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:3/21/2016)... -- Unique technology combines v ...   Xura, Inc. (NASDAQ: ... communications services, today announced it is working alongside SpeechPro ... particularly those in the Financial Services Sector, the ability ... a mobile app, alongside, and in combination with, traditional ...
(Date:3/15/2016)... -- Yissum Research Development Company of the Hebrew ... Hebrew University, announced today the formation of Neteera ... human biological indicators. Neteera Technologies has completed its first ... ... emissions from sweat ducts, enables reliable and speedy biometric ...
(Date:3/11/2016)... -- --> --> ... Market by Technology (Pattern Recognition), by Component (Hardware, Software, ... (On-Premises and Cloud), by Industry Vertical and by Region ... global market is expected to grow from USD 12.49 ... at a CAGR of 19.1%. , ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... May 25, 2016 , ... Scientists at the University of Athens ... for mesothelioma may be hampering the research that could lead to one good one. ... to read it now. , The team evaluated 98 mesothelioma patients ...
(Date:5/25/2016)... Connecticut (PRWEB) , ... May 25, 2016 , ... ... the U.S. Food and Drug Administration (FDA) has granted the company’s orphan drug ... the company’s second orphan drug designation granted by the FDA. , Spinocerebellar ...
(Date:5/24/2016)... La Jolla, CA (PRWEB) , ... May 24, 2016 , ... ... and financial planning for corporate executives and entrepreneurs, held The Future of San Diego ... leaders in the San Diego life science community attended the event with speakers Dr. ...
(Date:5/23/2016)... ... May 23, 2016 , ... PrecisionAg® Media has ... 2017 and Beyond. The paper outlines the key trends that are creating both ... “We’ve witnessed a lot of highs and lows as the precision agriculture market ...
Breaking Biology Technology: