简介:目的:探讨糖尿病视网膜病变(diabeticretinopathy,DR)患者血清中生长停滞特异基因6(growtharrestspecificgene6,Gas6)、基质细胞衍生因子(stromalcell-derivedfactor-1,SDF-1)和SDF-1β表达的变化及临床意义。方法:DR患者113例分为增殖性组(n=45)和非增殖性组(n=68),同期选取未合并DR糖尿病患者作为糖尿病组(49例)和健康者42例,检测血糖、血脂和超敏C-反应蛋白(highlysensitiveC-reactiveprotein,hs-CRP)指标,利用实时荧光定量PCR技术检测血清中Gas6、SDF-1α和SDF-1β基因表达。结果:糖尿病组、非增殖性组和增殖性组患者稳态模型的胰岛素抵抗指数(homeostasismodelassessmentforinsulinresistance,HOMA-IR)、甘油三酯(triglycerides,TG)和hs-CRP均逐渐升高,差异均有统计学意义(F=39.672、81.625、99.872,均P〈0.05),增殖性组和非增殖性组患者低密度脂蛋白(low-densitylipoprotein,LDL-C)均高于糖尿病组和健康者,而高密度脂蛋白(highdensitylipoprotein,HDL-C)均低于糖尿病组和健康者,差异均有统计学意义(F=51.974、43.824,均P〈0.05);增殖性组、非增殖性组和糖尿病组患者血清Gas6mRNA表达量均高于健康者,增殖性组患者血清SDF-1αmRNA表达量均高于非增殖性组、糖尿病组和健康者,增殖性组和非增殖性组患者血清SDF-1βmRNA表达量均高于糖尿病组和健康者,且增殖性组患者高于非增殖组,差异均有统计学意义(F=15.381、21.589、38.942,P〈0.05);Pearson相关分析显示,DR患者血清Gas6mRNA表达量与TG、总胆固醇(totalcholesterol,TC)和LDL-C呈正相关(r=0.228、0.241、0.209,均P〈0.05),血清SDF-1αmRNA和SDF-1βmRNA表达量均与hs-CRP呈正相关(r=0.297、0.325,P〈0.05)。结论:DR患者血清中Gas6、SDF-1α和SDF-1β基因表达水平升高,可能与患者血脂代谢异常及炎性反应有关。
简介:目的:探讨非诺贝特联合23G微创玻璃体切割手术在糖尿病视网膜病变(DR)治疗中的临床应用价值。方法:选取2015-10/2017-11在我院接受治疗的DR患者102例102眼为研究对象,按照随机数字表法分为观察组和对照组,每组51例51眼,两组患者均行23G微创玻璃体切割术,术后第1d起,对照组给予常规降糖、降压及改善微循环治疗,观察组在对照组的治疗基础上联合非诺贝特治疗,均连续治疗3mo。对比两组患者术中及术后基本情况(手术用时、术中出血量、围手术期并发症发生率、住院时间)、术前和术后3mo血脂/[总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)/]及血清相关因子/〖脂蛋白相关磷脂酶A2(Lp-PLA2)、血管内皮生长因子(VEGF)/〗水平,随访至术后6mo,比较两组患者视网膜病变复发率。结果:两组患者手术用时、术中出血量、围手术期并发症发生率及住院时间比较,差异均统计学意义(P〉0.05)。术前两组患者TC、TG、LDL-C、HDL-C水平比较,差异均统计学意义(P〉0.05);术后3mo观察组患者TC、TG、LDL-C水平均低于对照组,HDL-C水平高于对照组,差异均有统计学意义(P〈0.05)。术前两组患者血清Lp-PLA2、VEGF水平比较,差异均统计学意义(P〉0.05);术后3mo观察组患者血清Lp-PLA2、VEGF水平均低于对照组,差异均有统计学意义(P〈0.05)。术前两组患者视功能生存质量问卷活动受限、感觉适应、心理、社交各项评分及总分比较,差异均统计学意义(P〉0.05);术后3mo观察组患者视功能生存质量问卷各项评分及总分均低于对照组,差异均有统计学意义(P〈0.05)。术后随访6mo,观察组复发,对照组复发率为5.9%(3/51),组间比较差异统计学意义(P〉0.05)。结论:非诺贝特联合23G微创玻璃�
简介:目的探讨微创玻璃体切割联合白内障超声乳化术治疗增生性糖尿病视网膜病变(PDR)的临床疗效。方法回顾性分析PDR患者16例(16只眼)均行微创玻璃体切割联合白内障超声乳化术,术中行全视网膜光凝。其中3只眼行硅油填充,6只眼行气体(C3F8)填充,术后3—6个月行硅油取出术,术后随访6个月。结果16只眼随访12个月,视网膜复位良好,12只眼矫正视力显著提高,4只眼因视神经萎缩视力无提高,3只眼后囊增生明显。结论微创玻璃体切割联合白内障超声乳化术是治疗PDR有效的方法,具有良好的临床前景。
简介:目的:通过测定糖尿病性白内障患者血清中糖代谢指标、胰岛素抵抗与房水和血清中炎症因子的水平,探讨其相关性。方法:随机选取我院2017-02/2018-01糖尿病性白内障患者69例(观察组)和白内障患者65例(对照组),检测两组患者血清中糖化血红蛋白(HbA1c)、空腹血糖(FPG)、空腹胰岛素(FINS)的水平,计算胰岛素抵抗指数(HOMA-IR);同时检测房水和血清中的胰岛素样生长因子-1(IGF-1)、白细胞介素-6(IL-6)含量,对HbA1c、HOMA-IR与房水和血清中IGF-1、IL-6含量进行相关性分析。结果:对照组血清中的FPG、HbA1c、HOMA-IR,以及房水和血清中IGF-1、IL-6含量显著低于观察组,差异有统计学意义(均P<0.05)。HbA1c与房水及血清中的IGF-1和IL-6均呈正相关(P<0.05)。HOMA-IR与房水及血清中的IGF-1和IL-6均呈正相关(P<0.05)。结论:糖尿病性白内障患者HbA1c、HOMA-IR与房水及血清中的IGF-1、IL-6含量具有相关性,通过对上述指标的测定可以辅助判断病情。
