简介：AIMTocharacterizepunctualmutationsin23SrRNAgeneofclarithromycin-resistantHelicobacterpylori(H.pylori)anddeterminetheirassociationwiththerapeuticfailure.METHODSPCRproductsof23SrRNAgeneVdomainof74H.pyloriisolates;34resistanttoclarithromycin(29fromalow-riskgastriccancer(GC)population:Tumaco-Colombia,and5fromahigh-riskpopulation:Tuquerres-Colombia)and40fromasusceptiblepopulation(28fromTumacoand12fromTúquerres)weresequencedusingcapillaryelectrophoresis.TheconcordancebetweenmutationsofVdomain23SrRNAgeneofH.pyloriandtherapeuticfailurewasdeterminedusingtheKappacoefficientandMcNemar’stestwasperformedtodeterminetherelationshipbetweenH.pylorimutationsandclarithromycinresistance.RESULTS23SrRNAgenefromH.pyloriwasamplifiedin56/74isolates,ofwhich25wereresistanttoclarithromycin(20fromTumacoand5fromTúquerres,respectively).In17resistantisolates(13fromTumacoand4fromTúquerres)thefollowingmutationswerefound:A1593T1,A1653G2,C1770T,C1954T1,andG1827CinisolatesfromTumaco,andA2144GfromTúquerres.ThemutationsT2183C,A2144GandC2196TinH.pyloriisolatesresistanttoclarithromycinfromColombiaarereportedforthefirsttime.NoassociationbetweentheH.pylorimutationsandinvitroclarithromycinresistancewasfound.However,therapeuticfailureoferadicationtreatmentwasassociatedwithmutationsof23SrRNAgeneinclarithromycin-resistantH.pylori(κ=0.71).CONCLUSIONThetherapeuticfailureoferadicationtreatmentinthetwopopulationsfromColombiawasassociatedwithmutationsofthe23SrRNAgeneinclarithromycinresistantH.pylori.

简介：目的:探讨分析5S管理对消化科手术室优质护理服务的促进作用。方法:选取2017.03-2018.03在我院进行5S管理的60例消化科手术室工作记录作为研究组,同期未进行5S管理的60例消化科手术室工作记录作为对照组,对比其护理情况。结果:研究组术间、术后物品归位摆放程度,患者衣物及时归还率以及护士综合素质合格率显著高于对照组,手术准备时间显著低于对照组,两组间差异性显著,P<0.05,有统计学意义,对照组患者术后不良反应发生率也低于对照组,P<0.05,有统计学意义。结论:在消化科手术室优质护理服务中采用5S管理可提高护士的自主护理意识,降低消化科患者的不良反应发生率,有利于优质护理服务的顺利进行。

简介：目的探究甘草酸镁注射液联合序贯血液净化疗法对急性肝衰竭患者清蛋白（A1b）及凝血酶原活动度（PTA）水平的影响。方法选取2015年5月至2017年11月我院62例急性肝衰竭患者，依据随机数表法将患者分为观察组与对照组，各31例。对照组予以异甘草酸镁注射液治疗，观察组于异甘草酸镁注射液治疗基础上予以序贯血液净化疗法治疗。对比两组治疗效果、不良反应发生情况及治疗前、疗程结束后谷草转氨酶（AST）、总胆红素（TBil）、谷丙转氨酶（ALT）、白细胞介素-6（IL-6）、肿瘤坏死因子-α（TNF-α）、A1b及PTA水平的变化。结果观察组总有效率为83．87％，显著高于对照组的61．29％（P〈0．05）。两组疗程结束后AST、ALT、TBil水平均较治疗前有所降低（P〈0．05），且观察组更为显著（P〈0．05）；两组疗程结束后PTA、A1b水平均较治疗前有所升高（P〈0．05），且观察组升高更为显著（P〈0．05）；两组疗程结束后IL-6、TNF-α水平均较治疗前有所降低（P〈0．05），且观察组降低更为显著（P〈0．05）。观察组不良反应率为22．58％，与对照组的12．90％相比，差异无统计学意义（P〉0．05）。结论异甘草酸镁注射液联合序贯血液净化疗法治疗急性肝衰竭患者，可显著改善患者肝功能及凝血功能，明显降低血清IL-6、TNF-α水平，效果更为显著，且安全性较高，值得临床推广应用。

简介：AIMToexploretheprotectiveeffectsandunderlyingmechanismsoftotalpolysaccharidesoftheSijunzidecoction(TPSJ)ontheepithelialbarriersinvitro.METHODSCaco-2cellmonolayersweretreatedwithorwithoutTPSJinthepresenceorabsenceofTNF-α,andparacellularpermeabilityandtransepithelialelectricalresistance(TEER)weremeasuredtoevaluatetheepithelialbarrierfunction.Immunofluorescenceandwesternblottingwererespectivelyusedtoevaluatethedistributionandexpressionofthetightjunctionproteinsclaudin1,claudin2,zo3,andoccludininCaco-2cells.Westernblottingwasalsousedtoevaluatethecellularexpressionofmyosinlightchain(MLC),phosphorylatedMLC(pMLC),MLCkinase(MLCK),andnuclearfactor(NF)-κBp65.RESULTSTPSJpromotedtheproliferationofCaco-2cellsandinhibitedTNF-α-inducedsecretionofpro-inflammatorycytokines.Furthermore,TPSJsignificantlyamelioratedboththereductionofTEERandtheincreasedparacellularpermeabilityobservedintumornecrosisfactor(TNF)-α-damagedCaco-2monolayers.Furthermore,TPSJremarkablyattenuatedTNF-α-inducedmorphologicalchanges,downregulatedtheexpressionofclaudin1,claudin2,zo3,andoccludin,andmarkedlysuppressedTNF-α-mediatedupregulationofp-MLCandMLCKexpression.Finally,TPSJinhibitedtheactivationandexpressionofNF-κBp65.CONCLUSIONOurresultsdemonstratethatTPSJalleviatestheTNF-α-inducedimpairmentoftheintestinalepithelialcellbarrierfunctionbysuppressingNF-κBp65-mediatedphosphorylationofMLCKandMLC.