Effect of electroacupuncture at“ Zúsānlǐ”(足三里 ST 36) and other lower he-sea points on the expression of TNF-α and NF-κB of acute gastric mucosal lesion rats

电针“足三里”等下合穴对急性胃黏膜损伤大鼠TNF-α及NF-κB等的影响（英文）

Objective To contrastively observe the effect of electroacupuncture at lower he-sea points of stomach, large intestine, small intestine and gallbladder of acute gastric mucosal lesion（AGML） model rats on the expression of serum high mobility group protein B 1（HMGB 1）, tumor necrosis factor-α（TNF-α） and nuclear factor-κB（NF-κB） of gastric tissue, and to explore whether the lower he-sea points of stomach have relative specificity in treatment of stomach diseases. Methods Seventy healthy SD rats were randomly divided into seven groups, including control group, model group, ＂Zúsānlǐ＂（足三里 ST 36） group, ＂Shàngjùxū＂（上巨虚 ST 37） group, ＂Xiàjùxū＂（下巨虚 ST 39） group, ＂Yánglíngquán＂（阳陵泉 GB 34） group and ＂Chéngjīn＂（承筋 BL 56） group, with five male rats and five female rats in each group. Acute gastric mucosal lesion model was established by applying WRS method. After successful modeling and treatment for ten days, sampling was conducted, gastric mucosal lesion was observed visually and scored, the levels of serum HMGB 1 and gastric tissue TNF-α were detected by ELISA method, and the expression of NF-κB was detected by immunohistochemical method. Results①Compared with the model group, the levels of Ulcers and inflammation（UI） in gastric mucosal and serum HMGB1, and the expression of gastric tissue TNF-α and NF-κB in the four lower he-sea points groups reduced（P〈0.01 or P〈0.05）;② compared with ST 36 group, the levels of gastric mucosal UI and serum HMGB1, and the expression of gastric mucosal TNF-α and NF-κB in other treatment groups increased significantly, and the difference was statistically significant（P〈0.01 or P〈0.05）. Conclusion①Electroacupuncture at relevant lower he-sea points can inhibit the body＇s immune response, relieve inflammatory reaction and reduce mucosal lesion by regulating HMGB 1, TNF-α and NF-κB, so as to realize the intervention and treatment on AGML rats;② the total intervention effect in ST 36 group is superior to that in other groups, indicating partially that there is a relative specificity between ST 36 and stomach.

目的:横向对比观察电针急性胃黏膜损伤(AGML)模型大鼠胃、大肠、小肠、胆的下合穴对血清高迁移率族蛋白1(HMGB1)及胃组织肿瘤坏死因子α(TNF-α)、核转录因子-κB(NF-κB)表达的影响,探讨胃腑下合穴治疗胃腑病变是否存在相对特异性。方法:将70只健康SD大鼠随机分为空白、模型、足三里、上巨虚、下巨虚、阳陵泉及承筋组共7组,每组10只,雌雄各半,除空白组外均采用WRS法诱导建立急性胃黏膜损伤大鼠模型,造模成功并治疗10 d后,取材,肉眼观察胃黏膜损伤并评分,ELISA法检测血清HMGB 1及胃组织TNF-α含量,免疫组化法检测胃组织NF-κB的表达。结果:(1)与模型组比较,4个下合穴组胃黏膜UI、血清HMGB 1含量及胃组织TNF-α、NF-κB表达均较低,差异有统计学意义(P<0.01或P<0.05);(2)与足三里组比较,其他治疗组胃黏膜UI、血清HMGB 1含量和胃TNF-α、NF-κB表达均明显偏高,差异有统计学意义(P<0.01或P<0.05)。结论:(1)电针相关内腑下合穴均可通过调节HMGB 1、TNF-α、NF-κB抑制机体免疫应答,减轻炎性反应,降低黏膜损伤等来实现对AGML模型大鼠的干预治疗作用;(2)足三里组的总体干预效应优于其它治疗组,部分说明足三里穴与对应胃腑之间存在相对特异性。