简介:目的探讨GATA-3及Th2细胞因子IL-4与多发性肌炎(PM)/皮肌炎(DM)的关系。方法用RT-PCR方法检测PM/DM患者外周血单个核细胞(PBMC)中GATA-3、IL-4的mRAN表达,并与正常健康人进行比较。结果PM、DM组中GATA-3mRNA表达阳性率(85.7%,86.4%)均高于正常对照组(25%)(P〈0.05);PM、DM组GATA-3的表达强度(0.268,0.411)均高于正常对照组(0.000)(P〈0.05);皮肌炎IL-4mRNA的表达强度(0.251)高于正常对照组(0.000)(P〈0.05);GATA-3与IL-4的表达强度呈正相关(r=0.475,P〈0.05)。结论皮肌炎的Th2细胞过度分化及体液免疫增强可能与GATA-3表达增强有关。
简介:1-methyl-4-phenylpyridiniumion(MPP+)inducesendoplasmicreticulumstressandactivatescaspase-12inPC12cells,leadingtoneuronalapoptosis.However,theunderlyingmolecularmechanismremainsunknown.Thepresentstudyinvestigatedtheregulatoryeffectsofnervegrowthfactor(Aktactivator)andlithiumchloride(glycogensynthasekinase-3βinhibitor)ontheendoplasmicreticulumstresssignalingpathway.TheresultsrevealedthatMPP+inducedexpressionofBipandC/EBPhomologousprotein.TheupregulationofBipandC/EBPhomologousprotein,aswellasthedecreasedpro-caspase-12levelinducedbyMPP+wereinhibitedbypretreatmentofthenervegrowthfactororlithiumchloride.Theseresultssuggestthatthephosphatidylinositol3kinase-Akt-glycogensynthasekinase-3βpathwayisinvolvedinMPP+-inducedendoplasmicreticulumstress.
简介:目的构建大鼠神经营养因子3(NT-3)基因真核表达载体并观察其在真核细胞内的表达情况。方法采用逆转录聚合酶链式反应(RT-PCR)技术从大鼠脑组织总RNA中扩增NT-3基因cDNA序列,将其克隆到真核表达载体pcDNA3中,经酶切鉴定和序列分析后,以阳离子脂质体Li-pofectamine2000介导转染L929细胞,应用免疫细胞化学和westernblot鉴定NT-3在细胞内的表达。结果RT-PCR产物为822bp的特异片段,重组质粒pcDNA3/NT-3酶切后产生822bp和5.2kb的片段,DNA测序证实822bp片段的碱基序列与大鼠NT-3基因序列完全一致,成功构建了pcDNA3/NT-3重组质粒。将其转染真核细胞后,免疫细胞化学、westernblot结果表明NT-3能在真核细胞中正确表达。结论成功构建了重组真核表达质粒载体pcDNA3/NT-3,为后续的研究奠定基础。
简介:1病例报告A先生,42岁,国家公务员,已婚,个性外向。2004年下半年因为工作紧张出现失眠,并且有心烦、高兴不起来、做事没有兴趣,自我评价下降,觉得做任何事情效率下降,注意力集中不起来,并且有早醒。就医后诊断抑郁症,服用帕罗西汀20mg/d,1周左右自觉精神状态好转,心情改善显著,思维活动“比平时想得多,想得快”,自我描述为“比平时的状态要好”,唯一不满意的是“勃起不行”,求助医生后,考虑是轻躁狂的出现,建议停用帕罗西汀,改服碳酸锂,但患者要求仅改善“性问题”,为此停用帕罗西汀换用米氮平30mg/d,同时联合碳酸锂0.75/d。随后患者的性问题逐渐好转,同时原来比较兴奋的状态也逐渐消失,如此1年时间,期间基本正常,偶有失眠,能适应工作,工作效率正常。1年后擅自停用碳酸锂,仅服米氮平,约1月后出现入睡困难,但并不感到累,且感觉精力充沛,性情变得急躁,想法多,咨询医生,建立停米氮平,重服碳酸锂,1月后基本恢复正常。
简介:由大熊辉雄教授编写的《脑电图判读stepbystep》(第4版)中文翻译版已于2009年1月在科学出版社出版。其《入门篇》有14章、124节,详细地介绍了脑电图的基本要素、记录方法、伪差的辨认、诱发试验的方法及注意事项、成人及小儿觉醒时正常及异常脑电图、正常及异常睡眠脑电图、老年人的脑电图等阅读方法;《病例篇》共12章,详细介绍了癫痼、意识障碍及睡眠觉醒障碍、脑肿瘤、脑血管病、脑炎性疾病、颅脑创伤、其他慢性脑器质性疾病、内分泌和代谢障碍性疾病和服药时的脑电图阅读方法。该书内容丰富,系统性强,图文并茂,导联标注清楚,易读易懂,使读者能在较短时间内掌握脑电图的基本原理、操作技术和诊断方法,并了解脑电图领域的最新进展。其脑电图均为等比例,可供神经内科、神经外科、精神科、小儿科医师,脑电图工作人员阅读,也可作为临床其他科室医师、进修实习人员及大专院校学生的参考书。
