How is gastric cancer caused
summary
In today's society, there are more and more people suffering from cancer. We should also know that cancer is a terminal disease, but it is not impossible to cure it. Today I will talk about how gastric cancer is caused. Please be patient. How is gastric cancer caused.
How is gastric cancer caused
First: N-nitroso compounds: in 1956, Magee et al. Proved that dimethylnitrosamine has carcinogenic effect, and successfully induced liver cancer in rats. Later, more than 200 kinds of nitroso compounds were confirmed to be carcinogenic in animals. Some can also induce gastric cancer in a variety of animals. In human, the content of nitrosamine precursor nitrite in gastric juice has a very obvious correlation with the prevalence of gastric cancer.
Second, the influence of dietary factors on the incidence of gastric cancer has attracted the attention of tumor researchers in various countries. The possible dietary carcinogenic factors were frequent consumption of smoked, baked food (containing benzopyrene) or pickled food, pickled cabbage (containing N-nitroso compounds).
Third, the infection rate of Helicobacter pylori increased; the positive rate of Helicobacter pylori antibody in the serum of patients with gastric cancer was significantly higher than that in the control group, which was a risk factor for gastric cancer.
matters needing attention
When gastric cancer metastasis occurs, it will directly spread to our pancreas, transverse colon, liver and other adjacent pancreas, and may also pass through lymph node metastasis. We will have hepatomegaly, jaundice and other symptoms.