简介：目的探讨胬肉逆向切除联合自体角膜缘干细胞移植治疗翼状胬肉的疗效。方法对2007年5月-2008年12月我院收治的78例（92只眼）翼状胬肉患者行胬肉逆向切除联合自体角膜缘干细胞移植术,术后随访6月-2年。结果除3眼复发外,余均治愈,复发率为3.26%。结论翼状胬肉逆向切除可使病灶切除更彻底,可减少组织损伤,角膜缘干细胞移植重建角膜缘,角膜上皮修复快,可有效防止翼状胬肉复发。

简介：目的探讨翼状胬肉切除联合自体角膜缘干细胞移植治疗复发性翼状胬肉的护理要点。方法回顾性分析总结我科对收治的25例(31眼)复发性翼状胬肉患者采用显微手术行翼状胬肉切除联合自体角膜缘干细胞移植术,术前、术中、术后与患者充分交流沟通并给予及时有效的护理措施。结果患者术后有轻度刺激症状,如异物感不适、流泪、轻度疼痛可忍受,仅有2例患者疼痛难忍,口服止痛药后缓解。全部病例随访6个月~2年,平均15个月。30眼痊愈,1眼术后8个月再复发,未出现植片移位、脱落,角膜感染等并发症,治愈率97%。结论翼状胬肉切除联合自体角膜缘干细胞移植治疗复发性翼状胬肉,配合恰当有效的围术期护理,可有效减少并发症,减低再复发率,是手术成功、患者康复的重要保证。

简介：目的探讨用翼状胬肉切除联合自体角膜缘干细胞移植术的围手术期护理措施。方法回顾分析我院收住的翼状胬肉并进行翼状胬肉切除联合自体角膜缘干细胞移植术的患者132例，进行围手术期护理，包括一般护理、专科护理、心理护理以及出院护理指导。结果多数患者术中配合度良好，所有患者均对手术耐受良好，无一例出院严重手术并发症，随诊术后复发率低。结论良好的围手术期护理，可以增加翼状胬肉切除联合自体角膜缘干细胞移植术患者的配合度和耐受性，减少并发症，增加患者满意度。

简介：目的对伴睑球粘连的复发性翼状胬肉,行球结膜瓣移植联合羊膜移植治疗作回顾性分析。方法30例伴睑球粘连的复发性翼状胬肉切除后,分离睑球粘连,创面行球结膜瓣移植联合羊膜移植,术后观察羊膜溶解及上皮修复情况。结果随访3-6月,2眼（6.7%）翼状胬肉复发,1眼（3.3%）睑球粘连复发。结论采用球结膜瓣移植联合羊膜移植治疗伴睑球粘连的复发性翼状胬肉,简单易行,成功率高。

简介：目的：观察翼状胬肉切除联合角膜缘干细胞移植及术后药物治疗翼状胬肉的临床疗效。方法：共行翼状胬肉切除联合角膜缘干细胞移植术治疗的翼状胬肉患者760例980眼。选取亚复发期的162例162眼进行观察,随机分为A,B两组,A组滴1g/L丝裂霉素C＋诺氟沙星滴眼液1～3mo;B组交替滴地塞米松滴眼液、双氯芬酸钠滴眼液1～3mo。结果：A组痊愈67眼（81.7%）,亚复发12眼（14.6%）,复发3眼（3.7%）。B组痊愈35眼（43.8%）,亚复发29眼（36.3%）,复发16眼（20.0%）。A组复发率明显低于B组（P〈0.01）。结论：翼状胬肉切除联合自体角膜缘干细胞移植术,无排斥反应、安全有效、术后复发率低,术后给予滴眼液后续治疗尤为重要,更能有效地抑制和降低翼状胬肉术后的复发率,能明显提高治疗效果。

简介：目的比较单纯翼状胬肉切除与干细胞移植术治疗翼状胬肉的临床效果。方法196例（255眼）翼状胬肉采用单纯胬肉切除术,212例（235眼）翼状胬肉采用自体角膜缘干细胞移植术,分别术后随访6到24月。结果术后复发率：单纯翼状胬肉切除术组为34.9%,自体角膜缘干细胞移植术组为3.4%,复发率两组比较差异有统计学意义（P〈0.01）。结论自体角膜缘干细胞移植为病变区提供了新的干细胞来源,治疗较单纯胬肉切除效果好,复发率低.手术简单易行,值得推广。

