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:病例介绍病例1:患者,男,47岁。因右眼突然视力下降伴下方黑幕遮挡4天入院。原双眼有高度近视-14.00DS,入院时全身体检(-)。视力:右眼无光感,陈旧性视网膜脱离;左眼0.05(矫正)。左眼前节(-),眼底见9:30~4:00视网膜脱离,隆起度较高,累及黄斑区,颞上方约1:00时钟见一2PD大小马蹄孔。入院后第二天局部麻醉下行左眼冷凝加外加压加环扎术,外加压块、环扎带均位于赤道区,无放液并发症,手术顺利。术后第一天查眼底见脱离的
简介:·AIM:Toobtainwideningofapotentiallyoccludableangle,inaccordingtoKanski’sindications,throughpreventiveNd:Yaglaseriridotomy.Theobservationalstudywasperformedbyusinggonioscopyfortheselectionandfollow-upof1165treatedeyesandexploitingShaffer-Etiennegonioscopicclassificationasaquality/quantitytestoftheanglerecession.·METHODS:BetweenSeptember2000andJuly2012,586patientswereselectedattheOutpatients’OphthalmologicalClinicofthePoliclinicoUmbertoIofRomeinordertoundergoNd:Yaglaseriridotomy.AGoldmanntypecontactlens,Q-switchedmode,2-3defocus,and7-9mJintensitywith2-3impulsedischargeswereusedforsurgery.·RESULTS:Fromasearlyasthefirstweek,awhole360°anglewideningwereevidentinthepatients,thusshowingthesuccessofNd:Yaglaseriridotomyinsolvingrelativepupilblock.Theangleremainednarrowby270°in14eyesonly,despiterepetitionsoffurthertreatmentwithlaseriridotomyinadifferentpartoftheiris,twicein10eyesandthreetimesin4eyes.·CONCLUSION:Nd:YaglaseriridotomyrevealeditselfasbeingasafeandeffectivetreatmentinwideningthosecriticalShaffer-Etiennegrade1and2potentiallyoccludableangles.
简介:AIM:ToInvestigatethegeneticfindingsandphenotypiccharacteristicsofaChinesefamilywithNorriedisease(ND).METHODS:MoleculargeneticanalysisandclinicalexaminationswereperformedonaChinesefamilywithND.MutationsintheNorriediseasepseudoglioma(NDP)geneweredetectedbydirectsequencing.Haplotypeswereconstructedandcomparedwiththephenotypesinthefamily.Evolutionarycomparisonsandmutantopenreadingframe(ORF)predictionwerealsoundertaken.RESULTS:TwofamilymemberswithocularmanifestationswerediagnosedwithND.Nosignsofsensorineuralhearinglosswereobservedineitherpatient,whileoneofthemshowedsignsofmildmentalretardation.AnovelheterozygousmutationintheNDPgene,c.-12delAAT,wasdetectedinbothpatients.ThemutationandthemutationbearinghapiotypecosegregatedwiththeNDphenotypeinmalesandwastransmittedfromtheirmothersand/orgrandmothers(Ⅱ:2).ThemalewithoutNDdidnotharborthemutation.Themutationoccurredatthehighlyconservednucleotides.DRFfinderpredictedthatthemutationwouldleadtotheproductionofatruncatedproteinthatlacksthefirst11N-terminalaminoacids.CONCLUSION:Anovelmutation,c.-12delAATintheNDPgene,wasidentifiedinaChinesefamilywithND.ThismutationcausedNDwithoutobvioussensorineuralhearingloss.Mentaldisorderwasfoundinonebutnottheotherpatients.Theclinicalheterogeneityinthefamilyindicatedthatothergeneticvariantsandepigeneticfactorsmayalsoplayaroleinthediseasepresentation.
