Nasopharyngeal cancer often occurs at the top of the posterior wall of the nasopharynx. The incidence of nasopharyngeal cancer is generally higher in Guangdong. So, what causes nasopharyngeal cancer? Let's explore the causes of nasopharyngeal cancer from the following article. 1. EB virus infection is one of the common causes of nasopharyngeal carcinoma. Virus-infected cells can produce a variety of EB virus-specific antigens, including early antigen (EA), shell antigen (VCA), membrane antigen (MA) and nuclear antigen (NA). After being infected with EB virus, the human body 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. 2. Environmental factors are also one of the factors that induce 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 the white people born in California, Southeast Asia, have a higher risk of nasopharyngeal cancer than those born in the United States. 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. Nickel may be the main factor promoting nasopharyngeal cancer. 3. Patients with nasopharyngeal carcinoma generally have racial and familial clustering, and the cause of nasopharyngeal carcinoma may be a genetic disease. It has been reported that chromosomal aberrations in peripheral blood lymphocytes in families with a high incidence of nasopharyngeal carcinoma are related to genetic susceptibility to nasopharyngeal carcinoma. The above is a detailed description of the causes of nasopharyngeal carcinoma. I hope it can help everyone better understand the knowledge of nasopharyngeal carcinoma and cure it as soon as possible. If you have other questions about nasopharyngeal carcinoma, you can contact our online experts to answer your questions. For more information, please visit the nasopharyngeal carcinoma disease special 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. |
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