Green Tea Polyphenols Reduce Number of Lung Tumors
Study description: Lab animals were exposed to
two different substances that cause cancer of the lung or forestomach --
diethylnitrosamine (DEN) and (benzo(a)pyrene (BP). Some
of them had been given water containing green tea polyphenols before
being exposed to the carcinogens, others had not.
Type of study: Animal
What happened: Per animal, the green tea water reduced the
number of DEN-related tumors by 41% and BP-related tumors by 39%.
Researchers' conclusion: Giving green tea
polyphenols to lab animals before exposing them to cancer-causing substances
"may afford protection against carcinogen-induced tumorigenesis in internal body
organs."
Citation: Katiyar SK, Agarwal R. Mukhtar H.
Protective effects of green tea polyphenols administered by oral intubation
against chemical carcinogen-induced forestomach and pulmonary neoplasia in A/J
mice. Cancer Letter 1993;73(2-3):167-72. (Click here to read PubMed study
abstract.)
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Nadine Taylor, M.S., R.D. presents
GreenTeaLibrary.com, the most comprehensive collection of scientific
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