A series of causes of nasopharyngeal cancer

Nasopharyngeal carcinoma is a tumor that occurs in the nasopharyngeal mucosa. The disease has a wide range of incidence and generally occurs in middle-aged and elderly people. So what are the causes of nasopharyngeal carcinoma ? The following is a detailed answer from relevant experts.

1. Genetic factors: Based on the research on cell chromosomes and human histocompatibility antigens (HLA), the obvious ethnic clustering of nasopharyngeal carcinoma leads to the assumption that nasopharyngeal carcinoma may be a disease related to polygenic genetic factors. This is the cause of nasopharyngeal carcinoma.

2. Environmental factors: Environmental factors are also a cause of nasopharyngeal cancer. Eating too much salted fish, cured meat and pickled foods containing nitrosamine compounds can induce nasopharyngeal cancer. Drinking water has high levels of nickel and lead, while zinc, copper and cadmium are relatively low. Rice has a high nickel content, while molybdenum, chromium, lead and cadmium are low. Changes in these trace elements may also be related to the occurrence of nasopharyngeal cancer. In Guangdong, the survey found that the content of trace element nickel in rice and water in areas with a high incidence of nasopharyngeal cancer is higher than that in areas with a low incidence. The nickel content is also high in the hair of nasopharyngeal cancer patients. Animal experiments have shown that nickel can promote nitrosamine-induced nasopharyngeal cancer.

3. Epstein-Barr virus: Lymphoblastoid cell lines carrying Epstein-Barr virus were isolated from nasopharyngeal carcinoma tissues, and Epstein-Barr virus particles were found. High titer antibodies to Epstein-Barr virus exist in nasopharyngeal carcinoma, and the titer is high in severe cases. As the disease recovers, the antibody titer decreases, indicating that Epstein-Barr virus is closely related to nasopharyngeal carcinoma.

The above is an introduction to the causes of nasopharyngeal carcinoma. I believe everyone should have a certain understanding of nasopharyngeal carcinoma. If you want to know more about nasopharyngeal carcinoma, please consult online experts.