简介:Managingmicrotiapatientsisalwaysachallenge.Multidisciplinaryapproach,goodfamilysupport,wellestablisheddoctorepatientrelationshipandwellorganisedpatient-supportgroupsaretheessentialelementsforsuccess.Withtheadvancementofimplantablehearingdevices,moreoptionswillbeavailableforthemicrotiapatients.Otologistsplayaleadingroleinthewholemanagementprocess.Theynotonlyprovideproperguidancetothepatientsinchoosingthecorrectpathofthetreatment,butalsoplayakeyroleinorganisingandmaintainingacosteffectivemultidisciplinaryrehabilitationteamforthemicrotiapatients.
简介:Applicationofsurgicalendoscope,usedaloneorincombinationwiththesurgicalmicroscope,fortheoperativemanagementofearandtemporalboneconditionsmayallowimprovedaccessandclearanceofdisease.Preservationofnormalstructuresmayalsobeimproved.Astheuseofthistoolisincreasing,theneedforbetterunderstandingoftheanatomyoftheearisbecomingevident.Thisisparticularlysoforendoscopicsurgeryaimingatremovaloflesionsinvolvingtheinfra-cochlearcorridorand/orpetrousapex.Humantemporalbone-derivedlabyrinthcasts(molds),originallymadeforendolymphaticductandsacanalysiswhichgenuinelyrepresentthemembranouslabyrinthanditsadjacentsofttissues,weremorphometricallyanalyzedintermsoftheanatomicrelationsbetweenstructuresinandaroundtheinfra-cochlearcorridor.Thedistancebetweenthepetrouscarotidartery(PCA)andthebasalturnofthecochlea,thedistancebetweenPCAandinfra-cochlearvein(ICV)/cochlearaqueduct(CA),andthedistancebetweenthelowersurfaceofbasalcochlearturnandthepointwherethecarotidarteryandjugularvein(JV)meetclosetothejugularforamen,weremeasuredtobearound1.3mm,6mmand8mmrespectively,thusconstitutinganapproximate68mm2infra-cochlearcorridor.Thisanalysisandfurtherstudywithlargersamplesmightbehelpfulforoperationviathiscorridorledtothepetrousapexwherecholesterolgranuloma,cholesteatomaandotherlesionsarenotuncommon.
简介:目的构建含有人E2F2基因和绿色荧光蛋白基因(pEGFP)的腺病毒载体,为聋病的基因治疗奠定实验基础。方法根据已知的E2F2基因序列设计并合成相应的双链DNA,将其与酶切线性化的pDC315-EGFP载体片段连接,构建穿梭质粒pDC315-GFP-E2F2,并将其与腺病毒骨架质粒pBHGlox△E1,3Cre共转染HEK293细胞,同源重组产生重组腺病毒。对重组腺病毒进行扩增、纯化及滴度测定,用聚合酶链反应和测序方法验证穿梭质粒pDC315-GFP-E2F2穿梭质粒的构建;通过荧光显微镜和Westernblot(蛋白质印迹)方法,分别检测质粒pDC315-GFP-E2F2和重组腺病毒表达E2F2蛋白情况。结果经聚合酶链反应鉴定和测序分析,证实穿梭质粒pDC315-GFP-E2F2与设计一致;经荧光显微镜检测,分别由穿梭质粒pDC315-GFP-E2F2、重组腺病毒转染的HEK293细胞均可观察到GFP表达;经WesternBlot检测出在72kDa~95kDa处有条特征带,其大小和E2F2-GFP融合蛋白(~76kDa)相吻合;滴度测定为1×1011PFU/ml(PFU,plaqueformingunit,空斑形成单位)。结论成功构建了人E2F2基因重组腺病毒载体,并能在HEK293细胞中表达。