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Green tea linked to prostate cancer reduction
An American cancer centre has concluded that drinking the equivalent of 12 cups of green tea could help fight prostate cancer.
The Feist-Weiller Cancer Centre in Baton Rouge, Louisiana, said that a green tea extract –epigallocatechin gallate (EGCG) – with anti-oxidant properties can prove effective in slowing the progression of prostate cancer.
Twenty-six men who had been diagnosed with prostate cancer and about to undergo surgery were put on daily doses of 1.3 grams of polyphenon E capsules containing EGCG to lower the levels of proteins used by the tumours to grow and spread.
This is similar to drinking about 12 cups of normally brewed concentrated green tea.
The Money Times, which reported the story, said the therapy lasted an average of 34.5 days and was stopped on the day of the surgery.
Serum was tested for hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), insulin-like growth factor-I (IGF-I), IGF binding protein-3 (IGFBP-3), and prostate-specific antigen (PSA). The liver function was also monitored.
The researchers saw a reduction in the three proteins associated with the growth and spread of prostate cancer. It is thought it could be a good addition to chemotherapy or radiation treatment, but is unlikely to be able to shrink tumours.
Prostate cancer is the second leading cause of death among men in American.
The study is published in the journal Cancer Prevention Research.
The findings come on the back of other studies that have found its usefulness in reducing stroke risks and for its uses in combating the virus HPV, which is linked with cervical cancer and is the most common STD in America.