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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: 47, SJR: 0.547, h-index: 30)
ACEP NOW     Free   (Followers: 1)
Acta Anaesthesiologica Scandinavica     Hybrid Journal   (Followers: 52, SJR: 1.02, h-index: 88)
Acta Archaeologica     Hybrid Journal   (Followers: 164, 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: 35, SJR: 2.518, h-index: 113)
Acta Zoologica     Hybrid Journal   (Followers: 7, SJR: 0.459, h-index: 29)
Acute Medicine & Surgery     Hybrid Journal   (Followers: 4)
Addiction     Hybrid Journal   (Followers: 35, 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: 27, 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: 268, 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: 10)
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: 148, 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: 92, 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: 34, SJR: 1.761, h-index: 77)
American J. of Human Biology     Hybrid Journal   (Followers: 12, 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: 276, SJR: 5.101, h-index: 114)
American J. of Primatology     Hybrid Journal   (Followers: 15, 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: 17, SJR: 2.792, h-index: 140)
American J. on Addictions     Hybrid Journal   (Followers: 9, SJR: 0.843, h-index: 57)
Anaesthesia     Hybrid Journal   (Followers: 139, 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: 18)
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: 220)
Angewandte Chemie Intl. Edition     Hybrid Journal   (Followers: 222, 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: 47, 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: 89, SJR: 0.545, h-index: 15)
Antipode     Hybrid Journal   (Followers: 49, 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: 206, SJR: 1.023, h-index: 64)
Applied Psychology: Health and Well-Being     Hybrid Journal   (Followers: 49, 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: 31, 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: 27, 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: 25, 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: 12, SJR: 0.938, h-index: 57)
Art History     Hybrid Journal   (Followers: 245, SJR: 0.153, h-index: 13)
Arthritis & Rheumatology     Hybrid Journal   (Followers: 52, 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: 319, 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   (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: 2, 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: 7, SJR: 0.482, h-index: 46)
Australian Economic History Review     Hybrid Journal   (Followers: 5, 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: 14, 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: 407, 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: 21, 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: 4, 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: 142, 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: 6, 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: 243, SJR: 2.083, h-index: 125)

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Journal Cover Annals of Human Genetics
  [SJR: 1.191]   [H-I: 67]   [9 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0003-4800 - ISSN (Online) 1469-1809
   Published by John Wiley and Sons Homepage  [1589 journals]
  • The RSPO3 gene as genetic markers for bone mass assessed by quantitative
           ultrasound in a population of young adults
    • Authors: María Correa-Rodríguez; Jacqueline Schmidt Rio-Valle, Blanca Rueda-Medina
      Abstract: Ultrasound bone mass measurement has been postulated as a valuable bone-health assessment tool for primary care. The aim of this study was to analyse the possible relationship between the SPTBN1, RSPO3, CCDC170, DKK1, GPATCH1, and TMEM135 genes, with calcaneal quantitative ultrasound (QUS) in a population of young adults. These genes were first associated with broadband ultrasound attenuation (BUA) in the GEFOS/GENOMOS study. A cross-sectional study was conducted on 575 individuals (mean age 20.41 ± 2.69). Bone mass at the right calcaneus was estimated by QUS. Six single-nucleotide polymorphisms (SNPs) in SPTBN1 (rs11898505), RSPO3 (rs7741021), CCDC170 (rs4869739), DKK1 (rs7902708), TMEM135 (rs597319), and GPATCH1 (rs10416265) were selected as genetic markers based on their previous association with calcaneal QUS. After adjusting for multiple confounding factors, the only significant association with QUS in our population was found for the rs7741021 SNP in the RSPO3 gene (P = 0.006) using the dominant model of inheritance. This suggests the possible implication of the RSPO3 gene in bone mass acquisition during early adulthood.
      PubDate: 2017-12-12T00:46:08.048063-05:
      DOI: 10.1111/ahg.12235
  • Silenced DMBT1 promotes nasal mucosa epithelial cell growth
    • Authors: Xiaoqing Lu; Yaping Xu, Yu Zhao, Qilei Tao, Jian Wu
      Abstract: ObjectiveThe aim of this study was to investigate the role of the deleted in malignant brain tumors 1 (DMBT1) gene in the development of nasal polyps, as well as related mechanisms.MethodsA stable human nasal mucosa epithelial cell (HNEpC) line with low expression of DMBT1 was generated. Three groups were established: a control group (HNEpCs without any treatment), a control short interference RNA (shRNA) group (HNEpCs transfected with an empty vector), and a DMBT1 shRNA group (HNEpCs with silenced DMBT1). Cell viability, apoptosis, and cell cycle distribution were measured after incubation. Expression of p53, signal transducer and activator of transcription 3 (STAT3), protein kinase B (AKT) and extracellular signal-regulated kinase1/2 (ERK1/2) was detected by western blotting.ResultsCompared with the control cell line, HNEpCs with silenced DMBT1 had increased viability and decreased apoptosis. Moreover, after DMBT1 silence, cell numbers were decreased significantly in the G1 phase and increased in the G2 and S phases. DMBT1 silence was associated with increased AKT expression and decreased p53 expression, but it did not alter expression of ERK1/2 or STAT3 (P > 0.05). Compared with the control cell line, HNEpCs transfected with an empty vector did not have altered cell viability, apoptosis, cell cycle distribution or expression of AKT, p53, ERK1/2, or STAT3 (P > 0.05).ConclusionDMBT1 plays an important role in the growth and division of nasal epithelial cells. The possible mechanism might involve DMBT1 regulating the AKT–p53 pathway to promote cell viability and reduce apoptosis of nasal epithelial cells.
