简介：Curativetherapyforspinalcordinjury(SCI)remainselusive,howeveridentifyingoptionsfortailoredtreatmentstrategiesisinfullswing.Likeinthebraintherearedistinctregionsintheadultspinalcordthatharborneuralprogenitorcells(NPCs)(Horneretal.,2000).Thisoffersthepossibilityofrecruitingthesecellsinreparativeapproachestosupportendogenousspinalcordregenerativecapacities.Hereby,one

简介：Age-relatedmaculardegeneration(AMD)causesirreversiblelossofcentralvisionforwhichthereisnoeffectivetreatment.IncipientpathologyisthoughttooccurintheretinaformanyyearsbeforeAMDmanifestsfrommidlifeonwardstoaffectalargeproportionoftheelderly.Althoughgeneticaswellasnon-genetic/environmentalrisksarerecognized,itscomplexaetiologymakesitdifficulttoidentifysusceptibility,orindeedwhattypeofAMDdevelopsorhowquicklyitprogressesindifferentindividuals.HerewesummarizetheliteraturedescribinghowtheAlzheimer's-linkedamyloidbeta(Aβ)groupofmisfoldingproteinsaccumulateintheretina.ThediscoveryofthiskeydriverofAlzheimer'sdiseaseinthesenescentretinawasunexpectedandsurprising,enablinganaltogetherdifferentperspectiveofAMD.WearguethatAβfundamentallydiffersfromothersubstanceswhichaccumulateintheageingretina,anddiscussourlatestfindingsfromamousemodelinwhichphysiologicalamountsofAβweresubretinally-injectedtorecapitulatesalientfeaturesofearlyAMDwithinashortperiod.OurdiscoveriesaswellasthoseofotherssuggestthepatternofAβaccumulationandpathologyindonoraged/AMDtissuesarecloselyreproducedinmice,includinglate-stageAMDphenotypes,whichmakesthemhighlyattractivetostudydynamicaspectsofAβ-mediatedretinopathy.Furthermore,wediscussourfindingsrevealinghowAβbehavesatsingle-cellresolution,andconsiderthelong-termimplicationsforneuroretinalfunction.WeproposeAβasakeyelementinswitchingtoadiseasedretinalphenotype,whichisnowbeingusedasabiomarkerforlatestageAMD.

简介：Directexposuretointensivevisiblelightcanleadtosolarretinopathy,includingmacularinjury.Thesignsandsymptomsincludecentralscotoma,metamorphopsia,anddecreasedvision.However,therehavebeenfewstudiesexaminingretinalinjuryduetointensivelightstimulationatthecellularlevel.Neuralnetworkarrangementsandgeneexpressionpatternsinzebrafishphotoreceptorsaresimilartothoseobservedinhumans,andphotoreceptorinjuryinzebrafishcaninducestemcell-basedcellularregeneration.Therefore,thezebrafishretinaisconsideredausefulmodelforstudyingphotoreceptorinjuryinhumans.Inthecurrentstudy,thecentralretinalphotoreceptorsofzebrafishwereselectivelyablatedbystimulationwithhigh-intensitylight.Retinalinjury,cellproliferationandregenerationofconesandrodswereassessedat1,3and7dayspostlesionwithimmunohistochemistryandinsituhybridization.Additionally,alight/darkboxtestwasusedtoassesszebrafishbehavior.Theresultsrevealedthatphotoreceptorswereregeneratedby7daysafterthelight-inducedinjury.However,theregeneratedcellsshowedadisruptedarrangementatthelesionsite.Duringtheinjury-regenerationprocess,thezebrafishexhibitedreducedlocomotorcapacity,weakenedphototaxisandincreasedmovementangularvelocity.Thesebehaviorsmatchedthemorphologicalchangesofretinalinjuryandregenerationinanumberofways.Thisstudydemonstratesthatthezebrafishretinahasarobustcapacityforregeneration.Visualimpairmentandstressresponsesfollowinghigh-intensitylightstimulationappeartocontributetothealterationofbehaviors.

