简介：目的：研究泪小管炎的主要致病菌及药物敏感性,为临床合理用药提供依据。方法：选取西安市第一医院就诊的泪小管炎患者57例57眼,取泪小管分泌物行细菌培养及药敏试验;对泪小管内排出的硫磺颗粒碾开涂片以寻找放线菌。结果：泪小管炎患者57例57眼中,有56眼挤压泪小管见硫磺颗粒经泪点排出,取硫磺颗粒碾开涂片均见放线菌。57眼患眼取泪小管分泌物进行细菌培养,55眼为阳性,共培养出菌株63株,主要为表皮葡萄球菌、草绿色链球菌和肺炎球菌,其他菌种少见。药物敏感性试验结果显示：利福平、头孢西丁、氯霉素、美洛西林等药物敏感性较高。结论：放线菌为泪小管炎的主要致病菌,且大部分存在于其他细菌的合并感染。利福平、头孢西丁、氯霉素、美洛西林等药物治疗泪小管炎敏感性高。

简介：AIM:Todeterminewhethersinglenucleotidepolymorphism(SNP)rs641153isassociatedwiththeriskofage-relatedmaculardegeneration(AMD),weperformedasystematicmeta-analysisof15eligiblestudies.SNPinthecomplementfactorB(CFB)geneisconsideredtohavesignificantassociationwithAMDsusceptibility,butthereisgreatdiscrepancyintheseresults.METHODS:TheeligiblestudieswereidentifiedbysearchingthedatabasesofPubMed,EMBASE,andWebofScience.Oddsratios(ORs)with95%confidenceintervals(CIs)wereusedtoassesstheassociation.AlldatawereanalyzedusingStatasoftware.RESULTS:Theassociationbetweenrs641153andAMDriskwasstatisticallysignificantunderthehomozygousmodel(AAvsGG:OR=0.26,95%CI=0.15-0.45,P_h=0.973,/~2=0.0%,fixedeffects),dominantmodel(AA+GAvsGG:OR=0.49,95%CI=0.40-0.59,P_h=0.004,/~2=56.4%,randomeffects)andrecessivemodel(AAvsGA+GG:OR=0.30,95%CI=0.17-0.51,R_n=0.983,I~2=0.0%,fixedeffects).Thesameresultswerealsoobservedinthestratifiedanalysesbyethnicity,sourceofcontrolandsamplesize.CONCLUSION:Ourmeta-analysissuggeststhatrs641153intheCFBgenemayplayaprotectiveroleinAMDsusceptibility,thelateAMDinparticular,bothinCaucasiansandinAsians.