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ID:33164540
大小:5.54 MB
页数:57页
时间:2019-02-21
《mptp慢性腹腔注射建立小鼠帕金森病模型学习记忆能力减退的研究》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、徐州医学院硕士学位论文MPTP慢性腹腔注射建立小鼠帕金森病模型学习记忆能力减退的研究姓名:刘泽民申请学位级别:硕士专业:神经病学指导教师:肖成华2012-03徐州医学院硕士学位论文MPTP慢性腹腔注射建立小鼠帕金森病模型学习记忆能力减退的研究中文摘要目的评价MPTP慢性腹腔注射建立的小鼠帕金森病模型学习记忆的能力并探讨其可能的发生机制。方法将8周龄实验小鼠(C57BL/6)24只随机分为2组:MPTP组、生理盐水组(Ns组)。用浓度5ug/ml的MPTP生理盐水溶液,对实验组小鼠进行腹腔内注射,每周2次,连续注射5周,建立帕金森病模型;采用Y-型迷宫实验评价两组小鼠的学习记忆能力;应
2、用免疫荧光技术检测中脑腹侧被盖区(VTA)酪氨酸羟化酶阳性(TH+)的多巴胺(DA)神经元个数;WesternBlot方法检测初级运动皮质(M1)qhDl、D2受体(DlR、D2R)以及酪氨酸羟化酶(TH)的表达量情况。结果1.MPTP组小鼠达到Y型迷宫学会标准所需的天数多于NS组(13.42士2.19VS10.25士2.05,P3、于NS组(O.48+0.07VSO.83士0.05,P4、ognitiveimpairmentofchronicmodelofParkinson’SdiseaseInducedbyMPTPAbstractObjectiveToevaluatelearningandmemoryabilityofmicewithchronicParkinson’Sdisease(PD)establishedbyintraperitonealinjectionof1-methyl.4.phenyl.1,2,3,6一tetrapyridine(MPTP)andtheninvestigateitsmechanism.Methods24C57BL/6micewered5、ividedintotwogroups:MPTPandnormalsodium(NS)group.MPTPgroupreceivedintraperitonealinjectionof25mg/kgMPTP,2timeperweekinconsecutivefiveweekswhilethesamevolumeofsalinewasgivenNSgroup.LearningandmemoryabilitywasevaluatedbyY-mazetest.Tyroxinhydroxylase(TH)positivedopaminergicneuronswerecountedbyimmu6、nofluoresceneintheventraltegmentumareaofmidbrainandwesternimmuoblottingtodetecttheDI、D2receptorsandtheTHproteininprimarymotorcortex(M1).Results(1)whenthechronicPDmodelwasestablished,Y-mazetestshowedthatthetimeofMPTPgrouptoreachtheleamingstandardwerelongerthanNSgroup(13.42土2.19VS10.254-2.05,P<0.7、05).(2)THpositivedopaminergicneuronswerelessintheMPTPgroupthanNSgroup(36.67+8.31VS54.03+6.61,P<0.01).(3)TheexpressionofDlandD2receptorsplusTHproteinintheprimarymotorcortex(M1)werelessinMPTPgroupthanNSgrouprespectivelybywesternimmu
3、于NS组(O.48+0.07VSO.83士0.05,P4、ognitiveimpairmentofchronicmodelofParkinson’SdiseaseInducedbyMPTPAbstractObjectiveToevaluatelearningandmemoryabilityofmicewithchronicParkinson’Sdisease(PD)establishedbyintraperitonealinjectionof1-methyl.4.phenyl.1,2,3,6一tetrapyridine(MPTP)andtheninvestigateitsmechanism.Methods24C57BL/6micewered5、ividedintotwogroups:MPTPandnormalsodium(NS)group.MPTPgroupreceivedintraperitonealinjectionof25mg/kgMPTP,2timeperweekinconsecutivefiveweekswhilethesamevolumeofsalinewasgivenNSgroup.LearningandmemoryabilitywasevaluatedbyY-mazetest.Tyroxinhydroxylase(TH)positivedopaminergicneuronswerecountedbyimmu6、nofluoresceneintheventraltegmentumareaofmidbrainandwesternimmuoblottingtodetecttheDI、D2receptorsandtheTHproteininprimarymotorcortex(M1).Results(1)whenthechronicPDmodelwasestablished,Y-mazetestshowedthatthetimeofMPTPgrouptoreachtheleamingstandardwerelongerthanNSgroup(13.42土2.19VS10.254-2.05,P<0.7、05).(2)THpositivedopaminergicneuronswerelessintheMPTPgroupthanNSgroup(36.67+8.31VS54.03+6.61,P<0.01).(3)TheexpressionofDlandD2receptorsplusTHproteinintheprimarymotorcortex(M1)werelessinMPTPgroupthanNSgrouprespectivelybywesternimmu
4、ognitiveimpairmentofchronicmodelofParkinson’SdiseaseInducedbyMPTPAbstractObjectiveToevaluatelearningandmemoryabilityofmicewithchronicParkinson’Sdisease(PD)establishedbyintraperitonealinjectionof1-methyl.4.phenyl.1,2,3,6一tetrapyridine(MPTP)andtheninvestigateitsmechanism.Methods24C57BL/6micewered
5、ividedintotwogroups:MPTPandnormalsodium(NS)group.MPTPgroupreceivedintraperitonealinjectionof25mg/kgMPTP,2timeperweekinconsecutivefiveweekswhilethesamevolumeofsalinewasgivenNSgroup.LearningandmemoryabilitywasevaluatedbyY-mazetest.Tyroxinhydroxylase(TH)positivedopaminergicneuronswerecountedbyimmu
6、nofluoresceneintheventraltegmentumareaofmidbrainandwesternimmuoblottingtodetecttheDI、D2receptorsandtheTHproteininprimarymotorcortex(M1).Results(1)whenthechronicPDmodelwasestablished,Y-mazetestshowedthatthetimeofMPTPgrouptoreachtheleamingstandardwerelongerthanNSgroup(13.42土2.19VS10.254-2.05,P<0.
7、05).(2)THpositivedopaminergicneuronswerelessintheMPTPgroupthanNSgroup(36.67+8.31VS54.03+6.61,P<0.01).(3)TheexpressionofDlandD2receptorsplusTHproteinintheprimarymotorcortex(M1)werelessinMPTPgroupthanNSgrouprespectivelybywesternimmu
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