天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (11): 1699-1705.doi: 10.16333/j.1001-6880.2016.11.003

• 研究论文 • 上一篇    下一篇

铁皮石斛抗阿司匹林诱导急性胃黏膜损伤活性组分筛选及作用研究

杨传玉1,2,刘帆1,2,吴耽1,2,王爱民1,2*,刘亭1,3   

  1. 1 贵州医科大学药学院;2 民族药与中药开发应用教育部工程研究中心;3贵州省药物制剂重点实验室,贵阳 550004
  • 出版日期:2016-11-30 发布日期:2017-03-30

Screening of Active Sites in Dendrobium officinale Kimura et Migo on Aspirin-induced Gastric Mucosal Injury in Rats and Investigating Mechanism

YANG Chuan-yu1,2,LIU Fan1,2,WU Dan1,2,WANG Ai-min1,2*,LIU Ting1,3   

  1. 1 School of Pharmacy,Guizhou Medical University;2Engineering Research Center for the Development and Application of Ethnic Medicine and TCM,Ministry of Education; 3 Guizhou Provincial Key Laboratory of Pharmaceutics,Guiyang 550004,China
  • Online:2016-11-30 Published:2017-03-30

摘要: 筛选铁皮石斛抗阿司匹林诱导急性胃黏膜损伤的活性组分,并探讨其抗胃粘膜损伤的作用。体外采用阿司匹林诱导人胃黏膜上皮GES-1细胞氧化应激损伤,铁皮石斛各组分预保护GES-1细胞24 h,MTS法检测细胞存活率,并通过比色法测定细胞上清液中乳酸脱氢酶LDH含量;体内采用阿司匹林建立SD大鼠急性胃黏膜损伤模型,灌胃给予铁皮石斛各组分,连续给药7 d后以溃疡指数评价铁皮石斛各组分抗阿司匹林致胃黏膜损伤作用,并通过测定胃液量、总酸度、胃蛋白酶活力、血清中一氧化氮(NO)、肿瘤坏死因子-α(TNF-α)、 白介素-6(IL-6)以及胃组织中超氧化物歧化酶(SOD)、丙二醛(MDA)、前列腺素E-2(PGE-2),分析其可能的作用机制。结果表明,与模型组比较,铁皮石斛多糖组受损细胞活力显著升高,细胞上清液LDH含量显著降低,其它各组分细胞存活率及细胞上清液LDH含量与模型组无显著性差异;与模型组比较,铁皮石斛多糖组分显著降低胃溃疡模型大鼠的胃溃疡指数,抑制胃液分泌和胃酸含量及降低胃蛋白酶活性;与模型组比较,铁皮石斛多糖各组大鼠血清NO明显升高,TNF-α、IL-6显著降低,铁皮石斛多糖各组大鼠胃组织MDA水平明显降低,SOD、PGE-2水平显著升高。铁皮石斛多糖有显著的抗阿司匹林诱导胃黏膜损伤作用。

关键词: 铁皮石斛, GES-1细胞, 阿司匹林, 胃黏膜损伤, 多糖

Abstract: To screen active sites and investigate the protective effect of Dendrobium officinale Kimura et Migo on aspirin-induced gastric mucosal injury in rats as well as the possible mechanism.Human gastric epithelial cell line GES-1 was cultured in vitro, and pretreated with different concentrations of D.officinale extracts before aspirin treatment;MTS assay was used to detect the cell viability.The content of LDH was also determined by the LDH kit.Gastric mucosal injury models induced by aspirin in SD rats was established by intragastric administration of different doses of D.officinale for seven days,and ulcer area was assessed to analyze the effect of D.officinale on gastric mucosal injury induced by aspirin in rats.The content of gastric secretion,gastric acid,pepsin,NO,TNF-α, IL-6, SOD,MDA and PGE-2 were measured to analyze the mechanism.The results showed that the cell viability of polysaccharide fraction of D.officinale increased significantly.The content of LDH significantly decreased,and other group was not significantly different.Compared with aspirin-treated group,the content of gastric secretion,gastric acid,pepsin and gastric ulcer area of polysaccharide group rats was significantly reduced;Compared with aspirin-treated group,NO,SOD and PGE-2 of polysaccharide group rats was significantly increased,while the content of TNF-α,IL-6,MDA were significantly decreased.In conclusion, D.officinale polysaccharide had a significant anti-acute gastric ulcer effects induced by aspirin.

Key words: Dendrobium officinale Kimura et Migo, GES-1 cells, aspirin, gastric ulcer, polysaccharide

中图分类号: 

R285.5