简介:瞄准:为了孤立并且识别差别,由二维的电气泳动(2-DE)和帮助矩阵的激光解吸附作用/电离time-of-flight团分光术(MALDI-TOF-MS)表示了在癌症和胃的癌症的正常纸巾之间的蛋白质。方法:胃的癌症纸巾和配对的正常纸巾的可溶的部分蛋白质被2-DE分开。差别表示了蛋白质被MALDI-TOF-MS和数据库搜索选择并且识别。结果:有高分辨率和重制度的2-DE侧面被获得。23个蛋白质点从染色胶化的裂片被切除并且由胰岛素,十五个蛋白质点成功地在被识别在胶化消化了。在识别蛋白质之中,有十过去表示并且在胃癌症纸巾的五下面表示的蛋白质与正常纸巾相比。结论:在这研究,人的胃的癌症织物和配对的正常织物的解决得好的、可再现的2-DE模式被建立并且优化并且某些表示差别的蛋白质被识别。2-DE和MS的联合使用提供一条有效途径为潜在的肿瘤标记屏蔽。
简介:AIM:Tostudytheearlydiagnosisandmanagementoffamilialadenomatouspolyposis(FAP).METHODS:EightpedigreesofFAPwerecollectedandtheirpedigreetreeswereprotracted.ClinicalcharacteristicsandtreatmentoutcomesofFAPpatientsinthesekindredswereanalysed.RESULTS:Atotalof157memberswereinvestigatedineightkindredsand25patientswithFAPwerediagnosed.Theratioofmalepatientsandfemalepatientswas16:9andtheaverageageatonsetwas38years.Amongthem,sixpatientsdiedofcancerwithamortalityrateof28%,and36%(9/25)FAPpatientswerediagnosedassynchronouscolorectalcanceronthebasisofFAP.Aprobandwasdiagnosedassynchronouscolorectalcancerwithlivermetastasisanddied11molaterafterpartialcolectomyandhepaticmetastaticlesionbiopsy.Theothersevenprobandsreceivedtotalabdominalcolectomyandrectalmucosectomywithilealpouch-analanastomosis(IPAA),andoneofthemwasdiagnosedassynchronouscoloncanceronthebasisofFAPandwasstillaliveafter7.5yearsfollow-up.AmongtheothersevenpatientswithsynchronouscolorectalcanceronthebasisofFAPunderwenttotalabdominalcolectomywithileorectalanastomosis(IRA),oneunderwenttotalremnantrectumresectionandileostomyforrecurrentcarcinomaintheretainedrectum2.5yearslateraftertheIRAandwasstillalive,whiletheothersalldiedofrecurrencewithamediansurvivaltimeof4.6years.Throughclosefollow-upandtermlyendoscopicsurveillance,threeFAPpatientsweredetectedbeforepresentingsymptomsattheageof18,20and23years,respectively.ProphylacticIPAAwasperformedandresultsweresatisfactoryafterthepatientswerefollowed-upfor6,1,and8years,respectively.CONCLUSION:Pedigreeinvestigation,closefollow-upandtermlyendoscopicsurveillanceareveryimportantforearlydetectionofFARProphylacticIPAAcangivesatisfactoryresultstoFAPpatients.