      PubDate: 2017-11-17T06:56:58.151068-05:
      DOI: 10.1111/ahg.12230
  • Recurrence of reported CDH23 mutations causing DFNB12 in a special cohort
           of South Indian hearing impaired assortative mating families – an
    • Authors: Paridhy Vanniya S; Jayasankaran Chandru, Amritkumar Pavithra, Justin Margret Jeffrey, Murugesan Kalaimathi, Rajagopalan Ramakrishnan, Natarajan P. Karthikeyen, Srisailapathy C. R. Srikumari
      Abstract: Mutations in CDH23 are known to cause autosomal-recessive nonsyndromic hearing loss (DFNB12). Until now, there was only one study describing its frequency in Indian population. We screened for CDH23 mutations to identify prevalent and recurring mutations among South Indian assortative mating hearing-impaired individuals who were identified as non-DFNB1 (GJB2 and GJB6). Whole-exome sequencing was performed in individuals found to be heterozygous for CDH23 to determine whether there was a second pathogenic allele. In our study, 19 variants including 6 pathogenic missense mutations were identified. The allelic frequency of pathogenic mutations accounts to 4.7% in our cohort, which is higher than that reported previously; three mutations (c.429+4G>A, c.2968G>A, and c.5660C>T) reported in the previous Indian study were found to recur. DFNB12 was found to be the etiology in 3.4% of our cohort, with missense mutation c.2968G>A (p.Asp990Asn) being the most prevalent (2.6%). These results suggest a need to investigate the possibility for higher proportion of CDH23 mutations in the South Indian hearing-impaired population.
      PubDate: 2017-11-17T06:56:40.407811-05:
      DOI: 10.1111/ahg.12228
  • Exome sequence analysis and follow up genotyping implicates rare ULK1
           variants to be involved in susceptibility to schizophrenia
    • Authors: Mariam M. Al Eissa; Alessia Fiorentino, Sally I. Sharp, Niamh L. O'Brien, Kate Wolfe, Giovanni Giaroli, David Curtis, Nicholas J. Bass, Andrew McQuillin
      Abstract: Schizophrenia (SCZ) is a severe, highly heritable psychiatric disorder. Elucidation of the genetic architecture of the disorder will facilitate greater understanding of the altered underlying neurobiological mechanisms. The aim of this study was to identify likely aetiological variants in subjects affected with SCZ.Exome sequence data from a SCZ cas–control sample from Sweden was analysed for likely aetiological variants using a weighted burden test. Suggestive evidence implicated the UNC-51-like kinase (ULK1) gene, and it was observed that four rare variants that were more common in the Swedish SCZ cases were also more common in UK10K SCZ cases, as compared to obesity cases. These three missense variants and one intronic variant were genotyped in the University College London cohort of 1304 SCZ cases and 1348 ethnically matched controls.All four variants were more common in the SCZ cases than controls and combining them produced a result significant at P = 0.02.The results presented here demonstrate the importance of following up exome sequencing studies using additional datasets. The roles of ULK1 in autophagy and mTOR signalling strengthen the case that these pathways may be important in the pathophysiology of SCZ. The findings reported here await independent replication.
