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Green Tea Helps Prevent Heart Disease Risk Factor

By Daniel H. Rasolt

Posted: Friday, July 04, 2008

(Defeat Diabetes® News) -- The dysfunction of certain cells that line the circulatory system is known to help lead to a progression of heart disease. Green tea consumption was found in a recent study to help prevent this heart disease risk factor.
The cells lining the circulatory system, known as endotherial cells, when not functioning properly, can lead to a condition called atherosclerosis. Atherosclerosis is a form of arteriosclerosis, which is characterized by a hardening of the arteries, and is a major risk factor for heart disease.
It was found by a team of researchers at Athens Medical School in Greece that green tea greatly improves the function of endotherial cells, helping prevent atherosclerosis. The study was conducted by measuring the dilation (more dilation represents increased blood flow and better endotherial cell function) of the very important brachial artery, in response to three substances: green tea, caffeine, and hot water. Tests were performed 30, 60 and 90 minutes after consumption of each substance.
The results showed a significant 3.9% increase in diameter of the brachial artery thirty minutes after green tea consumption, with the artery slowly declining in dilation after this maximum. Caffeine and hot water on the other hand did not dilate the brachial artery to any significant extent.
The positive cardiovascular effects associated with green tea consumption are attributed to its flavonoid content and high levels of antioxidants. Other teas, such as black tea, as well as dark chocolate and red wine, have been shown in past research to have cardiovascular benefits attributed to their flavonoid and antioxidant levels.

Source: Defeat Diabetes Foundation: Colas, Celine. European Journal of Cardiovascular Prevention and Rehabilitation. July 2008.

Daniel H. Rasolt writes for Defeat Diabetes® News. Read more of his original content articles.

Copyright © 2008 Defeat Diabetes Foundation, Inc. All rights reserved.

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