Inverse Association Between Serum Uric Acid Levels and Alzheimer’s Disease Risk
Molecular Neurobiology(2015)
摘要
The association between Alzheimer’s disease and uric acid levels had gained great interest in recent years, but there was still lack of definite evidence. A systematic review and meta-analysis of relevant studies was performed to comprehensively estimate the association. Relevant studies published before October 26, 2014, were searched in PubMed, Embase, and China Biology Medicine (CBM) databases. Study-specific data were combined using random-effects or fixed-effects models of meta-analysis according to between-study heterogeneity. Twenty-four studies (21 case-control and 3 cohort studies) were finally included into the meta-analysis. Those 21 case-control studies included a total of 1128 cases of Alzheimer’s disease and 2498 controls without Alzheimer’s disease. Those 3 cohort studies included a total of 7327 participants. Meta-analysis showed that patients with Alzheimer’s disease had lower levels of uric acid than healthy controls (weighted mean difference (WMD) = −0.77 mg/dl, 95 % CI −2.28 to −0.36, P = 0.0002). High serum uric acid levels were significantly associated with decreased risk of Alzheimer’s disease (risk ratio (RR) = 0.66, 95 % CI 0.52–0.85, P = 0.001). There was low risk of publication bias in the meta-analysis. There is an inverse association between serum uric acid levels and Alzheimer’s disease. High serum uric acid level is a protective factor of Alzheimer’s disease.
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关键词
Alzheimer’s disease,Uric acid,Meta-analysis
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