Folic Acid Supplementation and the Risk of Cardiovascular Diseases: A Meta-Analysis of Randomized Controlled Trials Epidemiology

Background Results from observational and genetic epidemiological studies suggest that lower serum homocysteine levels are associated with lower incidence of cardiovascular disease (CVD). Numerous randomized controlled trials have investigated the efficacy of lowering homocysteine with folic acid supplementation for CVD risk, but conflicting results have been reported. Methods and Results Three bibliographic databases (Medline, Embase, and the Cochrane Database of Systematic Reviews) were searched from database inception until December 1, 2015. Of the 1933 references reviewed for eligibility, 30 randomized controlled trials involving 82 334 participants were included in the final analysis. The pooled relative risks of folic acid supplementation compared with controls were 0.90 (95% CI 0.84–0.96; P=0.002) for stroke, 1.04 (95% CI 0.99–1.09; P=0.16) for coronary heart disease, and 0.96 (95% CI 0.92–0.99; P=0.02) for overall CVD. The intervention effects for both stroke and combined CVD were more pronounced among participants with lower plasma folate levels at baseline (both P
Source: JAHA:Journal of the American Heart Association - Category: Cardiology Authors: Tags: Cardiovascular Disease, Diet and Nutrition Epidemiology Source Type: research

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Source: Renal Failure - Category: Urology & Nephrology Tags: Ren Fail Source Type: research
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