      PubDate: 2017-11-17T06:55:36.631003-05:
      DOI: 10.1111/ahg.12226
  • A 3′ untranslated region polymorphism rs2304277 in the DNA repair
           pathway gene OGG1 is a novel risk modulator for urothelial bladder
    • Authors: Tayyaba Ahmed; Saira Nawaz, Rabia Noreen, Kashif Sardar Bangash, Abdur Rauf, Muhammad Younis, Khursheed Anwar, Muhammad Athar Khawaja, Maleeha Azam, Abid Ali Qureshi, Saeed Akhter, Lambertus A. Kiemeney, Raheel Qamar, Syeda Hafiza benish Ali
      Abstract: Altered DNA repair capacity may affect an individual's susceptibility to cancers due to compromised genomic integrity. This study was designed to elucidate the association of selected polymorphisms in DNA repair genes with urothelial bladder carcinoma (UBC). OGG1 rs1052133 and rs2304277, XRCC1 rs1799782 and rs25487, XRCC3 rs861539, XPC rs2228001, and XPD rs13181 were genotyped using polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) in 200 UBC cases and 200 controls.We found association of OGG1 rs2304277 [odds ratio (OR)GG = 3.55, 95% confidence interval (CI) = 1.79–7.06] and XPC rs2228001 (ORAC = 2.38, 95% CI = 1.43–3.94) with UBC. In stratified analysis with respect to smoking status, OGG1 rs2304277 and XPC rs2228001 exhibited increased risk in smokers [(rs2304277 ORGG = 4.96, 95% CI = 1.51–16.30) (rs2228001 ORAC = 2.19, 95% CI = 1.02–4.72)] as well as nonsmokers [(rs2304277 ORGG = 2.95, 95% CI = 1.26–6.90) (rs2228001 ORAC = 2.57, 95% CI = 1.31–5.04)]. These polymorphisms were also associated with both low-grade [(rs2304277 ORGG = 3.73, 95% CI = 1.72–8.09) (rs2228001 ORAC = 2.18, 95% CI = 1.21–3.92)] and high-grade tumors [(rs2304277 ORGG = 3.45, 95% CI = 1.52–7.80) (rs2228001 ORAC = 2.81, 95% CI = 1.48–5.33)] as well as with non–muscle-invasive bladder cancer [(rs2304277 ORGG = 4.03, 95% CI = 1.87–8.67) (rs2228001 ORAC = 2.14, 95% CI = 1.20–3.81)] and muscle-invasive bladder cancer [(rs2304277 ORGG = 3.06, 95%CI = 1.31–7.13) (rs2228001 ORAC = 2.95, 95%CI = 1.51–5.75)]. This is the first study on DNA repair gene polymorphisms and UBC in the Pakistani population. It identifies OGG1 rs2304277 and replicates XPC rs2228001 as significant modulators of UBC susceptibility.
      PubDate: 2017-11-15T02:11:02.403769-05:
      DOI: 10.1111/ahg.12225
  • Parent-of-origin-environment interactions in case-parent triads with or
           without independent controls
    • Authors: Miriam Gjerdevik; Øystein A. Haaland, Julia Romanowska, Rolv T. Lie, Astanand Jugessur, Håkon K. Gjessing
      Abstract: With case–parent triad data, one can frequently deduce parent of origin of the child's alleles. This allows a parent-of-origin (PoO) effect to be estimated as the ratio of relative risks associated with the alleles inherited from the mother and the father, respectively. A possible cause of PoO effects is DNA methylation, leading to genomic imprinting. Because environmental exposures may influence methylation patterns, gene–environment interaction studies should be extended to allow for interactions between PoO effects and environmental exposures (i.e., PoOxE). One should thus search for loci where the environmental exposure modifies the PoO effect.We have developed an extensive framework to analyze PoOxE effects in genome-wide association studies (GWAS), based on complete or incomplete case–parent triads with or without independent control triads. The interaction approach is based on analyzing triads in each exposure stratum using maximum likelihood estimation in a log-linear model. Interactions are then tested applying a Wald-based posttest of parameters across strata. Our framework includes a complete setup for power calculations. We have implemented the models in the R software package Haplin.To illustrate our PoOxE test, we applied the new methodology to top hits from our previous GWAS, assessing whether smoking during the periconceptional period modifies PoO effects on cleft palate only.
      PubDate: 2017-11-02T04:51:04.558567-05:
      DOI: 10.1111/ahg.12224
  • The MOSAICC study: Assessing feasibility for biological sample collection
           in epidemiology studies and comparison of DNA yields from saliva and whole
           blood samples
    • Authors: Glen James; Mary Frances McMullin, Andrew S Duncombe, Mike Clarke, Lesley A Anderson
      Abstract: Biological sample collection is becoming more common in epidemiology research to obtain DNA for genetic analysis. There are many different DNA collection methods but little evidence on their relative effectiveness. Therefore, we took the opportunity of a prospective case-control study in myeloproliferative neoplasms (MPNs) to compare DNA yield from 8.5 mL PAXgene tubes for whole blood collection versus 2 mL Oragene OG-500 saliva collection kits. MPNs include polycythaemia vera, essential thrombocythaemia, and primary myelofibrosis. These are rare diseases and our exploratory case–control study (MOSAICC) sought to improve knowledge regarding their aetiology and to determine optimal methodology for a larger UK-wide study. Overall, 233 participants were recruited to the MOSIACC study, and we collected 187 blood and 214 saliva samples. The mean DNA yield from blood was 659.18 ng/μL, significantly higher than the mean DNA yield from saliva samples (275.79 ng/μL). The higher provision of saliva samples might reflect its non-invasive and more convenient nature, compared to blood sample provision. The differences in mean DNA yields might reflect differences in clinical assistance, adherence to instructions, and health status of individuals. In conclusion, both sample collection techniques are simple, effective, and suitable for DNA collection for genetic analysis in future epidemiological research studies but OG-500 kits offer a less invasive alternative for those who refuse to provide blood.