简介:BACKGROUND:TheprogressivedegenerationofdopaminergicneuronsinParkinson’sdiseaseisassociatedwithanactivatedglialreaction,combinedwithaninflammatoryprocess.Theseresponsesleadtotheproductionofcytokines,suchasinterferon-γ,tumornecrosisfactor-α(TNF-α),andinterleukin-1β.Inaddition,14-3-3proteinisacomponentofLewybodiesinParkinson’sdisease.OBJECTIVE:Toobservetheexpressionof14-3-3γandζprotein,aswellasTNF-α,inmousemicroglia,aswellaschangesafterlipopolysaccharide(LPS)activation.Toinvestigatepossiblemechanismsofdopaminergicneuronalinjuryduetoactivatedmicroglia.ToandclarifytheimmuneresponsemechanismsofParkinson’sdisease.DESIGN:Randomizedcontrolledobservation,cellstudy.SETTING:LaboratoryofDepartmentofNeurology,theAffiliatedUnionHospitalofTongjiMedicalCollege,HuazhongUniversityofScienceandTechnology.MATERIALS:TheBV-2immortalizedmurinemicrogliacelllinewaspurchasedfromChinaUnitcellcenter.LPSwasprovidedbySigmaCompany.CellcultureswerepurchasedfromGibco.Phospho-(Ser)14-3-3bindingmotifantibodywaspurchasedfromSantaCruzBiotechnologies.FITCwasprovidedbyLinfeiBiotechnology,Wuhan,China.TNF-αELISAwasprovidedbyJingmeiBiotechCo,Wuhan,China.TheflowcytometerwasprovidedbyBectonDickinson,Canada.METHODS:ThepresentexperimentwasperformedattheLaboratoryofDepartmentofNeurology,theAffiliatedUnionHospitalofTongjiMedicalCollege,HuazhongUniversityofScienceandTechnologyfromApriltoDecember2006.Themicroglialcellline,BV-2,wasculturedinvitroandstimulatedwithLPSfor2,6,12,and24hours.BV-2cultureswithoutLPSwereusedascontrols.MAINOUTCOMEMEASURES:Expressionof14-3-3γproteinwasdetectedbyflowcytometry.14-3-3ζpercentageexpressionandthemeanfluorescenceintensitywasdetectedbyimmunofluorescence.TNF-αexpressionwasdetectedbyELISA.RESULTS:14-3-3γproteinexpressionanalysis:followi
简介:目的探讨硬脊膜外脓肿的临床症状、影像学表现及治疗方法和预后。方法回顾性分析苏州大学附属第一医院自2013年1月—2017年11月收治的4例硬脊膜外脓肿患者(男1例,女3例)的临床资料。其中2例完全瘫痪患者未行手术治疗,予以抗感染、脱水等对症治疗;另2例未完全瘫痪患者行手术治疗。结合文献复习分析该病的临床特点、治疗方法及预后。结果4例患者均表现脊柱疼痛、发热、肢体运动障碍等临床症状。2例未完全截瘫患者经手术及药物治疗后,症状均改善;2例完全截瘫患者治疗后无明显效果。结论硬脊膜外脓肿的治疗效果及预后与病程缓急、患者全身状况及脊髓受压情况、手术是否及时等有密切关系。早期诊断、早期治疗对硬脊膜外脓肿患者的治疗效果和预后极为重要。