简介:瞄准:由transfecting观察肝炎B复制和表示的抑制基于向量的小干扰RNA(siRNA)pGenesil-HBVX指向HBVX基因区域进HepG2.2.15房间。方法:pGenesil-HBVX被构造并且transfected进经由lipofection的HepG2.2.15房间。HBV抗原分泌物被决定在由解决时间的immunofluorometric试金(TRFIA)的transfection以后的24,48,和72h。HBV复制被荧光检验细胞质的病毒的蛋白质的量的PCR,和表示被免疫组织化学决定。结果:进上层清液的HBsAg和HBeAg的分泌物被发现被28.5%和32.2%禁止(P<0.01),并且在38.67%(P<0.05)并且42.86%(P<0.01)在在pGenesil-HBVXtransfection以后的48h和72h分别地。为细胞质的HBsAg染色的Immunohistochemical在HepG2.2.15房间显示出类似的衰落在transfection以后的48h。在文化上层清液以内的HBV染色体的数字显著地也被减少48h和由荧光PCR确定了的72hpost-transfection(P<0.05)。结论:在HepG2.2.15房间,HBV复制和表示被指向编码区域的HBVX的基于向量的siRNApGenesil-HBVX禁止。
简介:AIMToprovideanupdatedassessmentofthesafetyandefficacyofenhancedrecoveryaftersurgery(ERAS)protocolsinelectivegastriccancer(GC)surgery.METHODSPubMed,Medline,EMBASE,WorldHealthOrganizationInternationalTrialRegister,andCochraneLibraryweresearcheduptoJune2017forallavailablerandomizedcontrolledtrials(RCTs)comparingERASprotocolsandstandardcare(SC)inGCsurgery.ThirteenRCTs,withatotalof1092participants,wereanalyzedinthisstudy,ofwhom545underwentERASprotocolsand547receivedSCtreatment.RESULTSNosignificantdifferencewasobservedbetweenERASandcontrolgroupsregardingtotalcomplications(P=0.88),mortality(P=0.50)andreoperation(P=0.49).Theincidenceofpulmonaryinfectionwassignificantlyreduced(P=0.03)followinggastrectomy.However,thereadmissionrateafterGCsurgerynearlytripledunderERAS(P=0.009).ERASprotocolssignificantlydecreasedthelengthofpostoperativehospitalstay(P<0.00001)andmedicalcosts(P<0.00001),andacceleratedbowelfunctionrecovery,asmeasuredbyearliertimetothefirstflatus(P=0.0004)andthefirstdefecation(P<0.0001).Moreover,ERASprotocolswereassociatedwithalowerlevelofseruminflammatoryresponse,higherserumalbumin,andsuperiorshorttermqualityoflife(QOL).CONCLUSIONCollectively,ERASresultsinacceleratedconvalescence,reductionofsurgicalstressandmedicalcosts,improvednutritionalstatus,andbetterQOLforGCpatients.However,high-qualitymulticenterRCTswithlargesamplesandlong-termfollow-upareneededtomorepreciselyevaluateERASinradicalgastrectomy.
简介:INTRODUCTIONInterventiontherapyhasbecomeoneofthemaintherapiesofhepaticcancer.Theintroductionofhepaticarterialperfusionandembolizationhasprovidedopportunitiesforasecondaryoperationonpatientswithintermediateandadvancedcancer,thusprolonging
简介:AIMTodescribeathree-dimensionalmodel(3DM)toaccuratelyreconstructanatomicrelationshipsofcentrallylocatedhepatocellularcarcinomas(HCCs).METHODS:FromMarch2013toJuly2014,reconstructionsandvisualsimulationsofcentrallylocatedHCCswereperformedin39patientsusinga3Dsubject-basedcomputedtomography(CT)modelwithcustomdevelopedsoftware.CTimageswereusedforthe3DreconstructionofCouinaud'spediclesandhepaticveins,andthecalculationofcorrespondingtumorterritoriesandhepaticsegmentswasperformedusingYorktalDMITsoftware.Therespectivevolume,surgicalmargin,andsimulatedvirtualresectionoftumorswerealsoestimatedbythismodelpreoperatively.Allpatientsweretreatedsurgicallyandtheresultswereretrospectivelyassessed.Clinicalcharacteristics,imagingdata,procedurevariables,pathologicfeatures,andpostoperativedatawererecordedandcomparedtodeterminethereliabilityofthemodel.RESULTS:3Dreconstructionallowedstereoscopicidentificationofthespatialrelationshipsbetweenphysiologicandpathologicstructures,andofferedquantifiableliverresectionproposalsbasedonindividualizedliveranatomy.Thepredictedvalueswereconsistentwiththeactualvaluesfortumormassvolume(82.4±109.1mLvs84.1±108.9mL,P=0.910),surgicalmargin(10.1±6.2mmvs9.1±5.9mm,P=0.488),andmaximumtumordiameterthenumberandextentofportalvenousramifications,aswellastheirrelationtohepaticveins,werevisualized.Preoperativeplanningbasedonsimulatedresectionfacilitatedcompleteresectionoflargetumorslocatedintheconfluenceofmajorvessels.Andmostofthepredicteddatawerecorrelatedwithintraoperativefindings.CONCLUSION:This3DMprovidesquantitativemorphometryoftumormassesandastereo-relationshipwithadjacentstructures,thusprovidingapromisingtechniqueforthemanagementofcentrallylocatedHCCs.
