Thursday, May 29, 2008

Fruits, Vegetables And Teas May Protect Smokers From Lung Cancer

Fruits, Vegetables And Teas May Protect Smokers From Lung Cancer, Researchers Report: "ScienceDaily
— Tobacco smokers who eat three servings of fruits and vegetables per day and drink green or black tea may be protecting themselves from lung cancer, according to a first-of-its-kind study by UCLA cancer researchers...flavonoids that appeared to be the most protective included catechin, found in strawberries and green and black teas, kaempferol, found in Brussels sprouts and apples, and quercetin, found in beans, onions and apples...flavonoids protect against lung cancer by blocking the formation of blood vessels that tumors develop so they can grow and spread, a process called angiogenesis. They also stop cancer cells from growing, allowing for naturally programmed cell death, or apoptosis, to occur...The antioxidant properties found in the flavonoids also may work to counteract the DNA damaging effects of tobacco smoking, Zhang said, explaining why they affected the development of lung cancer in smokers but not in non-smokers..."The naturally occurring chemicals may be working to reduce the damage caused by smoking," Zhang said."

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