Liver cancer 7 crimes warrant_China Cancer Research
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Liver cancer 7 crimes warrant

Time:2009-11-05 14:42  Author:admin Hits:

Liver cancer is one of common malignant tumors in China, high mortality, in the overall cancer mortality, second only to the stomach, according to extensive research data analysis at home and abroad that the main causes of liver cancer occurred in the following categories:

(1) chemical carcinogens:

Chemicals that can cause liver cancer with the main N-nitroso compounds, such as nitrosamines, and nitrosyl amide, etc.. In addition, pesticides, alcohol, safrole, are also able to induce liver cancer.

(2) Water pollution:

The serious pollution of drinking water quality, is one of the important causes of liver cancer occur, particularly in contaminated ditch water, followed by river water and well water a minimum. Therefore, in the absence of running water facilities in rural areas, drinking well water should be promoted.

(3) Viral Hepatitis:

Mainly B and hepatitis C virus infection, especially hepatitis B and hepatitis B virus carriers, the incidence of primary liver cancer than 2 ~ 100-fold higher than normal; in liver cancer-prone areas, some 20% of people may be hepatitis B or hepatitis B virus carriers.

(4), aflatoxin (AFT):

To aflatoxin B as the most important carcinogens. Suitable for high temperature, high humidity climatic conditions in the growth and reproduction, particularly in the summer of rot food and grain, feed, etc., the most susceptible to Aspergillus flavus produces aflatoxin contamination, long-term consumption of food containing this toxin can induce liver cancer .
(5) Other factors:

Nutrient excess (large number of nutrients), or nutritional deficiencies (such as vitamins A, B1 deficiency), blood diseases, parasitic infections, and heredity, but also induce liver cancer risk factors.

(6) immunization status:

Some people think that liver cancer patients contain a blocking factor in plasma, can inhibit the cell-mediated immunity and protect liver cells from immune cell killing. Has been shown that alpha-fetoprotein (AFP) will be able to inhibit lymphocyte and macrophage phagocytosis.

(7) gene mutation:

In recent years, was also expressed that the original mutations in the environment and the effects of the virus to stimulate liver cell division reaction pathway activation, causing cell mutation and gene translocation, is to accelerate the proliferation of cancer cells possible factors.

In addition, the incidence of liver cancer with non-blood protein in the regulation of nuclear protein on the cell cycle disorders, and cell internal and external factors such as cyclic nucleotides, hormones, peptides, growth factors and other relevant polyamines.