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.
简介:AIM:Tostudyclinicalfeaturesandgenemutationswithinthepaired-likehomeodomaintranscriptionfactor2(PITX2)geneinapedigreeofbilaterallimbaldermoids.METHODS:Completeeyeexaminationshavebeenperformedoneachindividualofthefamily.Exonsofpaired-likehomeodomaintranscriptionfactor2(PITX2)wereamplifiedbypolymerasechainreaction,sequenced,andcomparedwithareferencedatabase.RESULTS:Wedescribedthephenotype,clinicfindingsinafamilywithtwoaffectedmembers.Themassesoftheproband’seyeswereexcisedsurgicallydemonstratingadermoidcystbyhistopathologicalexamination.NomutationwasdetectedinthegenePITX2inthispedigree.CONCLUSION:Afamilyoflimbaldermoidcystwasreported.Inaddition,nopathogenicsequencevariationswerefoundinPITX2,indicatingthatthisphenotypeinthisfamilyisadistinctiveentity.
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.
简介:·AIM:Toreportvariousocularinjuriescausedbydurianfruit.·METHODS:Threecasesofocularinjuriesweredescribedinyoungpatients,duetoaccidentalfallofdurianfruitontheforeheadandface,whiletheyweretakingrest/sleeping/playingundertheduriantree.·RESULTS:Theocularinjuriesobservedwerelaceratinginjuryofcorneawithirisincarceration,hyphema,superficialpenetratinginjuryofscleraandanglerecessionglaucomaintherighteyeoffirstpatient;laceratinginjuryofcorneawithirisprolapseinthelefteyeofsecondpatient;subconjunctivalhaemorrhage,traumaticmydriasisandsuperficialpenetratinginjuryofsclera,commotionretinopathyandmacularedemainthelefteyeofthirdpatient.Visionimprovedtonormalinalltheeyesfollowingsurgical/medical/opticaltreatment.·CONCLUSION:Evidenceofpenetratinginjury(becauseofthorns)andbluntinjury(becauseofweight)canbeseenintheeyeswhendurianfruitfallsontheface.Visioncanberecoveredfullywithimmediateandappropriatetreatmentinthesecases.Theocularinjuriescanbepreventedbyeducatingthepublictowearprotectivemetalframewidegogglesandnottosleep/takerestundertheduriantree.
简介:Oculardrugtransportbarriersposeachallengefordrugdeliverycomprisingtheocularsurfaceepithelium,thetearfilmandinternalbarriersoftheblood-aqueousandblood-retinabarriers.Oculardrugdeliveryefficiencydependsonthebarriersandtheclearancefromthechoroidal,conjunctivalvesselsandlymphatic.Traditionaldrugadministrationreducestheclinicalefficacyespeciallyforpoorwatersolublemoleculesandfortheposteriorsegmentoftheeye.Nanoparticles(NPs)havebeendesignedtoovercomethebarriers,increasethedrugpenetrationatthetargetsiteandprolongthedruglevelsbyfewinternalsofdrugadministrationsinlowerdoseswithoutanytoxicitycomparedtotheconventionaleyedrops.Withtheaidofhighspecificityandmultifunctionality,DNANPscanberesultedinhighertransfectionefficiencyforgenetherapy.NPscouldtargetatcornea,retinaandchoroidbysurficialapplicationsandintravitrealinjection.ThisreviewisconcernedwithrecentfindingsandapplicationsofNPsdrugdeliverysystemsforthetreatmentofdifferenteyediseases.
简介:目的观察雷珠单抗联合黄斑格栅样光凝治疗糖尿病黄斑水肿的临床疗效。方法将2015年2月至2017年1月确诊为DME患者79例(79眼),按随机数字表法分为2组。观察组40例,采用雷珠单抗联合黄斑格栅样光凝治疗;对照组39例,采用黄斑格栅样光凝治疗,于治疗后3月、6月时,记录2组患眼最佳矫正视力(BCVA)、黄斑中心厚度(CMT)的变化及不良反应的发生情况。结果治疗前,2组患者最佳矫正视力BCVA比较,差异无统计学意义(P〉0.05);治疗后3月及6月,观察组BCVA平均值均明显优于对照组,差异有统计学意义(P〈0.05)。治疗前,2组患者CMT比较,差异无统计学意义(P〉0.05);治疗后3月及6月,观察组CMT平均值均明显优于对照组,差异有统计学意义(P〈0.05)。观察组患者5例患者发生不良反应,经处理症状消失,无后遗症。结论雷珠单抗联合黄斑格栅样光凝治疗糖尿病黄斑水肿具有明显改善视力、加快水肿消退,减少复发等作用。
简介:AIM:Toinvestigatethetreatmentstatusandprognosisofspace-occupyinglacrimalglandlesionsatonetertiaryeyecenterinChina.·METHODS:Aretrospectiveclinicalstudywasperformedon95patientswithspace-occupyinglesionsofthelacrimalglandsurgicallytreatedattheEye&ENTHospitalofFudanUniversityfrom2003to2007.Thereviewedclinicaldataincludedage,gender,sideofthelesion,durationofsignsandsymptoms,histopathologicaldiagnosis,treatmentmodality,recurrence(local,regional,anddistantmetastasis)andsurvival.·RESULTS:Ofthe95cases(99eyes),pleomorphicadenomaswerethemostcommonlesions(43cases),followedbylymphoiddisorders(14),inflammatorypseudotumors(11),carcinomaex-pleomorphicadenomas(11),andadenoidcysticcarcinomas(ACC,6).Therewere8patientswithrelapsedpleomorphicadenomas.Fiveofthese8caseshadmalignantpathologicalchanges.AllpatientswithACChadmetastasisandthreeofthemdiedduringtheirfollow-up.·CONCLUSION:Ourstudyindicatedthatthemostcommonlacrimalglandlesionswerepleomorphicadenomas.Multiplerecurrenceandsurgicalproceduresmayincreasetheriskoftumorprogression.ACChadahighincidenceoftumormetastasisandapoorprognosis.
