学科分类
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59 个结果
  • 简介:视野使用红色视标的视野检查可以发现显著的视野异常.简单的测试如正切暗点计屏也很有效.精确评估视野缺损需要视野计:人工(Goldmann)或者自动(Humphery)视野计可以给出详细的视野参数.但是结果受操作者的主观操作影响.

  • 标签: 青光眼患者 评估 成年人 视野缺损 视野异常 视野检查
  • 简介:AIM:Toassessthequantitativeassociationbetweenanisometropiamagnitude(AM)andthelossesofresolutionandcontrastsensitivity;andtoexemplifyhowthefunctionoffusionandstereopsisvarywithAMinpreviouslyuntreatedanisometropicamblyopia.METHODS:Atotalof57patientswithpreviouslyuntreatedanisometropicamblyopiawithoutstrabismus(range:8-35years),weremeasuredrefractiveerror,bestcorrectedvisualacuity(BCVA),fusionandstereopsis,and48patientshavecompletedcontrastsensitivityfunctiontest.AMwasdeterminedbydioptricvectoradditionmodel,andtheamblyopiadepthwasdeterminedbythedifferenceofBCVAinlogMARunitsbetweentheamblyopicandfelloweyes.RESULTS:AMwassignificantlycorrelatedwithbothamblyopiadepth(PearsonR=0.728,P<0.001)andtheinter-oculardifferenceoftheareaunderthelogcontrastsensitivityfunction(AULCSF)(R=0.505,P<0.001).Depthofamblyopiaandtheinter-oculardifferenceofAULCSFwasalsosignificantlycorrelated(R=0.761,P<0.001).Themoreseverityofamblyopia,thepoorerlevelsofcontrastsensitivity.MostpureanisometropeswithAMwaslessthan3.0Dretainfusionandsomestereopsis,butwhenAMweremorethan3.0D,especiallyfortheanisometropeswhoseAMwasmorethan6.0D,fusionandstereopsisfunctionwereseriouslyimpaired.CONCLUSION:Inthepatientswithpreviouslyuntreatedanisometropicamblyopia,higherdegreeofanisometropiaissignificantlyassociatedwithdeeperamblyopia,worsecontrastsensitivity,fusionandstereopsisfunctions.

  • 标签: ANISOMETROPIA AMBLYOPIA areaunderthelog CONTRAST sensitivity function
  • 简介:Thedamageofhumancornealcellsencounterwiththeproblemofavailabilityofcornealcellsforreplacement.Limitationofthesourceofcornealcellshasbeenrealized.Anattemptofdevelopmentofcornealepithelial-likecellsfromthehumanskin-derivedprecursor(hSKPs)hasbeenmadeinthisstudy.Combinationofthreeessentialgrowthfactors:epidermalgrowthfactor(EGF),keratinocytegrowthfactor(KGF)andhepatocytegrowthfactor(HGF)coulddemonstratesuccessfullyinductionofhSKPstodifferentiationintocornealcells.Theinducedcellsexpressedtheappearanceofmarkersofcornealepithelialcellsasshownbythepresenceofkeratin3(K3)byantibodylabelandWesternblotassay.TheK3geneexpressionofinducedhSKPscellsasshownbyreversetranscription-polymerasechainreaction(RT-PCR)technologywasalsodemonstrated.ThepresenceofthesemarkersatbothgeneandproteinlevelscouldleadtoourconclusionthatthedirectionaltransdifferentiationofhSKPscellsintocornealepithelialcellswassuccessfullydoneunderthiscellinductionprotocol.Thefindingshowsanewlyavailablestemcellsourcecanbeobtainedfromeasilyavailableskin.Cellsfromautologoushumanskinmightbeusedforcornealdisordertreatmentinfutureclinicalapplication.