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简介：BACKGROUND:ItisknownthatacupuncturetherapycandecreaseplasmaneuropeptideY(NPY)levelsinpatientswithcerebralinfarction,butdifferenttypesofacupuncturetherapyusedinvariousstagesofcerebralinfarctionhavenotbeenevaluated.OBJECTIVE:Toexploretheeffectofacupuncturetherapyonresuscitation(XingnaoKaiqiao)andplasmaNPYlevelsinpatientswithveryearlystageacutecerebralinfarction.DESIGN,TIMEANDSETTING:Thiscase-controlledstudywasperformedattheAffiliatedHospitaloftheMedicalCollegeoftheChinesePeople'sArmedPoliceForcebetweenSeptember2004andOctober2005.PARTICIPANTS:Sixtypatientswithacutecerebralinfarctionof≤6hourswereusedinthisstudy.Patientswererandomlydividedintoanacupuncturetherapygroup(n=30)andaroutinetreatmentgroup(n=30).Another30healthysubjectswereusedasthecontrolgroup.METHODS:TheacupuncturetherapyofXingnaoKaiqiaousedintheacupuncturetherapygroupwasbasedonroutinewesternmedicaltreatmentandwasperformedatbilateralNeiguan(PC6)usingthetwirling,reinforcing-reducingmethod,Renzhong(DU26)usingheavybird-peckingneedling,Sanyinjiao(SP6)usingreinforcingandreducingbyliftingandthrustingtheneedle,Jiquan(HT1),Weizhong(BL40)andChize(LU5)usingreinforcingandreducingbyliftingandthrustingtheneedle.Theacupuncturelastedfor14days.Patientsintheroutinetreatmentgroupunderwentroutinemedicaltreatmentandnointerventionwasgiventosubjectsinthecontrolgroup.MAINOUTCOMEMEASURES:A4mLvenousbloodsamplewasobtainedatdifferenttimepoints,i.e.,immediatelyafterhospitalization,thenextmorning,7and14daysaftertreatment,tomeasureplasmaNPYlevelspre-andpost-treatmentusingtheradio-immunitymethod.RESULTS:TheplasmaNPYlevelsweresignificantlyhigherinboththeroutinetreatmentgroupandtheacupuncturetherapygroupthaninthecontrolgrouppre-andpost-treatment(P<0.01).Inparticular,theplasmaNPYlevelsinboththeacupuncturetherapygroupa

简介：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

简介：BACKGROUND:Conventionalmethods(suchasocclusiontherapy,finemanipulation,complementary,andalternativemedicine)takeeffectsslowly,aretimeandlaborconsuming,andhaveuncertaincurativeeffectsinthetreatmentofamblyopia.Perceptuallearning,anewmethodfortreatingamblyopia,improvestheabilitytoprocesssignalsfromthecerebralopticnervesystembyspecificvisualstimulationandvisuallearning,aswellasactivationofthevisualsignalpathwayutilizingbrainnervoussystemplasticity.OBJECTIVE:Thisstudyinvestigatedandevaluatedthecurativeeffectsofperceptuallearning,whichcandirectionallyincreasebrainplasticity,onthetreatmentofamblyopiainchildren.Therelationshipbetweencurativeeffectandtimewasalsoanalyzed.DESIGN:Aself-controlexperiment.SETTING:VisualScienceandOptometryCenter,People'sHospitalofGuangxiZhuangAutonomousRegion.PARTICIPANTS:Atotalof125amblyopicchildren(250amblyopiceyes),73males,52females,averaging(6±2)yearsofage,receivedtreatmentattheVisualScienceandOptometryCenter,People'sHospitalofGuangxiZhuangAutonomousRegionbetweenSeptember2006andFebruary2007andwererecruitedforthisstudy.Allchildrenpresentedwithnostructuraldiseaseoftheeyeballs.Writteninformedconsentfortherapeuticregimentswasobtainedfromeachchild'sparent.TheprotocolreceivedapprovalfromtheHospital'sEthicsCommittee.METHODS:Visualfunctionwastestedwithaperceptuallearningsystem(ResearchCenterforHumanHealthandDevelopmentofSunYat-senUniversity,NationalEngineeringTechniqueResearchCenterforMedicalCareImplement)forvisualnoise,positionnoise,contourdiscrimination,contrastsensitivity,gratingstereogram,andrandom-dotfusion.Thesetestshelpedtoevaluatetheefficiencyofvisualinformationprocessingofthesechildren,andtodeterminethedegreeofdefectsoftheopticnervecellsandtheconnectionsofvisualcorticalneurons.Accordingtoresultsofvisualfunct

简介：BACKGROUND:Traditionalsubhibernationtherapymayeasilycausecomplications,suchasrespiratorydepressionandhyportensionbecauseofapplicationofchlorpromazinehydrochlorideandpromethazineinalargedosage.OBJECTIVE:Toobservetherapeuticeffectofmodifiedsubhibernationtherapy(alterativeapplicationoffiveanticonvulsantsaccordingtothehalflife)onstatusepilepticusinchildrenwithsevereviralencephalitis(VE).DESIGN:Contrastobservation.SETTING:DepartmentofPediatrics,theFirstHospitalofJilinUniversity.PARTICIPANTS:Theparticipantsinpresentstudywere96patientswithsevereviralencephalitisincluding52boysand44girlswhoreceivedtreatmentintheDepartmentofPediatrics,theFirstHospitalofJilinUniversityfromFebruary2000toMarch2006.AllchildrenmetthediagnosticcriteriaofZhufutongPracticePediatrics(theseventhedition).Twoweeksago,theyevergotupperrespiratoryinfectionorenteronitisandsoonbeforetheonset,spiritabnormal,behaviordisorder,limbsactdisorder,vomit,headache,convulsion,nervoussystemmasculinesignssuchaslimbsactdisord,autonomicnervedamagemanifestation,brainnervepalsy,dysreflexia,meningealirritationsign,cerebrospinalfluidandelectroencephalography(EEG)abnormity.Allparentsprovidedtheconfirmedconsent.Thepatientswererandomlydividedintocontrolgroup(n=40)andexperimentalgroup(n=56).METHODS:Patientsinthecontrolgroupreceivedanticonvulsion,icecompressandroutinetreatment.Theconvulsionwastreatedwithfivedrugs:0.5mg/kgwinterminandphenergan,respectively,100g/Lchlorpromazinehydrochloride(0.5mL/kg),5mg/kgluminal,0.3mg/kgansiolin.Whenconvulsionattacked,thosefivedrugsweregivenalternatively;however,thosewerenotgiveniftheconvulsiondidnotattack.Childrenintheexperimentalgroupweretreatedwithimprovedsubhibernationtherapybasedonroutinetreatment.Thedosagesofanticonvulsantswereasthesameasthoseinthecontrolgroup.Bas

