简介:·AIM:ToexploretheimmunomodulatoryeffectsofcurdlanoninnateimmuneresponsesagainstAspergillusfumigatus(A.fumigatus)inculturedhumancornealepithelialcells(HCECs),andwhetherC-typelectinreceptorDectin-1mediatestheimmunomodulatoryeffectsofcurdlan.·METHODS:TheHCECswerestimulatedbycurdlanindifferentconcentrations(50,100,200,400μg/mL)forvarioustime.ThenHCECspretreatedwithorwithoutlaminarin(Dectin-1blocker,0.3mg/mL)andcurdlanwerestimulatedbyA.fumigatushyphae.ThemRNAandproteinproductionoftumornecrosisfactor-α(TNF-α)andinterleukin-6(IL-6)weredeterminedbyreal-timequantitativepolymerasechainreactionandenzyme-linkedimmunosorbentassay,respectively.TheproteinlevelofDectin-1wasmeasuredbyWesternblot.·RESULTS:CurdlanstimulatedmRNAexpressionofTNF-αandIL-6inadoseandtimedependentmannerinHCECs.CurdlanpretreatmentbeforeA.fumigatushyphaestimulationsignificantlyenhancedtheexpressionofTNF-αandIL-6atmRNAandproteinlevelscomparedwithA.fumigatushyphaestimulationgroup(P<0.05).BothcurdlanandA.fumigatushyphaeup-regulatedDectin-1proteinexpressioninHCECs,andDectin-1expressionwaselevatedto1.5-to2-foldbycurdlanpretreatmentfollowedhyphaestimulation.TheDectin-1blockerlaminarinsuppressedthemRNAexpressionandproteinproductionofTNF-αandIL-6inducedbycurdlanandhyphae(P<0.05).·CONCLUSION:ThesefindingsdemonstratedthatcurdlanpretreatmentenhancedtheinflammatoryresponseinducedbyA.fumigatushyphaeinHCECs.Dectin-1isessentialfortheimmunomodulatoryeffectsofcurdlan.Curdlanmayhavehighclinicalapplicationvaluesinfungalkeratitistreatment.
简介:AIM:Toinvestigatetheexpressionofdendriticcell-associatedC-typelectin-1(dectin-1)attheearlyperiodofAspergillusfumigatusinfectioninrat’scornealepithelium.·METHODS:Atotalof72Wistarratswererandomlydividedintothreegroups:A,BandC.Therighteyeswerechosenasexperimentaleyes.GroupAwascontrolgroup.RatsingroupBwerenotinoculatedwithAspergillusfumigatus.GroupCwastakenasAspergillusfumigatuskeratitismodel.RatsingroupBandC(sixfromeachgroup)wereexecutedrandomlyat4,8,16and24hoursafterexperimentalmodelbeingestablishedtoassesstheexpressionofdectin-1mRNAthroughreal-timePCR.AnothersixratsingroupBandCwereexecutedrandomlyat24hourstoassesstheexpressionofdectin-1proteinthroughimmunohistochemistry.·RESULTS:Theresultsofreal-timePCRindicatedthatdectin-1mRNAexpressionwaslowincornealepitheliumofnormalrats’.Therewasnosignificantlydifferenceofdectin-1mRNAexpressioningroupAandB(P>0.05).TheexpressionofAspergillusfumigatusinfectedcornealepitheliumincreasedgraduallyafter8hoursingroupC.ThesynchronousexpressionofgroupAandChadsignificantdifference(P<0.01).Immunohistochemistydiscoveredthatdectin-1receptorexistedinnormalrat’scornealepithelium.Dectin-1proteinincreasedafter24hoursingroupC.TherewasasignificantdifferenceofsynchronousexpressioningroupBandC(P<0.01).·CONCLUSION:Dectin-1existsinrat’scornealepitheliumanditsexpressionsignificantlyincreasesattheearlyperiodofAspergillusfumigatusinfection.Dectin-1isapatternrecognitionreceptorthatexpressesincornealepitheliumandinvolvesinimmuneresponsetoAspergillusfungalkeratitis.
简介:AIM:TocomprehensivelyevaluatethepotentialassociationofCOL1A1polymorphismswithhighmyopiabyasystematicreviewandMeta-analysis.METHODS:AllassociationstudiesonCOL1A1andhighmyopiareporteduptoJune10,2014inPubMed,Embase,WebofScience,andtheChineseBiomedicalDatabasewereretrieved.Oddsratios(ORs)and95%confidenceintervals(95%CIs)wereanalyzedforsinglenucleotidepolymorphisms(SNPs)usingfixed-andrandom-effectsmodelsaccordingtobetween-studyheterogeneity.PublicationbiasanalyseswereconductedbyEgger’stest.RESULTS:Atotaloffourstudiesfromreportedpaperswereincludedinthisanalysis.TheMeta-analysesforCOL1A1rs2075555,composedof2304highmyopiapatientsand2272controls,failedtodetectanysignificantassociationwithhighmyopia.Atotalof971casesand649controlsweretestedforCOL1A1rs2269336.TheassociationofCOL1A1rs2269336withhighmyopiawasobservedinrecessivemodel(CCvsCG+GG,P=0.03)andinheterozygousmodel(CGvsGG,P=0.04),butnotinothermodels.CONCLUSION:ThisMeta-analysisshowsthatCOL1A1rs2269336(CCvsCG+GG)affectsindividualsusceptibilitytohighmyopia,whereasthereisnoassociationdetectedbetweenSNPsrs2075555andhighmyopia.Giventhelimitedsamplesize,furtherinvestigationsincludingmoreethnicgroupsarerequiredtovalidatetheassociation.
简介:患者,男,51岁,2004年8月因“左眼颈椎手术后视物不见2个月”至本院就诊。左眼:视力无光感,眼球各方向运动中度受限,屈光介质透明,瞳孔散大,直接对光(-),间接对光反应迟钝,视网膜灰黄色,血管变细,视乳头苍白,脉络膜背景污秽色,眼底无出血渗出。右眼:无阳性体征。现病史:患者2004年6月因“无骨折脱位性颈脊髓损伤并不全瘫”在当地医院行颈椎手术。麻醉方式:静脉复合麻醉,俯卧,颈部过伸位。手术持续时间:4小时40分。术前患者双眼视力均正常,苏醒后即左眼视物完全不见,右眼正常,当地医院眼科检查治疗情况不详。我院诊断:左眼部缺血综合征。
简介:DearEditor,IamSatoruKase,fromtheDepartmentofOphthalmology,FacultyofMedicineandGraduateSchoolofMedicine,HokkaidoUniversity,SapporoCity,Japan.Iwritetopresentacaseofneurofibromatosistype1(NF1)showingmassivehemorrhageduringinvolutionalblepharoptosissurgery.