  • 标签: CORNEAL epithelial-like CELL human skin-derived PRECURSOR
  • 简介:目的对眼科住院医师实施白内障囊外摘除术及人工晶体植入术中,手术并发的预防及处理能力培训探讨。方法开展防盲治盲工作中,住院医师共施行215例(235只眼)的白内障囊外摘除术及人工晶体植入手术,对发生并发进行回顾性分析。结果术后发生的手术并发:后囊破裂15只眼(6.4%),虹膜脱出5只眼(2.1%),虹膜根部离断3只眼(1.3%),角膜水肿45只眼(19.1%),瞳孔上移10只眼(4.3%),前房皮质残留2只眼(0.9%),后囊瞳孔区皮质残留2只眼(0.9%),继发性瞳孔阻滞性青光眼1只眼(0.4%),黄斑囊样水肿1只眼(0.4%)。结论后囊膜破裂和角膜水肿是本组白内障囊外摘除术及人工晶体植入手术主要并发,住院医师手术者应规范掌握手术要点是预防并发发生的关键,对出现的手术并发应积极妥善处理是减少并发有效措施。

  • 标签: 白内障摘除术 人工晶体 手术并发症 培训
  • 简介:目的总结45例60岁以上老年患者行乙状窦后进路桥小脑角手术的围手术期治疗经验.方法对我科1991年1月至2000年1月行该手术治疗的45例老年患者进行回顾性分析.其中三叉神经痛37例;舌咽神经痛3例;半面痉挛4例;桥小脑角胆脂瘤1例.术前检查异常的有:心电图12例,占26.67%;胸部X线6例,占13.3%;颅脑CT2例,占4.44%,高血压病9例,占20%;糖尿病5例,占11.1%;肝功能异常3例,占6.67%;白细胞低2例,占4.44%;血小板减少2例,占4.44%.结果所有患者均顺利完成手术,术后无严重并发,均治愈出院,随访2~9年,症状无复发.结论老年患者虽然体质较弱,检查结果异常多,但只要正确处理围手术期的异常,提高手术技巧,老年患者完全能够耐受此类手术并顺利康复.

  • 标签: 乙状窦后进路 桥小脑角手术 围手术期 处理 治疗
  • 简介:AIM:Toreportthelong-termvision-threateningcomplicationsinpatientswhounderwentphakicintraocularlens(pIOLs)implantationforhighmyopia.METHODS:Thisstudywasdesignedfromaconsecutiveseriesofphakicintraocularlenscomplicationandcorrectivesurgeries.Sixteeneyesof13patientshadimplantationofphakicintraocularlensforcorrectionhighmyopiaanddevelopedseriouscomplicationshavebeenincludedinthisstudy.Themeanageofpatientswas38.6±6.35y(range32-50y)andthemeantimeofhistoryofpIOLimplantationforhighmyopiawas6±2y(range2-10y).Beforecorrectivesurgery,bestspectaclecorrectivevisualacuity(BSCVA)rangedfromperceptionto20/200intheeyesinwhichseverecomplicationsoccurred.RESULTS:Cornealdecompensationoccurredin12eyesof9highmyopicpatientsafteranteriorchamberpIOLimplantation.Rhegmatogenousretinaldetachment(RRD)occurredin4eyesof4highmyopicpatientsfollowinganteriorchamberandposteriorchamberpIOLimplantation.Patientswithcornealdecompensation,hadcombinedproceduresconsistingofpIOLremovalandpenetratingkeratoplasty(PKP).RemovalsofpIOL,phacoemulsificationandparsplanavitrectomy(PPV)withsiliconeoiltamponadewereperformedinpatientswithRRD.Aftercorrectivesurgeries,allpatientsbutone(P+,patient2,righteye)achievedmoderateBSCVArangedfrom20/200to20/50atthelastvisit.CONCLUSION:PhakicIOLsmaybeeffectiveforthecorrectionofhighmyopia.AlthoughtheseIOLsmayhaveseverecomplicationsanditaffectssafetyandefficacyofthissurgery.Asseenhere,cornealdecompensationandrhegmatogenousretinaldetachmentarepossiblepostoperativevision-threateningcomplicationsofphakicIOLs.Patientsmustbecarefullyexaminedbeforeandaftersurgeryforpossibleendothelialcelllossandvitreoretinalproblems.