简介:例1,男52岁.因咽部不适、头痛睡眠不好2年,在内地医疗单位诊断为阻塞性睡眠呼吸暂停低通气综合征(obstructvesleepapneahypopneasyndrome,OSAHS).在全身麻醉下行悬壅垂腭咽成形术(uvulopalatopharyngoplasty,UPPP),术后20d返回高原.1wk后出现咽痛、咽干、吞咽困难,夜间症状加重.检查:咽部充血,咽腔宽大,黏膜干燥无光泽,咽后壁较多黄白色干痂贴附.
简介:AIM:ToinvestigatetheregulationofEaf2proteininmouselenscellsapoptosisinducedbyultraviolet(UV)radiation.METHODS:AneyeofEaf2geneknockoutmiceornormalcontrolmicewasexposedtoUVradiation,andtheotheronewasnon-exposed.AlloflenseswereanalyzedbyTUNELandcaspase3activityassaystodeterminethedifferenceoftheapoptosisinducedbyUVradiation.Inaddition,exposedandnon-exposedlenseswereanalyzedbyquantifiedp53expressionandreal-timereversetranscription-polymerasechainreaction(RT-PCR)ofBax,Bid,Apaf-1,PumaandNoxa,tocompareEaf2geneknockoutmiceandnormalcontrolmice.RESULTS:UVradiationcausedapoptosisoflenscellsinnormalcontrolmiceandEaf2knockoutmice.Activityofcaspase3wassignificantlyhigherinnormalcontrolmicethanEaf2knockoutmice.Expressionofp53proteinwassignificantlyhigherinlensesexposedtoUVradiationthannonexposedlenses,butwassimilarbetweenEaf2geneknockoutmiceandnormalcontrolmiceinthesameUVcondition.AfterexposingtoUVradiation,theanalysisofreal-timeRT-PCRdemonstratedthatmRNAlevelsofPumaandNoxaweresignificantlyhigherinlensesofnormalcontrolmicethanEaf2geneknockoutmice,andthatmRNAlevelsofBax,BidandApaf-1werenotsignificantlydifferentbetweengeneknockoutmiceandnormalcontrolmice.CONCLUSION:Eaf2increaseslenscellsapoptosisinducedbyultravioletradiation.AndEaf2up-regulatesexpressionofthePumaandtheNoxatoactonlenscellsapoptosisafterUVradiation.
简介:AIM:Toinvestigatewhethertheresponseofacentralhexagonalelementcorrespondingtothemacularareainconventionalmultifocalelectroretinography(mfERG)testswasthesameasthatofexperimentalmfERGusingsinglecentralhexagonalelementstimulation.METHODS:Prospective,observationalstudy.Thirtyhealthysubjectswereincludedinthisstudy.mfERGrecordingswereperformedaccordingtotwoprotocols:stimuluswith37hexagonalelements(protocol1),andstimuluswithasinglecentralelementcreatedbydeactivatingtheother36hexagonalelements(protocol2).Wecompareddifferencesbetweenring1parametersineachprotocol.RESULTS:Inprotocol1,thefirstpositivecomponent(P1)implicittimeandP1amplitudewere37.8±1.8msand6.3±2.7μV.Aftersingleelementstimulation(protocol2),doublepositivewavesappeared.TheimplicittimeandamplitudeofP1were40.7±2.4ms(P<0.001)and9.1±3.3μV(P=0.001),respectively.Theimplicittimeandamplitudeofthesecondpositivecomponent(P2)were68.0±4.5ms(P<0.001,comparedwithP1inprotocol1)and12.3±4.7μV(P<0.001,comparedwithP1inprotocol1),respectively.TheamplitudeofP2inprotocol2wasabouttwotimeshigherthanthatofP1inprotocol1.CONCLUSION:mfERGresponsesofacentralhexagonalelementinasingleelementstimulationprotocolaredifferentfromthoseofmultipleelementstimulation.Thepositivewaveismoreenhancedcomparedtothatoftheconventionalprotocolanditelongatedintotwowavelets.