简介:瞄准:评估与hemihepatic经历hepatectomy的病人的临床的结果脉管的吸藏(HHO)与全部的肝的流入吸藏(THO)相比。方法:比较hemihepatic的使随机化的控制试用(RCT)脉管的吸藏和全部的肝的流入吸藏被系统的文学搜索包括。二个作者独立地为包括估计了试用并且提取了数据。元分析被进行基于aspartateaminotransferase(著名计算机生产厂商)和丙氨酸aminotransferase(中高音)的层次估计血损失,输送要求,和肝损害。固定效果模型或随机的效果模型被使用。结果:包括338个病人的四RCT满足了predened包括标准。167个病人的一个总数与THO被对待并且171与HHO。著名计算机生产厂商的元分析与加权的吝啬的差别(WMD)在THO组在手术后的白天铺平1显示的高水平342.27;95%信心间隔(CI)217.28-467.26;P=0.00001;I2=16%。元分析没在血损失上显示出THO组和HHO组之间的重要差别,输送要求,死亡,病态,操作时间,ischemic持续时间,医院停留,在手术后的白天的中高音层次1,3和7并且在手术后的白天的著名计算机生产厂商层次3和7。结论:Hemihepatic脉管的吸藏不把令人满意的利益提供给经历肝的切除术的病人。然而,他们在肝切除术以后有更少的肝损害。
简介:AIM:Toinvestigatetheeffectsofc-mybantisenseRNAoncellproliferationandtheexpressionofc-myb,TGF-β1andα1-Ⅰcollageninculturedhepaticstellatecells(HSC)fromrats.METHODS:Recombinantretroviralvectorofc-mybantisensegene(pDOR-myb)wasconstructed,andthentransfectedintoretroviralpackagecelllinePA317bymeansofDOTAP.ThepseudovirusesproducedfromtheresistantPA317cellswereselectedwithG418toinfectHSCsisolatedfromratlivers.Thecellproliferationwasmeasuredby3-[4,5-Dimethylthiazolzyl]-2,5-diphenyltetrazo-diumbromide(MTT)method.Theexpressionofc-myb,α1-ⅠcollagenandTGF-β1rnRNA,andc-mybproteininHSCswasdetectedwithsemi-quantitivereversetranseription-polymerasechainreaction(RT-PCR)andWestern-blotrespectively.RESULTS:HSCsfromratswereisolatedsuccessfullywiththeviability>98%.InthepDOR-mybinfectedHSCs,thecmybproteinexpression,cellproliferation,andα1-ⅠcollagenandTGF-β1mRNAexpressionwererepressedsignificantlycomparedwiththeircorrespondingcontrolgroups(P<0.01).CONCLUSION:c-mybplaysakeyroleinactivationandproliferationofHSC.c-mybantisenseRNAcaninhibitcellproliferation,α1-ⅠcollagenandTGF-β1mRNAexpression,suggestingthatinhibitionofc-mybgeneexpressionmightbeapotentialwayforthetreatmentofliverfibrosis.
