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Green Tea Antioxidant Found To Migrate To Eye Tissues To Fight Disease

January 19, 2010: 02:22 AM EST
Scientists in Hong Kong have determined in lab animal studies that the healthful substances known as catechins found in green tea extract actually do penetrate the tissues of the eye, including the lens, aqueous humor, vitreous humor and retina. (The highest concentration of one catechin variety was found in the retina.) Researchers have long believed that green tea catechins might be one of the antioxidants, including vitamin C, vitamin E, lutein, and zeaxanthin, that protect the eye from disease. But until this research was performed, no one was sure if the catechins actually found their way from the digestive tract into eye tissues. The scientists say their discovery suggests that green tea may possibly protect against glaucoma and other common eye diseases.
Kai On Chu, "Green Tea Catechins and Their Oxidative Protection in the Rat Eye", Journal of Agricultural and Food Chemistry, January 19, 2010, © American Chemical Society
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