简介:目的:探讨白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术+前部玻璃体切割术,术后3mo矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术的临床疗效。方法:对2014-07/2016-12我院白内障科就诊的34例34眼白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术+前部玻璃体切割术,3mo后矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术,分别观察患者术后1wk,1、3mo裸眼视力、最佳矫正视力、眼压、角膜散光度、术后并发症情况。结果:随着术后恢复时间的延长,患者各期的裸眼视力和最佳矫正视力均较术前有明显提高。术后3mo最佳矫正视力0.1~〈0.3者1眼,0.3~〈0.5者8眼,0.5~〈0.7者16眼,〉0.7者9眼,达到或接近术前的最佳矫正视力。术后1wk,1、3mo眼压处于正常范围内。手术并没有明显增加角膜的散光度。结论:对于白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术+前部玻璃体切割术,3mo后矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术能有效确切地提高视力,稳定眼压,术后并发症少,是较为安全可靠的治疗方式。
简介:AIM:ToidentifythefunctionofST2andexploretheroleofIL-33/ST2signalinginregulatingthepro-allergiccytokineproductioninhumancornealepithelialcells(HCECs).METHODS:HumancornealtissuesandculturedprimaryHCECsweretreatedwithIL-33indifferentconcentrationswithoutorwithdifferentinhibitorstoevaluatetheexpression,locationandsignalingpathwaysofST2inregulatingproductionofpro-allergiccytokineandchemokine.TheexpressionofmRNAwasdeterminedbyreversetranscriptionandrealtimePCR,andproteinproductionwasmeasuredbyenzyme-linkedimmunosorbentassay(ELISA),immunohistochemicalandimmunofluorescentstaining.ST2proteinwasdetectedindonorcornealepithelium,andST2signalwasenhancedbyexposuretoIL-33.·RESULTS:IL-33significantlystimulatedproductionofpro-allergiccytokinesthymicstromallymphopoietin(TSLP)andchemokine(CCL2,CCL20,CCL22)inHCECsatbothmRNAandproteinlevels.Thesestimulatedproductionsofpro-allergicmediatorsbyIL-33wereblockedbyST2antibodyorsolubleST2protein(P<0.05).Interestingly,theIκB-αinhibitorBAY11-7082orNF-κBactivationinhibitorquinazolineblockedNF-κBp65proteinnucleartranslocation,andalsosuppressedtheproductionsofthesepro-allergiccytokinesandchemokineinducedbyIL-33.CONCLUSION:ThesefindingsdemonstratethatIL-33/ST2signalingplaysanimportantroleinregulatingIL-33inducedpro-allergicresponses.IL-33andST2couldbecomenovelmoleculartargetsfortheinterventionofallergicdiseasesinocularsurface.
简介:目的:观察MoriaM2型90与110μm角膜刀制作角膜瓣在准分子激光角膜原位磨镶术(laserinsitukeratomileusis,LASIK)的疗效和并发症,探讨MoriaM2型90刀头在LASIK中应用的有效性、安全性和优点。方法:选取通过术前检查并自愿行LASIK手术的患者105例202眼,按随机数字表分成两组,使用MoriaM2型90刀头LASIK患者51例98眼,110刀头LASIK患者54例104眼做对照,术后即使用光学相干断层扫描仪(OCT)检测两组角膜瓣厚度,观察两组术后1d;1wk;1,3mo裸眼视力、矫正视力和角膜瓣形态、对合情况、并发症。结果:90刀头组术后角膜瓣厚度为118.3±15.2μm,110刀头组术后角膜瓣厚度为130.5±17.1μm,有显著性差异。90刀头组均未发现层间点状金属碎屑,110刀头组有层间点状金属碎屑个例(12例),有显著性差异。两组角膜瓣形态、对合情况、术后反应、术后裸眼视力相当。结论:应用90刀头LASIK的疗效及并发症和110刀头LASIK相当,但90刀头保留角膜基质床相对较厚,可矫治的屈光度更大,术后层间点状金属碎屑并发症更少,具有更好的安全性和更宽的适应范围。
