简介：相当部分的喉癌患者确诊时已是Ⅲ期或Ⅳ期,传统治疗方案中喉全切除术的比率较高,而喉全切除术是令患者最难以接受的治疗方案.对于一些局部晚期喉癌患者,即肿瘤局部浸润程度较高（T3～T4）而淋巴转移较少（N0～N1）,以顺铂为基础的同步放化疗不仅保留了喉功能,而且其远期生存率与手术为主的传统治疗方案相当,本文就喉癌的同步放化疗研究进展进行综述.

简介：年龄相关性黄斑变性（age-relatedmaculardegeneration，AMD）是老年人致盲的主要原因。关于AMD的发病机制最近有研究表明，其发病与免疫炎症反应关系密切。本文就炎症介质合成与分泌、补体系统、免疫相关细胞与炎症细胞等方面探讨AMD与免疫炎症反应的关系。

简介：<正>弓形虫病是由弓形虫引起的一种人兽共患性疾病,据报道全世界有5～10亿人受其感染。人患弓形虫病,其临床表现常因侵犯脏器不同而异,内,外、妇、儿、神经精神、传染病、肿瘤、眼、耳鼻喉科以及输血、器官移植、免疫缺陷等都与之密切关系,我们过去临床报道很少,主要与医院未开展弓形虫病检测以及手段落后有关。我们运用高

简介：目的：探讨获得性免疫缺陷综合征（acquredimmunodeficiencysyndrome，AIDS，简称艾滋病）发生视乳头病变的类型及其与CD4^＋T淋巴细胞的关系。方法：回顾分析107例（214眼）艾滋病患者经眼底彩照及眼底荧光血管造影（fluoresceinangiography，FFA）检查确诊的视乳头病变患者，统计AIDS性视乳头病变的发生率及病变类型以及与CD^＋T淋巴细胞数之间的关系。结果：107例（214跟）AIDS患者发生视乳头病变71眼，占33．2％；其中，前段缺血性视神经病变30眼，占42．2％（30／71）；视盘水肿12眼，占16．9％（12／71）；无体征性视神经病变29眼，占40．8％（29／71）。CD4^＋T淋巴细胞≤50个／μ发生视乳头病变59眼，未发生视乳头病变75眼，发病率44．0％（59／134）；CD^4＋T淋巴细胞≥51个／μL发生视乳头病变12眼，未发生视乳头病变68眼，发病率15．0％（12／80）。经双侧检测统计：χ^2=19．042，P=0．000。说明组间具有显著差异性。结论：AIDS视乳头病变的类型呈多样性，且CD^4＋T淋巴细胞数越少，发生视乳头病变的几率越大。

简介：目的构建肺炎链球菌自溶素（pneumococcalautolysin，LytA）核酸疫苗，并研究其免疫原性。方法采用聚合酶链反应方法从肺炎链球菌基因组中克隆肺炎链球菌自溶素基因，然后将该基因插入到pVAX1真核表达载体中，构建表达LytA的重组质粒，制备成超螺旋比例大于90％的核酸疫苗。实验组：BALB／c小鼠5只，对其分3次肌内注射核酸疫苗（100μg）；对照组：BALB／c小鼠5只，肌内注射pVAX1空载体（100μg）3次。分别采集小鼠血清，采用间接酶联免疫吸附方法测定血清LytA特异性抗体水平。结果扩增出的LytA基因（957bp）与基因库中LytA的编码序列（957bp）一致。成功构建了LytA核酸疫苗。实验组小鼠的血清LytA抗体水平明显高于对照组，差异有统计学意义（P〈0．01）。结论成功克隆了LytA基因，制备了LytA核酸疫苗，后者可在小鼠体内诱导较强的特异性体液免疫反应。

