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Abstract Title:

Corn Silk Tea for Hypertension: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Abstract Source:

Evid Based Complement Alternat Med. 2019 ;2019:2915498. Epub 2019 Jan 17. PMID: 30792743

Abstract Author(s):

Shihua Shi, Siming Li, Weihao Li, Hao Xu

Article Affiliation:

Shihua Shi

Abstract:

Corn silk, a traditional Chinese medicine, has been found to exert an antihypertensive effect in clinical practice and trials. However, systematic review of current evidence on this topic was not available. Thus, this study aims to assess safety and efficacy of corn silk tea (CST) in improving clinical outcomes in patients with hypertension. A systematic literature search was conducted through popular electronic databases up to October 2018. Randomized controlled trials (RCTs) comparing CST plus conventional antihypertensive drugs with conventional antihypertensive drugs alone were included. The main outcome was total blood pressure lowering efficacy. The risk of bias assessment according to the Cochrane Handbook was used to evaluate the methodological quality of the included trials. Review Manager 5.3 software was used for data analyses. Five RCTs involving 567 participants were included. Due to the poor quality of methodologies of most trials, limited evidence showed that CST plus antihypertensive drugs might be more effective in lowering blood pressure compared with antihypertensive drugs alone (RR = 1.27; 95% CI: 1.17 to 1.38,<0.00001; heterogeneity:= 0.51,= 0%, fixed-effect model). However, there is no evidence that CST plus conventional antihypertensive drugs has less adverse events than conventional antihypertensive drugs.

Study Type : Meta Analysis, Review

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