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时间:2018-07-30
《葛根醇提物对肥胖型型糖尿病大血管损伤大鼠血清svcam》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、葛根醇提物对肥胖型2型糖尿病大血管损伤大鼠血清sVCAM葛根醇提物对肥胖型2型糖尿病大血管损伤大鼠血清sVCAM作者:邓路娟闫铭庞宗然李晓军【摘要】目的通过观察葛根醇提物对肥胖型2型糖尿病(t2dm)大血管损伤大鼠血清可溶性血管细胞黏附分子(svcam-1)、血浆肿瘤坏死因子(tnf-α)含量变化的影响,探讨其对t2dm大血管损伤保护作用的部分机制。方法雄性wistar大鼠30只,每日用自制的脂肪乳1ml/100g灌胃,3周后挑选总胆固醇(tc)、甘油三酯(tg)、低密度脂蛋白(ldl)增高,胰岛素敏感指数下降的肥胖大鼠,空腹6h,尾静脉快速注射链脲佐菌素(stz)30mg/
2、kg,1周后血糖值高于16.7mmol/l的大鼠作为t2dm模型,于成模后3周及6周观察胸主动脉弓的病理改变,证实t2dm大血管损伤模型复制成功。成模大鼠随机分为葛根醇提物组、盐酸二甲双胍组和模型组3组,每组各10只。另取8只正常大鼠为对照组。各组分别给予葛根醇提物0.9g/kg;盐酸二甲双胍0.09g/kg及等剂量自来水,治疗4周后处死各组动物,取血清、血浆分别测定svcam-1、tnf-α的含量。结果模型组大鼠血清svcam-1、血浆tnf-α较正常对照组上调,葛根醇提物组及盐酸二甲双胍组大鼠血清svcam-1、血浆tnf-α的含量均显著降低(p0.05)。WWw..Co
3、m结论葛根醇提物能降低t2dm血管并发症大鼠过高的血清svcam-1、血浆tnf-α的水平,有助于控制t2dm血管并发症的发生发展。【关键词】葛根浸膏制剂(中药)糖尿病2型胞间粘附分子肿瘤坏死因子α血管损伤【abstract】objectivetoobservetheeffectofalcoholicextractfromradixpuerariaeonsolublevascularcelladhesionmolecule1(svcam-1)andtnf-αinserumofratswithlargevesselinjuryofobeset2md,andapproachthe
4、mechanismofpreventinglargevesselinjuryofobeset2md.method30wistarratswerefedbyfatmilkof1ml/100g.afterthreeweeksadipositaswistarratswithhighlevelsoftc,tgandldl,andlowlevelofinsulinsensitivityindex(isi)wereselectedfrom30wistarrats.t2dmmodeloftheseratswereestablishedbyvenacaudalisinjectionofstz
5、,30mg/kg.ratsmodelwithlargevesselinjuryofobeset2mdwereconfirmedbyobservationofpathologicalchangeofaortathoracicaarcual.thesemodelratswererandomlydividedintoalcoholicextractfromradixpuerariaegroup(receivealcoholicextractfromradixpuerariae,0.9g/kg),metformingroup(receivemetformin,0.09g/kg)and
6、modelgroup(receivetap-water).8normalratswereascontrolgroup.afterfourweeks,theseratswereexecutedandcontentsofsvcam-1andtnf-αinserumweremeasured.resultssvcam-1andtnf-αinseruminmodelgroupwerehigherthanthoseincontrolgroup.svcam-1andtnf-αinseruminalcoholicextractfromradixpuerariaegroupandmetform
7、ingroupwereobviouslydecreasedinparisonwiththoseincontrolgroup(p0.05).conclusionalcoholicextractfromradixpuerariaecancontroldevelopmentofbloodvesselplicationoft2dmbydecreasingofsvcam-1andtnf-αinserumofratwithbloodvesselplicationoft2dm.【keywords】radixpuera
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