Post Date December, 03 2023
The multifaceted protective effects of tea on human health have been well known. Recently, further research by American scientists on black tea and green tea has shown that these two types of tea have the effect of slowing the spread of prostate cancer, while the antioxidant substances rich in red wine and peanuts cannot produce effective anti cancer effects.
In this study, researchers asked 20 prostate cancer patients to drink five cups of black tea, green tea, or soda a day five days before prostate cancer surgery. The goal is to test whether the polyphenols contained in tea can affect the growth of prostate cancer cells. Because some previous studies have found that polyphenols can cause cancer cell death.
After the surgery, the researchers studied prostate cancer tumors removed from these patients. They found that patients who drank tea before surgery had a reduced spread of prostate cancer cells, while patients who drank soda before surgery did not find the same pattern in their cancer tumors.
Researchers say this is the first direct human demonstration that polyphenols in tea have an inhibitory effect on the growth of prostate cancer cells. The research results also show that black tea has a better effect. The researchers believe that their research results further confirm the theory that black and green tea can prevent prostate cancer.
In recent years, scientists have begun to study the cancer prevention effect of tea. One reason is that the incidence rate of some cancers is relatively low in countries that like drinking tea. At the same time, recent scientific research has shown that not all polyphenols can produce cancer prevention effects. For example, resveratrol, a polyphenol found in red wine and peanuts, does not have the same anti cancer effect.
The researchers also cautioned that their findings do not indicate that drinking tea alone can prevent the development of prostate cancer. Healthy eating habits, eating more vegetables and fruits, and drinking tea regularly can play a positive role in preventing cancer.
(Intern Editor: Huang Junda)
