liver cancer

Experts believe that the life of the carcinogenic substances that there are all sorts of phenomena, it should be to inform the public and popularize scientific knowledge, so that the public can have a correct understanding of the scientific, neither complacent nor panic.

Experts pointed out that life may cause human carcinogen are many factors. 70% -80% of the human tumors environmental carcinogens factors. Life and the common major cancer-related factors are the following:
1, smoking and passive smoking benzene in the smoke and tar and other carcinogens, the cause of lung cancer, laryngeal cancer, and other cancers.

Second, excessive alcohol drinking is not the direct cause of cancer. But alcohol can promote the growth of cancer, also increase the ability of tobacco carcinogens.

Third, Gaozhifangyinshi fat itself is not a carcinogen, but excess fat can promote the growth of cancer cells. Gaozhifangyinshi will increase colon cancer, breast cancer, prostate cancer risk.
4, preserved foods marinated barbecue, ham, hot dogs, sausage, luncheon meat, bacon and pickled vegetables and other foodstuffs added nitrite poisoning changed to prevent meat, and meat was bright red. But nitrite into the human body is nitrosamine formation of gastric cancer, a major cause of esophageal cancer.

5, mouldy food in the moldy peanuts, grains, nuts and rice, contained aflatoxin, which is a strong carcinogen. Africa, China, Southeast Asia and the aflatoxin content of liver cancer is directly related to high.

6, fried food when the oil temperature over 200 degrees Celsius temperature, the proteins in food, fatty degeneration, a strong carcinogenic polycyclic aromatic hydrocarbons, heterocyclic amines. Shaoyu fat, fried foods after repeated long black grease and protein fried Coke, it can produce a strong carcinogens such as benzopyrene. The starch in grain baked at high temperature will arise after bombing propylene amine harmful substances such as phenol. Long-term consumption of repeated frying oil fried foods, it may cause cancer.
7, Xinxiang food too spicy or excessive consumption of cinnamon, fennel, Chinese prickly ash, and so will promote the growth of cancer cells, speed up the deterioration of cancer.嗜chewing betel nut can be induced by oral cancer.

Other carcinogens in life such as family and decorating, kitchen grease, ultraviolet, hepatitis B virus and occupational exposure to certain chemicals, dyes, pesticides and drugs.
However, the experts stressed that the life of the carcinogenic factors must establish a scientific understanding of the following:

First, the animal is not carcinogenic human carcinogen. Determine whether a carcinogenic compounds, it is not carcinogenic in humans on the test. At present the carcinogenic effect that the majority of the conclusions from animal experiments, the use of larger doses. Whether such animals can be inferred conclusions to humans still controversial. At present only a few examples such as arsenic through the crowd after the epidemiological investigation obtained. Therefore, the above-mentioned carcinogens, the vast majority should be regarded as suspicious of carcinogens or tumor promoter, although this should be brought to our attention, to avoid the harm.

Secondly, the occurrence of cancer is a long process. The occurrence of cancer in general can be divided into three stages, first of all, is the start-up phase. Carcinogens enter the body to a certain organ (target organ), to target cells in DNA damage and cell mutation occurred, a latent cancer cells, this process a few minutes to complete. After launching the cancer essential factors for tumor promoter, can multiply, is the promotion stage. Finally, the evolution stage for the development of cancer can be diagnosed. "Promote" and "evolution" process required after a few years to several decades. On the other hand, the human target cells repair damage, but also have anti-cancer immune function. Cancer is therefore both in vivo and in vitro interaction between the various factors, the ultimate result is multi-factor, multi-stage of the carcinogenic process.
Thirdly, genetic polymorphism. The same crowd of carcinogens in different individuals are inconsistent with the carcinogenic effects, that is, genetic polymorphism (susceptibility). Different individuals sensitivity to chemical carcinogens is very different.

Fourth, the carcinogens can be safe access. Carcinogens must reach a certain dose can be a carcinogenic effect, but the need to keep some contact time. Do not have these two conditions, it may not necessarily be carcinogenic.

Fifth, to weigh the pros and cons of carcinogens. Benzene can lead to leukemia, but a wide range of industrial uses, still in use today. Large doses of saccharin can be carcinogenic, but the small dose of saccharin beneficial for diabetes. Triclosan to the protection of the mouth, gums useful. A small dose of arsenic treatment. Chinese herbal medicine in the role of most leaded Anshen. Low doses of arsenic and lead are beneficial. Many chemicals are carcinogenic risks, we must balance the interests and harm, and then make a choice and disposal.

Sixth, the cancer can be prevented. The experts stressed that with the deterioration of the environment, human exposure to carcinogens are bound to be factors, but at the same time, some in the day-to-day consumption of natural food out of the anti-carcinogenic substances. Such as cereals, vegetables and fruits in dietary fiber, vitamin C, beta-carotene, lycopene, and so on.