How is lung cancer caused

summary

My uncle suffered from lung cancer, and usually like smoking has a lot to do with, smoking has been more than ten years, there are many causes of this disease, understand the pathogenic factors, can be completely prevented. Here's how lung cancer is caused.

How is lung cancer caused

One: smoking at present, studies have concluded that smoking is an important factor leading to lung cancer, mainly because there are more than 3000 chemical substances in tobacco, among which multi chain aromatic hydrocarbons (such as: benzopyrene) and nitrosamines have strong carcinogenic activity. Multi stranded aromatic hydrocarbons and nitrosamines can lead to DNA damage in bronchial epithelial cells through a variety of mechanisms, which can activate oncogenes (such as Ras gene) and inactivate tumor suppressor genes (such as p53, FHIT gene), and then lead to cell transformation and finally canceration.

Hair coloring is the main cause of the high incidence rate of lung cancer in developed countries, mainly due to the pollution of the atmosphere by the harmful substances such as benzopyrene and carcinogenic hydrocarbons, which are produced by burning oil and coal and internal combustion engines in the developed areas of industry and transportation. The incidence rate of lung cancer and smoking may promote each other and play a synergistic role.

Third, family aggregation of genetic factors, genetic susceptibility, decreased immune function, metabolic and endocrine dysfunction may also play an important role in the occurrence of lung cancer. Many studies have proved that genetic factors may play an important role in people and / or individuals susceptible to environmental carcinogens, and then lead to lung cancer.

matters needing attention

Give patients more spiritual comfort, eliminate their fear of death, if it is early detection of lung cancer, active treatment, disease control is very good, do not have too much psychological pressure.