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时间:2019-05-21
《远志总皂苷对ad模型大鼠学习记忆及海马nachrα7亚基的影响》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中国神经免疫学和神经病学杂志2012年9月第l9卷第5期—hinJNeu!i!!!:!!:·349·远志总皂苷对AD模型大鼠学习记忆及海马nAChR7亚基的影响赵大鹏李晓峰陈树沙景玮邢婕穆俊霞李新毅摘要:目的观察远志总皂苷(TEN)对阿尔茨海默病(AD)模型大鼠学习记忆及烟碱型乙酰胆碱受体a7(nAChRa7)亚基的影响,探讨TEN对AD干预作用的机制。方法将雄性Wistar大鼠随机分为对照组、模型组、TEN低剂量组(12.5rag/mL)和TEN高剂量组(37.5mg/mL),每组8只。模型组予腹腔注射【)I半乳糖(D-gaD致衰联合IBO损毁双侧基底前脑Meynert核建立AD模型。
2、TEN低、高剂量组在建立AD模型的同时分别予12.5mg/mL、37.5mg/mL的TEN灌胃8周。对照组用等体积的生理盐水代替【)I半乳糖(D-gaD和IB0注射。采用Morris水迷宫实验检测各组大鼠的逃避潜伏期(EL)、跨越原平台次数和原平台象限停留时间;用免疫组化法测各组大鼠海马区nAChRa7表达水平。结果与对照组比较,模型组EL延长、跨越原平台次数减少、原平台象限停留时间降低、海马区nAChRa7的表达水平减小(P3、量组比较,TEN高剂量组EL时间缩短(但实验第2天两组间比较无统计学差异)、跨越原平台次数增加、原平台象限停留时间延长、海马区nAChRu7表达水平均明显升高(P4、linereceptorsubunitalpha-7inhippo。campusinAlzheimerdiseaseratsZHAODa—peng,LIXiao—feng,CHENShu—sha,JINGWei,XINGJie,MUJun—xia.LIXin—yi.DepartmentofNeurology,ShanxiAcademyofMedicalSciences(ShanxiDayiHospita1),TaiyuanShanxi030032,ChinaCorrespondingauthor:LIXin-yi,Email:xinyili2003@yahoo.corn.cnABSTRA5、CT:ObjectiveToobservetheeffectsofTenuigenin(TEN)onlearning,memoryandexpressionofnicotinicacetylcholinereceptorsubunitalpha一7inhippocampusinratswithAlzheimerdisease(AD),whichwasinducedbyD-galactose(D-gaDandibotenicacid(IBO),soastoinvestigatethemechanismunderlyingtheeffectofTENonlearningandmemory.M6、ethods32maleWistarratswererandomlydividedintothecontrolgroup,theuntreatedADgroup,thelow—doseTENtreatmentADgroup(12.5mg/mL)andthehigh-doseTENtreatmentgroup(37.5mg/mI).ADmodelwasmadebyorientallyinjectingIBOintomeynertbasalnucleiofagingratsinducedbyinjectingD-galintoabdominalcavitycontinuously.Theso7、lutionof12.5mg/mgand37.5mg/mLTENwererespectivelygiventotheratsinthehigh—doseandlow-doseTENtreatmentgroupsfor8weeks.Atthesametime。theratswerehandledbyestablishingtheADmodelsinthehigh—doseandlow—doseTENtreatmentgroups.Th
3、量组比较,TEN高剂量组EL时间缩短(但实验第2天两组间比较无统计学差异)、跨越原平台次数增加、原平台象限停留时间延长、海马区nAChRu7表达水平均明显升高(P4、linereceptorsubunitalpha-7inhippo。campusinAlzheimerdiseaseratsZHAODa—peng,LIXiao—feng,CHENShu—sha,JINGWei,XINGJie,MUJun—xia.LIXin—yi.DepartmentofNeurology,ShanxiAcademyofMedicalSciences(ShanxiDayiHospita1),TaiyuanShanxi030032,ChinaCorrespondingauthor:LIXin-yi,Email:xinyili2003@yahoo.corn.cnABSTRA5、CT:ObjectiveToobservetheeffectsofTenuigenin(TEN)onlearning,memoryandexpressionofnicotinicacetylcholinereceptorsubunitalpha一7inhippocampusinratswithAlzheimerdisease(AD),whichwasinducedbyD-galactose(D-gaDandibotenicacid(IBO),soastoinvestigatethemechanismunderlyingtheeffectofTENonlearningandmemory.M6、ethods32maleWistarratswererandomlydividedintothecontrolgroup,theuntreatedADgroup,thelow—doseTENtreatmentADgroup(12.5mg/mL)andthehigh-doseTENtreatmentgroup(37.5mg/mI).ADmodelwasmadebyorientallyinjectingIBOintomeynertbasalnucleiofagingratsinducedbyinjectingD-galintoabdominalcavitycontinuously.Theso7、lutionof12.5mg/mgand37.5mg/mLTENwererespectivelygiventotheratsinthehigh—doseandlow-doseTENtreatmentgroupsfor8weeks.Atthesametime。theratswerehandledbyestablishingtheADmodelsinthehigh—doseandlow—doseTENtreatmentgroups.Th
4、linereceptorsubunitalpha-7inhippo。campusinAlzheimerdiseaseratsZHAODa—peng,LIXiao—feng,CHENShu—sha,JINGWei,XINGJie,MUJun—xia.LIXin—yi.DepartmentofNeurology,ShanxiAcademyofMedicalSciences(ShanxiDayiHospita1),TaiyuanShanxi030032,ChinaCorrespondingauthor:LIXin-yi,Email:xinyili2003@yahoo.corn.cnABSTRA
5、CT:ObjectiveToobservetheeffectsofTenuigenin(TEN)onlearning,memoryandexpressionofnicotinicacetylcholinereceptorsubunitalpha一7inhippocampusinratswithAlzheimerdisease(AD),whichwasinducedbyD-galactose(D-gaDandibotenicacid(IBO),soastoinvestigatethemechanismunderlyingtheeffectofTENonlearningandmemory.M
6、ethods32maleWistarratswererandomlydividedintothecontrolgroup,theuntreatedADgroup,thelow—doseTENtreatmentADgroup(12.5mg/mL)andthehigh-doseTENtreatmentgroup(37.5mg/mI).ADmodelwasmadebyorientallyinjectingIBOintomeynertbasalnucleiofagingratsinducedbyinjectingD-galintoabdominalcavitycontinuously.Theso
7、lutionof12.5mg/mgand37.5mg/mLTENwererespectivelygiventotheratsinthehigh—doseandlow-doseTENtreatmentgroupsfor8weeks.Atthesametime。theratswerehandledbyestablishingtheADmodelsinthehigh—doseandlow—doseTENtreatmentgroups.Th
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