简介:背景:近年胃癌的发生率呈逐步上升的趋势,长链非编码RNA牛磺酸上调基因1(TUG1)对胃癌的发生、发展可能起有一定的作用。目的:研究TUG1在胃癌组织中的表达及其对预后的影响,并进一步探讨TUG1与p27蛋白、细胞周期蛋白D1(cyclinD1)的相关性。方法:收集2013年6月—2013年12月青岛市市立医院48例手术切除的胃癌组织及其相应远端正常组织,采用qRT-PCR法检测TUG1mRNA表达,并分析其与临床病理特征的关系。采用蛋白质印迹法检测p27、cyclinD1蛋白表达,并分析其与TUG1表达的相关性。采用Kaplan-Meier法分析TUG1表达与预后的关系。结果:胃癌组织中TUG1mRNA表达显著高于相应正常组织(6.18±0.19对5.09±0.16,P〈0.05),且其表达与性别、年龄、肿瘤大小无关,与淋巴结转移、肿瘤分化程度和TNM分期有关(P〈0.01)。胃癌组织中p27蛋白表达显著低于正常组织(0.1709±0.0212对0.3087±0.0252,P〈0.01),cyclinD1蛋白表达显著升高(0.3417±0.0271对0.2417±0.0173,P〈0.01),且p27蛋白表达与cyclinD1蛋白表达呈负相关(r=-0.897,P〈0.01)。胃癌组织中TUG1表达与p27表达呈负相关(r=-0.730,P〈0.01),与cyclinD1表达呈正相关(r=0.809,P〈0.01)。TUG1高表达的胃癌患者生存时间明显低于TUG1低表达者(P〈0.05)。结论:长链非编码RNATUG1可能通过p27/cyclinD1途径在胃癌的发生、发展中起癌基因的作用,通过检测TUG1表达对判断胃癌患者预后具有潜在的价值。
简介:目的构建以大鼠CTGF和TIMP-1基因为靶点的双重RNA干扰表达载体质粒,以检测其转染肝星状细胞的效率.方法筛选出对CTGF和TIMP-1基因最有效的RNA干扰靶位,各设计1对含有短发夹结构的RNA干扰靶点序列,分别克隆到质粒载体psiRNA-DUO-GFPzeo,构建含目的靶基因片段的重组质粒载体psiRNA-GFP-CT-GF、psiRNA-GFP-TIMP-1和psiRNA-GFP-Com(含有CTGF和TIMP-1),进行酶切和测序鉴定.将构建成功的重组质粒psiRNA-GFP-CTGF、psiRNA-GFP-TIMP-1和psiRNA-GFP-Com转染大鼠肝星状细胞,在荧光显微镜下观察质粒转染情况,用流式细胞仪检测转染效率.结果酶切与测序结果提示重组质粒psiRNA-GFP-CTGF、psiR-NA-GFP-TIMP-1和psiRNA-GFP-Com成功构建;成功将重组质粒psiRNA-GFP-CTGF、psiRNA-GFP-TIMP-1和psiRNA-GFP-Com转染肝星状细胞,在24小时,空质粒组、CTGF组、TIMP-1组和CTGF+TIMP-1组转染效率分别为15±2%、13±1%、15±1%和14±2%,均低于质粒psiRNA-GFP-Com转染组(Com组,20±2%,P〈0.05);在48小时,空质粒组、CTGF组、TIMP-1组和CTGF+TIMP-1组转染效率分别为10±2%、9±1%、8±2%和10±1%,均低于Com组的15±2%(P〈0.05).结论成功构建靶向大鼠CTGF和TIMP-1最有效的RNA干扰靶位的双重RNA干扰表达质粒,能转染至肝星状细胞,并且psiRNA-GFP-Com转染效率最高.
简介:目的观察慢性丙型肝炎患者外周血单个核细胞(PBMC)HCVRNA含量及其对T淋巴细胞亚群的影响,以探讨HCV感染者PBMC中HCVRNA水平及其与机体免疫功能的关系.方法采用荧光定量PCR(FQ-PCR)技术对128例丙型肝炎患者血清、外周血单个核细胞的HCVRBA含量进行了检测,同时检测CD3+、CD4+、CD8+、CD4+/CD8+.结果PBMC内HCVRNA阳性组与HCVRNA阴性组比较,前者CD32+、CD4+水平降低、CD8+水平增高,CD4+/CD8+比值下降大于后者,差异有显著性(P<0.05).结论丙型肝炎病毒侵染PBMC后可加重患者的细胞免疫功能紊乱.
简介:人端粒保护蛋白1(hPOT1)的主要作用为保护端粒和调节端粒长度。目的:探讨hPOT1在人胃癌细胞中对端粒长度的调节作用及其可能机制。方法:以RNA干扰(RNAi)技术抑制人胃癌细胞株BGC-823中hPOT1的表达.以实时荧光定量聚合酶链反应(PCR)检测细胞端粒长度,以半定量逆转录聚合酶链反应(RT—PCR)检测人端粒酶逆转录酶(hTERT)mRNA表达。结果:以RNAi技术抑制hPOT1表达后,BGC-823细胞端粒长度明显缩短,反映端粒相对长度的T/S值显著小于亲本BGC-823细胞组和阴性对照组(1.383±0.091对2.758±0.647和3.043±0.548,P〈0.05),亲本细胞组与阴性对照组之间则无明显差异。hPOT1RNAi组细胞hTERTmRNA表达亦明显下调。结论:在人胃癌细胞中,hPOT1能正性调节端粒长度;在hPOT1下调引起端粒缩短的环节中,hTERT表达下降可能起一定作用。