简介：AIM:Toassesstheeffectivenessofimmunosuppressantsintheprophylaxisofcornealallograftrejectionafterhigh-riskkeratoplastyandnormal-riskkeratoplasty.METHODS:WesearchedtheCochraneCentralRegisterofControlledTrials(CENTRAL),MEDLINE,EMBASE,CNKI,VIPandreferencelistsofarticles.Dateofmostrecentsearch:18June,2011.Allrandomisedcontrolledtrials(RCTs)assessingtheuseofimmunosupressantsinthepreventionofgraftrejection,irrespectiveofpublicationlanguage.Twoauthorsassessedtrialqualityandextracteddataindependently.Onlydichotomousoutcomes(cleargraftsurvival,ratioofimmunereactionsandsideeffects)wereavailableandwereexpressedasrelativerisk(RR)and95%confidenceintervals(CI).RESULTS:Sevenstudieswereincludedinthisreview.Inthecomparingofmycophenolatemofetil(MMF)withplacebo,theresultsshowedMMFcouldsignificantlyreduceimmunereactionscomparedwithplacebo(RR1.0895%Cl0.95to1.21),butnoeffectoncleargraftsurvival(RR1.1195%Cl0.90to1.35).Incleargraftsurvivalandimmunereactions,MMFandcyclosporineA(CsA)showedsimilareffect(RR1.1195%Cl0.90to1.35,andRR1.48,95%Cl0.56to3.93,respectively).Tacrolimus(FK506)andsteroidshowedsimilareffectsoncleargraftsurvivalandimmunereactions(RR0.32,95%CI0.02to6.21,andRR1.00,95%CI0.88to1.14,respectively).Nodrugrelativesideeffecthasbeenfound.CONCLUSION:MMFmayreduceimmunereactionsinbothnormal-riskandhigh-riskrejectionofpenetratingkeratoplasty.CsAandFK506showedsimilareffectsasMMF.However,duetothelackoflargeclinicaltrials,theevidenceremainweak,thequalityofevidenceswereratedasverylowtomoderate.Large,properlyrandomised,placebo-controlled,doublemaskedtrialsareneededtoevaluatetheeffectofimmunosuppressants.

简介：·AIM:Toexploretheeffectofimmunizationwithcopolymer-1(COP-1)andretinalstemcells(RSCs)transplantationoninterferon-gamma(IFN-γ)levelsinaratexperimentalglaucomamodel.·METHODS:Anexperimentalglaucomawasinducedbyargonlaserphotocoagulationoftheepiscleralveinsandlimbalplexusintherighteyeofrats.Immediatelyfollowingglaucomainduction,ratswereimmunizedwithCOP-1.RSCswereculturedandtransplantedintravitreallyintotheeyesofglaucomamodelanimals1weekpost-lasertreatment.Sixexperimentalgroupswereused:COP-1/RSC,PBS/RSC,COP-1/PBS,PBS/PBS,glaucomamodelgroup,andanormalcontrolgroup.TheconcentrationofIFN-γinaqueoushumor(AH)andserumwasmeasuredbyenzyme-linkedimmunosorbentassay(ELISA)ineachofthesixgroups.Retinalganglioncell(RGC)survivalwasassessedbyquantifyingapoptosisusingHoechststaining.·RESULTS:ConcentrationsofIFN-γinAHandserumofratsthathadundergoneglaucomainductionwerehigherthanthoseofnon-inducedcontrolrats.TheconcentrationsofIFN-γinAHandserumoftheCOP-1/RSCstreatedgroupweredeterminedtobe2371.9ng/Land710.9ng/L,respectively,whichweresignificantlylowerthanthoseintheothertreatedgroups(P<0.05).Infact,IFN-γlevelsinthedualtreatedgroupwerereducedtobackgroundlevels.TheCOP-1/RSCgrouphadlowernumberofapoptoticRGCsthantheotherthreeexperimentalgroups(P<0.05).·CONCLUSION:ThereducedlevelsofIFN-γinAHandserumoftheCOP-1/RSCgroupmayberelatedtosynergisticeffectsbetweenRSCstransplantationandCOP-1immunemodulation.ItislikelythatthelowerlevelsofIFN-γpreventedRGCsglaucomatousapoptosis.·

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