      PubDate: 2017-10-27T02:17:25.659942-05:
      DOI: 10.1111/ahg.12227
  • Influence of Apolipoprotein E polymorphism on susceptibility of Wilson
    • Authors: Shubhrajit Roy; Kausik Ganguly, Prosenjit Pal, Sampurna Ghosh, Shyamal K Das, Prasanta K. Gangopadhyay, Ashish Bavdekar, Kunal Ray, Mainak Sengupta, Jharna Ray
      Abstract: Wilson disease (WD) is an autosomal-recessive disorder caused by mutations in the ATP7B gene leading to abnormal copper deposition in liver and brain. WD manifests diverse neurological and hepatic phenotypes and different age of onset, even among the siblings, with same mutational background suggesting complex nature of the disease and involvement of other candidate genes. In that context, Apolipoprotein E (APOE) and Prion Protein (PRNP) have been proposed to be potential candidates for modifying the WD phenotype and age of onset. This study aims to identify the contribution of APOE and PRNP polymorphisms on the variable phenotypic expression of Indian WD patients.A total of 171 WD patients and 291 controls from Indian population were included in this study. Two APOE cSNPs (rs429358 and rs7412) resulting in three isoforms and M129V (rs1799990) polymorphism of PRNP were examined for their association with WD and its clinical phenotypes.The APOE ԑ4 allele was found to be significantly overrepresented in WD patients compared to controls. However, the frequency of the APOE ԑ3 allele and ԑ3/ԑ3 genotype was significantly higher in WD patients without cognitive behavior impairment compared to the ones with the impairment. On the contrary, the PRNP allele representing Val129 was found to be present in higher proportion in WD patients with cognitive behavioral decline. Our data suggest that the APOE ԑ4 allele could act as a potential risk for the pathogenesis of WD. Also, APOE and PRNP might contribute toward the cognitive behavioral decline in a section of WD patients.
      PubDate: 2017-10-23T11:05:25.333066-05:
      DOI: 10.1111/ahg.12223
  • How many cases of disease in a pedigree imply familial disease'
    • Authors: Frank Dudbridge; Suzanne J. Brown, Lynley Ward, Scott G. Wilson, John P. Walsh
      Abstract: The ability to perform whole-exome and, increasingly, whole-genome sequencing on large numbers of individuals has led to increased efforts to identify rare genetic variants that affect the risk of both common and rare diseases. In such applications, it is important to identify families that are segregating the rare variants of interest. For rare diseases or rare familial forms of common diseases, pedigrees with multiple affected members are clearly harbouring risk variants. For more common diseases, however, it may be unclear whether a family with a few affected members is segregating a familial disease, is the result of multiple sporadic cases, or is a mixture of familial cases and phenocopies. We provide calculations for the probability that a family is harbouring familial disease, presented in general terms that admit working guidelines for selecting families for current sequencing studies. Using examples motivated by our own studies of thyroid cancer and published studies of colorectal cancer, we show that for common diseases, families with exactly two affected first-degree relatives have only a moderate probability of segregating familial disease, but this probability is higher for families with three or more affected relatives, and those families should therefore be prioritised in sequencing studies.
      PubDate: 2017-10-23T06:10:25.66404-05:0
      DOI: 10.1111/ahg.12222
  • Exome Sequencing Identifies a Novel Nonsense Mutation of MYO6 as the Cause
           of Deafness in a Brazilian Family
    • Authors: Juliana Sampaio-Silva; Ana Carla Batissoco, Rafaela Jesus-Santos, Osório Abath-Neto, Luciano Cesar Scarpelli, Patricia Yoshie Nishimura, Layla Testa Galindo, Ricardo Ferreira Bento, Jeanne Oiticica, Karina Lezirovitz
      Abstract: We investigated 313 unrelated subjects who presented with hearing loss to identify the novel genetic causes of this condition in Brazil. Causative GJB2/GJB6 mutations were found in 12.7% of the patients. Among the familial cases (100/313), four were selected for exome sequencing. In one case, two novel heterozygous variants were found and were predicted to be pathogenic based on bioinformatics tools, that is, p.Ser906* (MYO6) and p.Arg42Cys (GJB3). We confirmed that this nonsense MYO6 mutation segregated with deafness in this family. Only the proband and her unaffected mother exhibited the GJB3 mutation, which is in the same amino acid of a known Erythrokeratodermia variabilis mutation. None of the patients exhibited this skin disease, but the proband exhibited a more severe hearing loss. Hence, the GJB3 mutation was considered to be a variant of uncertain significance. In conclusion, we described a novel nonsense MYO6 mutation that was responsible for the hearing loss in a Brazilian family. This mutation resides in the neck domain of myosin-VI after the motor domain. Thus, our data give further support for genotype-phenotype correlations, which state that when the motor domain of the protein is functioning, the hearing loss is milder and has a later onset. The three remaining families without mutations in the known genes suggest that there are still deafness genes to be revealed.
