简介:目的通过检测Fas和FasL在鼻息肉中的表达,研究细胞凋亡和Fas/FasL系统在鼻息肉发病机制中的作用.方法用免疫组化方法检测Fas和FasL在35例鼻息肉和17例正常下鼻甲组织中的表达.对Fas和FasL阳性细胞的类型、分布特点进行分析.结果1.Fas和FasL在鼻息肉组织中的表达均较正常下鼻甲组织明显增强,差异有显著性.2.Fas在上皮细胞和间质细胞中都有阳性表达,主要表达于息肉表面的上皮细胞和间质内的炎性细胞中.结论1.Fas/FasL系统介导的凋亡在鼻息肉的发病机制中有重要作用,可能是鼻息肉长期保持良性增生的重要因素.2.FasL在鼻息肉上皮细胞中的高表达与上皮细胞的过度增生及Fas/FasL系统的免疫监视作用有关.
简介:目的探讨增殖相关基因Ki-67和凋亡相关基因Bax、Bcl-2在喉癌中的表达和临床意义.方法采用免疫组织化学SP法检测存档石蜡标本喉鳞状细胞癌50例、不典型增生36例、喉正常黏膜10例中Ki-67、Bax、Bcl-2的表达.结果Ki-67在以上三组的表达率分别为52%、50%、10%,Ki-67在喉癌的表达率明显高于喉正常黏膜(P<0.05),Ki-67在不典型增生中的表达率明显高于喉正常粘膜(P<0.05),Bcl-2在以上三组表达率分别为44%、11%、0%.Bcl-2在喉癌组表达明显高于不典型增生和正常黏膜组(P<0.05),Bax在以上三组表达率分别为76%、77%、78%、80%,各组之间差异无显著性.结论1.随着上皮细胞增殖活性增强,Ki-67表达增加,提示ki-67与喉癌的发生、发展有关,对表达增强者,应作进一步检查.2.Bcl-2检测结果,对鉴别喉部良、恶性病变有参考意义.
简介:<正>DirSir,IamdoctorGuo-YuanYang,fromtheDepartmentofOphthalmologyofWestChinaHospitalofSichuanUniversityinChengdu,SichuanProvince,China.Iwritetopresentacasereportofposteriorlentiglobuswithcataract.
简介:目的:比较雷珠单抗和光动力疗法(photodynamictherapy,PDT)治疗湿性年龄相关性黄斑变性(age-relatedmaculardegeneration,AMD)的临床疗效。方法:回顾性分析23例PDT治疗的湿性AMD患者和23例予雷珠单抗玻璃体腔内注射治疗的湿性AMD患者的资料,比较两组在治疗后1,3,6mo的视力、OCT及FFA变化情况。结果:两组患者术后1,3mo视力均得到明显提高,两组在统计学意义上无显著差异,雷珠单抗组有2例(9%)患者在治疗后6mo出现视力回降现象,PDT组患者在术后3mo及术后6mo视力变化稳定。结论:雷珠单抗和PDT治疗湿性AMD,均能有效控制湿性AMD患者病情发展并能改善患者视力,两种疗法疗效的比较在短期内无统计学意义,但是术后6mo,PDT的稳定性优于雷珠单抗。
简介:目的探讨鼻内镜辅助下颈前小切121甲状腺手术的疗效、临床经验和手术注意事项,并与传统手术进行比较。方法我科术前确诊的单发甲状腺腺瘤患者26例,肿瘤最大直径〈4.0cm,均行鼻内镜辅助颈前小切口腺叶切除术,观察疗效,并与同期具有可比性的30例经传统手术治疗的患者资料进行比较。结果2组患者的肿块均完整切除,切口均Ⅰ期愈合。术后无声音嘶哑、呛咳、继发血肿等并发症。无手术死亡病例。鼻内镜辅助下颈前小切口组的手术时间较对照组长(t=9.139,P〈0.05),术中出血量较对照组大(t=12.648,P〈0.05)。小切口组患者的瘢痕长度、患者满意度、住院天数明显优于对照组,差异有统计学意义(P〈0.05)。结论鼻内镜辅助下颈前小切口甲状腺手术安全、可靠,能有效避免神经、血管损伤,具有并发症少、微创、美容的优点,值得临床推广。
简介:目的:使用Pentacam三维眼前段分析仪比较高度近视眼与正常人(正视眼)中央前房深度(centralanteriorchamberdepth,CACD)和前房角(anteriorchamberangle,ACA)两项前房参数差异,进一步了解高度近视眼的解剖学特点。方法:收集2010-10/2011-06在我院门诊就诊的正视眼82例,收集同期我院门诊与准分子激光中心就诊的高度近视眼68例,采用Pentacam三维眼前段分析仪测量CACD和ACA。对高度近视组与正视眼组的前房参数值进行两样本t检验,比较两组间参数有无差异。结果:Pentacam三维眼前段分析仪测得正常人CACD平均值为3.02±0.47mm,ACA平均值为33.26°±6.20°。高度近视眼的CACD平均值为3.24±0.38mm,ACA的平均值为39.55°±6.68°。高度近视眼与正视眼的两项前房参数值均存在显著性差异(均P〈0.05)。结论:Pentacam三维眼前段分析仪测量前房参数,高度近视眼与正视眼相比中央前房深度深、前房角宽。
简介:目的:观察视网膜视盘周围视网膜神经纤维层(retinanervefiberlayer,RNFL)厚度和神经节细胞复合体(ganglioncellcomplex,GCC)厚度对慢性原发性闭角型青光眼(chronicprimaryangle-closureglaucoma,CPACG)的诊断价值,研究其和平均视野缺损(MD)的相关性。方法:选取早期CPACG患者21例38眼,疑似青光眼(suspectedglaucoma,SG)患者25例46眼和正常对照25例49眼进行SD-OCT检查,测量平均及各个象限的RNFL厚度和GCC厚度,分析RNFL厚度和GCC厚度与视野MD的相关性。结果:CPACG组的平均和各象限RNFL厚度和GCC厚度与正常对照存在显著性差异(P〈0.01),与SG组比较,平均及上方(P〈0.01)、下方(P〈0.05)RNFL厚度存在显著性差异,平均和各象限GCC厚度存在显著性差异(P〈0.01)。CPACG组RNFL(r=0.65)、GCC(r=0.72)均与MD呈明显的正相关。结论:RNFL厚度和GCC厚度对早期CPACG的诊断和病情监测中具有临床价值,GCC厚度的临床意义可能更佳。
简介:AIM:Tocomparethetrabecularmeshwork(TM)andirisapoptosisoftreatedanduntreatedprimaryopenangleglaucoma(POAG)patients.METHODS:Eighttreatment-naive,newlydiagnosed(group1)and11medlcaiytreated(group2)patientswithPOAGwereincludedinthestudy.Eachpatientunderwentalimbus-basedtrabeculectomy.TheTMandperipheralirisspecimensweredissectedoutandweresnap-frozeninliquidnitrogenandstoredat-80tuntiltheywereassayed.ApoptosisineachgroupwasassesedbyTUNELmethod.RESULTS:Themeanpatientagewas60.6±5.8years(53-68years)vs58.9±8.9years(47-70years)ingroup1andgroup2(P=0.859).Themeantreatmenttimeingroup2was22.2±7.3months(12-34months).ApoptoticindexesinTMandirisweresignificantlyhigherinPOAGpatientsusingmedication(group2)comparedtotreatment-naivePOAGpatients(group1)(P=0.004,0.015;respectively).CONCLUSION:LongtermadministrationoftopicalantiglaucomamedicationscausesadditionaltoxiceffectsonTM.