简介:上海交通大学医学院(原上海第二医科大学)附属仁济医院是一所历史悠久的三级甲等教学医院(建院于1844年),耳鼻咽喉科和我国大多数的兄弟医院一样,多年来一直从事如急慢性中耳炎、急慢性咽、喉炎、扁桃体炎、耳鸣、耳聋等临床常见病、多发病的医疗、教学及研究工作,近年来由于疾病谱的变化我们除常规的传统工作之外,每年对头颈肿瘤患者的诊治也逐渐增多。2005年仅甲状腺肿瘤的外科手术治疗达500多例,近10余年总数超过5000例,约占本科手术总量的45%。作为以传统耳鼻咽喉科为主的三级甲等医院中的一员,从开始每年10余例甲状腺肿瘤手术到目前每年500余例,并进行涎腺肿瘤外科、头颈部先天性肿瘤、头颈部外伤治疗,开展了颈胸联合、颅鼻联合手术等工作,逐渐发展成为具初步规模的耳鼻咽喉头颈外科,我们走过了10余年的历程,有了些感受,现就有关耳鼻咽喉头颈外科医师进行甲状腺肿瘤外科治疗的若干体会与从事相关工作的同道们进行交流、切磋。
简介:研究内源性大麻素N-花生四氢酸氨基乙醇(anan-damide,AEA)对体外培养的牛眼小梁细胞细胞骨架及PGE2表达的影响。方法:对牛眼小梁细胞进行原代及传代培养,并行鉴定。对传3代的牛眼小梁细胞分别施加AEA浓度分别为0,0.1,1.0,10/μmol/L的无血清培养液,作用24h后提取细胞上清液,并将细胞置于倒置显微镜下摄像,计算机图像分析系统计算细胞面积。用ELISA法检测PGE2浓度的变化。结果:AEA可以产生明显的细胞舒张效应,呈浓度依赖性。而且在一定范围内可以成剂量依赖性的促进PGE2的表达。与对照组均有显著性差异(P〈0.05)。结论:AEA可引起小梁细胞的舒张和促进PGE2的释放。
简介:目的:探讨眼附属器B细胞非霍杰金淋巴瘤(B—cellnon-Hodgkinlymphoma,NHL)中Skp2,p27和PTEN的表达。方法:收集1995年到2011年青岛大学附属医院眼科石蜡包埋标本,用免疫组化法分别检测眼附属器B细胞NHL(n=30)标本中Skp2,p27和PTEN的表达,以眼部反应性淋巴组织增生(n=10)作为对照组。以患者的年龄、性别、发病部位,病理类型作为眼附属器B细胞NHL的的分类标准。结果:Skp2,p27和PTEN的表达与患者的年龄、性别、发病部位无关,而与病例类型有关。眼附属器B细胞NHLSkp2表达率与眼部反应性淋巴组织增生相比显著增高。p27,PTEN表达率与反应性淋巴组织增生相比显著降低。随眼附属器B细胞NHL病理分级的提高,Skp2的表达显著增高,p27和PTEN的表达显著降低。在黏膜相关淋巴组织结(mucosa—associatedlymphoidtissue,MALT)外边缘区B细胞淋巴瘤(diffuselargeB—celllymphoma,DLBCL)中,Skp2分别与p27,VFEN成负相关,p27和PTEN成正相关。结论:Skp2的表达升高,p27,PTEN蛋白的缺失以及可能与眼附属器B细胞NHL的发生有关;其中在MALT外边缘区DLBCL中,三种蛋白存在相关性。联合三种蛋白的检测眼附属器B细胞NHL的不同病理类型有重要意义。
简介:AIM:Toinvestigatethetreatmentstatusandprognosisofspace-occupyinglacrimalglandlesionsatonetertiaryeyecenterinChina.·METHODS:Aretrospectiveclinicalstudywasperformedon95patientswithspace-occupyinglesionsofthelacrimalglandsurgicallytreatedattheEye&ENTHospitalofFudanUniversityfrom2003to2007.Thereviewedclinicaldataincludedage,gender,sideofthelesion,durationofsignsandsymptoms,histopathologicaldiagnosis,treatmentmodality,recurrence(local,regional,anddistantmetastasis)andsurvival.·RESULTS:Ofthe95cases(99eyes),pleomorphicadenomaswerethemostcommonlesions(43cases),followedbylymphoiddisorders(14),inflammatorypseudotumors(11),carcinomaex-pleomorphicadenomas(11),andadenoidcysticcarcinomas(ACC,6).Therewere8patientswithrelapsedpleomorphicadenomas.Fiveofthese8caseshadmalignantpathologicalchanges.AllpatientswithACChadmetastasisandthreeofthemdiedduringtheirfollow-up.·CONCLUSION:Ourstudyindicatedthatthemostcommonlacrimalglandlesionswerepleomorphicadenomas.Multiplerecurrenceandsurgicalproceduresmayincreasetheriskoftumorprogression.ACChadahighincidenceoftumormetastasisandapoorprognosis.
