简介：Objective:Toexploretheeffectofdexamethasonebylocaltreatmentofcerebraledemaandbraindamageafterbraininjury.Methods:Twenty-tworabbitswereclassifiedinto2groups,GroupA(thecontrolgroup,n=11)andGroupB(thetreatedgroup,n=11).Anrabbitbraincontusionmodelwasmadebybonewindowplastybyextraduralhitting.Groupbwastreatedbylocalinfiltratingandsprayingofdexamethasoneatequidistancetolesions.GroupAwasgivennormalsalineinthesamewayasGroupB.Thechangesofmoistureinbraintissuesandserummyelinbasicprotein(MBP)wereobserved.Results:ThepercentageofwatercontentindamagedhemisphereinGroupAandGroupbwas81.7%±0.56%and79.45%±0.52%respectively.Therewasasignificantdifferencebetweenthe2groups(P<0.05).ThenormallevelofMBPwas1.66μg/L±0.71μg/L,whilethevalueofMBPinGroupAandGroupbwere5.98μg/L±2.08μg/Land3.15μg/L±1.09μg/Lseparately.ThelevelofMBPinGroupAandGroupBwerehigherthannormallevelandtherewasalsoasignificantdifferencebetweenGroupAandGroupB(P<0.05).Conclusions:TheresultsofourstudyshowedthatthebrainmoistureandMBPinserumwereincreasedafterbraininjurywhilereducedaftertreatmentwithdexamethasone.ItisdemonstratedthatlocaltreatmentofbraininjurywithdexamethasonehasanobvioustherapeuticeffectoncerebraledemaandserumMBP.

简介：AbstractBackground:Our previous studies showed that topical application of mesenchymal stem cells (MSCs) improved functional recovery in rat traumatic brain injury (TBI) model, and hypoxic precondition further enhanced the therapeutic effects of MSCs. There was no previous study on the attenuation of cerebral edema by MSCs. We investigated whether topical application of normoxic and hypoxic MSCs could reduce cerebral edema in an experimental TBI model.Methods:Two million normoxic (N = 24) and hypoxic (N = 24) MSCs were applied topically to exposed the cerebral cortex in a controlled cortical impact (CCI) model. The MSCs were fixed in position with fibrin glue. No treatment was given to control animals (TBI only: n = 24). After surgery, four animals in each group were sacrificed daily (day 1 to day 6) for edema evaluation. Normal animals without TBI were used as reference (n = 4). The expressions of GFAP, AQP4, and MMP9 were also investigated by immunofluorescence staining and RT-PCR at day 3.Results:The edema peaked within 3 days after TBI. Compared with the control, hypoxic MSCs reduced brain water content significantly (p < 0.05). Both hypoxic and normoxic MSCs downregulated the expression of MMP9 and normalized AQP4 distribution to astrocyte end feet.Conclusion:Our preliminary study showed that topical application of hypoxic MSCs suppressed both vasogenic and cytotoxic edema formation.

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简介：Cerebralischemianotonlycausespathologicalchangesintheischemicareasbutalsoinducesaseriesofsecondarychangesinmoredistalbrainregions(suchasthecontralateralcerebralhemisphere).Theimpactofsupratentoriallesions,whicharethemostcommontypeoflesion,onthecontralateralcerebellumhasbeenstudiedinpatientsbypositronemissiontomography,singlephotonemissioncomputedtomography,magneticresonanceimaginganddiffusiontensorimaging.Inthepresentstudy,weinvestigatedmetabolitechangesinthecontralateralcerebralhemisphereaftersupratentorialunilateralischemiausingnuclearmagneticresonancespectroscopy-basedmetabonomics.Thepermanentmiddlecerebralarteryocclusionmodelofischemicstrokewasestablishedinrats.Ratswererandomlydividedintothemiddlecerebralarteryocclusion1-,3-,9-and24-hourgroupsandtheshamgroup.~1Hnuclearmagneticresonancespectroscopywasusedtodetectmetabolitesintheleftandrightcerebralhemispheres.Comparedwiththeshamgroup,theconcentrationsoflactate,alanine,γ-aminobutyricacid,cholineandglycineintheischemiccerebralhemispherewereincreasedintheacutestage,whiletheconcentrationsofN-acetylaspartate,creatinine,glutamateandaspartateweredecreased.Thisdemonstratesthatthereisanupregulationofanaerobicglycolysis(shownbytheincreaseinlactate),aperturbationofcholinemetabolism(suggestedbytheincreaseincholine),neuronalcelldamage(shownbythedecreaseinN-acetylaspartate)andneurotransmitterimbalance(evidencedbytheincreaseinγ-aminobutyricacidandglycineandbythedecreaseinglutamateandaspartate)intheacutestageofcerebralischemia.Inthecontralateralhemisphere,theconcentrationsoflactate,alanine,glycine,cholineandaspartatewereincreased,whiletheconcentrationsofγ-aminobutyricacid,glutamateandcreatinineweredecreased.Thissuggeststhatthereisadifferenceinthemetabolitechangesinducedbyischemicinjuryinthecontral

