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相关文章How is cancer developed ?
Cancer is essentially a disorder of cellular genetic material The development of cancer is composed of a series of complex processes of cellular and molecular changes. Active oxygen species and other free radicals have long been known to be the cause of it. There is also evidence that they are playing a big role in tumour promotion and even malignant conversion.
What kind of damaging does free radical do to our cells inside body everyday?
1. Lipid peroxidation: Free radical attacks the cell membranes by oxidising reaction.
2. Protein Damage: The damaging happened while the protein binds a transition metal ion (Marx G, Chevion M; 1986 and Stadtman ER, Oliver CN; 1991).
3. DNA Damage: Oxidising radicals readily attack DNA if they are formed in its vicinity as has been clearly the case demonstrated by radiation biologists.
Free radical production is universal in all respiring organisms and is enhanced by many conditions like smoking, Excessive alcohol consumption, UV Radiation (UVA and UVB, including sunburn and premature ageing of the skin), stress, disease processes, and also carcinogen exposure.
The benefit of tea:
There is increasing evidence that specific substances found in certain foods can enhance general healthy eating recommendations e.g. phenolic compounds found in plants. Tea is rich in specific phenolic compounds including flavonoids.
Flavonoids are powerful antioxidants in human-being and have been identified as potential cancer preventative components. Tea has been shown to inhibit the cancer at the stages of initiation, promotion and progression.
It is suggested that drinking green tea with healthy eating dietary can reduce the rish of developing cancer which help to maintain overall health and well-being.