      PubDate: 2017-10-17T04:42:04.077401-05:
      DOI: 10.1111/ahg.12213
  • Choledochal Cyst with 17q12 Chromosomal Duplication
    • Authors: Radana Kotalova; Petra Dusatkova, Jana Drabova, Lenka Elblova, Tomas Dedic, Ondrej Cinek, Jan Lebl, Stepanka Pruhova
      Abstract: The 17q12 chromosomal region carries the HNF1B gene, mutations of which cause various conditions. When searching for HNF1B/17q12 rearrangements among children with biliary atresia and/or choledochal cysts, we identified a male proband carrying a 17q12 duplication spanning 1698 kb that included 24 genes from TBC1D3C to HNF1B. The boy presented with cholestatic jaundice at the age of 2 weeks due to a choledochal cyst sized 15 ×12 mm (type Ia according to the Todani classification). He underwent a shunt surgery consisting of a hepaticojejunostomy using Roux-en-Y loop at the age of 2 months, which led to a permanent relief of cholestasis. Perioperative liver histology revealed significant hepatic fibrosis and bile ductular proliferation. At 17 years, he has a mildly enlarged liver with decreased elasticity, an upper-normal–sized spleen, normal biochemistry values, and no renal or hepatic cysts. We report the first hepatobiliary phenotype in a patient with an HNF1B overdosage.
      PubDate: 2017-09-22T05:05:59.229467-05:
      DOI: 10.1111/ahg.12221
  • Single-center experience of N-linked Congenital Disorders of Glycosylation
           with a Summary of Molecularly Characterized Cases in Arabs
    • Authors: Fatma Bastaki; Sami Bizzari, Sana Hamici, Pratibha Nair, Madiha Mohamed, Fatima Saif, Ethar Mustafa Malik, Mahmoud Taleb Al-Ali, Abdul Rezzak Hamzeh
      Abstract: Congenital disorders of glycosylation (CDG) represent an expanding group of conditions that result from defects in protein and lipid glycosylation. Different subgroups of CDG display considerable clinical and genetic heterogeneity due to the highly complex nature of cellular glycosylation. This is further complicated by ethno-geographic differences in the mutational landscape of each of these subgroups. Ten Arab CDG patients from Latifa Hospital in Dubai, United Arab Emirates, were assessed using biochemical (glycosylation status of transferrin) and molecular approaches (next-generation sequencing [NGS] and Sanger sequencing). In silico tools including CADD and PolyPhen-2 were used to predict the functional consequences of uncovered mutations. In our sample of patients, five novel mutations were uncovered in the genes: MPDU1, PMM2, MAN1B1, and RFT1. In total, 9 mutations were harbored by the 10 patients in 7 genes. These are missense and nonsense mutations with deleterious functional consequences. This article integrates a single-center experience within a list of reported CDG mutations in the Arab world, accompanied by full molecular and clinical details pertaining to the studied cases. It also sheds light on potential ethnic differences that were not noted before in regards to CDG in the Arab world.
      PubDate: 2017-09-21T23:40:37.438416-05:
      DOI: 10.1111/ahg.12220
  • Construction of an Exome-Wide Risk Score for Schizophrenia Based on a
           Weighted Burden Test
    • Authors: David Curtis
      Abstract: Polygenic risk scores obtained as a weighted sum of associated variants can be used to explore association in additional data sets and to assign risk scores to individuals. The methods used to derive polygenic risk scores from common SNPs are not suitable for variants detected in whole exome sequencing studies. Rare variants, which may have major effects, are seen too infrequently to judge whether they are associated and may not be shared between training and test subjects. A method is proposed whereby variants are weighted according to their frequency, their annotations and the genes they affect. A weighted sum across all variants provides an individual risk score. Scores constructed in this way are used in a weighted burden test and are shown to be significantly different between schizophrenia cases and controls using a five-way cross-validation procedure. This approach represents a first attempt to summarise exome sequence variation into a summary risk score, which could be combined with risk scores from common variants and from environmental factors. It is hoped that the method could be developed further.
