作者: Feng Zhang , Yan Wen , Xiong Guo , Yingang Zhang , Xi Wang
DOI: 10.1002/ART.38898
关键词: Locus (genetics) 、 SNP array 、 Osteochondropathy 、 Single-nucleotide polymorphism 、 Genome-wide association study 、 SNP 、 Kashin–Beck disease 、 Genetics 、 Biology 、 Case-control study
摘要: Objective Kashin-Beck disease (KBD) is a chronic osteochondropathy, the pathogenesis of which remains elusive. The aim this study was to identify susceptibility genes for KBD by conducting 2-stage genome-wide association (GWAS). Methods Ninety patients with grade II or III extreme phenotypes and 1,627 healthy control subjects were enrolled in initial GWAS. Affymetrix Genome-Wide Human SNP Array 6.0 used genotyping. For replication study, 9 single-nucleotide polymorphisms (SNPs) significant gene identified GWAS (ITPR2) tested an independent validation sample composed 559 467 subjects. Results The (P = 1.58 × 10−8) between novel locus, ITPR2 rs10842750. showed associations at SNPs, including rs10842750 5.97 10−3), rs16931011 1.29 rs1531928 4.95 rs4414322 4.40 rs11048570 4.53 rs11048572 4.43 rs2017510 4.58 rs9669395 5.77 rs1002835 4.85 10−3). In KBD, genotype score also correlated clinical severity grades 0.013). Conclusion Our results strongly suggest that Han Chinese. This may provide new insights into rationale treatment as well other osteoarthritides similar articular cartilage lesions.