  • 标签: PHAKIC INTRAOCULAR lens high MYOPIA complications
  • 简介:目的探讨超声联合人工晶体植入术治疗老年性白内障的临床疗效。方法选取2015年6月至2016年6月我院眼科收治的老年白内障患者83例作为研究对象。所有患者均接受超声乳化联合人工晶体植入术治疗,观察83例白内障患者治疗效果及治疗前后视力改善以及并发发生情况。结果83例患者均成功接受超声乳化联合人工晶体植入术治疗,围手术期未发生后囊膜破裂、玻璃体脱出、角膜失代偿、视网膜脱落等严重并发,术后轻度炎症2例,轻度角膜水肿1例,经对症治疗后痊愈;患者治疗后矫正视力、前房深度、房角开放程度均较治疗前明显改善,P〈0.05,具有统计学意义。结论采用超声乳化联合人工晶体植入术治疗老年白内障疗效显著,改善患者视力情况,并且手术安全性较高,具有临床应用及推广价值。

  • 标签: 超声乳化术 人工晶体植入术 老年性白内障 临床疗效
  • 简介:目的研究高纤维蛋白原血在突发性耳聋发病中的作用.方法40例诊断明确、发病在7d以内的患者为研究对象(共49只耳),42例正常健康作为对照组,分别对其血液流变学、血生化、全血细胞计数、凝血功能作检测,检测结果输入SPSS软件作处理进行统计学分析.结果突发性耳聋患者纤维蛋白原水平、红细胞聚集指数、血浆粘度明显高于对照组;差异有显著统计学意义(P<0.05),血浆凝血酶原时间、白陶土部分凝血活酶时间明显短于对照组,差异也有显著统计学意义(P<0.05),血生化和全血细胞计数无明显统计学意义(P>0.05).结论血浆纤维蛋白原水平的提高可能是突发性耳聋血管性病因中的主要因素.

  • 标签: 高纤维蛋白原血症 突发性耳聋 发病机理 血液流变学 血黏度
  • 简介:目的:探讨中老年糖尿病视网膜病变(diabeticretinopathy,DR)患者DR严重程度与血清HbA1c、TNF-α水平的相关性。方法:选取200例糖尿病患者,其中单纯糖尿病患者(DM组)60例,糖尿病伴非增殖期视网膜病变组(NPDR组)80例和糖尿病伴增殖期视网膜病变组(PDR组)60例,并选取80例健康者作为正常对照组(NC组)。观察患者的体检指标,并检测患者的空腹血糖(fastingplasmaglucose,FPG)、餐后2h血糖(2hPG)、血脂、血清糖化血红蛋白(HbA1c)、血清肿瘤坏死因子-α(tumornecrosisfactor,TNF-α)及泪液TNF-α。结果:(1)四组受试者的体质量指数(bodymassindex,BMI)、FPG、2hPG、总胆固醇(totalcholesterol,TC)、甘油三酯(trilycerides,TG)、高密度脂蛋白(highdensitylipoprotein,HDL-C)、低密度脂蛋白(low-densitylipoprotein,LDL-C)等指标比较,差异均具有统计学意义(F=37.211、395.421、42.515、7.385、121.764、121.568、34.567,均P<0.05)。DM、NPDR、PDR三组患者的BMI、FPG、2hPG、TC、TG、HDL-C、LDL-C等指标水平均高于NC组,差异有统计学意义(P<0.05);NPDR组患者的BMI、FPG、2hPG、TC、TG、HDL-C、LDL-C等指标水平均高于PDR组,差异有统计学意义(P<0.05)。(2)四组受试者血清TNF-α、泪液TNF-α及血清HbA1c水平比较,差异均具有统计学意义(F=337.256、215.471、40.522,均P<0.05);DM、NPDR、PDR三组患者的血清TNF-α、泪液TNF-α和血清HbA1c水平均高于NC组,差异有统计学意义(P<0.05);NPDR、PDR两组患者的血清TNF-α、泪液TNF-α和血清HbA1c水平均高于DM组,差异有统计学意义(P<0.05);PDR组患者的血清TNF-α、泪液TNF-α及血清HbA1c水平均高于NPDR组,差异有统计学意义(P<0.05)。(3)泪液TNF-α与血清TNF-α呈正相关(r=0.289,P<0.01);泪液TNF-α与血清HbA1c呈正相关(r=0.375,P<0.01)。结论:中老年DR患者泪液TNF-α水平高于正常人,且随着视网膜病变的加重,泪液TNF-α水平升高。泪液TNF-α与血清TNF-α、HbA1c呈正相关。