简介：目的比较自体角膜缘上皮移植术和翼状胬肉切除术联合应用丝裂霉素C的疗效观察.方法将翼状胬肉69例(74眼)随机分为A、B两组,A组33例(36眼)作单纯手术切除,并在术中、术后应用0.2mg/ml丝裂霉素C;B组36例(38眼)在胬肉切除的基础上行自体角膜缘上皮移植术.术后平均随访20个月,按Prabhasawat提出的标准进行疗效评价,比较两组的治愈率、复发率、视力及角膜散光度.结果A组36眼中31眼获得临床治愈,治愈率为86.11%,复发率为13.89%.B组35眼中33眼获得临床治愈,治愈率为94.74%,复发率为5.26%;两组的治愈率和复发率差异有显著性(P<0.05).在裸眼视力和角膜散光度方面,B组优于A组,差异有显著意义(P<0.05).结论自体角膜缘上皮移植有利于重建角膜缘屏障功能,利用该方法治疗翼状胬肉可提高治愈率,降低复发率.在减轻角膜散光,提高视力方面也优于手术联合丝裂霉素.

简介：目的比较自体角膜缘干细胞移植与单纯球结膜瓣移植治疗翼状胬肉的疗效.方法对125例（133眼）患者随机行翼状胬肉切除联合自体角膜缘干细胞移植63例（67眼）或翼状胬肉切除联合单纯球结膜瓣移植62例（66眼）治疗翼状胬肉,随访8-12月,观察手术效果.结果自体角膜缘干细胞移植组有4眼复发,复发率5.97％,单纯球结膜瓣移植组有5眼复发,复发率7.57％,两组相比较,差异无统计学意义（P＞0.05）.结论自体角膜缘干细胞移植与单纯球结膜瓣移植均能有效的治疗翼状胬肉,复发率相差不明显,但自体角膜缘干细胞移植组患者术后相对角膜上皮修复时间短,恢复快,异物感轻.

简介：目的:观察角膜缘干细胞培养液对血管内皮细胞增殖的影响。方法:分别培养角膜缘干细胞及球结膜上皮细胞,并通过免疫组化检测AE-5蛋白鉴别角膜缘干细胞。搜集两组培养细胞的上清液加入培养的人脐静脉血管内皮细胞中,并设立对照组。培养24h后通过MTT法检测细胞增殖情况并进行统计学分析。结果:角膜缘干细胞AE-5染色呈阴性,而球结膜上皮细胞为阳性。加入角膜缘干细球结膜上皮细胞和对照组培养液的血管内皮细胞MTT值分别为2.097±0.079,1.981±0.034和1.990±0.044。三组间有显著性差异(F=9.169,P=0.000)。加入角膜缘干细胞培养上清液的血管内皮细胞增殖活性明显高于其他两组(P=0.005和P=0.007)。结论:角膜缘干细胞培养液能够促进血管内皮细胞的增殖,这可能是角膜缘干细胞的特征。本研究从功能学角度为角膜缘干细胞理论提供更多的依据。

简介：角膜缘干细胞为正常角膜上皮的自我更新提供了来源,在维持眼表稳态中起到了极为重要的作用。近年来,随着对成体干细胞认识的加深以及生物组织工程学的发展,培养的口腔黏膜细胞片移植已成为治疗角膜缘干细胞缺损的方法之一。本文就其培养方法、细胞片表型及临床应用结果的进展进行综述。

简介：目的：探讨老年翼状胬肉切除与自体角膜缘干细胞移植术后硬性角膜接触镜的干预效果。方法：选取2015-03/2016-03经我院诊断为单侧翼胬肉老年患者90例90眼进行分组对比研究。观察组45例45眼采用自体角膜缘干细跑移植术后硬性角膜接触镜,对照组45例45眼行单纯自体角膜缘干细胞移植术。两组患者观察指标包括：角膜愈合时间和术后1、3、5、7d时两组患者疼痛程度（VAS评分）、胬肉复发几率。结果：观察组和对照组的角膜刺激症状评分存在统计学差异,观察组评分显著低于对照组患者（P〈0.05）。对照组患者角膜愈合时间高于观察组患者,差异具有统计学意义（P〈0.05）;VAS评分显示,术后1、2d时对照组患者高于观察组,两组比较差异具有统计学意义（P〈0.05）;两组患者胬肉愈合复发几率对比,差异无统计学意义（P〉0.05）。结论：自体角膜干细胞移植术后结合硬性角膜接触镜对老年翼状胬肉效果明显,患者愈合较快,还可减轻患者术后疼痛感,同时不会增加胬肉复发率。

