田茸等
摘要:目的 探讨四君子汤对脾气虚证的动态干预效应及作用机制。方法 实验大鼠随机分为正常组、模型组、四君子汤组。除正常组外均以苦寒破气、游泳力竭双因素法复制脾气虚证模型,造模同时四君子汤组给予四君子汤20 g/(kg·d)干预,采用ELISA和放射免疫法检测不同时间点(14、21、28 d)模型大鼠小肠组织及血清中胃泌素(GAS)、胃动素(MTL)、生长抑素(SS)、血管活性肠肽(VIP)的活性,以及四君子汤的干预效应。结果 与正常组比较,模型组大鼠血清和小肠组织中GAS和MTL降低、SS和VIP升高(P<0.05,P<0.01);与模型组比较,四君子汤组大鼠血清和小肠组织中GAS和MTL升高、SS和VIP降低(P<0.05,P<0.01)。结论 脑肠肽在脾气虚证大鼠小肠组织和血清中呈现动态时相性一致的变化,四君子汤可能通过调节大鼠脑肠肽的活性从而发挥其治疗脾气虚证的作用。
关键词:脾气虚证;四君子汤;胃泌素;胃动素;生长抑素;血管活性肠肽;大鼠
DOI:10.3969/j.issn.1005-5304.2015.09.019
中图分类号:R285.5 文献标识码:A 文章编号:1005-5304(2015)09-0068-04
Study On Dynamic Changes of Ghrelin of Spleen-qi-deficiency Rats and Intervention Effects of Sijunzi Decoction TIAN Rong1, GONG Zi-han2, YANG Xiao-yi2, ZHU Li-ming2, DUAN Yong-qiang2, CHENG Ying-xia2, DU Juan2, LI Lan-zhen2, WANG Yan2 (1.Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China;2.Gansu University of Chinese Medicine, Lanzhou 730020, China)
Abstract:Objective To observe the dynamic changes of ghrelin of spleen-qi-deficiency rats and the intervention effects of Sijunzi Decoction. Methods Experimental rats were randomly divided into normal control group, model group and Sijunzi Decoction group. Except for normal control group, spleen-qi-deficiency model was copied through the two-factor methods of breaking qi by bitter cold and swimming exhausted. Meanwhile, Sijunzi Decoction group was given 20 g/(kg·d) Sijunzi Decoction intervention. The activities of GAS, MTL, SS and VIP at different time points (14, 21, 28 d) in intestine and serum were detected by ELISA and RIA. At the same time the intervention effect of Sijunzi Decoction was studied. Results Compared with normal control group, GAS and MTL in intestine and serum of model rats decreased, while SS and VIP increased (P<0.05, P<0.01). Compared with model group, GAS and MTL in intestine and serum of rats in the Sijunzi Decoction group increased, while SS and VIP decreased (P<0.05, P<0.01). Conclusion Ghrelin in intestine and serum of spleen-qi-deficiency rats shows dynamic coincidental changes. Sijunzi Decoction can treat spleen qi deficiency by regulating the activities of rat ghrelin.
Key words:spleen qi deficiency;Sijunzi Decoction;gastrin;motilin;somatostatin;vasoactive intestinal peptide;rats
脾氣虚证证候有食少、纳呆、食欲减退、泄泻或便秘等消化系统表现,以及神疲、精神不振、甚至记忆力减退等中枢神经系统表现,并且两方面临床症状会先后出现或同时出现。这符合现代医学所阐述的
基金项目:国家自然科学基金(81160420);甘肃省自然科学研究基金计划(1010RJZA148);甘肃省教育厅项目(1006-05)
“脑肠轴”理论,即脑肠轴为连接中枢神经系统与胃肠道的神经内分泌双向通路,一方面各种社会应激、情绪变化等作用于高级中枢神经,通过肠神经系统影响胃肠激素的分泌,从而调控胃肠感觉和运动;另一方面,胃肠道本身接收的各种刺激亦作用于肠神经系统,迷走神经反作用于中枢,产生相应反应。因此,脑肠轴实际上是一种脑肠互动[1]。本研究通过分阶段动态检测脾气虚证大鼠血清和小肠组织中脑肠肽的活性,旨在发现脾气虚证大鼠脑肠肽的动态表达是否有一定时相性,以及脑肠肽在不同组织中的表达是否具有一定的规律性,并在此基础上探讨论四君子汤对脾气虚证的动态干预效应及作用机制。……