简介：目的：探讨局灶性脑缺血再灌注大鼠病理学改变以及针刺的干预作用。方法：采用线栓法建立缺血再灌注模型，应用“醒脑开窍”针法并通过电镜与光镜来观察缺血侧大脑皮层形态结构的变化。结果：脑缺血再灌注可引发大鼠脑神经元、胶质细胞、毛细血管等结构损伤，针剌可改善脑缺血周围区超微结构损伤。并且发现在3h时间点给予针刺干预较其他时间点理想。结论：针刺对局灶性脑缺血再灌注大鼠脑神经细胞超微结构损伤具有保护作用。在3h内给予针刺干预可以收到满意的效果。

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简介：ThirtyWistarratswererandomlyandevenlydividedintocontrolgroup,cerebralischemiagroupandischemia+electroacupuncture(EA)group.Thebilateralcommoncarotidarterieswereoccludedtoinduceacutecerebralischemia.Nitricoxide(NO)andendothelin(ET)contentsinthecerebraltissuesandbloodweremeasuredundernormalcondition,immediatelyafterischemiaandfollowingEA.ResultsshowedthatafteracutecerebralischemiaNOandETcontentsinthecerebraltissuesincreasedsignificantly(P<0.01)whileserumETincreasedandserumNOloweredobviously(P<0.05).FollowingEAofBaihui(GV20)andDazhui(GV14),bothNOandETincerebraltissuesandserumturnedtonormalbasically.ItshowedthatEAcouldprotectthecerebraltissuesfrominjuryinducedbyischemia,NOandETmightparticipateinthemodulationprocessofEA.

简介：Objective:Toinvestigatetheunderlyingneurobiologicalmechanismoftheprotectiveeffectofelectroacupuncture(EA)duringcerebralischemia-reperfusion(CI-R).Methods:Inthefirstpartofthestudy,15SDratswereevenlyrandomizedintocontrolgroup,CI-R-48hmodelgroupandCI-R-48h+EAgroup.ThecorticalapoptosisandexpressionofBcl-2andBaxproteinsineachgroupweredetectedbyflowcytometer(FCM).Inthesecondpartofthestudy,75SDratswereevenlyrandomizedintocontrol,CI-R-3min,CI-R-3min+EA,CI-R-48handCI-R-48h+EAgroups.Corticalnorepinephrine(NE)concentrationwasdetectedbyfluorescencespectrometer.CI-Rmodelwasestablishedbyocclusionofthebilateralcommoncarotidarteriesandreperfusion.EA(4～16Hz,1～3V)wasappliedafterreperfusionrespectively.Results:Inthefirstpartofthisstudy,resultsindicatedthatthenumberoftheapoptoticneuronsandtheapoptosisrateofCI-R-48hgroupweresignificantlyhigherthanthoseofcontrolgroup;whilecomparisonbetweenCI-R-48h+EAandCI-R-48hgroupsshowedthatthenumberoftheapoptoticneuronsandtheapoptosisrateoftheformergroupweresignificantlylowerthanthoseofthelatergroup(P<0.05).Incomparisonwithcontrolgroup,afterCI-48h,Baxexpressionwasup-regulatedsignificantlyandBcl-2down-regulatedmarkedly(P<0.05).ComparisonbetweenCI-R-48handCI-R-48h+EAgroupindicatedthatBaxexpressionofthelatergroupwassignificantlylowerthanthatoftheformergroup,whileBcl-2expressionofCI-R-48h+EAgroupwassignificantlyhigherthanthatofCI-R-48hgroup(P<0.05),suggestingthatEAcouldreverseCIinducedreactionsofthesetwoindexes.Inthesecondpartofthestudy,incomparisonwithcontrolgroup,NEconcentrationincerebralcortexofCI-R-3mingroupincreasedsignificantly(P<0.05);whileNEcontentofCI-R-3min+EAgroupwassignificantlylowerthanthatofCI-R-3mingroup(P<0.05).NosignificantdifferencewasfoundbetweenCI-R-3mingroupandcontrolgroupincorticalNEl