  • 标签: 糖尿病 糖尿病视网膜病变 糖化血红蛋白 肿瘤坏死因子-α 相关性
  • 简介:目的探讨用改良圈匙娩核并注重粘弹剂应用对防止小切口非超声乳化白内障囊外摘出人工晶体植入术并发的作用。方法用改良圈匙娩核并注重粘弹剂应用对355例白内障行小切口非超声乳化白内障人工晶体植入术。结果术后三天矫正视力≥0.5者291眼达82%,脱残339眼(95.5%)脱盲315眼(98.9%)。术后角膜水肿39眼,占10.98%均在3~6天后恢复透明。后囊破裂7眼,占1.97%,前房出血4眼,占1.13%。瞳孔轻度变形10眼,占2.8%,暂时性高眼压4眼,占1.13%。结论在行小切口白内障囊外摘出人工晶体植入时,应用改良后的圈匙娩核并注重粘弹剂应用,就会明显减少并发,达到良好的效果。

  • 标签: 白内障 小切口非超声乳化白内障摘除术 并发症
  • 简介:AIM:Toestablishanuntransfectedhumancornealstromal(HCS)celllineandcharacterizeitsbiocompatibilitytoacellularporcinecornealstroma(aPCS).·METHODS:PrimaryculturewasinitiatedwithapurepopulationofHCScellsinDMEM/F12media(pH7.2)containing20%fetalbovineserumandvariousnecessarygrowthfactors.Theestablishedcelllinewascharacterizedbygrowthproperty,chromosomeanalysis,tumorigenicityassay,expressionofmarkerproteinsandfunctionalproteins.Furthermore,thebiocompatibilityofHCScellswithaPCSwasexaminedthroughhistologicalandimmunocytochemistryanalysesandwithlight,electronmicroscopies.·RESULTS:HCScellsproliferatedtoconfluence2weekslaterinprimarycultureandhavebeensubculturedtopassage140sofar.AcontinuousuntransfectedHCScelllinewithapopulationdoublingtimeof41.44hoursatpassage80hasbeendetermined.Resultsofchromosomeanalysis,morphology,combinedwiththeresultsofexpressionofmarkerproteinandfunctionalproteinssuggestedthatthecellsretainedHCScellproperties.Furthermore,HCScellshavenotumorigenicity,andwithexcellentbiocompatibilitytoaPCS.·CONCLUSION:Anuntransfectedandnon-tumorigenicHCScelllinehasbeenestablished,andthecellsmaintainedpositiveexpressionofmarkerproteinsandfunctionalproteins.Thecellline,withexcellentbiocompatibilitytoaPCS,mightbeusedforinvitroreconstructionoftissue-engineeredHCS.

