Improvement of Parkinsonian behavior with co-grafts of Schwann cells and neural stem cells in the rat

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摘要 BACKGROUND:Duetothelackofautografttransplantrejection,Schwanncells(SCs)canpromotetheproliferationofembryonicstemcellsandtheinductionofdopaminergicneurons.Mesencephalicstemcellscanbeinducedtoproducedopaminergicneurons.Thetherapeuticeffectsofco-graftsofSCsandneuralstemcells(NSCs)deservesfurtherstudyandverificationinParkinsoniananimalmodels.OBJECTIVE:ToinvestigatetheeffectsofSchwanncellsandmesencephalicNSCco-graftsinParkinsoniananimalmodelsonanimalbehaviorandhistology.DESIGN:Randomizedcontrolledexperiment.SETTING:FudanUniversity;InstituteofNeuroscience,ChineseAcademyofSciences.MATERIALS:ThefollowinganimalswereobtainedfromtheExperimentalAnimalCenter,ShanghaiInstituteforBiologicalScience,ChineseAcademyofSciences:5Sprague-Dawleyrats,embryonicday(E)13-16;16neonatalSprague-Dawleyrats,postnatalday1-3;and18adultSDratsofbothgenders.Animalexperimentationmetanimalethicalapproval.METHODS:TheexperimentwasperformedattheDepartmentofAnatomy,HistologyandEmbryology,ShanghaiMedicalCenter,FudanUniversityfromSeptember2005toJanuary2007.ThemesencephalicNSCswereobtainedfromthebrainsofSDratsatE13-16,andSCswereharvestedfromthesciaticnervesofneonatalratsatday1-3.Hemiparkinsonianrats(n=18)wereselectedfortransplantationafterestimatingrotationalbehaviorinresponsetoapomorphineandwererandomlyassignedtothreegroups:controlgroup,NSCgroup,andco-graftgroup.Therewere6ratsineachgroup.Eitherphosphatebufferedsaline(PBS),NSCs,orSCsplusNSCsweretransplantedintotherightneostriatumofParkinsonianrats,respectively.MAINOUTCOMEMEASURES:①Rotationalbehaviorwasinducedbyapomorphine(0.05mg/kg,i.p.)2,4,6,8,and10weeksaftertransplantation,andthenumberofrotationswerecounted.②Differentiationandsurvivalofdopaminergicneuronsintherightneostriatumwerequantifiedbytyrosinehydroxylaseimmu
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出版日期 2008年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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