简介:目的:食管癌是全球发病率及死亡率均较高的消化系统恶性肿瘤,高死亡率的主要原因为食管癌的复发与转移,肿瘤转移抑制基因逐渐成为研究热点,近年来医学领域对肿瘤转移抑制基因的重视与研究也在不断提高与深入,本文主要就常见7种肿瘤转移抑制基因在食管癌中的表达及意义进行分析探讨,为食管癌的临床诊疗提供参考。方法:纳入食管癌癌存档蜡块100例为研究目标,采用免疫组化S-P法检测本组食管癌组织中KISS1/hot7T175、KAI1/CD82、BRMS1、TIP/CC3、Maspin、MKK4、MTSS1蛋白的表达情况,分析其与食管癌转移的关系。结果:食管癌的淋巴结转移与KISS1/hot7T175、KAI1/CD82、Maspin蛋白表达呈负相关性(P<0.05),与MTSS1蛋白表达呈正相关性(P<0.05);与TIP30/CC3、BRMS1、MKK4蛋白表达无关(P>0.05)。食管的远处转移与KISS1蛋白的表达呈负相关性(P<0.05),与MTSS1蛋白的表达呈正相关性(P<0.05),与KAI1/CD82、BRMS1、TIP/CC3、Maspin和MKK4蛋白表达无关(P>0.05)。结论:KISS1/hot7T175蛋白基因可能抑制食管癌的淋巴结转移及远处转移。KAI1/CD82、Maspin蛋白基因可能抑制食管癌的淋巴结转移。MTSS1蛋白基因可能促进食管癌的淋巴结转移及远处转移。
简介:背景:消化道出血是内镜息肉摘除术最常见的并发症。目的:观察金属夹联合尼龙套圈对内镜带蒂大息肉摘除术的效果和安全性。方法:选取2011年6月一2012年8月上海市第一人民医院分院89例带蒂大息肉患者,分为尼龙套圈组(A组)和金属夹联合尼龙圈套组(B组),回顾性分析息肉形态、部位、大小以及并发症发生率。结果:A组和B组息肉形态均以山田Ⅳ型为主,主要位于乙状结肠,两组患者性别、年龄、息肉顶部、蒂部平均直径相比均无明显差异(P〉0.05)。A组和B组的术中出血发生率(12.8%对10.0%)、术后迟发性出血发生率(10.3%对4.0%)相比均无明显差异(P〉0.05),经治疗后出血均停止。A组2例患者术后3个月息肉复发,B组手术创面愈合良好,无息肉残端残留。结论:金属夹联合尼龙套圈能有效预防内镜下带蒂大息肉切除术中和术后的出血。
简介:AIM:ToinvestigatetheroleoftheoverexpressionofB7-H3inapoptosisincolorectalcancercelllinesandtheunderlyingmolecularmechanisms.METHODS:SW620cellsthathighlyoverexpressedB7-H3(SW620-B7-H3-EGFP)andHCT8cellsstablytransfectedwithB7-H3shRNA(HCT8-shB7-H3)werepreviouslyconstructedinourlaboratory.CellstransfectedwithpIRES2-EGFPwereusedasnegativecontrols(SW620-NCandHCT8-NC).Real-timePCRandwesternblottinganalysiswereusedtodetectthemRNAandproteinexpressionsoftheapoptosisregulatorproteinsBcl-2,Bcl-xlandBax.Acellproliferationassaywasusedtoevaluatethesurvivalrateanddrugsensitivityofthecells.Theeffectofdrugresistancewasdetectedbyacellcycleassay.Activecaspase-3westernblottingwasusedtoreflecttheanti-apoptoticabilityofcells.WesternblottingwasalsoperformedtodeterminetheexpressionofproteinsassociatedwiththeJak2-STAT3signalingpathwayandtheapoptosisregulatorproteinsafterthetreatmentwithAG490,aJak2specificinhibitor,inB7-H3overexpressingcells.ThedatawereanalyzedbyGraphPadPrism6usinganon-pairedt-test.RESULTS:WhetherbyoverexpressioninSW620cellsordownregulationinHCT8,B7-H3significantlyaffectedtheexpressionofanti-andpro-apoptoticproteins,atboththetranscriptionalandtranslationallevels,comparedwiththenegativecontrol(P<0.05).AcellproliferationassayrevealedthatB7-H3overexpressionincreasedthedrugresistanceofcellsandresultedinahighersurvivalrate(P<0.05).Inaddition,theresultsofcellcycleandactivecaspase-3westernblottingprovedthatB7-H3overexpressioninhibitedapoptosisincolorectalcancercelllines(P<0.05).B7-H3overexpressionimprovedJak2andSTAT3phosphorylationand,inturn,increasedtheexpressionofthedownstreamanti-apoptoticproteinsB-cellCLL/lymphoma2(Bcl-2)andBcl-xl,basedonwesternblotting(P<0.05).AftertreatingB7-H3overexpressingcellswiththeJak2-specificinhibitorAG490,thephosphorylationofJak2andSTAT3,andtheexp
简介:AIM:Toevaluatetheefficacyofthe14-dmoxifloxacinbasedtripletherapyforthesecond-lineeradicationofHelicobacterpylori(H.pylori)infection.METHODS:Between2011and2013,weconductedaretrospectivereviewofthemedicalrecordsof160patientswhohadexperiencedfailureoftheirfirst-lineprotonpumpinhibitor-basederadicationtherapyandsubsequentlyreceivedthemoxifloxacin-basedtripletherapyasasecond-lineeradicationtreatmentregimen.Thepatientswhoweretreatedwiththemoxifloxacinbasedtripletherapy(oral20mgrabeprazoleb.i.d.,1000mgamoxicillinb.i.d.,and400mgmoxifloxacinq.d.)for7dwereassignedtotheRAM-7group(n=79)whilethosewhotookthemfor14dayswereassignedtoRAM-14group(n=81).Theeradicationratesforbothgroupsweredeterminedbyintentionto-treat(ITT)andper-protocol(PP)analyses.ITTanalysiscomparedthetreatmentgroupsasoriginallyallocatedwhilethePPanalysisincludingonlythosepatientswhohadcompletedthetreatmentasoriginallyallocated.SuccessfuleradicationtherapyforH.pyloriinfectionwasdefinedasthedocumentationofanegative13C-ureabreathtest4wkaftertheendoftheeradicationtreatment.RESULTS:TheoverallITTeradicationratewas76.2%(122/160).ThefinalITTeradicationrateswere70.8%(56/79;95%CI:63.3%-77.1%)intheRAM-7groupand81.4%(66/81;95%CI:74.6%-88.3%)intheRAM-14group(P=0.034).TheoverallPPeradicationratewas84.1%(122/145),andthefinalPPeradicationrateswere77.7%(56/72;95%CI:70.2%-85.3%)intheRAM-7groupand90.4%(66/73;95%CI:82.8%-98.1%)intheRAM-14group(P=0.017).TheH.pylori-eradicationratesintheRAM-14groupweresignificantlyhighercomparedwiththatoftheRAM-7groupaccordingtoboththeITT(P=0.034)andthePPanalyses(P=0.017).Bothgroupsexhibitedgoodtreatmentcompliance(RAM-7/RAM-14group:100%/100%).Theadverseeventrateswere19.4%(14/72)and20.5%(15/73)intheRAM-7andRAM-14groups,respectively(P=0.441).Adverseeventsoccurredin14