简介：评估由于长期的心脏的失败为浮肿与中国植物粘住的acupoint的治疗学的效果。

简介：AIM:Tocomparetherapeuticeffectsofintravitrealtriamcinoloneacetonide(IVTA)versusintravitrealbevacizumab(IVB)injectionsforbilateraldiffusediabeticmacularedema(DDME).METHODS:Fortyeyesof20patientswithbilateralDDMEparticipatedinthisstudy.Foreachpatient,4mg/0.1mLIVTAwasinjectedtooneeyeand2.5mg/0.1mLIVBwasinjectedtotheothereye.Theeffectsofinjectionfordiabeticmacularedema(DME)wereevaluatedusingbest-correctedvisualacuity(BCVA),centralmacularthickness(CMT)byopticalcoherencetomography(OCT)andintraocularpressure(IOP)byapplanationtonometer.Patientsunderwenteyeexaminations,includingBCVA,CMT,andIOPatpre-injection,1,4,8,12and24wkafterinjection.Duringthefollow-up,secondinjectionswereperformedtoeyeswhichhaveCMTgreaterthan400μmat12wkforsalvagetherapy.RESULTS:BCVA(logarithmoftheminimumangleofresolution)atpre-injection,1,4,8,12and24wkafterinjectionwas0.71±0.19,0.62±0.23,0.63±0.12,0.63±0.13,0.63±0.14and0.61±0.24intheIVTAgroupand0.68±0.25,0.61±0.22,0.60±0.24,0.62±0.25,0.65±0.26and0.59±0.25intheIVBgroup,respectively.CMT(μm)atpre-injection,1,4,8,12and24wkafterinjectionwas544±125,383±96,335±87,323±87,333±92,335±61intheIVTAgroupand514±100,431±86,428±107,442±106,478±112,430±88intheIVBgrouprespectively.ReductionratiosofmeanCMTwere29%at1wk,38%at4wk,40%at8wk,38%at12wk,and38%at24wkintheIVTAgroup.SecondIVTAinjectionswereperformedtothe6eyes(30%)at12wk.ReductionratiosofmeanCMTwere16%at1wk,17%at4wk,14%at8wk,7%at12wk,and16%at24wkintheIVBgroup.SecondIVBinjectionswereperformedtothe15eyes(75%)at12wk.CONCLUSION:Thisstudyshowedearlierandmorefrequentmacularedemarecurrencesintheeyestreatedwithbevacizumabcomparedwiththeonestreatedwithtriamcinoloneacetonide.Triamcinoloneacetonidewasfoundtoprovidemoreefficientandlo

简介：Diabeticmacularedema(DME)isaretinalthickeninginvolvingthecenterofthemacula.Itisoneoftheseriouseyediseaseswhichaffectsthecentralvisionandcanleadtopartialorevencompletevisualloss.Theonlycureistimelydiagnosis,prevention,andtreatmentofthedisease.ThispaperpresentsanautomatedsystemforthediagnosisandclassificationofDMEusingcolorfundusimage.Intheproposedtechnique,firsttheopticdiscisremovedbyapplyingsomepreprocessingsteps.Thepreprocessedimageisthenpassedthroughaclassifierforsegmentationoftheimagetodetectexudates.Theclassifierusesdynamicthresholdingtechniquebyusingsomeinputparametersoftheimage.Thestageclassificationisdoneonthebasisofanearlytreatmentdiabeticretinopathystudy(ETDRS)givencriteriatoassesstheseverityofdisease.Theproposedtechniquegivesasensitivity,specificity,andaccuracyof98.27%,96.58%,and96.54%,respectivelyonpublicallyavailabledatabase.

简介：Objective:Toobservetheeffectofacupunctureonimagesinautismchildren.Methods:Atotalof27casesofautismchildrenweresubjectedintothisstudy.ByusingaSPECT,thecerebralimageswerecollectedbeforeandafteracupuncturetreatmentandanalyzedaccordingtotherecommendedmethodsinforassessingthestateofbloodflow,radioactivityquantitydistributionandradioactivitycountinbilateralhemispheres.'JIN'sthree-needling'wasemployed.Theacupuncturetreatmentwasgivenonceeveryotherday,with4monthsbeingatherapeuticcourseandanintervalofonemonthbetweentwocourses.Results:Afteracupuncturetreatment,ofthe22cases,20hadremarkableimprovementand2hadimprovementincerebralbloodflow,withthetotaleffectiverateofimprovingcerebralbloodflowbeing90.8%.Beforethetreatmentthereweresignificantdifferencesbetweentheleftandrightcerebrum(P<0.001),andbetweentheleftandrightfrontallobesinradioactiveareas(P<0.01);however,aftertreatment,nodifferenceswerefoundbetweenthem(P>0.05).Aftertreatment,theradioactivitycountinthewholebraindecreasedsignificantlyincomparisonwiththatofpretreatment(P<0.01).Itindicatestheimprovementofcerebralbloodflowandcellularmetabolismafterthetreatment.Conclusion:Acupumctureconsignificantlyimprovecerebralbloodflowinautismchildren.

