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胃癌组织中ＥＢ病毒的检出率因地区而异。为调查黑龙江地区胃癌ＥＢ病毒核酸的存在情况，我们用聚合酶链式反应（ＰＣＲ）法特异性扩增本地区经临床病理确诊的胃癌组织中ＥＢ病毒ＥＢＮＡ１基因区域，结果２９例标本中有６例检出ＥＢ病毒ＤＮＡ，且胃癌病理类型均是胃腺癌，提示本地区胃癌特别是胃腺癌的发生与ＥＢ病毒感染密切相关。
The detection rate of Epstein-Barr virus in gastric cancer tissues varies from region to region. To investigate the presence of Epstein-Barr virus nucleic acid in Heilongjiang, we used the polymerase chain reaction (PCR) method to specifically amplify the Epstein-Barr virus EBNA1 gene region in clinically pathologically confirmed gastric cancer tissue. Results showed that 6 out of 29 specimens were found. Cases of Epstein-Barr virus DNA were detected, and the pathological types of gastric cancer were gastric adenocarcinomas, suggesting that the occurrence of stomach cancer, especially gastric adenocarcinoma in this area is closely related to EB virus infection.