      PubDate: 2017-09-11T23:51:03.916618-05:
      DOI: 10.1111/ahg.12212
  • Evaluation of CCAAT/Enhancer Binding Protein (C/EBP) Alpha (CEBPA) and
           Runt-Related Transcription Factor 1 (RUNX1) Expression in Patients with De
           Novo Acute Myeloid Leukemia
    • Authors: Fatemeh Salarpour; Kourosh Goudarzipour, Mohammad Hossein Mohammadi, Ahmad Ahmadzadeh, Sara Faraahi, Mehdi Allahbakhshian Farsani
      Abstract: The CCAAT/enhancer binding protein (C/EBP) alpha (CEBPA) and Runt-related transcription factor 1 (RUNX1) genes have been traditionally regarded as two essential genes involved in normal myeloid maturation. Although the link between mutations in these genes and the development of acute myeloid leukemia (AML) has been extensively documented, the ramifications of gene expression dysregulations of CEBPA and RUNX1 has drawn less attention. The present study investigated CEBPA and RUNX1 gene expression levels in 96 primary AML specimens against a normal control group by way of real-time RT-PCR. Our results reveal that CEBPA and RUNX1 gene expression levels were unexpectedly and significantly higher in patients with AML when compared to the levels detected in the normal control group (P < 0.0001). Furthermore, the correlation between CEBPA and RUNX1 was significant and positive (P-value: 0.011, r: 0.257).Our data contradicts the widely established role of CEBPA and RUNX1 in myeloid differentiation, as we saw lower levels of CEBPA and RUNX1 expression to be exhibited in patients with AML. Likely, our data demonstrates that higher levels of CEBPA and RUNX1 expression were closely correlated with reduced myeloid maturation, but this idea needs to approved. It suggests that despite the current established functions of genes involved in cell differentiation, the leukemogenesis process has the capability to transform normal hematopoietic precursors in a manner that may employ the differentiation related gene at the service of malignancy.
      PubDate: 2017-09-11T23:41:02.331505-05:
      DOI: 10.1111/ahg.12210
  • Ancestry Informative Marker Panel to Estimate Population Stratification
           Using Genome-wide Human Array
    • Authors: Fernanda B. Barbosa; Natalia F. Cagnin, Milena Simioni, Allysson A. Farias, Fábio R. Torres, Miriam C. Molck, Tânia K. Araujo, Vera L. Gil-Da-Silva-Lopes, Eduardo A. Donadi, Aguinaldo L. Simões
      Abstract: Case-control studies are a powerful strategy to identify candidate genes in complex diseases. In admixed populations, association studies can be affected by population stratification, leading to spurious genetic associations. Ancestry informative markers (AIMs) can be used to minimise this effect. The aim of this work was to select a set of AIMs to estimate population stratification in a Brazilian case-control study performed using a genome-wide array. A total of 345 single nucleotide polymorphism (SNP) AIMs, selected from the Cytoscan HD array and based on previously reported panels, was used to discriminate between European, African, and Amerindian populations. These SNP-AIMs were used to infer ancestry in systemic lupus erythematosus (SLE) patients (n  =  23) and in healthy subjects (n  =  110). Moderate population substructure was observed between SLE and control groups (Fst  =  0.0113). Although patients and controls have shown a major European genomic contribution, significant differences in the European (P  =  6.47 × 10−5) and African (P  =  1.14 × 10−3) ancestries were detected between the two groups. We performed a two-step validation of the 345 SNP-AIMs panel estimating the ancestral contributions using a panel of 12 AIMs and approximately 70K SNPs from the array. Evaluation of population substructure in case-control studies, avoiding spurious genetic associations, can be performed using our panel of 345 SNP-AIMs.
      PubDate: 2017-09-11T23:36:07.531236-05:
      DOI: 10.1111/ahg.12208
  • Evaluation of a Role for NPY and NPY2R in the Pathogenesis of Obesity by
           Mutation and Copy Number Variation Analysis in Obese Children and
    • Authors: Evi Aerts; Ellen Geets, Laure Sorber, Sigri Beckers, An Verrijken, Guy Massa, Kim Hoorenbeeck, Stijn L Verhulst, Luc F Gaal, Wim Hul
      Abstract: Neuropeptide Y (NPY) and its G protein–coupled NPY Y2 Receptor (NPY2R) are highly expressed in orexigenic NPY/Agouti-related peptide neurons within the arcuate nucleus, a major integrator of appetite control in the hypothalamus. As NPY and NPY2R are interesting candidate genes for obesity, we hypothesized that a genetic variation in these genes might be implicated in the pathogenesis of obesity.In the first part of this study, we performed a mutation analysis of the coding region of NPY and NPY2R with high-resolution melting curve analysis. For the highly conserved NPY gene, an extended population of 436 obese children and adolescents was screened, while for NPY2R, a smaller subset of 306 patients was used. A control population of 300 healthy individuals was screened for NPY2R to determine the general prevalence of the variants found among patients. Direct sequencing was performed for samples with melting patterns deviating from wild-type.In the second part of this study, Multiplex Amplicon Quantification (MAQ) analysis was performed in 308 obese children and adolescents to detect copy number variation (CNV) in the NPY2R region.Mutation analysis of the NPY gene led to the identification of one common missense variant (L7P; MAF 0.04), while the screening of the NPY2R gene resulted in the identification of one rare missense variant F87I in the patient population.In our CNV analysis, we could not identify copy number variation in the NPY2R region among obese children and adolescents.In summary, this study clearly indicates that genetic variation in NPY and NPY2R is at low frequency and thus does not make a major contribution to the obese phenotype in the general population.
