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ID:15155949
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页数:14页
时间:2018-08-01
《复元胶囊对实验性大鼠骨关节炎软骨中tnf-α和vegf的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、复元胶囊对实验性大鼠骨关节炎软骨中TNF-α和VEGF的影响【摘要】目的观察复元胶囊对实验性大鼠骨关节炎软骨中的TNF-α和VEGF的影响。方法56只SD大鼠随机分为:正常对照组6只,生理盐水灌胃;模型对照组10只,造模后生理盐水灌胃;四环素组,复元胶囊低、中、高剂量组各10只,造模后分别用四环素、复元胶囊不同剂量灌胃。治疗10周后分别取各组胫骨平台关节软骨,采用HE染色进行Mankin’s评分,免疫组织化学染色法测定关节软骨中的TNF-α和VEGF表达的阳性细胞数。结果正常对照组HE染色Mankin
2、’s评分与实验组比较,差异具有统计学意义(P<0.05)。各组关节软骨切片TNF-α和VEGF免疫组化染色分析,正常对照组TNF-α和VEGF与实验组比较,差异具有统计学意义(P<0.05)。结论复元胶囊可能通过调控TNF-α和VEGF抑制炎症和血管增生,从而达到延缓关节软骨退行性改变的作用。【关键词】骨关节炎;复元胶囊;软骨;肿瘤坏死因子α;血管内皮生长因子 Abstract:ObjectiveToobservetheeffectsofFuYuanCapsuleontumornecrosisfac
3、tor-alpha(TNF-α)andvascularendothelialgrowthfactor(VEGF)inosteoarthritis(OA).MethodsFifty-sixSpragneDawley(SD)rats,wererandomly14dividedintofivegroups:normalgroupwith6rats,modelcontrastgroupwith10rats,tetracyclinegroupwith10rats,FuYuancapsulelow,moderat
4、eandhighdoesgroupwith10rats.Thenormalgroupandmodelcontrastgroupwerefedwith0.9N.S,tetracyclinegroupwerefedwithtetracyclineandotherswithFuYuanCapsule.After10weeks,theratsweresacrificed,andthenrattibiaarticularcartilagewasremoved.Sectionsofthearticularcart
5、ilagewerestainedwithhematoxylineosin.ThecartilagehistologicalchangeswereobservedaccordingtothemethodofMankin.ImmunohistochemicalstainingwasperformedtoinvestigatetheexpressionofTNF-αandVEGF.Articularcartilagewereobservedwithmicroscopeandimageanalysismeth
6、odwasusedtomeasuretheexpressionintensityofTNF-αandVEGF.ResultsThereweresignificantdifferencesinMankinscoreamongnormalgroupandothergroups(P<0.05).ImmunohistochemicalstainingindicatedthattheexpressionintensityofTNF-αandVEGFamongnormalgroupandexperimentalg
7、roupsweresignificantlydifferent(P<0.05).ConclusionFuYuancapsulecanprotectthearticularcartilagethroughsuppressingtheTNF-αandVEGFexpressioninchondrocyte,withsuppressinginflammationandandangiogenesis.14 Keywords:Osteoarthritis;FuYuanCapsule;Cartilage;Tumo
8、rnecrosisfactor-alpha;Vascularendothelialgrowthfactor 骨性关节炎(osteoporosisOA)是以中老年人为主的最常见的关节退行性疾病。主要以关节软骨生化代谢异常,关节边缘和软骨下骨损伤,使得骨质增生,骨关节内组织炎性病变为其病理特点,并最终导致关节疼痛、僵硬和功能障碍。国内外有研究表明,骨性关节炎的发生与肿瘤坏死因子α(tumornecrosisfactor-alpha,TNF-α)和血管内皮生
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