目的：基于脑-肠轴学说，探讨通腑泄热法对脑膜炎发热大鼠的退热效应及免疫调控作用。方法采用埃希氏大肠杆菌小脑延髓池注射建立大鼠细菌性脑膜炎发热模型。实验动物随机分为6组：正常组、模型组、大承气汤组、醒脑静注射液组、大承气汤合醒脑静注射液组、扑热息痛组。观察各组用药后的退热效果，同时检测血浆中 IFN-γ、IL-4的含量变化，及组织、血浆中P物质的含量。结果大承气汤和醒脑静注射液及大承气汤合醒脑静注射液组均能有效治疗脑膜炎发热，与模型组比较有显著的解热效果（P＜0．05），能降低血浆中 IFN-γ（P＜0．01）、IL-4（P＜0．05）水平，下调 IFN-γ／IL-4的比值（P＜0．05），并且能降低发热大鼠P物质含量（P＜0．05）。结论通腑泄热法对脑膜炎发热有较好的解热效果，这可能与其通过脑肠轴元件生物介质调节机体免疫功能有密切关系。%OBJECTIVE Based on the brain-gut axis theory,to investigate the antipyretic effect and immune regulation function of Tongfu Xiere therapy in fever rats with meningitis.METHODS The rat fever model induced bacterial Meninggitis was established with inj ecting the Escherichia coli into cerebellomedullary cistern.The experimental animals were divided into six groups:the normal group,the model group,Dachengqi decoction group,Xingnaoj ing inj ection group,Dachengqi decoction+Xingnaojing injection group and paracetamol group.Antipyretic effect of each drug was observed by measuring body temper-ature after treatment.The levels of IFN-γ,IL-4 and SP in plasma were detected by enzyme-linked immunosorbent assay.RE-SULTS Compared to the model group,Dachengqi decoction group,Xingnaojing injection group and Dachengqi decoction+Xingnaojing injection group significantly reduced the temperature of the fever rats(P<0.05),the levels of IFN-γ(P<0.01), IL-4(P<0.05)and SP(P<0.05),and the ratio of IFN-γ/IL-4(P<0.05).CONCLUSION Tongfu Xiere therapy shows anti-pyretic effect on fever rats with Meningitis,which is related to immune regulation biologically mediated by brain-gut axis com-ponents.
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