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:·Thisisacasepresentationofaverybizarreopenglobetraumawithanteriorsegmentforeignbody-fishinghookstuckinthecorneaandiris.Complicationsduetothiskindofeyetraumamightbeveryhazardousandwithseriousimpactonvisualfunction.Wearerepresentingourapproachandexperienceofthreestepmanagementofthiskindofeyeinjury:first-extracttheforeignbody,closeandreconstructtheeyeball,second-fightinflammation,andthird-restorethevisualfunctionbycataractsurgery.·
简介:AIM:Tocomparetheeffectoftopicallyadministeredandsubconjunctivallyinjectedbevacizumabonexperimentalcornealneovascularizationinratsfortwoweeksaftertreatment.METHODS:Twenty-eightSprague-Dawleyratsweredividedintofourgroupsof7animals.Eachcornealcenterofrighteyewascauterizedwithsilver/potassiumnitratefor8s.Aftercornealburning,bevacizumab(12.5mg/mL)wastopicallyadministeredthreetimesperday(TBgroup)fortwoweeksorsubconjunctivallyinjectedondays2and4aftercauterization(0.02mL;SBgroup).Asnegativecontrols,ratsreceived0.9%salinetopicallythreetimesperday(TSgroup)orsubconjunctivallyondays2and4(0.02mL;SSgroup).Digitalphotographsofthecorneaweretaken1and2weeksaftertreatmentandanalyzedtodeterminetheareaofcorneacoveredbyneovascularizationasthepercentageofcornealneovascularization.RESULTS:Oneweekaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBandSBgroupsthanintheTSandSSgroups(allP<0.05).Twoweeksaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBgroupthanintheTSgroup(P<0.05).Inallgroups,thepercentageofneovascularizationwasdecreasingastimepassed(allP<0.05)CONCLUSION:Topicallyadministeredbevacizumabhaslongerstandinganti-angiogeniceffectthansubconjunctivallyinjectedbevacizumabincornealneovascularizationfollowingchemicalinjuryinrats.