Experts reveal the three main causes of nasopharyngeal cancer

Nasopharyngeal carcinoma is a malignant tumor that seriously threatens the life and health of patients and is extremely harmful to patients. What are the causes of nasopharyngeal carcinoma ? Let the experts tell you about the common causes of nasopharyngeal carcinoma.

In general, the common causes of nasopharyngeal cancer are:

1. Environment and diet

Environmental factors are a common cause of nasopharyngeal cancer. It is reported that among Chinese Americans, the second generation born in the United States has a lower risk of nasopharyngeal cancer than the first generation born in Asia, while white people born in California in Southeast Asia have a higher risk of nasopharyngeal cancer than those born in the United States. In Guangdong, a 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. Nickel may be a cancer-promoting factor. Dinitrosopyrazine (DNP) is related to the occurrence of nasopharyngeal cancer. Eating salted fish and pickled foods is a high-risk factor for nasopharyngeal cancer in southern China, and is related to the age, duration, frequency and cooking method of eating salted fish. This is related to the high concentration of nitrosamine compounds in salted fish and pickled products.

2. Epstein-Barr virus infection

EB virus-infected cells can produce a variety of EB virus-specific antigens, including early antigen (EA), capsid antigen (VCA), membrane antigen (MA) and nuclear antigen (NA), which are common causes of nasopharyngeal carcinoma. After the human body is infected with EB virus, it will produce various corresponding antibodies. The positive rates of EB virus EA-IgA and VCA-IgA antibodies in nasopharyngeal carcinoma patients were 96% and 81.5%, respectively, indicating that these two antibodies can be used as serological diagnostic markers for nasopharyngeal carcinoma, but the positive rate of EA-IgA antibodies in normal people is higher, and it is not as specific as VCA-IgA in diagnosing nasopharyngeal carcinoma. Further studies have shown that the detection of EA-IgA antibodies in serum is more specific than VCA-IgA antibodies, but not as sensitive as VCA-IgA. People who are positive for VCA-IgA antibodies are at high risk of developing nasopharyngeal carcinoma.

3. Genetic factors

There is a racial and familial clustering of nasopharyngeal carcinoma patients. Nasopharyngeal carcinoma may be a hereditary disease. Recently, the correlation between certain genetic factors that determine HLA and nasopharyngeal carcinoma has been discovered. It has been reported that chromosomal aberrations in peripheral blood lymphocytes in families with a high incidence of nasopharyngeal carcinoma are related to a certain degree of genetic susceptibility to nasopharyngeal carcinoma. This may also be a common cause of nasopharyngeal carcinoma.

The above is an introduction to the common causes of nasopharyngeal cancer. I believe everyone has some understanding of the causes of nasopharyngeal cancer. Understanding and recognizing the causes of nasopharyngeal cancer can help patients receive more correct treatment for nasopharyngeal cancer.

For more information, please visit the nasopharyngeal carcinoma disease topic at http://www..com.cn/zhongliu/bya/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.