简介：BACKGROUND:Theuseofacupuncturehasreceivedrecognitiontoeffectivelytreatcerebralpalsy.Moreover,musictherapycanbeusedtomodifytreatmentofcerebralpalsy.OBJECTIVE:Tostudytheeffectsofcombinedtreatmentusingacupunctureandmusictherapyongrossmotorfunctionmeasure(GMFM)ofchildrenwithcerebralpalsy,comparedwithacupuncturetreatmentalone.DESIGN,TIMEANDSETTING:Randomized,controlled,clinicalstudy.TheexperimentwasconductedinShenzhenHospitalofTraditionalChineseMedicinebetweenJanuary2007andSeptember2007.PARTICIPANTS:AllchildrenwithcerebralpalsyinthetrialwerefromtheoutpatientdepartmentofShenzhenHospitalofTraditionalChineseMedicine.Thechildrenwererandomlydividedintotwogroups:30childreninGroupBreceivedacupunctureandmusictherapy,while30childreninGroupAreceivedonlyacupuncturetherapy.METHODS:SubjectsinGroupsAandBreceivedacupuncturebasedonsyndromedifferentiation.Themainacupointswerenecessaryforallparticipants.Atfirst,flashneedlingwasappliedtotheacupoints.Fortheremainingacupoints,thetechniqueoftransverseneedlingwasappliedtotheheadacupoints,andperpendicularneedlingwasusedfortheotherpoints.Theinsertedneedlesweretwirledandthenmaintainedfor30minutes.Theneedlewastwirledforonesecondeveryother10minutes,withoutreinforcing-reducingtechniques.Thetherapywasperformedeveryotherday.Thetrialconsistedofthreeperiodseach,andlastedfor84days.SubjectsinGroupBreceivedmusictherapy.Theylistenedtomusicthattheypreferredwhileacupuncturewasbeingperformed.Followingacupuncture,theywereallowedtoperformmusicalactivities,suchaspercussion,singing,anddancing.Themusictherapywasscheduledforonehour,includinglisteningtomusicfor30minutesandmusicactivitiesfor30minutes.MAINOUTCOMEMEASURES:ThecomprehensivefunctionalevaluationscaleofcerebralpalsyandtheGMFMwereappliedtotestsymptomsbeforeand

简介：BACKGROUND:Culturesfrommultipleportionsofumbilicalcordbloodmesenchymalstemcellshavebeenshowntoundergomorerapidproliferationandattachmentthansingleportions.OBJECTIVE:Toobservegrowthofbasicfibroblastgrowthfactor(bFGF)-inducedculturesofhumanamnion-derivedmesenchymalstemcells(AMSCs)anddifferentiationintoneuronal-likecells.DESIGN,TIMEANDSETTING:Comparativeobservation.ThestudywasperformedattheLaboratoryofMicrobiologyandImmunology,BasicMedicalSchoolofZhengzhouUniversityfromJanuarytoMay2008.METHODS:Amniafromfull-term,uterine-incisiondeliveryweredonatedby12healthywomen.AMSCswereobtainedbycellseparationandculturetechniques,andwerepassagedandinducedbybFGF.Fromthethirdpassage,atotalof1mLAMSCs,atadensityof1.0×10~4/mL,wasseparatelyharvestedfromsixsamples,whichservedasgroupA.Atotalof1mLAMSCs,atadensityof1.0×10~4/mL,washarvestedseparatelyfromtheremainingsixsamples,whichservedasgroupB.Atotalof0.5mLfromthesixsamplesofgroupAand0.5mLfromthesixsamplesofgroupBwerecombinedtoformgroupC.MAINOUTCOMEMEASURES:Differencesincellquantityamongthethreegroupswerecomparedbycellquantificationand3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide(MTT)analysis.Expressionofaglialcellmarker,neuron-specificenolase,andnestinwasdetectedinthethreegroupsbyimmunocytochemistry.RESULTS:CellquantificationandMTTanalysisoflivecells,aswellasAMSCabsorbance,weresignificantlygreateringroupCcomparedwithgroupsAandBat18daysofculture(P<0.05),andnosignificantdifferencewasobservedbetweengroupsAandB.Glialfibrillaryacidicprotein,neuron-specificenolase,andnestinwereexpressedinallgroupsfollowingbFGFinduction.CONCLUSION:MixedAMSCculturespromotedproliferation,andbFGF-inducedAMSCsdifferentiatedintoneuronal-likecells.