American scientists say their study of bladder cancer confirms that green tea extracts can effectively curb cancer development without damaging healthy cells.
The team, led by Chinese-American scientists, believes green tea extracts could be an effective anticancer drug. The results were published in the Journal of Clinical Cancer Research. Rao Jianyu, an associate professor at the University of California, Los Angeles, who chaired the study, said their results "improved understanding of the mechanism of the green tea extract".
If there is an understanding of the mechanism of green tea extracts to contain tumours, it is possible to determine which type of cancer patients benefit from the green tea extract. The development of cancer tumours is closely linked to the proliferation of cancer cells, and the cancer cells need to start a cellular process called actin remodeling, the researchers wrote. Once this process is activated, cancer cells can invade healthy tissue and cause tumor proliferation.
and green tea extracts can destroy the "actin remodeling" process, making cancer cells stick together, its movement is hindered, in addition it can make cancer cells accelerated aging.
Rao Jianyu said cancer cells are "aggressive" and that green tea extracts break the path of "aggression", limiting cancer cells and making them "localized", making cancer treatment and prognosis work relatively simple. Earlier, some research has revealed that green tea extracts have an effect on many cancers, including bladder cancer, which can cause cancer cells to die prematurely and block the blood supply of tumor tissue.
Rao Jianyu told Xinhua that some members of their research team were verifying the efficacy of green tea extracts in other cancers, such as gastric cancer. Unlike previous studies, he says, the green tea extract they use is very similar to drinking green tea, which means that drinking green tea may have some anti-cancer effects, at least to enhance the body's ability to defend against cancer.
However, the researchers also believe that at present they only have a limited number of bladder cancer cells, to reveal the anti-cancer mechanism of green tea has yet to be further study. Other scientists commented on the same day that the findings further confirmed the potential of green tea in the prevention and treatment of cancer.
Especially in the treatment of bladder cancer, new results can help to detect bladder cancer susceptibility and reduce morbidity.
Since the Gomberg of free radicals (tripheylemthylradical) theory in the 1900, the research on free radicals has been deepened gradually. Although the antioxidant capacity of the traditional synthetic antioxidants is stronger, however, long-term consumption has potential toxicity, some even produce teratogenic, carcinogenic effect, and therefore more and more people's rejection; bee pollen is the pollen grains collected from flowers, contain flavonoids, vitamins, hormones, nucleic acids, enzymes and trace elements, and have anti-aging effect , is a good antioxidant food. The antioxidant effects of Pueraria lobata, Eucommia ulmoides leaves, medlar, Orange Hovenia, Poria Cocos, Schisandra chinensis, ginkgo biloba, bamboo leaves, lemon, citrus and propolis have been proved experimentally. Therefore, it is of great significance for the food and pharmaceutical industry to select substances with antioxidant and free radical scavenging activity from natural products.
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