Navigation Links
The benefits of green tea in reducing an important risk factor for heart disease
Date:7/2/2008

More evidence for the beneficial effect of green tea on risk factors for heart disease has emerged in a new study reported in the latest issue of European Journal of Cardiovascular Prevention and Rehabilitation.1 The study found that the consumption of green tea rapidly improves the function of (endothelial) cells lining the circulatory system; endothelial dysfunction is a key event in the progression of atherosclerosis.

The study, performed by Dr Nikolaos Alexopoulos and colleagues at the 1st Cardiology Department, Athens Medical School in Greece, was a randomised trial involving the diameter measurement (dilatation) of the brachial artery of healthy volunteers on three separate occasions - after taking green tea, caffeine, and hot water (for a placebo effect). The measurements were taken at 30, 90 and 120 minutes after consumption. Dilatation of the brachial artery as a result of increased blood flow (following a brief period of ischaemia of the upper limb) is related to endothelial function and is known to be an independent predictor of cardiovascular risk.2

Results showed that endothelium-dependent brachial artery dilatation increased significantly after drinking green tea, with a peak increase of 3.9 per cent 30 minutes after consumption. The effect of caffeine consumption (or hot water) was not significant.

While black tea has been associated with improved short and long-term endothelial performance, this is the first time that green tea has been shown to have a short-term beneficial effect on the large arteries. Another study has already shown that green tea reverses endothelial dysfunction in smokers.

Green tea, which originates in China but is now consumed throughout the world, is made with pure leaves, and has undergone little oxidisation during processing. The cardiovascular benefits of all teas - as well as dark chocolate and red wine - are attributed to the flavonoids they contain and their antioxidant activity.3 However, says investigator Dr Charalambos Vlachopoulos, flavonoids in green tea are probably more potent antioxidants than in black tea because there has been no oxidisation.

"These findings have important clinical implications," says Dr Vlachopoulos. "Tea consumption has been associated with reduced cardiovascular morbidity and mortality in several studies. Green tea is consumed less in the Western world than black tea, but it could be more beneficial because of the way it seems to improve endothelial function. In this same context, recent studies have also shown potent anticarcinogenic effects of green tea, attributed to its antioxidant properties."


'/>"/>

Contact: Cline Colas
ccolas@escardio.org
33-492-947-609
European Society of Cardiology
Source:Eurekalert

Related biology news :

1. Tufts University biologists link Huntingtons disease to health benefits in young
2. The benefits of 80 million years without sex
3. New data shows benefits of MitraClip for patients with mitral regurgitation
4. RAND paper finds diesel, hybrid vehicles can provide more societal benefits than gas-powered autos
5. Surprise -- cholesterol may actually pose benefits, study shows
6. Biomass production -- careful planning can bring many benefits
7. Global Biopact on biofuels can bring benefits to both rich and poor nations
8. Solving an avian scourge could also provide benefits to human health
9. Sanitation investment in poor countries would yield $9-to-1 benefits in productivity, health: UN
10. Brief, intense exercise benefits the heart
11. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/3/2017)... , Jan. 3, 2017 Onitor, provider ... introduction of Onitor Track, an innovative biometric data-driven program ... showcasing this month at the 2017 Consumer Electronics Show ... In the U.S., the World Health Organization ... than two-thirds of adults who are overweight or obese. ...
(Date:12/20/2016)... 20, 2016   Valencell , the leading ... STMicroelectronics (NYSE: STM), a global semiconductor leader ... announced today the launch of a new, highly ... that includes ST,s compact SensorTile turnkey ... biometric sensor system. Together, SensorTile and Benchmark deliver ...
(Date:12/16/2016)... global wearable medical device market, in terms of value, is projected ... in 2016, at a CAGR of 18.0% during the forecast period. ... Growth in ... launch of a growing number of smartphone-based healthcare apps compatible with ... increasing focus on physical fitness. Furthermore, growing trend ...
Breaking Biology News(10 mins):
(Date:1/24/2017)... - BioAmber Inc. (NYSE: BIOA ) announced that, ... the size of the offering by 75% and purchase 3,684,212 ... to purchase 1,842,106 shares of common stock of the Company ... stock (the "Exercise Price"), at a price to the public ... The warrants have a term of four (4) years, exercisable ...
(Date:1/24/2017)... ... January 24, 2017 , ... Men who ... leptin levels had a positive association with increased prostate growth or benign prostatic ... International Neurourology Journal involved 571 Korean men who underwent urological examinations, including ...
(Date:1/24/2017)... Geneva, Switerland (PRWEB) , ... January 24, 2017 ... ... the first commercially available malaria Plasmodium falciparum culture panels with standard concentrations of ... panels, which are available in a range of concentrations from six different malaria ...
(Date:1/24/2017)... 24, 2017 /PRNewswire/ - ProMetic Life Sciences Inc. (TSX: PLI) ... its orally active lead drug candidate, PBI-4050, has been ... UK Medicines and Healthcare Products Regulatory Agency ("MHRA") for ... A PIM designation is an early indication that a ... Access to Medicines Scheme ("EAMS"), intended for the treatment, ...
Breaking Biology Technology: