简介:目的:检测白塞氏病(BD)患者和正常人群血浆中微小核糖核酸(microRNA,miRNA)的差异表达谱,探讨miRNA在BD发病中的作用,寻找与BD相关的血浆生物标记物。方法:收集15例活动期BD患者和15例正常人的抗凝静脉血,离心获得血浆,提取总RNA,经miRNA标记、miRNA阵列杂交、miRNA阵列扫描和分析获得BD患者异常表达的miRNA谱。通过miRTarBase(靶基因数据库)检索差异性表达的miRNA已经过验证的靶基因,并选取与免疫学相关的差异性表达的miRNA进行Realtime-PCR验证。结果:活动期BD患者血浆中hsa-miR-34c-5p、hsa-miR-144-3p、hsa-miR-483-3p较正常人表达上调,hsa-miR-301a-3p、hsa-miR-224-5p、hsa-miR-454-3p、hsa-miR-17-5p、hsa-miR-199a-5p较正常人表达下调。结论:miRNA的差异性在BD的发生发展过程发挥重要作用,异常表达的miRNA可能通过Notch1和SMAD4信号通路促进BD发病。
简介:AIM:Todescribethedesignandpreliminaryresultsofthehospitalbasedepidemiologicalstudyfordiabeticretinopathy(HBESDR),anongoingepidemiologicalstudytoestimatetheprevalenceofdiabeticretinopathy(DR)andtoelucidatetheclinical,anthropometric,biochemicalandanyotherriskfactorsassociatedwithdiabeticretinopathy.METHODS:Totally2000diabeteswillberecruitedfromtheDiabeteseyeclinicintheFirstAffiliatedHospitalofChinaMedicalUniversity.AllsubjectsunderwentbloodsugarestimationandOralGlucoseToleranceTesttodiagnosediabetes.Alldiabeteswouldundergocompletequestionnaire,acomprehensiveeyeexamination.Bloodandurinewouldbecollectedforbiochemicalinvestigations.AllfundusphotographsforanyDRwillbegraded.Participantswhoneedtreatmentwillbesenttotheophthalmicclinicandfollow-upintervalprogramforallsubjectswillbesuggested.Acomputerizeddatabaseiscreatedfortherecords.RESULTS:Todate,1174diabeteshavebeenrecruited,therewere350(29.81%)DRinalldiabetes,mostofthemwerewithmildnon-proliferativediabeticretinopathy(NPDR)(139,39.71%);71(20.29%)moderateNPDR,66(18.86%)severeNPDR,74(21.14%)proliferativediabeticretinopathy(PDR).Females,longerdurationofdiabetes,familyhistoryofdiabetesandhypertensionhadastatisticallysignificantincreaseinriskofanyDR.CONCLUSION:ThestudyisexpectedtoprovideanestimateoftheoverallprevalenceofDRandtheprevalencewithdifferentdurationofdiabetesandalsoabetterunderstandingoftheriskfactorsassociatedwithDR.
简介:目的探讨白内障超声乳化摘除及人工晶体植入联合房角分离术治疗闭角型青光眼合并白内障的临床效果方法回顾性分析2009年10月至2011年6月我院收治的闭角型青光眼合并白内障共112例(120眼),应用白内障超声乳化摘除及人工晶体植入联合房角分离术,对房角关闭区域用粘弹剂和手指按压进行钝性分离。观察手术前后的房角及前房变化、视力、眼压及并发症情况,随访6月。结果均经统计学处理。结果120眼手术顺利,术后追踪6月,全部患者术后视力提高,房角开放,中央前房加深,眼压控制良好,手术前后比较差异具有统计学意义。结论超声乳化白内障摘除联合房角分离术是治疗闭角型青光眼合并白内障的有效方法之一,但具体适应证尚待进一步探讨。
简介:AIM:Tostudytheimpactofscleralflapposition,underwhichtheposteriorchamberintraocularlenses(PC-IOL)weresulcus-fixedbytrans-scleralsuture,oncorneaastigmatism.METHODS:Twenty-sixaphakicorcataracteyeswerecomprisedinthisprospectivenoncomparativecaseseriesstudy.Eleveneyeshadtraumaticcataractremovedwithoutsufficientcapsularsupport,3hadblunttraumawithsubluxatedtraumaticcataract,8hadundergonevitreoretinalsurgeryand4hadcongenitalcataractremoved.Theaverageagewas54years(range21-74years),with17menand7women.ThefoldablePC-IOLwasfixedinsulcusbytrans-scleralsuture.TheincisionforIOLimplantationwasmade1mmposteriortolimbusalongthesteepestmeridianofcornea,whilescleralflapstoburytheknotsoftrans-scleralsutureweremadealongtheflattestmeridian.Allthesurgerieswereperformedbyasingledoctor(MaL),andthefollowupwasatleast13months(range13-28months).Thepreoperative,3monthsand1yearpostoperativecornealcurvaturealongthesteepestandflattestcorneameridianandoverallcorneaastigmatismwerecompared.RESULTS:Thecurvaturealongthesteepestmeridianchangedfrom44.25±2.22Dpreoperativelyto44.08±2.16Dat3monthspostoperatively,and43.65±5.23Dat1yearpostoperatively(P>0.05);thecurvaturealongtheflattestmeridianchangedfrom41.24±2.21Dpreoperativelyto43.15±3.94Dat3monthspostoperatively,and42.85±5.17Dat1yearpostoperatively(P<0.05);andthesurgeryinducedastigmatism(SIA)oncorneawascalculatedbyvectoranalysis,whichwas2.42±2.13Dat3monthspostoperatively,and2.18±3.42Dat1yearpostoperatively,thedifferencewasstatisticallysignificant(P<0.05).CONCLUSION:Thescleralflapmadealongtheflattestmeridian,underwhichtheposteriorchamberintraocularlenses(PCIOL)weresulcus-fixedbytrans-scleralsuture,cansteepenthecorneainvaryingdegrees,thusreducingpreexistingcornealastigmatism.