简介：目的比较两种自体结膜移植治疗翼状胬肉的疗效。方法对64例（69只眼,其中有复发性翼状胬肉合并轻度睑球粘连的5只眼）分别用两种方法手术,均在显微镜下,其中33只眼行球结膜瓣转位移植术,另36只眼行自体角膜缘结膜移植术。术后随访6-18月。结果球结膜瓣转位移植术组有6只眼复发,复发率为18.18%。自体角膜缘结膜移植术组有2只眼复发,复发率为5.56%。两组复发率经统计学处理具有显著性差异（P﹤0.05）。结论翼状胬肉切除联合自体角膜缘结膜移植术是治疗胬肉的一种比较好的手术方法。

简介：AIM:Todeterminetheproliferativepotentialandthemaintenanceofstemcellactivityinstoredhumanlimbaltissues,andcorrelatethiswiththepreservationtime,cellviabilityandtheexpressionofstemcellmarkers.METHODS:Thirtylimbalrimsweresplitinto4partsandstoredincornealpreservationmediumat4℃for0,1,4,or7days.ThelimbalstemcellandmitoticmarkersP63,CK19,proliferatingcellnuclearantigen(PCNA),andKi67weredeterminedbyimmunohistochemicalstaining.Theproliferativepotentialoflimbalepithelialcellswasassessedbycellviability,theabilityofgeneratingstratifiedepithelium,andcolonyformingassay.RESULTS:Thestoredtissuesmaintainedlimbalstratifiedstructureto7daysandexhibitedcomparableexpressionlevelofstemcellandmitoticmarkers.Theproportionofviablecellsdecreasedwiththeprolongedpreservationtime,whilecolonyformingefficiencydecreasedfromthe1stdayanddisappearedatthe4thday.Wheninoculatedonamnioticmembrane,thecellspreservedfor1dayformedastratifiedepithelium,whilethecellsfrom4days’preservationformedadiscontinuouslayer.CONCLUSION:Thecolonyformingefficiencyoflimbalepithelialstem/progenitorcellsdecreasedrapidlywiththeincreasingpreservationtime,whiletheexpressionlevelofmarkersandcapacityofformingepithelialmonolayeronamnioticmembranedecreasedgradually.Thelimbalepithelialstemcellslosttheirfunctionearlierthanthelostexpressionlevelofstemcellmarkers.Thismayhelpustobetterchoosetheappropriatepreservationgraftsforfuturelimbalstemcelltransplantation.

简介：病例介绍病例1:患者,男,47岁。因右眼突然视力下降伴下方黑幕遮挡4天入院。原双眼有高度近视-14.00DS,入院时全身体检(-)。视力:右眼无光感,陈旧性视网膜脱离;左眼0.05(矫正)。左眼前节(-),眼底见9:30～4:00视网膜脱离,隆起度较高,累及黄斑区,颞上方约1:00时钟见一2PD大小马蹄孔。入院后第二天局部麻醉下行左眼冷凝加外加压加环扎术,外加压块、环扎带均位于赤道区,无放液并发症,手术顺利。术后第一天查眼底见脱离的

简介：患者男性,66岁.因进食梗咽1个月于2001年1月入院.胃镜检查示距门齿15～20cm处菜花样新生物,中央区缺损,质硬,占管腔1/2.GI示食管上段管壁增厚,最厚处2cm管腔狭窄,无胸水征.

