Influence of COL9A1 and COL19A1 Polymorphisms on Kaschin-Beck Disease Risk
Abstract Objective: We aimed to determine whether COL9A1 and COL19A1 polymorphisms were associated with Kaschin-Beck disease (KBD) risk. Methods: Five single nucleotide polymorphisms (SNPs) in COL9A1 and COL19A1 were genotyped in 316 KBD patients and 320 healthy controls. The correlation between genetic polymorphisms and KBD risk were assessed using logistic regression models by calculating odds ratio (OR) and 95% confidence interval (CI). Results: After adjustment with age and sex, the frequency distributions of genotypes in rs3806093 and rs9346371 were significantly different between cases and controls. COL9A1 rs3806093 significantly increased KBD risk in co-dominant (OR = 14.80, p = 0.024) and recessive (OR = 16.39, p = 0.019) models. Meanwhile, COL9A1 rs555313 was associated with KBD risk in recessive model (OR = 3.80, p = 0.048). However, no strong relationships were observed after false discovery rate correction. In addition, haplotype analysis revealed two blocks (block 1: rs3806093, rs603410 and rs621347; block 2: rs9346371 and rs555313). Conclusion: COL9A1 and COL19A1 polymorphisms were associated with KBD risk in the Chinese Han population, suggesting roles of COL9A1 and COL19A1 in the development of KBD.