      PubDate: 2017-08-31T05:10:26.047151-05:
      DOI: 10.1111/ahg.12211
  • Interaction Between Val158Met Catechol-O-Methyltransferase Polymorphism
           and Social Cognitive Functioning in Schizophrenia: Pilot Study
    • Authors: Aneta Tylec; Witold Jeleniewicz, Ann Mortimer, Małgorzata Bednarska-Makaruk, Katarzyna Kucharska
      Abstract: The Val158Met catechol-O-methyltransferase (COMT) functional polymorphism may influence social cognitive functioning in patients with schizophrenia.Aspects of social cognition were evaluated with the Facial Expression Recognition Test, the Voice Emotion Recognition Test, and the Reading the Mind in the Eyes Test. The Short Recognition Memory Test for Faces was used as a control measure. The Schedule for the Assessment of Negative Symptoms, Schedule for the Assessment of Positive Symptoms, and Beck Depression Inventory were used to rate of patient symptoms.There were 100 patients with the following genotypes: Val/Val (21), Met/Met (30), and Val/Met (49). The genotype distribution of polymorphism of Val158Met COMT did not differ between the patient and control groups. Schizophrenia carriers of the Val/Val genotype performed worse in social cognitive measures, in comparison with the other groups. No statistically significant correlations were recorded between age at schizophrenia onset and polymorphism of Val158Met COMT. There was an influence of genotype in the control group: the Met homozygotes performing better.Schizophrenia patients homozygous for the Val allele showed significant disadvantages over patients homozygous or heterozygous for the Met allele in social cognitive processes. The COMT genotype may not, however, contribute to the age of onset of schizophrenia.
      PubDate: 2017-08-30T01:20:33.646983-05:
      DOI: 10.1111/ahg.12209
  • Prevalence of Mutations in Deafness-Causing Genes in Cochlear Implanted
           Patients with Profound Nonsyndromic Sensorineural Hearing Loss in Shandong
           Province, China
    • Authors: Jianfen Luo; Xiaohui Bai, Fengguo Zhang, Yun Xiao, Lintao Gu, Yuechen Han, Zhaomin Fan, Jianfeng Li, Lei Xu, Haibo Wang
      Abstract: The mutations of GJB2, SLC26A4, and mtDNA12SrRNA are the most common inherited causes of nonsyndromic sensorineural hearing loss (NSHL) in China, yet previous genetic screenings were mainly carried on patients with moderate-to-profound impairment. We aimed to detect the mutation frequencies in NSHL population within a more specified range of severity. Patients with profound NSHL who had undergone cochlear implantation in the Shandong Provincial Hospital (Shandong, China) were recruited. The majority (n  =  472) were between 0.7 and 6 years old, and the remaining (n  =  63) were between 6 and 70 years old. In total, 115 mutation alleles of the three genes were screened with SNP scan assay. Of the patients, 19.44% (104/535) were found to have GJB2 mutations, and the most common allele was c.235delC, followed by c.299_300delAT and c.109G>A. SLC26A4 mutations were detected in 13.46% patients (72/535), and the most common allele was c.919-2A>G (IVS7-2A>G), followed by c.1174A>T and c.2168A>G. Seven patients (1.31%) carried mutations in mtDNA12SrRNA, with the alleles of m.1555A>G and m.1494C>T. We found the allele frequency of c.109G>A (GJB2) was relatively lower in the profound NSHL population in comparison to the moderate-to-profound ones, and the c.1174A>T (SLC26A4) relatively higher. It suggests those mutations may be connected with the degree of deafness, which needs more observations and analyses to support.