简介：AIM:Topresentretinalmicrostructure,metabolismandfunctionabnormalitiesinthecourseofmultipleevanescentwhitedotsyndrome(MEWDS)byHeidelbergspectralismodalityimagingplatformandobserveitsoutcomebyEDI-SD-OCTandtwowavelengthautofluorescence.METHODS:Acaseofmultipleevanescentwhitedotsyndromeina23-year-oldfemalepresentedinitiallywitha15-dayhistoryoffloatersandacentralscotomaintherighteye.Toestablishthediagnosis,multimodalityimagingwasperformed,namely,bluelight-fundusautofluorescence(BL-FAF,excitation488nm,emission>500nm),near-infraredfundusautofluorescence(NIR-FAF,excitation787nm,emission>800nm)usingaconfocalscanninglaserophthalmoscope,fundusfluoresceinangiography(FFA),indocyaninegreenangiography(ICGA),spectrum-domainenhancedepthimagingopticalcoherencetomography(SD-EDI-OCT),multifocalelectroretinography(mf-ERG)andfundusphotograghwereperformedandfollowedupattheeighthmonthafterinitiallyvisiting.RESULTS:Opticalcoherencetomography(OCT)showedatransientdisruptionofthefovealphotoreceptoroutersegmentsincorrespondencetofovealgranularity.NIR-FAFshowedhypoautofluorescentareas,≤40μminsize,mostlyconcentratedaroundtheposteriorpoleanditstemporalsidelessthanthatinBL-FAF.Mf-ERGshowpinnacledisappearedinfoveaandmaculaandresponsesdecreasedmarkedlycomparedwiththefolloweye.Attheeighthmonthfollowup,hyperfluorescenceinBL-FAFweredisappear,while,NIR-FAFHypofluorescentspotsinearlystageofsuchlesionwerereduced.ButOCTdemonstratedthestructurewasrecoveredinresidualHypofluorescentareainNIR-FAF.Thesubfovealchoroidalthicknesswasdecreasedfrom372μmto307μmslightlyandcostlinewasrecovered.CONCLUSION:MEWDSisabenignself-healingdiseaseandthereisnopathologicalevidencetoinvestigatethenaturalcourseofsuchdisease.SD-OCTallowshighlydetailedimagesapproachinghistopathologytocertifythemicrostructura

简介：·AIM:Tostudytheeffectsofdanhonghuayukoufuye(DHK)onfastingbloodglucose(FBG)anddiabeticretinopathy(DR)instreptozotocin(STZ)-inducedtype1diabeticratstofacilitatetherationalusageofthisdrug.·METHODS:DiabeticratswereinducedbyinjectionofasingledoseofSTZintraperitoneallyat50mg/kg.Flashelectroretinogram(FERG)andoscillatorypotentials(OPs)wereusedtomeasureretinalfunction.Themicrovascularperfusionofearswasperformedtostudythemicrocirculationinrats.FBG,body-weight,and24-hurinevolume,waterintakeanddietintakewerealsoassessed.·RESULTS:DHKhadnoeffectonFBGinnormalrats.However,STZ+DHKgroupweresignificantlydifferentfromthoseofModelandmovedtowardthoseofnormalcontrol.Itreversedtheincreaseindietintake(P≤0.05vsmodelcontrol)andthelossinbody-weight(P≤0.05vsmodelcontrol)indiabeticrats.DHKdecreasedtheFBGofdiabeticratsby25.6%(P≤0.05)and37.9%(P≤0.01)after14and21daysadministrationascomparedwiththemodelcontrol,respectively.Moreover,DHKsignificantlyincreasedtheFERGb-waveamplitudeby80%(P≤0.05vsmodelcontrol)anddecreasedtheFERGb-wavelatencyby15.3%(P≤0.01vsmodelcontrol)after24daysadministration.TheOP1andOP2amplitudesinDHKgroupwere2.6(P≤0.01)and2.0(P≤0.01)timesofmodelgroupafter24daysofDHKtreatment,respectively.Atthesametime,OP1andOP2latenciesinDHKgroupreducedby16.0%(P≤0.001)and14.7%(P≤0.001)ascomparedwiththemodelcontrol,respectively.Furthermore,themicrovascularperfusionofDHKgroupwas2.4timesofmodelgroup(P≤0.001)after21daysadministration.·CONCLUSION:DHKhadnoeffectonnormalFBG.Butithadantihyperglycemicactivity,andhadapreventiveandtherapeuticeffectonDRindiabeticrats.·

