87-92
      Objective: To reveal the trend in alterations of sperm counts in Asian men over the past 50 years. Methods: This study reviewed all the published reports to unveil the specific pattern of alterations of sperm concentrations in Asian men from 1965 till 2015. The time-related changes in sperm concentration were studied using linear regression analyses. Results: The present study elucidated the trend using the reports from Carlsen et al (1965-1990) and non-Carlsen studies published until 2015, on fertile Asian men. In the reports of Carlsen et al, no overall declining trend in Asian men (r = 0.509, P = 0.760) was observed during this tenure, but non- Carsen reports showed a significant time-dependent decline of sperm concentration (r = -0.754, P = 0.005) in Asian men. This present review also showed a mild time-dependant decline in sperm concentration (-0.44×106/mL/year, 95% CI: -0.65 to -0.23; r = -0.473, P = 0.040) which accounted for an overall 22.17% decrease in past 50 years. Conclusions: This study brings to the forefront that sperm concentration among Asian men follows a mild declining trend over the period of 50 years, and further studies addressing the causes of this decline are required.
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):87-92
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228018
      Issue No: Vol. 7, No. 2 (2018)
       
  • Effect of tris-extender supplemented with various concentrations of
           strawberry (Fragaria spp.) on bull semen preservability

    • Authors: RI El-Sheshtawy, WS El-Nattat
      Pages: 93 - 96
      Abstract: RI El-Sheshtawy, WS El-Nattat
      Asian Pacific Journal of Reproduction 2018 7(2):93-96
      Objective: To evaluate effect of tris-extender supplemented with various concentrations of strawberry (Fragaria spp.) on bull semen preservability. Methods: Pooled bull semen were extended with tris-citrate-fructose egg yolk diluent (control, 0% strawberry) and various concentrations of tris strawberry (TSB) (1%-6%) to achieve 60 million motile spermatozoa per milliliter. Extended semen were subjected to semen freezing protocol. Semen assessment including motility, alive%, abnormality%, intact sperm membrane (hypo-osmotic swelling test) and conception rate were carried out for both chilled and frozen semen. Results: Results showed that sperm motility after chilling was enhanced in groups treated with various concentrations of TSB from 1% to 5% and exhibited higher significance (P<0.000 1) at 6-day post-chilling. In frozen semen, 3%, 4%, 5% and 6% concentrations gave the best significance (P<0.000 1) on sperm motility in comparison with the control. Concentration 1% revealed the highest significance (P<0.000 1) on alive% as compared to the control. Hypo- osmotic swelling test was maintained as the control. Concentration 3% gave the lowest significance (P<0.000 1) considering abnormality%. The conception rate upon using frozen semen in insemination showed higher conception rate in concentrations of 5% and 6% in cattle. Conclusions: It is concluded that 1%-5% concentrations of TSB ameliorate bull semen characteristics after chilling, and 3%-6% concentrations of TSB improve bull semen characteristics after freezing. Higher conception rate exists in 5% and 6% concentration of TSB.
      Citation: Asian Pacific Journal of Reproduction 2018 7(2):93-96
      PubDate: Wed,21 Mar 2018
      DOI: 10.4103/2305-0500.228019
      Issue No: Vol. 7, No. 2 (2018)
       
 
 
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