简介：Objectives:Toexploretheeffectofacupunctureoncerebralinfarctioninratsandtotryprovidingsomeexperimentalparametersforclinicalpractice.Methods:27healthyWistarratswererandomlydividedintopseudo-operation(n=10),model(n=8)andacupuncture(n=9)groups.Neuro-functionaldefectscoring,apoptosisofsinglebrainsliceandthenumberofbcl-2immuno-reaction(IR)-positiveneuronsinCA1areaofthehippocampuswereusedastheindexestoinvestigatethepossiblemechanismsofacupunctureof'NieSanZhen'(needlingthreeacupointsinthetemporalregion)and'SiShenZhen'(needlingfouracupointsintheocciputregion)intreatingratswithcerebralinfarction.Results:Thereexistedsignificantdifferencesbetweenacupuncturegroupandmodelgroupinimprovingneurologicfunctionalactivities,inhibitingapoptosisofthebraincellsandincreasingbcl-2IR-positiveneuronsinthehippocampalCA1area(P＜0.01).Conclusion:Acupuncturetherapycanimprovecerebralinfarctionintheratbysuppressingapoptosisandup-regulationofthebcl-2IR-positiveneuronexpression.

简介：Objective:Toimprovethediagnosisandtreatmentofseverecerebralfatembolism(SCFE).Methods:ThedataofninepatientswithSCFEwereretrospectivelyanalyzed.Themanifestationsofthecentralnervesystem,respiratorysystemandhemorrhagewererecorded,atthesametime,accessoryexaminationincludingarterialoxygen,fatmacroglobulesinvenousbloodandimageexaminationwasadapted.Thepatientsweretreatedwithexopexy,pharmocotherapyandoxygentherapy.Results:Twooftheninepatientsdiedofseverecomplications,theothersevenrecoveredwithoutseveresequela.Conclusions:GurdstandardshouldbeimprovedforearlydiagnosisofSCFE.Ifsverecomplicationscanbeprevented,patientswhoreceiveearlytreatmentwillhavefavourableprognosis.

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简介：加中国药用的忿恨评估针灸的治疗学的功效并且在在击以后的半身麻痹对待影响手足的浮肿洗。

简介：Objective:Tostudythecorrelationbetweenbrainedema,elevatedintracranialpressure(ICP)andcellapoptosisintraumaticbraininjury(TBI).Methods:Inthisstudy,totally42rabbitsin7groupswerestudied.Sixoftheanimalswereidentifiedasacontrolgroup,andtheremaining36animalswereequallydividedinto6TBIgroups.TBImodelswereproducedbythemodifiedmethodofFeeney.Aftertheimpact,ICPofeachsubjectwasrecordedcontinuouslybyanICPmonitoruntiltheanimalwassacrificedatscheduledtime.Theapoptoticbraincellsweredetectedbyanterminaldeoxynucleotide-transferase-mediateddUTP-digoxigeninnickendlabeling(TUNEL)assay.Cerebralwatercontent(CWC)wasmeasuredwithadryingmethodandcalculatedaccordingtotheElliottformula.Then,ananalysiswasconductedtodeterminethecorrelationbetweenthecountofapoptoticcellsandtheclinicalpathologicalchangesofthebrain.Results:Apoptoticcellcountbegantoincrease2haftertheimpact,andreacheditsmaximumabout3daysaftertheimpact.ThepeakvalueofCWCandICPappeared1dayand3daysaftertheimpact,respectively.ApoptoticcellcounthadapositivecorrelationwithCWCandICP.Conclusions:InTBI,occurrenceofbrainedemaandICPincreasemightleadtoapoptosisofbraincells.Anytherapywhichcanrelievebrainedemaand/ordecreaseICPwouldbeabletoreduceneuronapoptosis,therebytoattenuatethesecondarybraindamage.