  • 标签: human CORNEAL STROMAL cells cell line
  • 简介:AIM:Toinvestigatethediffusioncharacteristicsofwaterofopticnerveandopticradiationinhealthyadultsanditsrelatedfactorsbydiffusiontensorimaging(DTI)at3T.METHODS:Atotalof107healthyvolunteersperformedheadconventionalMRIandbilateralopticnerveandopticradiationDTI.TheprimarydataofDTIwasprocessedbypost-processingsoftwareofDTIstudio2.3,obtainingfractionalanisotropyvalue,meandiffusivityvalue,principalenginevalue,orthogonalenginevaluebymeasuring,andanalyzedbytheSPSS13.0statisticalsoftware.RESULTS:Thebilateralopticnerveandopticradiationfiberspresentedgreencolorindirectionalencodedcolor(DEC)mapsandpresentedhighsignalinfractionalanisotropy(FA)maps.TheFAvalueoftheleftopticnervewas0.598±0.069andtherightwas0.593±0.065;themeandiffusivity(MD)valueoftheleftopticnervewas(1.324±0.349)×10-3mm2/sandtherightwas(1.312±0.350)x10-3mm2/s;theprincipalenginevalue(λ?)oftheleftopticnervewas(2.297±0.522)×10-4mm2/sandtherightwas(2.277±0.526)×10-3mm2/s;theorthogonalenginevalue(λ⊥)oftheleftopticnervewas(0.838±0.285)×10-3mm2/sandtherightwas(0.830±0.280)×10-3mm2/s;theFAvalueoftheleftopticradiationwas0.636±0.057andtherightwas0.628±0.056;themeandiffusivity(MD)valueoftheleftopticradiationwas(0.907±0.103)×10-3mm2/sandtherightwas(0.889±0.125)×10-3mm2/s;theprincipaleigenvalue(λⅡ)oftheleftopticradiationwas(1.655±0.210)×10-3mm2/sandtherightwas(1.614±0.171)×10-3mn2/s;theorthogonalenginvalue(λ⊥)oftheleftopticradiationwas(0.531±0.103)×10-3mm2/sandtherightwas(0.524±0.152)×10-3m

  • 标签: magnetic resonance IMAGING diffusion TENSOR IMAGING
  • 简介:AIM:Todemonstratethemorphologyandstructureofinvitroreconstructedtissue-engineeredhumancornealepithelium(TE-HCEP)withseedercellsfromanuntransfectedHCEPcellline.·METHODS:TheTE-HCEPswerereconstructedinvitrowithseedercellsfromanuntransfectedHCEPcellline,andscaffoldcarriersofdenudedamnioticmembrane(dAM)inair-liquidinterfaceculturefor3,5,7and9days,respectively.Thespecimenswereexaminedwithhematoxylin-eosin(HE)stainingofparaffin-section,immunocytochemicalstaining,scanningandtransmissionelectronmicroscopy.·RESULTS:DuringinvitroreconstructionofTE-HCEP,HCEPcellsformeda3-4,6-7and8-10layersofanHCEP-likestructureondAMsinair-liquidinterfaceculturefor3,5and7days,respectively.Butthecellsdeceasedto5-6layersandthestructureofstraifiedepitheliumbecamelooseatday9.Andthecellsmaintainedpositiveexpressionofmarkerproteins(keratin3andkeratin12),cell-junctionproteins(zonulaoccludens-1,E-cadherin,connexin43andintegrinβ1)andmembranetransportproteinofNa+-K+ATPase.TheHCEPcellsinTE-HCEPwererichinmicrovillionapicalsurfaceandestablishednumerouscell-cellandcell-dAMjunctionsatday5.·CONCLUSION:ThemorphologyandstructureofthereconstructedTE-HCEPweresimilartothoseofHCEPinvivo.TheHCEPcellsinthereconstructedTE-HCEPmaintainedthepropertiesofHCEPcells,includingabilitiesofformingintercellularandcell-extracellularmatrixjunctionsandabilitiesofperformingmembranetransportation.TheuntransfectedHCEPcellsanddAMscouldpromisinglybeusedinreconstructionHCEPequivalentforclinicalcornealepitheliumtransplantation.

