胃癌是什么原因引起的?胃炎与胃癌自我辨别

 2024-08-21 14:47:30  阅读 27  评论 0

摘要:胃癌是一种常见的消化系统恶性肿瘤,其发生与多种因素有关,包括幽门螺杆菌感染、长期食用腌制食品、慢性非萎缩性胃炎、遗传因素以及吸烟等,了解胃癌的病因对于预防和早期诊断至关重要。

胃癌是一种常见的消化系统恶性肿瘤,其发生与多种因素有关,包括幽门螺杆菌感染、长期食用腌制食品、慢性非萎缩性胃炎、遗传因素以及吸烟等,了解胃癌的病因对于预防和早期诊断至关重要。

胃癌是什么原因引起的

1、幽门螺杆菌感染

幽门螺杆菌感染是胃癌的一个重要致病因素,HP能够在胃内环境中生存,并能促进硝酸盐转化为亚硝酸盐及亚硝胺,这类物质具有致癌作用。

HP感染通常先引起慢性胃炎,进一步可能导致胃黏膜萎缩和溃疡,逐步向胃癌演变。

2、长期食用腌制食品

腌制食品,特别是含有亚硝酸盐的食品,在胃内被细菌转化为亚硝胺类化合物,这些物质具有致癌作用,长期摄入此类食品会增加患胃癌的风险。

3、慢性非萎缩性胃炎

慢性非萎缩性胃炎是胃黏膜存在的慢性炎症反应,长期的炎症刺激可能导致细胞异常增生并发展成癌症。

患者可在医生指导下使用药物进行治疗,如质子泵抑制剂等。

4、遗传因素

家族中有胃癌病史的人群,其胃癌的发病率较普通人群高出2-3倍,这表明遗传在胃癌的发生中也占有一定的比重。

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