简介:AIM:ToevaluatethecompletionrateanddiagnosticyieldofthePillCamSB2-exincomparisontothePillCamSB2.METHODS:Twohundredcasesusingthe8-hPillCamSB2wereretrospectivelycomparedto200casesusingthe12hPillCamSB2-exatatertiaryacademiccenter.Endoscopicallyplacedcapsuleswereexcludedfromthestudy.Demographicinformation,indicationsforcapsuleendoscopy,capsuletype,studylength,completionofexam,clinicallysignificantfindings,timestampofmostdistantfinding...
简介:LongbeforethediscoveryofHelicobacterpylori,thereweremanyexcellentobservationalstudiesthatdocumenteddifferencesinthepatternsofgastroduodenaldisease.Itwasclearthatinthedevelopingworld,gastriculcerandgastriccancerweremorecommonthaninthedevelopedworldwhereduodenalulcerpredominated.Thiscorrelatedwiththedistributionofgastritisinduodenalulcerpatientswheretheinflammationwasantralpredominantwhileingastriculcerpatientsthegastritiswasmoreevenlydistributedthroughthestomach.Gastriculcersusuallyappearedinafairlyrestricteddistributioninthestomachneartheangulusandclosetothetransitionalzonebetweenantrumandbodymucosa.Asasocietydevelopedsothesepatternsofdiseasechanged.
简介:背景:研究表明GEF-H1能激活Rho蛋白,与肿瘤发生、发展、浸润、迁移等密切相关。目的:构建人pEGFP-GEF-H1载体并稳定转染结肠癌HCT116细胞后检测GEF-H1表达。方法:在线合成引物软件设计人GEF-H1基因引物,构建重组质粒pEGFP-GEF-H1,并转染结肠癌HCT116细胞,以转染空质粒和未转染的细胞分别作为空质粒组和空白对照组。荧光显微镜下观察绿色荧光蛋白表达,RT-PCR和蛋白质印迹法分别检测GEF-H1mRNA和蛋白表达水平。结果:成功构建了人pEGFP-GEF-H1载体,测序结果表明序列正确。转染重组质粒pEGFP-GEF-H1后,荧光显微镜下可见较强的绿色荧光,GEF-H1mRNA和蛋白表达水平均较空质粒组和空白对照组明显上调。结论:体外成功构建了人pEGFP-GEF-H1载体,且转染结肠癌HCT116细胞后高表达GEF-H1,为进一步探讨结肠癌与GEF-H1的关系提供了必要的实验材料。
简介:ToinvestigatetheprotectiveeffectofdecoctionofliaoweiongastricmucosaofH.pyloriassociatedchronicatrophicgastritisinrats.TheH.pyloriassociatedchronicatrophicgastritismodelswereinducedwithsodiumdeoxycholate,sodiumsalicylate,ethanol,andculturebrothofH.pylori.ProtectiveeffectofdecoctionofliaoweiongastricmucosaofH.pyloriassociatedchronicatrophicgastritiswasobservedquantitatively.
简介:目的探讨甲状腺素(TH)水平对H—rasl2V转基因肝癌小鼠肝肿瘤的影响。方法将45只H—rasl2V转基因肝癌小鼠随机分为甲状腺机能亢进症组、甲状腺机能减退症组和对照组,分别给予甲状腺素片、丙硫氧嘧啶片或蒸馏水灌胃制造不同的TH水平状态,待小鼠7月龄后,测量肝脏肿瘤指标。结果甲状腺机能亢进症组小鼠血清T3和T4分别为(226.5±79.0)ng/dL,和(1.0±0.5)μg/dL,显著高于甲状腺机能减退症组【分别为(148.9±52.1)ng/dL和(0.8±0.4)pm01/L,P〈0.051,也显著高于对照组【分别为(175.3±63.9)n/dL和(O.9±O.4)μg/aL,P〈O.05】;甲状腺机能亢进症组小鼠游离T3和T4分别为(0.5±0.2)pm01/L和(4.3±1.4)pm01/L,显著高于甲状腺机能减退症组【分别为(0.3±0.1)pmol/L和(1.8±0.5)pm01]L,P〈0.05】,也显著高于对照组【分别为(O.4±0.2)pmol/L和(1.9±0.7)pmol/L,P〈0.05】;甲状腺机能亢进症组小鼠肿瘤数为(7.9±3.2)个,肿瘤直径超过2mm的数量为(4.1±2.7)个,肝/体质量比为(8.6±2.4),显著低于甲状腺机能减退症组【分别为(14.0±73)个、(9.9±4.8)个和(13.5±4.6),P〈O.05】,也显著低于对照组【分别为(11.4±5.3)个、(7.7±3.1)个和(11.3±3.5),P〈0.051o结论甲状腺素水平的高低能影响H—rasl2V转基因肝癌小鼠肝脏肿瘤生长,甲状腺素可以有效抑制肿瘤的发展。
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:【摘要】目的:探讨在糖尿病患者的临床诊断中,血液生化检验的应用价值。方法:选取患有糖尿病的患者作为研究组进行研究,一共是60名,在对同一时间进行体检后身体健康的60名人员设置成健参照组进行对比研究,两组人员均接受血液生化检验,对两组人员的空腹血糖(FBG)、餐后2小时血糖(2hPBG)、葡萄糖耐量、糖化血红蛋白(HbA1c)、果糖胺(FMN)、总胆固醇(TC)及甘油三酯(TG)等指标进行了对比分析,还对研究组各生化指标的疾病检出率进行了分析。结果:研究组的FBG、2hPBG均显著高于参照组;研究组的HbA1c、FMN、TG、TC、葡萄糖耐量等指标也均高于参照组;在研究组别中,HbA1c、FMN、TG三个指标的检出率都要比葡萄糖耐量高,差异显著(P<0.05)。结论:采取血液生化检验这种方法可以更加准确的将糖尿病病人诊断出来,从而为患者的后续治疗提供可靠依据。