  • 标签: tissue-engineered HUMAN CORNEAL epithelium in VITRO
  • 简介:AIM:Toevaluatetheaccuracyofsphericalequivalent(SE)estimatesofadouble-passsystemandtocompareitwithretinoscopy,subjectiverefractionandatablemountedautorefractor.METHODS:Non-cycloplegicrefractionwasperformedon125eyesof65healthyadults(age23.5±3.0years)fromOctober2010toJanuary2011usingretinoscopy,subjectiverefraction,autorefraction(AutokeratorefractometerTOPCONKR-8100,Japan)andadoublepasssystem(OpticalQualityAnalysisSystem,OQAS,VisiometricsS.L.,Spain).Nineconsecutivemeasurementswiththedouble-passsystemwereperformedonasubgroupof22eyestoassessrepeatability.ToevaluatethetruenessoftheOQASinstrument,theSElaboratorybiasbetweenthedoublepasssystemandtheothertechniqueswascalculated.RESULTS:TheSEmeancoefficientofrepeatabilityobtainedwas0.22D.SignificantcorrelationscouldbeestablishedbetweentheOQASandtheSEobtainedwithretinoscopy(r=0.956,P<0.001),subjectiverefraction(r=0.955,P<0.001)andautorefraction(r=0.957,P<0.001).ThedifferencesinSEbetweenthedouble-passsystemandtheothertechniquesweresignificant(P<0.001),butlackedclinicalrelevanceexceptforretinoscopy;Retinoscopygavemorehyperopicvaluesthanthedouble-passsystem-0.51±0.50Daswellasthesubjectiverefraction-0.23±0.50D;Moremyopicvalueswereachievedbymeansofautorefraction0.24±0.49D.CONCLUSION:Thedouble-passsystemprovidesaccurateandreliableestimatesoftheSEthatcanbeusedforclinicalstudies.Thistechniquecandeterminethecorrectfocuspositiontoassesstheocularopticalquality.However,ithasarelativelysmallmeasuringrangeincomparisonwithautorefractors(-8.00to+5.00D),andrequirespriorinformationontherefractivestateofthepatient.

  • 标签: DOUBLE-PASS system optical quality RETINOSCOPY autorefraction
  • 简介:目的:系统评价拉坦前列素(Latanoprost)滴眼液与噻吗心安(Timolol)滴眼液降眼压的有效性和安全性。方法:计算机检索PubMed,Medline,CNKI及中国生物医学文献数据库收录的,并辅以手工检索、因特网搜索的有关拉坦前列素与噻吗心安治疗原发性开角型青光眼和高眼压的随机对照试验(RCT)。按照纳入和排除标准限定研究对象,通过Jadad评分量表进行文献质量评估后,针对眼压下降比例、药物不良反应2项内容,使用Cochrane协作网提供的RevMan5.0软件进行Meta分析。结果:共纳入9项RCT,合计555例患者。Meta分析结果显示:(1)拉坦前列素滴眼液与噻吗心安滴眼液降眼压效果,在2,6,12wk时差异均有统计学意义(P<0.01),加权平均差(WMD)分别为:在2wk[WMD=-0.76,95%CI(-1.32,-0.20)],在6wk[WMD=-1.15,95%CI(-1.68,0.63)]和12wk[WMD=-1.01,95%CI(-1.42,-0.61)]。(2)随访结束时,结膜充血、异物感为拉坦前列素的两种较为常见的不良反应,但其发生率拉坦前列素组与噻吗心安组比较,结膜充血的发生率[OR=2.25,95%CI(0.99,5.08)],异物感的发生率[OR=2.48,95%CI(1.02,6.03)],显示二者差异均无统计学意义。结论:治疗原发性开角型青光眼和高眼压,拉坦前列素降眼压效果在用药12wk内较噻吗心安好;两者在12wk内引起结膜充血、异物感、虹膜色素加深、视野损害等的不良反应方面,差异不明显。由于纳入研究的样本量偏小,且方法学质量中等,致使本系统评价结果论证强度不高,因此还需要开展更多的高质量的临床随机对照研究,以便更客观、准确、全面地评价其疗效和安全性。