简介:Amyotrophiclateralsclerosis(ALS)isafatalprogressivedisordercharacterizedbytheselectivedegenerationofmotorneurons(MN).TheimpactofperipheralimmunestatusondiseaseprogressionandMNsurvivalisbecomingincreasinglyrecognizedintheALSresearchfield.Inthisreview,webrieflydiscussfindingsfrommousemodelsofperipheralnerveinjuryandimmunodeficiencytounderstandhowtheimmunesystemregulatesMNsurvival.Weextendtheseobservationstosimilarstudiesinthewidelyusedsuperoxidedismutase1(SOD1)mousemodelofALS.Last,wepresentfuturehypothesestoidentifypotentialcausativefactorsthatleadtoimmunedysregulationinALS.Thelessonsfromprecedingworkinthisareaoffernewexcitingdirectionstobridgethegapinourcurrentunderstandingofimmune-mediatedneuroprotectioninALS.
简介:BACKGROUND:Increasingevidencesuggestsoverlappedgeneticsusceptibilityacrosstraditionalclassificationsystemsthatdividedpsychoticdisordersintoschizophreniaoraffectivedisorder.OBJECTIVE:ThisstudyaimedtoexplorewhetherschizophreniaandaffectivedisordersharegeneticsusceptibilityinNOTCH4andGRIK2lociinapopulationofHanChinese.DESIGN:Repetitivemeasurements.SETTING:TheexperimentwascarriedoutatShanghaiMentalHealthCenterandHongkouMentalHealthCenterofShanghaibetweenJanuary2001andJune2004.PARTICIPANTS:Sixty-fivemixedpedigrees(sufferingfromvariousdiseases,incombinationwithschizophreniaandaffectivedisorder),composedof45completedtriosand20single-parentfamilies,wereselectedfromShanghaiMentalHealthCenterandHongkouMentalHealthCenterofShanghaibetweenJanuary2001andJune2004.ProbandsreceivedclinicaldiagnosisaccordingtoICD-10;anindependentclinicianusedidenticalcriteriatoreviewalldiagnoses.AllsubjectswereHanChineseinoriginandprovidedinformedconsent.Therewere65probandsand110parentsamongthesubjects.Theprobandscomprised30malesand35females:33withschizophrenia,32withaffectivedisorder,meanageof(30.9±9.8)years,meanageofonset(24.3±8.8)years,meanduration(6.6±7.0)years,andmeanageofparents(58.8±10.9)years.METHODS:DNAsamplesfromprobandsandtheirbiologicalparentswereextractedfromperipheralbloodaccordingtostandardmethods.Fourpolymorphisms,-1725T/Gand-25T/CinNOTCH4,rs6922753T/Candrs2227283G/AinGRIK2,wereamplifiedandgenotypedwithPCR-RFLPtechniques.MAINOUTCOMEMEASURES:AssociationbetweenNOTCH4,GRIK2polymorphism,andschizophreniawasanalyzedbytransmissiondisequilibriumtest(TDT).RESULTS:Sixty-fiveprobandsand110parentswereincludedintheresultanalysis,withnodropouts.Theresultsshowedthatthe-25T/CpolymorphismofNOTCH4associatedsignificantlywithaffectivedisorderand-1725G/-25Thaplotypewit