      PubDate: 2017-08-08T01:15:38.254619-05:
      DOI: 10.1111/ahg.12207
  • High Y-chromosomal Differentiation Among Ethnic Groups of Dir and Swat
           Districts, Pakistan
    • Authors: Inam Ullah; Jill K. Olofsson, Ashot Margaryan, Melissa Ilardo, Habib Ahmad, Martin Sikora, Anders J. Hansen, Muhammad Shahid Nadeem, Numan Fazal, Murad Ali, Anders Buchard, Brian E. Hemphill, Eske Willerslev, Morten E. Allentoft
      Abstract: The ethnic groups that inhabit the mountainous Dir and Swat districts of northern Pakistan are marked by high levels of cultural and phenotypic diversity. To obtain knowledge of the extent of genetic diversity in this region, we investigated Y-chromosomal diversity in five population samples representing the three main ethnic groups residing within these districts, including Gujars, Pashtuns and Kohistanis. A total of 27 Y-chromosomal short tandem repeats (Y-STRs) and 331 Y-chromosomal single nucleotide polymorphisms (Y-SNPs) were investigated. In the Y-STRs, we observed very high and significant levels of genetic differentiation in nine of the 10 pairwise between-group comparisons (RST 0.179–0.746), and the differences were mirrored in the Y-SNP haplogroup frequency distribution. No genetic differences were found between the two Pashtun subethnic groups Tarklanis and Yusafzais (RST = 0.000). Utmankhels, also considered Pashtuns culturally, were not closely related to any of the other population samples (RST 0.451–0.746). Thus, our findings provide examples of both associations and dissociations between cultural and genetic legacies. When analyzed within a larger continental-scale context, these five ethnic groups fall mostly outside the previously characterized Y-chromosomal gene pools of the Indo-Pakistani subcontinent. Male founder effects, coupled with culturally and topographically based constraints upon marriage and movement, are likely responsible for the high degree of genetic structure in this region.
      PubDate: 2017-08-03T01:51:14.790077-05:
      DOI: 10.1111/ahg.12204
  • The Impact of FOXP3 Polymorphism on the Risk of Allergic Rhinitis: A
    • Authors: Guimin Zhang; Di Zhang, Wenjie Shi, Peiyong Sun, Peng Lin
      Abstract: Polymorphisms of several genes were reported to be associated with the risk of allergic rhinitis. Here, we first conducted a meta-analysis to evaluate the potential genetic association between the polymorphisms of the FOXP3 (Forkhead Box P3) gene and the susceptibility to allergic rhinitis. A total of 2671 relevant articles were initially retrieved from the databases of PubMed, Web of Science, Embase, WANFANG/CNKI and Scopus, and six eligible case-control studies were finally enrolled in our meta-analysis, according to our strict inclusion/exclusion criteria. Based on the extracted data, Mantel–Haenszel statistic, Cochrane's Q statistic, I2 test, subgroup meta-analysis, Begg's test, Egger's test and sensitivity analysis were performed via Stata/SE 12.0 software. The results of the Mantel–Haenszel statistic regarding rs3761548 showed that no significant difference was observed in the allergic rhinitis case and population-based control group under the genetic models of A versus C, AA versus CC, CA+AA versus CC, AA versus CC+CA and carrier A versus C (all P-value of Association Test, PA > 0.05), apart from CA versus CC (PA  =  0.020). The similar results were obtained in the subgroup analysis of Asian. In addition, we did not obtain the positive result in the meta-analysis of rs2232365 (all PA > 0.05). We also excluded the presence of large publication bias through Begg's test and Egger's test, and we confirmed the stability of data by sensitivity analysis. In summary, no significant association between rs3761548, rs2232365 polymorphisms of the FOXP3 gene, and an increased susceptibility to allergic rhinitis was identified based on the published data; however, this conclusion should be confirmed by more studies with increased sample sizes.
      PubDate: 2017-07-25T01:56:14.251677-05:
      DOI: 10.1111/ahg.12205
  • Disease-Causing Variants in the ATL1 Gene Are a Rare Cause of Hereditary
           Spastic Paraplegia among Czech Patients
    • Authors: Anna Uhrová Mészárosová; Dagmar Grečmalová, Michaela Brázdilová, Nina Dvořáčková, Zdeněk Kalina, Marie Čermáková, Dagmar Vávrová, Irena Smetanová, David Staněk, Pavel Seeman
      Abstract: Variants in the ATL1 gene have been repeatedly described as the second most frequent cause of hereditary spastic paraplegia (HSP), a motor neuron disease manifested by progressive lower limb spasticity and weakness. Variants in ATL1 have been described mainly in patients with early onset HSP. We performed Sanger sequencing of all coding exons and adjacent intron regions of the ALT1 gene in 111 Czech patients with pure form of HSP and additional Multiplex-Ligation Probe Analysis (MLPA) testing targeting the ATL1 gene in 56 of them. All patients except seven were previously tested by Sanger sequencing of the SPAST gene with negative results. ATL1 diagnostic testing revealed only five missense variants in the ATL1 gene. Four of them are novel, but we suppose only two of them to be pathogenic and causal. The remaining variants are assumed to be benign. MLPA testing in 56 of sequence variant negative patients revealed no gross deletion in the ATL1 gene. Variants in the ATL1 gene are more frequent in patients with early onset HSP, but in general the occurrence of pathogenic variants in the ATL1 gene is low in our cohort, less than 4.5% and less than 11.1% in patients with onset before the age of ten. Variants in the ATL1 gene are a less frequent cause of HSP among Czech patients than has been previously reported among other populations.
      PubDate: 2017-07-23T23:30:34.538609-05:
      DOI: 10.1111/ahg.12206
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