  • 标签: 拉坦前列素 噻吗心安 原发性开角型青光眼 高眼压症 有效性 安全性
  • 简介:AIM:Toassesstheawarenessofeyecomplicationsandtheprevalenceofretinopathy,inthefirstvisittoeyeclinic,amongtype2diabeticpatientsattendingatertiarymedicalcentreinKualaLumpur,Malaysia.METHODS:Aninvestigator-administeredquestionnairewasgivento137patientswithdiabetesundergoingfirsttimeeyescreeningintheeyeclinic.Thiswasfollowedbyadetailedfundusexaminationbyaseniorophthalmologisttoassessforpresenceofretinopathy.RESULTS:Almost86%ofrespondentswereawareofdiabeticeyecomplications,especiallyinpatientswhohadachievedtertiaryeducationallevel(96.3%).Themajorityofthepatients(78.8%)werereferredbytheirphysiciansandonly20.4%cameontheirowninitiative.Manyofthepatients(43.8%)didnotknowhowfrequenttheyshouldgoforaneyecheck-upand72.3%didnotknowwhattreatmentswereavailable.Lackofunderstandingondiabeticeyediseases(68.6%)wasthemainbarrierformostpatientsfornotcomingforeyescreeningearlier.Despiteahighlevelofawareness,only21.9%hadrecordedHbA1clevelof<6.5%while31.4%wereundertheerroneousassumptionofhavingagoodbloodsugarcontrol.Atotalof29.2%haddiabeticretinopathyintheirfirstvisiteyetesting.CONCLUSION:Inthepresentstudy,29.2%oftype2diabeticpatientshadretinopathyintheirfirsttimeeyetesting.Althoughtheawarenessofdiabeticeyecomplicationswashighamongfirsttimeeyescreeningpatients,theappropriateeyecare-seekingbehaviorwascomparativelylessandshouldberectifiedtopreventtheriseofthissightthreateningeyedisease.

  • 标签: DIABETIC RETINOPATHY eye COMPLICATIONS awa-reness eye
  • 简介:AIM:ToInvestigatetheeffectsoftransforminggrowthfactorβ2(TGF-β2)andconnectivetissuegrowthfactor(CTGF)ontransdifferentiationofhumanlensepithelialcells(HLECs)culturedinvitroandsynthesisofextracellularmatrix(ECM).METHODS:HLECsweretreatedwithTGF-β2(0,0.5,1.0,5,10μg/L)andCTGF(0,15,30,60,100μg/L)fordifferenttimes(0,24,48,72h)invitroandtheexpressionofα-smoothmuscleactin(α-SMA),themaincomponentoftheextracellularmatrixtypeⅠcollagen(Col-1)andfibronectin(Fn)weremeasuredbyusingreal-timepolymerasechainreaction(PCR)andwestern-blot.RESULTS:TGF-β2andCTGFsignificantlyincreasedexpressionofα-SMAmRNAandprotein(P<0.05,P<0.001),FnmRNAandprotein(P<0.001),Col-1mRNAandprotein(P<0.001).TGF-β2couldinduceHLECsexpressionofCTGFmRNAandproteinindosedependentmanner(P<0.05,P<0.001).TGF-β2andCTGFcouldinduceHLECstoexpressα-SMA,FnandCol-1intime-dependentmanner.EachtimeofTGF-β2andCTGFinducedHELCsexpressionofα-SMA,Fn,Col-1mRNAandproteinwassignificantincreasecomparedwithcontrol(P<0.05,P<0.001).CONCLUSION:TGF-β2andCTGFcouldinduceHLECsepithelialmesenchymaltransitionandECMsynthesis.

  • 标签: transforming GROWTH FACTOR β2 CONNECTIVE tissue