简介:目的:研究增殖细胞核抗原(proliferatingcellnuclearanti-gen,PCNA)和胰岛素样生长因子Ⅱ(insulin-likegrowthfactor-Ⅱ,IGF-Ⅱ)在翼状胬肉中表达的关系。方法:应用免疫组织化学SABC法检测40例原发性翼状胬肉组织标本,10例正常结膜组织标本中PCNA和IGF-Ⅱ蛋白的表达情况。结果:翼状胬肉组中PCNA,IGF-Ⅱ表达均高于正常结膜组(P〈0.01),IGF-Ⅱ与PCNA蛋白表达之间的相关系数为0.731(P〈0.01)。结论:翼状胬肉为一种具有肿瘤潜能的增生性眼表疾病。IGF-Ⅱ通过促进细胞增殖参与了翼状胬肉的发生、发展。
简介:AIM:TopresenttheresultsofimplantationofIakymenkokeratoprosthesisinfivepatientswithvascularizedcornealleukomacausedbysevereocularinjury.·METHODS:Iakymenkokeratoprosthesiswasimplantedinto5eyesof5patients:4patientsweresufferedfromchemicalburnsand1patientfromexplosiveinjury.Thepreoperativevisualacuityrangedfromlightperceptiontohandmotion.Theimplantationsurgerywascomposedoftwo-stageprocedures.Thefollow-upperiodwasfrom9monthsto11years.Theoutcomemeasureswerevisualacuity,retention,andcomplicationsofthekeratoprosthesis.·RESULTS:Visionimprovementswereachievedinmostpatients.Allkeratoprosthesiswereretainedwithinthefollow-upperiod.Cornealmeltingoccurredinonepatientandfibrousclosureinanotherpatient,bothofwhichweresuccessfullytreated.Retinaldetachmentoccurredinonepatientaftersurgery.·CONCLUSION:Iakymenkokeratoprosthesisseemstobeapromisingalternativeforthepatientswithseverecornealinjury,butfurtherinvestigationisneededtoevaluatetheroleofIakymenkokeratoprosthesis.
简介:目的:研究芪明颗粒联合格栅样激光光凝治疗糖尿病视网膜病变(diabeticretinopathy,DR)合并黄斑水肿(diabeticmacularedema,DME)的临床疗效。方法:本研究对象为2014-03/2017-03于我院治疗的50例98眼DR合并DME患者,按照治疗方式不同分为两组,对照组患者25例48眼采用格栅样激光光凝治疗,观察组患者25例50眼在此基础上联合芪明颗粒治疗。光学相干断层扫描(opticalcoherencetomography,OCT)及眼底血管造影(fundusfluoresceinangiography,FFA)评价两组患者DME消退情况并比较治疗前、治疗7d,1、3mo黄斑中心凹厚度(centralmacularthickness,CMT)和最佳矫正视力(bestcorrectedvisualacuity,BCVA)。结果:观察组总有效47眼,总有效率为94%,对照组治疗总有效40眼,总有效率为83%,观察组总有效率显著高于对照组,差异具有统计学意义(P<0.05)。两组治疗后BCVA均显著改善,观察组治疗7d,1、3mo均显著优于对照组,差异均有统计学意义(P<0.05)。两组治疗后CMT均显著降低,观察组治疗7d,1、3mo均显著低于对照组,差异均有统计学意义(P<0.05)。观察组和对照组分别出现高眼压2例2眼和1例1眼,给予降眼压药物后迅速缓解,其余无明显不良反应出现。结论:芪明颗粒联合格栅样激光光凝治疗能显著改善DR合并DME症状,降低CMT,改善视力。
简介:Mostoftheoculartumorshavepoorprognosis,andtheyremainadifficultproblemintheareaofophthalmology.Withtherapiddevelopmentofmolecularbiologyandimmunologictechniquesandthedeepresearchonoculartumorrelatedgenes,itbecomespossibletodiagnoseandtreatmalignanttumorsfromthemolecularlevel.Thetumornecrosisfactorrelatedapoptosis-inducingligand(TRAIL),amemberofthetumornecrosisfactor(TNF)superfamily,isapromisingcandidate,eitheraloneorincombinationwithestablishedcancertherapies,sinceitcaninitiateapoptosisthroughtheactivationoftheirdeathreceptors.TheabilityofTRAILtoselectivelyinduceapoptosisoftransformed,virus-infectedortumorcellsbutnotnormalcellspromotesthedevelopmentofTRAIL-basedcancertherapy.Here,wewillreviewTRAILanditsreceptors’structure,function,mechanismofactionandapplicationinoculartumorstherapy.