简介:AIM:Toassesstheawarenessofeyecomplicationsandtheprevalenceofretinopathy,inthefirstvisittoeyeclinic,amongtype2diabeticpatientsattendingatertiarymedicalcentreinKualaLumpur,Malaysia.METHODS:Aninvestigator-administeredquestionnairewasgivento137patientswithdiabetesundergoingfirsttimeeyescreeningintheeyeclinic.Thiswasfollowedbyadetailedfundusexaminationbyaseniorophthalmologisttoassessforpresenceofretinopathy.RESULTS:Almost86%ofrespondentswereawareofdiabeticeyecomplications,especiallyinpatientswhohadachievedtertiaryeducationallevel(96.3%).Themajorityofthepatients(78.8%)werereferredbytheirphysiciansandonly20.4%cameontheirowninitiative.Manyofthepatients(43.8%)didnotknowhowfrequenttheyshouldgoforaneyecheck-upand72.3%didnotknowwhattreatmentswereavailable.Lackofunderstandingondiabeticeyediseases(68.6%)wasthemainbarrierformostpatientsfornotcomingforeyescreeningearlier.Despiteahighlevelofawareness,only21.9%hadrecordedHbA1clevelof<6.5%while31.4%wereundertheerroneousassumptionofhavingagoodbloodsugarcontrol.Atotalof29.2%haddiabeticretinopathyintheirfirstvisiteyetesting.CONCLUSION:Inthepresentstudy,29.2%oftype2diabeticpatientshadretinopathyintheirfirsttimeeyetesting.Althoughtheawarenessofdiabeticeyecomplicationswashighamongfirsttimeeyescreeningpatients,theappropriateeyecare-seekingbehaviorwascomparativelylessandshouldberectifiedtopreventtheriseofthissightthreateningeyedisease.
简介:目的观察1,25(OH)2D3对高糖诱导牛视网膜血管内皮细胞(BRECs)中血管内皮生长因子(VEGF)的表达水平变化及对细胞凋亡水平的影响。方法将分离培养的BRECs分为三组,分别为正常糖组、高糖组和高糖处理组。正常对照组细胞培养液含5mmol/L葡萄糖,高糖组细胞培养液含30mmol/L葡萄糖,高糖处理组细胞培养液含30mmol/L葡萄糖和50nM,1,25(OH)2D3。培养48h后收集细胞蛋白。蛋白免疫印迹法检测细胞VEGF及细胞凋亡相关蛋白Bax和Bcl-2表达水平;PI/Hoechst双染色法检测细胞凋亡。结果相比于正常糖组,高糖组中VEFG水平和Bax/Bcl-2比值显著增加;而在高糖处理组中表达水平远远低于高糖组,差异均有统计学意义(P〈0.05)。高糖的细胞凋亡水平高于正常糖组,而经过1,25(OH)2D3处理后,其细胞凋亡水平则有所下降,差异均有统计学意义(P〈0.05)。结论1,25(OH)2D3可以抑制高糖诱导BRECs中VEGF表达增加及细胞凋亡。