摘要
目的:探讨葛根芩连汤整方剂量变化治疗溃疡性结肠炎的量效关系,获得基于药效学的经方“剂量阈”。方法:采用2,4,6-三硝基苯磺酸(TNBS)/乙醇法诱导溃疡性结肠炎实验大鼠模型,正常组除外,分为:正常组、溃疡性结肠炎模型组、柳氮磺吡啶肠溶片组,葛根芩连汤整方剂量变化的9个剂量组(分别为生药1.65,4.95,8.25,11.55,14.85,18.15,21.45。24.75,28.05g·kg-1),给药1次/d,共5d。观察大鼠的一般情况,计算大鼠疾病活动指数(DAI)指数,比色法检测匀浆上清液髓质过氧化酶(MPO)、丙二醛(MDA)、超氧化物岐化酶(SOD)活性;经GraphPadPrism6软件拟合量效曲线,评价葛根芩连汤治疗溃疡性结肠炎模型大鼠的量一效关系,计算相关剂量参数。结果:综合实验数据分析,以MPO活性为指标,经Graph Pad Prism6Demo拟合后,拟合方程与模型相似度高,量效曲线呈反向“s”型,且有意义,算出的剂量阈参数如下:[D]20-[D]80为15.39~17.11g.kg-1,中位剂量:[D]50 16.25g·kg-1,阈剂量:[D]20 15.39g·kg-1。结论:葛根芩连汤治疗治疗溃疡性结肠炎模型大鼠的量一效曲线呈现反向“s”型,提示其中剂量为有效治疗范围,即大致在15.39~17.11g·kg-1。
Objective: To explore the dose-effect relationship and 'dose threshold' parameter of Gegen Qinlian decoction in treating the picrylsulfonic acid solution (TNBS) indeced-ulcerative colitis rats. Method: The experimental ulcerative colitis model induced by TNBS/ethanol, except for the normal group, then divided into model group, sulfasalazine group, and Gegen Qinlian decoction 1.65, 4.95, 8.25, 11.55, 14.85, 18.15, 21.45, 24.75, 28.05 g.kg-1, administered once a day for 5 days. then measured and calculated the disease activity index (DAI) index, and detected the myeloperoxidase (MPO), malondialdehyde (MDA), superoxide dismutase (SOD levels in tissue homogenate. Through used the GraphPad Prism 6 softwaie to establish the dose- response and calculate the dose-related parameters. Result: By the comprehensive analysis of experimental data, the dose-effect relationship of MPO appeared the ' S' shape, and the dose threshold parameters are as follows : D20-D80 15.39-17. 11 g. kg-1, median dose: D50 16.25 g.kg-1, the threshold dose: D20 15.39 g .kg-1. Conclusion: Gegen Qinlian decoction showed dose-response curves as 'S' shape in treatment of ulcerative colitis rats, suggesting a dose-dependent range is between 15.39 g.kg-1 to 17.11 g .kg-1.
出处
《中国实验方剂学杂志》
CAS
北大核心
2014年第4期131-134,共4页
Chinese Journal of Experimental Traditional Medical Formulae
基金
国家重点基础研究发展计划(973计划)项目(2010CB530603)
国家自然科学基金项目(81160424)
江西省科技支撑项目(20111BBG70005-1)