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A genome-wide association study reveals that variants within the HLA region are associated with risk for nonobstructive azoospermia.

Han Zhao | Jianfeng Xu | Haobo Zhang | Jielin Sun | Yingpu Sun | Zhong Wang | Jiayin Liu | Qiang Ding | Shaoming Lu | Rong Shi | Li You | Yingying Qin | Xiaoming Zhao | Xiaoling Lin | Xiao Li | Junjie Feng | Li Wang | Jeffrey M Trent | Chengyan Xu | Ying Gao | Bo Zhang | Xuan Gao | Jingmei Hu | Hong Chen | Guangyu Li | Junzhao Zhao | Shuhua Zou | Hong Jiang | Cuifang Hao | Yueran Zhao | Jinglong Ma | S Lilly Zheng | Zi-Jiang Chen
American journal of human genetics | 2012

A genome-wide association study of Han Chinese subjects was conducted to identify genetic susceptibility loci for nonobstructive azoospermia (NOA). In the discovery stage, 802 azoospermia cases and 1,863 controls were screened for genetic variants in the genome. Promising SNPs were subsequently confirmed in two independent sets of subjects: 818 azoospermia cases and 1,755 controls from northern China, and 606 azoospermia cases and 958 controls from central and southern China. We detected variants at human leukocyte antigen (HLA) regions that were independently associated with NOA (HLA-DRA, rs3129878, p(combine) = 3.70 × 10(-16), odds ratio [OR] = 1.37; C6orf10 and BTNL2, rs498422, p(combine) = 2.43 × 10(-12), OR = 1.42). These findings provide additional insight into the pathogenesis of NOA.

Pubmed ID: 22541561

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dbSNP (tool)

RRID:SCR_002338

Database as central repository for both single base nucleotide substitutions and short deletion and insertion polymorphisms. Distinguishes report of how to assay SNP from use of that SNP with individuals and populations. This separation simplifies some issues of data representation. However, these initial reports describing how to assay SNP will often be accompanied by SNP experiments measuring allele occurrence in individuals and populations. Community can contribute to this resource.

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OMIM (tool)

RRID:SCR_006437

Online catalog of human genes and genetic disorders, for clinical features, phenotypes and genes. Collection of human genes and genetic phenotypes, focusing on relationship between phenotype and genotype. Referenced overviews in OMIM contain information on all known mendelian disorders and variety of related genes. It is updated daily, and entries contain copious links to other genetics resources.

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