简介:AIM:Toevaluatetheeffectofbrinzolamide-timololfixedcombinationonintraocularpressure(IOP)aftercataractsurgery.METHODS:Thestudyincluded92eyesof87patientswhounderwentcataractsurgeryandintraocularlensimplantation.Patientsscheduledforphacoemulsificationwereassignedto1of2groups.Thetreatmentgroupreceived1dropofbrinzolamide-timololfixedcombinationimmediatelyaftersurgery,andthecontrolgroupreceivednotreatment.TheIOPwasmeasuredpreoperativelyandat2hand24hpostoperatively.RESULTS:ThemeanIOPchangewaslowerinthetreatmentgroupthaninthecontrolgroupat2hpostoperatively.ThedifferencebetweenthemeanIOPvaluesofthetwogroupsat2hpostoperativelywasfoundtobestatisticallysignificant.Twenty-fourhoursafterthesurgery,themeanIOPchangewasstillhigherinthecontrolgroupwhencomparedtothetreatmentgroup.CONCLUSION:ThefixedcombinationbrinzolamidetimololcaneffectivelyreduceIOPaftercataractsurgery.
简介:AIM:ToinvestigatetheexpressionsoftypeIcollagen,α2integrinandβ1integrinintheposteriorscleraofguineapigswithdefocusmyopiaandwhetherbasicfibroblastgrowthfactor(bFGF)injectioninhibitstheformationanddevelopmentofmyopiabyupregulatingtheexpressionoftypeIcollagen,α2integrinandβ1integrin.METHODS:After14daysoftreatment,therefractivestateandaxiallengthweremeasuredandthelevelsoftypeIcollagen,α2integrinandβ1integrinwereassayedintheposteriorscleraeofgroupsofguineapigsthatworeamonocular-7Dpolymethylmethacrylate(PMMA)lensorhad-7DlenswearfollowedbytheperibulbarinjectionofPhosphateBufferSolution(PBS)orbFGF.Theuntreatedfelloweyeservedasacontrol.Guineapigswithnotreatmentservedasnormalgroup.·RESULTS:Theresultsshowedthat14daysofmonoculardefocusincreasedaxialeyelengthandrefraction,whilebFGFdeliveryinhibitedthemmarkedly.Further,itwasalsofoundthatthemonocular-7DlenscoulddecreasethelevelsoftypeIcollagen,α2integrinandβ1integrinexpressions,while,unlikePBS,bFGFincreasedthemsignificantlyincomparisontocontralateralcontroleyesandnormaleyes.CONCLUSION:bFGFcanpreventtheformationanddevelopmentofdefocusmyopiabyupregulatingtheexpressionsoftypeIcollagen,α2integrinandβ1integrin.Takentogether,ourresultsdemonstratethatbFGFpromotesscleraremodelingtopreventmyopiainguineapigs.
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.
简介:AIM:Toexaminetheα-Galgeneexpressionanddistributioninthedifferentspecies/genusanddevelopingphaseanimalocularsurfacetissue.METHODS:α-Galbindingassaywerecarriedoutonvariousanimaleyesections.Photograph,slit-lampobservationonvariouseyeshowednormalcornealtransparence.RESULTS:Astrongα-Galexpressionininvertebratesandsomevertebratesoculartissue,butnoα-Galbindinginbirds,fishandmammal.α-Galexpressionchangeinthedevelopmentofmiceocularsurfacetissue(exceptsclera)anddisplaygenusdependencyinthedifferentmurineocularsurfacetissue.CONCLUSION:Thisstudyidentifiedspecificα-Galepitopesbindingareaintheocularsurfaceofseveralspeciesandmaysolvetheproblemthatnaiveocularsurfacemaybeusedasnaturalα-Galgeneknockoutmodel/highriskimmunologicrejectionmodelorocularsurfacescaffoldmaterial.