简介:目的:对影响糖尿病患者视网膜血管形态变化的相关因素进行分析。方法:选取2012-01/2016-09期间于本院就诊的2型糖尿病患者312例为研究对象。对患者进行、眼底摄片及相关实验室检查。以患者年龄、性别、病程、是否吸烟、饮酒,是否合并高血压、高血脂或糖尿病肾病等作为分组因素,比较不同组间患者出现视网膜血管形态变化的发生率,将有意义的因素再次引入Logistic回归方程,筛选出糖尿病患者视网膜血管形态变化的独立危险因素。结果:所选的312例2型糖尿病患者中,伴视网膜血管形态异常组169例,不伴视网膜血管形态异常组143例。单因素分析结果显示,年龄、病程、合并高血压、高血脂或糖尿病肾病与视网膜血管形态变化显著相关(P〈0.05),性别、是否吸烟、饮酒等与视网膜血管形态异常的发生无显著相关性(P〉0.05)。将发生视网膜血管形态异常作为因变量,上述具有统计学意义的分组因素作为自变量,经Logistic逐步回归分析结果显示,病程、患者合并高血压或糖尿病肾病是发生视网膜血管形态异常的独立危险因素(P〈0.05)。结论:病程增加、患者合并高血压或糖尿病肾病是糖尿病患者发生视网膜血管形态变化的独立危险因素。早期诊断与干预,采取措施控制血压稳定,减少肾脏损害可降低视网膜血管病变的发生率,同时减少糖尿病所引发的大血管病变,减少心脑血管不良事件的发生。
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:AIM:Tofindouttheoutcomeoflaserphotocoagulationinclinicallysignificantmacularedema(CSME)byopticalcoherencetomography(OCT).·METHODS:Itwasaprospective,non-controlled,caseseriesstudyenrolling81eyesof64patientswithCSMEbetweenAugust2008andJanuary2010.AllpatientsreceivedmodifiedgridphotocoagulationwithfrequencydoubledNd:YAGlaser.Eachpatientwasevaluatedintermsofbest-correctedvisualacuity(BCVA)andregressionorprogressionofmaculopathyafterlasertherapyat1,3and6months.Spearman’scorrelationtestwasusedtoshowthecorrelationbetweenBCVAandtotalmacularvolume(TMV).Analysisofvariance(ANOVA)wasusedtocompareamonggroupsandindependentt-testwasusedtocompareineachgroup.·RESULTS:ThereishighcorrelationbetweenBCVAandTMV(P≤0.001).BCVAimprovedin50.6%,remainedstaticin39.5%anddeterioratedin9.9%patientsafter6monthoftreatment.TheBaselineTMV(meanandSD)were9.26±1.83,10.4±2.38,11.5±3.05,8.89±0.75and9.47±1.98mm3fordifferentOCTpatterns,ST(spongelikethickening),CMO(cystoidmacularedema),SFD(subfovealdetachment),VMIA(Vitreomacularinterfaceabnormality)andaverageTMVrespectively(P=0.04).After6monthsoflasertreatment,themeanTMVdecreasedfrom9.47±1.98mm3to8.77±1.31mm3(P=0.01).InSTtherewassignificantdecreaseinTMV,P=0.01,Furtherwithinthesegroupsat6months,theyweresignificantlydifferent,P=0.01.·CONCLUSION:OCTshowedthedifferentmorphologicalvariantofCSMEwhiletheresponseoftreatmentisdifferent.TMVdecreasedthemostandhenceshowedtheimprovementinvisionafter6monthsoflasertreatment.IntheeraofAntivascularendothelialgrowthfactors(VEGFs),efficacyoflaserseemstobeinshadowbutitisstillfirstlineoftreatmentindevelopingnationlikeNepalwhereantiVEGFsmaynotbeeasilyavailableandaffordable.
简介:AIM:Toinvestigatethelevelsofserumsolubleintercellularadhesionmolecules-1(sICAM-1)andneutrophilicexpressionofCD18inpatientswithvariousstagesofdiabeticretinopathyandtodeterminetheirdifferentexpressionpatterninthedevelopmentofdiabeticretinopathy(DR).·METHODS:LevelsofserumsICAM-1andCD18onthesurfaceofneutrophileweremeasuredin41DRpatients,theywereclassifiedinthreesubgroupsaccordingtothestageofretinopathyasdeterminedbyfund’sophthalmoscopy;10controlsubjectswerealsostudied.sICAM-1weremeasuredbyenzyme-linkedimmunosorbentassayandCD18byflowcytometry.·RESULTS:TheneutrophilicCD18expressionandserumsICAM-1levelwereallsignificantlyelevatedinalldiabeticsubgroupscomparedtocontrolsubjects(P<0.01).ThedifferencesofCD18andsICAM-1amongthediabeticsubgroupsweresignificantinCD18butnotinsICAM-1.TheprogressionofretinopathywasassociatedwithanincreasebothinCD18andinsICAM-1levelsbysimplecorrelationanalysis(β=0.74,P<0.001;β=0.38,P<0.01,respectively).ButstepwisemultipleregressionanalysisrevealedthatonlyCD18wasindependentdeterminantofretinopathy(β=1.04,P<0.01).·CONCLUSION:OurresultsconfirmthecontributionofendothelialandneutrophilicactivationinthedevelopmentofDRasindicatedbyincreasedlevelsofCD18andsICAM-1.However,adirectimplicationofCD18andICAM-1intheprogressionofDRcanbesupportedonlyintheCD18butnotICAM-1.CD18andICAM-1mayplaydifferentroleinthedevelopmentofdiabeticretinopathy.
简介:3型Stargardt病(STGD3,MIM600110)是一种常染色体显性遗传的早发性黄斑营养不良性疾病,是一种单基因遗传性疾病。目前为止,已知的STGD3致病基因为极长链脂肪酸延长酶4基因(ELOVL4)。ELOVIA是位于内质网上的一种调节极长链饱和及多不饱和脂肪酸生物合成的限速缩合反应中不可或缺的膜蛋白。作为一种遗传性疾病,STGD3目前仍无有效治疗方法。然而,饮食补充极长链多不饱和脂肪酸可能是治疗STGD3的一种可行疗法。对STGD3基因及致病机制的研究可能将有助于发现STGD3的有效治疗方法及进一步了解其他遗传性视网膜变性疾病和更复杂的年龄相关性黄斑变性。
简介:AIM:Topresenttheoutcomeofmodifiedgridlaserphotocoagulation(GLP)indiffusediabeticmacularedema(DDME)ineyeswithoutextrafovealand/orvitreofovealtraction.METHODS:InclusioncriteriafortheretrospectivestudywereDDMEeyesofpatientswithtypeⅡdiabetesmellitusthathad≥4monthsoffollow-upfollowingGLP.Onlyoneeyeperpatientwasanalyzed.Using3-Dspectral-domainopticalcoherencetomography(3-DSDOCT),eyesthathadeitherextrafovealorvitreofovealtraction,orhadbeenpreviouslytreatedbyanintravitrealmedication(s)wereexcluded.TreatedDDMEeyesweredividedinto4groups:A)'Classic'DDMEthatinvolvedthecentralmacula;B)edemadidnotinvolvethemacularcenter;C)eyesassociatedwithcentralepiretinalmembrane(ERM);D)DDMEthatwasassociatedwithmacularcapillarydropout≥2disc-diameter(DD).RESULTS:GLPoutcomein35DDMEeyesafter4-24(mean,13.1±6.9)monthswasasfollows:GroupA)18eyeswith'classic'DDME.Followingoneor2(mean,1.2)GLPtreatments,best-correctedvisualacuity(BCVA)improvedby1-2Snellenlinesin44.4%(8/18)ofeyes,andworsenedby1linein11.1%(2/18).Centralmacularthickness(CMT)improvedby7%-49%(mean,26.6%)in77.8%(14/18)ofeyes.CausesofCMTworsening(n=4)werecommonlyexplainable,predominantly(n=3)associatedwithemergenceofextrafovealtraction,5-9monthspost-GLP.GroupB)GLP(s)inDDMEthatdidnotinvolvethemacularcenter(n=6)resultedinimprovedBCVAby1-2linesin2eyes.However,thecentralmaculabecameinvolvedintheedemaprocessaftertheGLPin3(50%)eyes,associatedwithanemergenceofextrafovealtractioninoneoftheseeyes4monthsfollowingtheGLP.GroupC)GLPfailedinall5eyesassociatedwithcentralERM.GroupD)GLPwasofpartialbenefitin2of6treatedeyeswithmacularcapillarydropout≥2DD.CONCLUSION:EyeswithDDMEthatinvolvedthemacularcenterwerefoundtoachievefavourableoutcomesafterGLP(s)duringmid-termfollow-up,unlesscomplicatedpre-GLPorpost-GLPbyvltreoretinalinterfaceabnormalities,oftenextrafovealtra
简介:目的:探讨糖尿病患者黄斑中心凹下脉络膜厚度(SFCT)与脉络膜血流动力学指数及糖化血红蛋白之间的关系。方法:选择在我院眼科及内分泌科住院治疗的2型糖尿病患者78例156眼作为研究对象。其中男39例,女39例,平均(59.8±6.2)岁。根据ETDRS糖尿病视网膜病变分级方法,将患者分为无视网膜病变组、轻中度NPDR组、重度NPDR组、PDR组。采用EDI-OCT与超声多普勒对四组患者进行脉络膜厚度测量与脉络膜血流动力学指数测量。并记录所有患者的血糖化血红蛋白含量。采用多元线性回归分析SFCT与血流动力学指数与糖化血红蛋白的相关性。结果:NDR患者组舒张末期血流速度(EDV)明显高于其它患者组,SFCT较其它各组偏薄,差异有统计学意义。四组患者收缩期峰值血流速度(PSV)无统计学差异;重度NPDR组血管阻力指数(RI)高于NDR组及轻中度NPDR组;PDR组RI进一步增高,差异有统计学意义。SFCT与糖化血红蛋白有显著正相关性(b=0.540,P〈0.001);SFCT与DR分级(P=0.341)、PSV(P=0.770)、EDV(P=0.131)及RI(P=0.084)无显著相关性。结论:糖尿病患者SFCT与血流动力学各指数无相关性。糖化血红蛋白是糖尿病患者SFCT的影响因素之一。
简介:泪道阻塞是眼科的常见病,有先天性和后天性两大类,易发展为急,慢性泪囊炎,以手术治疗为主,目的是重建或恢复泪液的引流通路,传统手术方面报道较多的是泪囊鼻腔吻合术(EXT-DCR)虽然成功率可达85%,但在颜面部残留永久性疤痕,影响美容,非手术方法主要有:探通,置线,置管等,但只是简单的解决问题,而且易致周围组织刺激,更容易形成粘连和疤痕使管腔再度阻塞。目前,虽然报道使用激光泪道成形术收到较好的效果,泪道能够冲洗通畅,但部分仍有溢泪症状。近年来,随着内窥镜技术不断成熟,既微创又美观的手术要求越来越高,因此,诸如鼻内窥镜下泪囊鼻腔吻合术(IECR)得以开展和创新。另外高分子材料及其它医疗器械的不断更新和完善,其治疗手段有了长足的进步。