活血化瘀中药对慢性萎缩性胃炎大鼠细胞增殖及凋亡的影响

[目的]在慢性萎缩性胃炎(CAG)大鼠模型上观察活血化瘀中药对CAG细胞增殖、凋亡的影响。[方法]对综合法制作的CAG大鼠模型给予活血化瘀中药预防及治疗。CAG的核仁组成区相关嗜银蛋白(AgNOR)计数采用AgNO3染色法,增殖细胞核抗原(PCNA)指数采用抗生蛋白链菌素——生物素免疫组化标记(LSAB)法,细胞凋亡检测采用原位末端标记染色法。[结果]0AG大鼠的胃粘膜细胞AgNOR计数、PCNA指数及凋亡指数均明显高于正常组(均P＜0．01);活血化瘀中药预防和治疗组对其均有明显的抑制作用(与模型组比较,P＜0．05或P＜0.01)。[结论]活血化瘀中药通过对CAG细胞增殖及凋亡的改变进而恢复CAG的细胞及腺体数目是其防治CAG的作用机理之一。

Effect of Blood-activating and Stasis-removing Herbs on Proliferation and Apoptosis of Gastric Mucosa Cells in Experimental Chronic Atrophic Gastritis Rats

[Objective] To observe the effects of blood-activating and stasis-removing (BASR) herbs on the proliferation and apoptosis of gastric mucosa cells (GMC) in experimental chronic atrophic gastritis (CAG) rats. [Methods] CAG rat models were established with comprehensive method and then were given BASR herbs. Argyrophilic protein of nucleolar organizer regions ( AgNOR) count was carried out after silver nitrate staining. The expression of proliferating cell nuclear antigen (PCNA) was examined with immunohistochemical method and apoptosis was detected by in-situ cell-end labeling method. [Results] The number of AgNOR and the indexes of PCNA and apoptosis were increased in CAG model rats ( P < 0.01 as compared with those in normal rats) and then were decreased after the adminstration of BASR herbs ( P < 0.05 or P <0.01 as compared with those in model rats). [Conclusion] The down-regulatory effect of BASR herbs on the proliferation and apoptosis of GMC may be one of its preventive and therapeutic mechanisms for CAG.