简介：AIM:ToinvestigatetheeffectofY-27632onthesurvivalandneuriteoutgrowthoftheculturedretinalneurocytes.METHODS:Afterthepostnatalday2-3,Sprague-Dawleyretinalneurocyteswereculturedfor48hours,theculturemediawasreplacedwithserum-freemedia(controlgroup)andserum-freemediacontained30μmol/LY-27632(Y-27632group),andthecellswerecontinuallyculturedanother48hours.Theculturedretinalneurocyteswereidentifiedwithanti-neuronspecificenolase(NSE)immunocytochemistry.ThesurvivalstateofthosecellswasestimatedbyMTTassay,andtheneuriteoutgrowthofthosecellswasevaluatedbythecomputerizedimage-analysissystem.RESULTS:Comparedwiththecontrolgroup,theabsorbancevaluesofcellssurvivalinY-27632groupincreased12.90%and33.33%respectivelyafter72and96hoursculture.Y-27632hadnosignificanteffectonthediameterofculturedretinalneurocytes.Comparedwiththecontrolgroup,Y-27632inducedastableimprovementofneuriteoutgrowthofretinalneurocytesafter72and96hoursculture(P=0.001).CONCLUSION:Y-27632couldpromotethesurvivalandneuriteoutgrowthoftheearlypostnatalculturedretinalneurocytes.

简介：AIM:ExcessivedissolveofcornealtissueinducedbyMMPswhichwereactivatedbycytokinsandchemokineswillleadtocornealulcer.ThemolecularmechanismofLipoxinA4(LXA4)oncornealcollagendegradationinthreedimensionswasinvestigated.·METHODS:Rabbitcornealfibroblastswereharvestedandsuspendedinserum-freeMEM.TypeIcollagen,DMEM,collagenreconstitutionbufferandcornealfibroblastsuspensionweremixedonice.Theresultantmixturesolidifiedinanincubator,afterwhichtestreagentsandplasminogenwasoverlaidandthecultureswerereturnedtotheincubator.Thesupernatantsfromcollagengelincubationswerecollectedandtheamountofhydroxyprolineinthehydrolysatewasmeasured.ImmunoblotanalysisofMMP-1,-3andTMMP-1,-2wasperformed.MMP-2,-9wasdetectedbythemethodofGelatinzymography.Cytotoxicityassaywasmeasured.RESULTS:LXA4inhibitedcornealcollagendegradationinadoseandtimemanner.LXA4inhibitedtheIL-1βinducedincreasesinthepro-MMP-1,-2,-3,-9andactiveMMP-1,-2,-3,-9inaconcentrationdependentmanner.LXA4alsoinhibitedtheIL-1βinducedincreasesinTIMP-1,-2.CONCLUSION:Asapotentanti-inflammationreagent,LXA4caninhibitcornealcollagendegradationinducedbyIL-1βincornealfibroblaststhusinhibitingcornealdissolvingpathologyprocess.

简介：Thekeratoprosthesis(KPro;artificialcornea)isaspecialrefractivedevicetoreplacehumancorneabyusingheterogeneousformingmaterialsfortheimplantationintothedamagedeyesinordertoobtainacertainvision.Themainproblemsofartificialcorneaarethebiocompatibilityandstabilityofthetissueparticularlyinpenetratingkeratoplasty.Thecurrentstudiesoftissue-engineeredscaffoldmaterialsthroughcomprisingcompositesofnaturalandsyntheticbiopolymerstogetherhavedevelopedanewwaytoartificialcornea.Althoughawideagreementthatthelong-termstabilityofthesedeviceswouldbegreatlyimprovedbythepresenceofcorneacells,modificationofkeratoprosthesistosupportcorneacellsremainselusive.Mostofthestudiesoncornealsubstratematerialsandsurfacemodificationofcompositeshavetriedtoimprovethegrowthandbiocompatibilityofcorneacellswhichcannotonlyreducethestimulusofheterogeneousmaterials,butalsomoreimportantlycontinuousandstablecorneacellscanpreventthedestructionofcollagenase.Thenecrosisofstromaandspontaneousextrusionofthedevice,allowformaintenanceofaprecornealtearlayer,andplaytheroleofensuringagoodopticalsurfaceandresistingbacterialinfection.Asaresult,improvementincornealcellshasbeenthemainaimofseveralrecentinvestigations;someefforthasfocusedonbiomaterialforitswellbiologicalpropertiessuchaspromotingthegrowthofcorneacells.Thepurposeofthisreviewistosummarythegrowthstatusofthecornealcellsaftertheimplantationofseveralartificialcorneas.