简介:眼内病毒感染多由疱疹病毒家族导致。在免疫功能正常者中,以病毒性前葡萄膜炎与急性视网膜坏死综合征较为常见。对免疫功能低下者,有巨细胞病毒视网膜炎及进行性外层视网膜坏死,两者均发生在获得性免疫缺陷综合征(AIDS)后期。其他非AIDS患者,如白血病、器官移植、恶性肿瘤或自身免疫性疾病,因长期使用免疫抑制剂亦可发生巨细胞病毒视网膜炎。本文结合文献分别对上述眼内病毒感染性疾病进行叙述。
简介:目的探索肺炎衣原体(Chlamydiapneumoniae,Cpn)与急性咽喉感染之间的关系.方法用直接免疫荧光(directimmunofluorescence,DIF)法检测外周血单核细胞中的Cpn特异性抗原,间接微量免疫荧光(microimmunofluorescence,MIF)法检测血浆中Cpn抗体.结果在94例急性咽喉感染患者和87例正常人血浆中,CpnIgG的阳性检出率分别为54.3%(51/94)和32.2%(28/87),P<0.05;CpnIgM的阳性检出率分别为59.6%(56/94)和12.6%(11/87),P<0.05;外周血单核细胞中的Cpn特异性抗原阳性检出率分别为62.78%(59/94)和31.0%(27/87),P<0.05.结论急性咽喉感染与肺炎衣原体有密切关系.检测外周血单核细胞中Cpn特异性抗原可为诊治急性咽喉感染提供实验依据.
简介:目的:观察结膜瓣遮盖联合虹膜嵌顿术治疗全层感染真菌性角膜炎的疗效。方法:分析2005-03/2011-04在邢台眼科医院行结膜瓣遮盖+虹膜嵌顿术的深部真菌性角膜炎患者26例26眼,全部的病灶的范围均〈(5×5)mm2,角膜刮片检查真菌菌丝全部为阳性;前房积脓(+),病灶均较致密,术前不能确定病灶累及深度;在术中,当病灶剖切至接近后弹力层深度时,根据临床特点,对于病灶累及角膜全层,但直径≤1mm的患者,人为在残余病灶的近周边处刺透角膜,造成角膜穿孔,自角膜穿孔或破溃处注吸前房积脓和抛光内皮斑后,将相邻近的虹膜嵌顿在角膜穿孔处,并用缝线固定1~2针,最后行结膜瓣遮盖术,尽量保持水密,术后继续给予抗真菌治疗并密切观察。结果:患者26例中有5例在病灶剖切中自行破溃,3例在病灶剖切中不慎切透,18例角膜基质床在剖切过程中完整;结膜上皮恢复时间为13.44±2.21d;24例感染得到控制,成功率为92%;2例因感染未控制而改为角膜移植术,最终控制感染。结论:结膜瓣遮盖联合虹膜嵌顿术是治疗小范围的全层真菌性角膜炎的有效方法,它可以控制感染,为以后的增视手术创造条件,适合在基层医院开展。
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.