期刊
JOURNAL OF THE AMERICAN COLLEGE OF NUTRITION
卷 36, 期 2, 页码 108-115出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/07315724.2016.1194236
关键词
green tea; blood pressure; obesity; metabolic profile; endothelial function
资金
- Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Background: Green tea consumption has been inversely associated with cardiovascular disease (CVD) in epidemiological studies. Although some interventional trials suggest that green tea has beneficial effects on CVD risk factors, such as hypertension and obesity, others have failed to show such benefits. Aims: To evaluate the short-term effects of green tea on blood pressure, endothelial function, metabolic profile, and inflammatory activity in obese prehypertensive women. Methods: This study was a crossover, randomized, double-blind, placebo-controlled clinical trial. Participants were randomly allocated to receive daily 3 capsules containing either 500 mg of green tea extract (GTE) or a matching placebo for 4 weeks, with a washout period of 2 weeks between treatments. Each GTE capsule contained 260 mg of polyphenols. At the beginning and at the end of each treatment, participants were submitted to evaluation of blood pressure (ambulatory blood pressure monitoring, ABPM), endothelial function (Endo-PAT 2000 and cellular adhesion molecules), nutritional parameters, metabolic profile, and biomarkers of inflammation. Results: Twenty women age 41.1 +/- 8.4 years completed the study. After 4 weeks of GTE supplementation in comparison with placebo, there was a significant decrease (p < 0.05) in systolic blood pressure at 24 hours (-3.61 +/- 1.23 vs 1.05 +/- 1.34 mmHg), daytime (-3.61 +/- 1.26 vs 0.80 +/- 1.57 mmHg), and nighttime (-3.94 -1.70 vs 1.90 +/- 1.66 mmHg). Changes in diastolic blood pressure and in all other parameters did not present a significant difference between GTE and placebo. Conclusion: The findings of this study suggest that in obese prehypertensive women, short-term daily intake of GTE may decrease blood pressure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据