期刊
JOURNAL OF THE NEUROLOGICAL SCIENCES
卷 345, 期 1-2, 页码 37-47出版社
ELSEVIER
DOI: 10.1016/j.jns.2014.07.023
关键词
Ischemic stroke; Genetics; Etiology; ACE I/D; Polymorphism; Meta-analysis
Background: The association between the angiotensin-converting enzyme insertion/deletion (ACE I/D) polymorphism and risk of ischemic stroke (IS) remains controversial and ambiguous. To clarify this association, a large meta-analysis was performed. Methods: Electronic databases in both English and Chinese were used to identify relevant studies (updated in February 2014). Odds ratios (ORs) and 95% confidence intervals (95% CIs) were used to describe the strength of the association. Results: One hundred and fifty eligible studies, including 18,258 IS cases and 28,768 controls, were identified. Meta-analysis of these studies pointed to a significant association between the ACE I/D polymorphism and IS risk: (D vs. I: OR = 1.354, 95% CI = 1.272-1.440, P < 0.001; DD vs. II: OR = 1.755, 95% CI = 1.561-1.973, P < 0.001; ID vs. II: OR = 1.178,95% CI = 1.098-1.263, P < 0.001; DD vs. ID/II: OR = 1535,95% CI = 1399-1.684, P < 0.001; DD/ID vs. II: OR = 1.353,95% CI = 1.251-1.463, P < 0.001). Subgroup analysis revealed a significantly elevated risk among Asians, but with borderline statistical significance among Caucasians. Conclusion: This meta-analysis indicated that the ACE I/D polymorphism may be a genetic susceptibility factor for IS, especially among Asians, but with borderline statistical significance for Caucasians. Further investigations are needed to validate our conclusions. (C) 2014 Elsevier B.V. All rights reserved.
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