The association analysis between CYP24A1 genetic polymorphisms and the risk of ischemic stroke in Chinese Han population.

Aims: Stroke is a complicated neurological disease and the second leading cause of death in the world. We aimed to investigate the association between CYP24A1 genetic polymorphisms and ischemic stroke risk. Methods: In this case–control study, four single‐nucleotide polymorphisms of CYP24A1 were selected and genotyped by MassARRAY platform in Chinese Han population. Odds ratios and 95% confidence intervals were calculated via logistic regression analysis with adjustment in genetic models. Results: Our results indicated that CYP24A1 variant (rs1570669) was associated with the decreased risk of ischemic stroke (OR = 0.60, p <.001). Stratification analysis showed that the rs6068816 could enhance the ischemic stroke risk by 1.64 times (OR = 1.64, p =.028), while rs1570669 played protective role (OR = 0.63, p =.044) in age >64 years. The rs2762934 had an increased ischemic stroke susceptibility (OR = 1.62, p =.033); however, rs1570669 might reduce stroke risk (OR = 0.61, p =.015) in age ≤64 years. The rs1570669 depressed ischemic stroke susceptibility both in female and male patients (OR = 0.46, p =.002; OR = 0.69, p =.033, respectively), and rs2296241 would weaken the risk in male (OR = 0.63, p =.012). The rs1570669 was associated with decreased risk of ischemic stroke with hypertension (OR = 0.56, p =.042). Conclusion: Our study gave the evidences that CYP24A1 genetic polymorphisms were significantly associated with ischemic stroke patients, which would provide useful information of assessment or possible diagnostic markers for ischemic stroke. [ABSTRACT FROM AUTHOR]