Effects of Quercetin on Blood Pressure: A Systematic Review and Meta‐Analysis of Randomized Controlled Trials

Autor: Maria‐Corina Serban, Amirhossein Sahebkar, Alberto Zanchetti, Dimitri P. Mikhailidis, George Howard, Diana Antal, Florina Andrica, Ali Ahmed, Wilbert S. Aronow, Paul Muntner, Gregory Y. H. Lip, Ian Graham, Nathan Wong, Jacek Rysz, Maciej Banach
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 5, Iss 7 (2016)
Druh dokumentu: article
ISSN: 2047-9980
DOI: 10.1161/JAHA.115.002713
Popis: BackgroundQuercetin, the most abundant dietary flavonol, has antioxidant effects in cardiovascular disease, but the evidence regarding its effects on blood pressure (BP) has not been conclusive. We assessed the impact of quercetin on BP through a systematic review and meta‐analysis of available randomized controlled trials. Methods and ResultsWe searched PUBMED, Cochrane Library, Scopus, and EMBASE up to January 31, 2015 to identify placebo‐controlled randomized controlled trials investigating the effect of quercetin on BP. Meta‐analysis was performed using either a fixed‐effects or random‐effect model according to I2 statistic. Effect size was expressed as weighted mean difference (WMD) and 95% CI. Overall, the impact of quercetin on BP was reported in 7 trials comprising 9 treatment arms (587 patients). The results of the meta‐analysis showed significant reductions both in systolic BP (WMD: −3.04 mm Hg, 95% CI: −5.75, −0.33, P=0.028) and diastolic BP (WMD: −2.63 mm Hg, 95% CI: −3.26, −2.01, P500 mg/day. Further studies are necessary to investigate the clinical relevance of these results and the possibility of quercetin application as an add‐on to antihypertensive therapy.
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