The effect of helicobacter pylori in the pathogenic process of oral lichen planus.
Zhang Shuilong, et al.
Department of Oral Medicine, Ninth Peoples Hospital, Shanghai Second Medical Univeristy, Shanghai 200011.
Abstract In order to quest the relationship between oral lichen planus (OLP) and systematic diseases, this study was based on the background of digestive diseases in systemic factors, and PCR was applied to detect helicobacter pylori(HP) in the lesions of 90 OLP cases. The results showed:(1) 60 of 90 OLP cases had positiveness of HP, and there was significant difference comparing with control group(P<0.01); endoscope was adopted to examine HP in stomach mucosal lesions in 45 of 90 OLP patients. There was also significant difference between 45 OLP cases and contral group(P<0.01),and they suffered from different types of chronic gastritis(CG). It is illustrated that OLP and CG may have resemble mechanism, in the meantime, HP may be the direct pathogenic factor of OLP.
Key words Oral Lichen Planus PCR Helicobacter Pylori
实验证明各型慢性胃炎的致病菌是幽门螺旋杆菌(Helicobacter Pylori,简称HP)[1],提示HP与OLP具有某种内在联系。为此,我们应用聚合酶链反应(PCR),对OLP与HP的关系进行了研究与探索,以期阐明OLP的可能发病机制,同时明确皮肤—粘膜损害在本质上有否差异。
材料与方法
1. 病例选择
选取在我科就诊且资料最完整的OLP患者共90例,其中,男性34例,女性56例,男女比例为0.6∶1;年龄最小8岁,最大75岁,平均年龄43.4岁;病程最短1周,最长10年,平均病程1.8年。所有OLP患者的选择均符合如下条件:①7天内未服用抗生素、铋制剂、抗酸制剂或H2受体拮抗剂;②30天内未服用类固醇药物及非类固醇类抗炎药,如阿斯匹林等。另取30例皮肤扁平苔藓(取自于皮肤科且无口腔损害)作对照研究,选择条件同上。
2. 方法
2.1 所有病例均作口腔粘膜白纹区活检与活检标本分切,分别作HE染色和HP-PCR检测。其中45例OLP患者同时作胃镜检查,其胃粘膜活检标本及30例皮肤LP活检标本均作同样检测。
2.2 HP-PCR检测[2]
2.2.1 试剂:HP-PCR检测试剂盒购自上海复华实业股份有限公司生物技术中心。
2.2.2 标本处理
取新鲜活检口腔粘膜及胃粘膜标本,各加入100μl裂解液,混匀,然后加入4μl蛋白酶K,50℃水浴1h,取出后再沸水浴5min,最后离心(15000rpm/min,10min),取10μl做反应。
2.2.3 操作步骤:
先将DNA聚合酶与灭菌双蒸水按1∶3稀释,混匀,4℃贮存备用。①按顺序在50μl无菌塑料离心管中加入:a.18μl反应液;b.20μl稀释后的DNA聚合酶;c.10μl标本处理液或阳性对照(阴性对照加10μl灭菌双蒸水)。②摇匀后加入20μl液体石蜡,短时离心。③置93℃保温4min。④按下列步骤:a.93℃ 30s→b.50℃ 30s→c.70℃ 60s循环35次。⑤最后置72℃5min。