简介：AIMTo用光连贯断层摄影术(10月)并且到在奔流外科以后在糖尿病的眼睛估计斑点的量的变化估计开发的发生或有斑点的浮肿变得更坏(我)在糖尿病的眼睛与或没有先存在ME.METHODSIn这未来的、观察研究，经历了奔流外科的60个糖尿病的病人的92只眼睛在外科前被评估并且1，在用10月有斑点的厚度的外科以后的3mo在九有斑点的子字段与10月被测量定义b另外，开发的发生或我变得更坏在糖尿病的眼睛被分析与或没有先存在，ME.RESULTSThe中央子字段平均数厚度增加了21.0µ；m和25.5µ；在1点的m，3mo后续，分别地(P<；0.01)。内部戒指和外部戒指的平均厚度增加了14.2µ；m和9.5µ；在1mo的m，18.2µ；m和12.9µ；在3mo的m。中央包含我在3mo在12只眼睛发展了，包括4与先存在与先存在看中央包含和8只眼睛非中央包含了我。先存在的糖尿病的有斑点的浮肿(DME)显著地与中央包含被联系我开发(P<；0.001).CONCLUSIONA尽管增加是温和的，统计上重要的增加能在中央子字段以及perifoveal和parafoveal部门被检测。并且有在奔流外科以前的外科手术前的DME的眼睛在为开发中央包含的更高的风险我。

简介：BACKGROUND:Calciumion(Ca2+)overloadplaysanimportantroleincerebralischemia/reperfusioninjury.Anisodamine,atypeofalkaloid,canprotectthemyocardiumfromischemiaandreperfusioninjurybyinhibitingintracellularcalcium[Ca2+]ioverload.OBJECTIVE:Toinvestigateeffectsofanisodamineon[Ca2+]iconcentrationandcortexultrastructurefol-lowingacutecerebralischemia/reperfusioninrabbits.DESIGN,TIMEANDSETTING:RandomizedandcontrolledtrialwasperformedattheDepartmentofEmergency,TongjiHospital,TongjiMedicalCollegeofHuazhongUniversityofScienceandTechnologyfromSeptembertoDecember2006.MATERIALS:Fortyhealthyrabbitswereusedtoestablishmodelsofacutecerebralischemia/reperfusion.AnisodaminewasprovidedbyLianyungangDongfengPharmaceuticalFactory;Fura-2waspurchasedfromNanjingJianchengBioengineeringInstitute;dual-wavelengthfluorescentspectrophotometrysystemandDM-300softwarewereprovidedbyBio-Rad,USA;OPTON-EM10CtransmissionelectronmicroscopewasproductofSiemens,Germany.METHODS:Fortyrabbitswererandomlydividedintothefollowinggroups:shamoperation,ischemia,ischemia/reperfusion,andanisodamine,withtenrabbitsineachgroup.Modelsofcompletecerebralischemiainjurywereestablished.Inaddition,bloodwascollectedfromthefemoralarteryofratsintheischemia/reperfusionandanisodaminegroupstoinducehypotensionandestablishreperfusioninjurymodels.Thebilateralcommoncarotidarteryclampwasremovedfromtheanisodaminegroup20minutesafterischemia,andanisodamine(10mg/kgbodymass)wasinjectedviathefemoralvein.Rabbitsintheshamoperationgroupunderwentonlyvenouscannulation.MAINOUTCOMEMEASURES:[Ca2+]iconcentrationwasdeterminedusingadual-wavelengthfluorescentspectrophotometrysystem,andcorticalultrastructurewasobservedfollowinguranyl-leadcitratestaining.RESULTS:Thelevelsof[Ca2+]iintheischemiaandischemia/reperfusiongroupsweresignificantlyin-creased,c

简介：AbstractBackground:Dense exudate during the calcification of cerebral cysticercosis in basal subarachnoid space was easy to be misdiagnosed as subarachnoid hemorrhage (SAH); clinical evaluation and MRI can help differentiate SAH from pseudo-SAH.Case presentation:A case of ventricular expansion accompanied by high-density shadows in cisterna circinata cerebri was taken to the hospital for treatment due to sudden faint. This patient was diagnosed as subarachnoid hemorrhage according to computed tomography (CT) in another hospital. We believe that the high density in cisterna circinata cerebri was misdiagnosed as subarachnoid hemorrhage (SAH) 1 year ago. The main etiology of SAH is aneurysm; non-aneurysmal SAH associated with cerebral cysticercosis is extremely rare. Only 5 patients have been reported.Conclusion:This case indicated that although the specificity of CT for SAH is very high, the physicians should be aware of rare false positive findings, called pseudo-SAH.