Objective: To explore the association between alpha-adducin (ADD1) G/W460 and intracerebral hemorrhage (ICH) in Chinese.
Methods: Samples of peripheral blood were collected from 456 patients with ICH diagnosed by CT or MRI from 7 clinical centers in China and 454 age, sex, and geographically matched subjects as controls. The ADD1 G/W460 polymorphism was detected by PCR. Information about prior exposure to various potential risk factors was collected by questionnaire survey.
Results: The distribution of ADD1gene G460W polymorphisms in the ICH patients and controls were in agreement with the Hardy-Weinberg proportion. The prevalence of 460W allele among ICH cases was 82.2%, higher than that in the controls (76.0%, crude odds ratio, 1.46; 95% CI, 1.05 to 2.05). The ADD1 460W allele was still significantly associated with ICH after adjustment for hypertension and other ICH putative risk factors (adjusted odds ratio, 1.38; 95% CI, 1.01 to 1.88).
Conclusion: Alpha-adducin gene G/W 460 polymorphism is significantly associated with the risk of ICH. This association does not appear to be mediated by established ICH risk factors, specifically hypertension status.