摘要
目的探讨连朴饮通过调控NLRP3活化改善功能性消化不良(Functional dyspepsia,FD)大鼠十二指肠微炎症状态的作用研究。方法Wistar大鼠随机划分为空白组和造模组,通过碘乙酰胺法(含0.1%碘乙酰胺的2%蔗糖溶液灌胃)复建FD大鼠,并进行模型验证。将FD模型大鼠随机数表达法随机分为模型组、连朴饮组及莫沙必利组,给药2周后测定每组动物体质量、3 h进食量、胃排空率及肠推进率;对十二指肠组织HE染色观察胃十二指肠病理结构;ELISA法对每组血清IL-1β、IL-18的含量展开测定;Western Blot法对每组十二指肠组织内NLRP3、Caspase-1蛋白表达量展开测定;IF法对NLRP3、Caspase-1蛋白表达量展开测定。结果与空白组相比,模型组体质量、3 h进食量、胃排空及肠推进率均显著下降(P<0.01),十二指肠组织出现炎性浸润。模型组十二指肠组织内NLRP3、Caspase-1蛋白表达量,以及血清IL-1β、IL-18的含量皆显著增加(P<0.05);相比模型组,莫沙必利组与连朴饮组体质量、胃排空率及肠推进率皆显著上调(P<0.01),且十二指肠组织炎性浸润减轻,同时连朴饮组、莫沙必利组大鼠十二指肠组织中NLRP3、Caspase-1蛋白表达、IL-1β和IL-18含量显著降低(P<0.05)。结论连朴饮能够使十二指肠微炎症明显减轻,使胃肠恢复动力,对于FD疗效较好,其作用机制与NLRP3活化有关。
Objective To investigate the effect of Lianpu Yin on duodenal microinflammation in rats with functional dyspepsia(FD)by regulating NLRP3 activation.Methods Wistar rats were randomly divided into blank group and model group.FD rats were reconstructed by iodoacetamide method(2%sucrose solution containing 0.1%iodoacetamide),and the model was verified.FD model rats were randomly divided into model group,Lianpu Yin group and Moxapride group by random number expression method.After a period of two weeks of administration,measurements were taken to determine the body mass,three-hour food consumption,as well as the rates of gastric emptying and intestinal propulsion.The pathological structure of duodenal tissue was observed by HE staining.The serum levels of IL-1βand IL-18 were quantified using the enzyme-linked immunosorbent assay(ELISA)method.The expression levels of NLRP3 and Caspase-1 in each group were detected by Western blot.Expression levels of NLRP3 and Caspase-1 proteins were detected by immunofluorescence.Results Compared with the blank group,body weight,food intake at 3 h,gastric emptyand intestinal propulsion rate in model group were significantly decreased(P<0.01),and inflammatory infiltration of duodenum tissue appeared in the model group.Meanwhile,the expressions of NLRP3 and Caspase-1 proteins,as well as the levels of IL-1βand IL-18 in the duodenal tissue of the model group,showed significant increasing(P<0.05).Compared with the model group,rats in the Lianpu Yin and Moxapride groups displayed significant increasing in body weight,gastric emptying rate,and intestinal propulsion rate(P<0.01).Additionally,inflammatory infiltration of duodenum tissue reduced in these groups.Furthermore,NLRP3 and Caspase-1 protein expressions,as well as IL-1βand IL-18 levels,significantly decreased in the Lianpu Yin and Moxapride groups compared to the model group(P<0.05).Conclusion Lianpu Yin can treat FD rats by inhibiting duodenal microinflammation and then restoring gastrointestinal motility,which may be related to the abnormal activation of NLRP3 inflammasome.
作者
张洋
吕文亮
周姝含
毛宁峰
何嘉伟
赵毅
徐子萱
刘玲玲
王雪妍
ZHANG Yang;LYU Wenliang;ZHOU Shuhan;MAO Ningfeng;HE Jiawei;ZHAO Yi;XU Zixuan;LIU Linlin;WANG Xueyan(College of TCM Hubei University of Chinese Medicine,Wuhan 430000,China)
出处
《世界科学技术-中医药现代化》
北大核心
2025年第6期1693-1698,共6页
Modernization of Traditional Chinese Medicine and Materia Medica-World Science and Technology
基金
国家中医药管理局中医药创新团队及人才支持计划项目(ZYYCXTD-D-202203):中医疫病多学科交叉创新团队,负责人:吕文亮
湖北中医药大学“双一流”建设重点类专项科研项目(2023ZZXJB003):慢性胃炎脾胃湿热证生物学基础研究及方证效应验证,负责人:吕文亮
湖北省自然科学基金计划(2023AFD138):基于肺-肠轴菌群稳态与cGAS-STING信号通路探讨清肺达原颗粒“肺肠合治”干预甲型流感病毒感染的生物学机制,负责人:周姝含。
