简介:AIM:ToinvestigatetheeffectofhepatitisBvirus(HBV)XgeneonapoptosisandexpressionsofapoptosisfactorsinXgene-transfectedHepG2cells.METHODS:TheHBVXgeneeukaryonexpressionvectorpcDNVA3-XwastransientlytransfectedintoHepG2cellsbylipid-mediatransfection.UntransfectedHepG2andHepG2transfectedwithpcDNA3wereusedascontrols.ExpressionofHBxinHepG2wasidentifiedbyPT-PCR.MTTandTUNELwereemployedtomeasureproliferationandapoptosisofcellsin.threegroups.Semi-quantifiedRT-PCRwasusedtoevaluatetheexpressionlevelsofFas/FasL,Bax/Bcl-xL,andc-mycineachgroup.RESULTS:HBVXgenewastransfectedintoHepG2cellssuccessfully.RT-PCRshowedthatHBxwasonlyexpressedinHepG2/pcDNA3-Xcells,butnotexpressedinHepG2andHepG2/pcDNA3cells.AnalyzedbyMTT,cellproliferationcapacitywasobviouslylowerinHepG2/pcDNA3-Xcells(0.08910±0.003164)thaninHepG2(0.14410±0.004927)andHepG2/pcDNA3cells(0.12150±0.007159)(P<0.05andP<0.01).AnalyzedbyTUNEL,cellapoptosiswasmuchmoreinHepG2/pcDNA3-Xcells(980/2000)thanHepG2(420/2000),HepG2/pcDNA3cells(520/2000)(P<0.05andP<0.01).Evaluatedbysemi-quantifiedRT-PCR,theexpressionlevelofFas/FasLwassignificantlyhigherinHepG2cellstransfectedwithHBxthaninHepG2andHepG2/pcDNA3cells(P<0.05andP<0.01).Bax/Bcl-xLexpressionlevelwasalsoelevatedinHepG2/pcDNA3-Xcells(P<0.05andP<0.01).Expressionofc-mycwasmarkedlyhigherinHepG2/pcDNA3-XcellsthaninHepG2andHepG2/pcDNA3cells(P<0.05andP<0.01).CONCLUSION:HBVXgenecanimpaircellproliferationcapacity,improvecellapoptosis,andupregulateexpressionofapoptosisfactors.TheinterventionofHBVXgeneontheexpressionofapoptosisfactorsmaybeapossiblemechanismresponsibleforthechangeincellapoptosisandproliferation.
简介:AIM:RecombinedplasmidpETNF-P16wasconstructedtoinvestigateitsexpressionpropertiesinesophagealsquamouscarcinomacelllineEC9706inducedbyX-rayirradiationandthefeasibilityofgene-radiotherapyforesophagealcarcinoma.METHODS:RecombinedplasmidpETNF-P16wasconstructedandtransfectedintoEC9706cellswithlipofectamine.ELISA,Westernblot,andimmunocytochemistrywereperformedtodeterminetheexpressionpropertiesofpETNF-P16inEC9706aftertransfectioninducedbyX-rayirradiation.RESULTS:EukaryoticexpressionvectorpETNF-P16wassuccessfullyconstructedandtransfectedintoEC9706cells.TNFαexpressionsweresignificantlyincreasedinthetransfectedcellsafterdifferentdosesofX-rayirradiationthaninthoseafter0Gyirradiation(1192.330-2026.518pg/mL,P<0.05-0.01),andtheTNFαexpressionsandP16weresignificantlyhigher6-48hafter2GyX-rayirradiation(358.963-585.571pg/mL,P<0.05-0.001).NoP16expressionwasdetectedinnormalEC9706cells.However,therewasstrongexpressioninthetransfectedandirradiationgroups.CONCLUSION:X-rayirradiationinductioncouldsignificantlyenhanceTNFαandP16expressioninEC9706cellstransfectedwithpETNF-P16plasmid.Theseresultsmayprovideimportantexperimentaldataandtherapeuticpotentialforgene-radiotherapyofesophagealcarcinoma.
简介:目的分析非酒精性脂肪肝(NAFL)临床及生化特征,以探讨NAFL可否成为代谢综合征的一个组成部分.方法对85例NAFL患者测体重指数、腰臀比、空腹血糖、血脂、胰岛素、餐后2h血糖和胰岛素抵抗指数.以43例非脂肪肝的体检者为对照组.结果1.在NAFL患者中,中心性肥胖占70.59%,高血压病占31.77%,高TG血症占62.35%,低HDL-C占36.47%,均明显高于对照组(P<0.005~0.01),而DM/IGT/IPG的患病率,两组相比无明显差异;2.血清FINS水平和IR脂肪肝组也较对照组明显增加(P<0.01);3.在128例研究对象中,有21例患者患有代谢综合征,其中脂肪肝者占85.71%,中心性肥胖者占90.48%,高血压者占76.19%,血脂紊乱者占100%,DM/IGT/IPG者占38.10%.结论NAFL患者存在明显的胰岛素抵抗,可作为代谢综合征的一个组成部分.
简介:目的探讨阶梯式治疔在急性肠系膜静脉血栓(AMVT)中的治疗效果,并分析该方案对患者院内死亡率的影响。方法选取2014年10月至2017年10月收治的AMVT患者86例进行前瞻性研究,随机分为观察组和对照组,各43例。对照组患者采用常规抗凝、溶栓治疗;观察组患者采用阶梯式治疗,即将治疗分成3个阶段,首先行血管取栓术,其次为术后抗凝、溶栓治疗,最后行Ⅱ期手术。比较两组治疗效果,并采血测定两组治疗前后的血浆同型半胱氨酸(Hcy)、血浆叶酸(FA)、血清D-二聚体(D-D)及白细胞计数(WBC),记录两组院内死亡率。结果观察组血管再通率为97.67%,显著高于对照组的81.40%(P〈0.05)。两组治疗前的血浆Hcy、FA水平比较差异无统计学意义(P〉0.05):观察组治疗后的血浆Hcy水平低于对照组,血浆FA水平高于对照组(P均〈0.05)。两组治疗前的静脉血WBC、D-D水平比较差异无统计学意义(P〉0.05),观察组治疗后的WBC、D-D水平较显著低于对照组(P〈0.05)。观察组无患者死亡,对照组死亡率为13.95%,两组比较差异有统计学意义(P〈0.05)。结论阶梯式治疗能提高AMVT的临床疗效,降低院内死亡率,值得临床推广。
简介:应用全置入式药物输液泵治疗中晚期肝癌是肝癌治疗中的一个重要方法,对于不能切除的中晚期肝癌及配合肝癌切除术后的巩固治疗都有着十分重要的作用。肝动脉、门静脉双重置泵给药比单一用肝动脉给药效果为好。我们1993~2003年间收治34例,现就有关置泵的经验教训总结报告如下。