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简介：LongbeforethediscoveryofHelicobacterpylori,thereweremanyexcellentobservationalstudiesthatdocumenteddifferencesinthepatternsofgastroduodenaldisease.Itwasclearthatinthedevelopingworld,gastriculcerandgastriccancerweremorecommonthaninthedevelopedworldwhereduodenalulcerpredominated.Thiscorrelatedwiththedistributionofgastritisinduodenalulcerpatientswheretheinflammationwasantralpredominantwhileingastriculcerpatientsthegastritiswasmoreevenlydistributedthroughthestomach.Gastriculcersusuallyappearedinafairlyrestricteddistributioninthestomachneartheangulusandclosetothetransitionalzonebetweenantrumandbodymucosa.Asasocietydevelopedsothesepatternsofdiseasechanged.

简介：ToinvestigatetheprotectiveeffectofdecoctionofliaoweiongastricmucosaofH.pyloriassociatedchronicatrophicgastritisinrats.TheH.pyloriassociatedchronicatrophicgastritismodelswereinducedwithsodiumdeoxycholate,sodiumsalicylate,ethanol,andculturebrothofH.pylori.ProtectiveeffectofdecoctionofliaoweiongastricmucosaofH.pyloriassociatedchronicatrophicgastritiswasobservedquantitatively.

简介：EversinceHelicobacterpylori（H.pylori）wasrecognizedasaninfectiouscauseofgastriccancer,therehasbeenincreasinginterestinexaminingitspotentialroleincolorectalcarcinogenesis.Datafromcasecontrolandcross-sectionalstudies,mostlyrelyingonhospital-basedsamples,andseveralmeta-analyseshaveshownapositivestatisticalrelationshipbetweenH.pyloriinfectionandcolorectalneoplasia.However,thepossibilityexiststhattheresultshavebeeninfluencedbybias,includingtheimproperselectionofpatientsanddisparitieswithrespecttopotentialconfounders.Whiletheevidencefallsshortofadefinitivecausallink,itappearsthatinfectionwithH.pylori/H.pylori-relatedgastritisisassociatedwithanincreased,althoughmodest,riskofcolorectaladenomaandcancer.Thepathogenicmechanismsresponsibleforthisassociationremainuncertain.H.pylorihasbeendetectedincolorectalmalignanttissues;however,thepossibilitythatH.pyloriisadirectactivatorofcoloniccarcinogenesisremainspurelyhypothetical.Ontheotherhand,experimentaldatahaveindicatedaseriesofpotentialoncogenicinteractionsbetweenthesebacteriaandcolorectalmucosa,includinginductionandperpetuationofinflammatoryresponses,alterationofgutmicrofloraandreleaseoftoxinsand/orhormonalmediators,suchasgastrin,whichmaycontributetotumorformation.

简介：Overthepastseveralyears,theseverityofHelicobacterpylori（H.pylori）infectionshasnotsignificantlydiminished.Aftersuccessfuleradication,theannualH.pylorirecurrencerateisapproximately13%duetooralH.pyloriinfection.EstablishedclinicaldiagnostictechniquesdonotidentifyanoraletiologicbasisofH.pyloripriortogastricinfection.TherehasbeendisagreementastowhetheroralinfectionofH.pyloriexistsornot,withnodefiniteconclusion.Inmedicalpractice,negativeresultswiththeureabreathtestsuggestthatthestomachinfectionofH.pyloriiscuredinthesepatients.Infact,patientscanpresentnegativeureabreathtestresultsandyetexhibitH.pyloriinfectionduetooralinfection.ThepresentpaperprovidesevidencethatH.pylorioralinfectionisnonethelesspresent,andtheoralcavityrepresentsasecondarysiteforH.pyloricolonization.

简介：脱发areata是头发滤泡的疾病，与支持自体免疫的病原学的充分证据。脱发areata经常与象干癣和地衣planus那样的皮肤表明与调停免疫者的疾病被联系，或没有象自体免疫的甲状腺炎和自发的thrombocytopenic紫癜病那样的皮肤表明。Helicobacterpylori(H。pylori)感染在约50%世界人口是在场的并且包括自体免疫的甲状腺炎，自发的thrombocytopenic紫癜病，和干癣与许多调停免疫者的额外消化的混乱被联系了。有头皮和胡子的脱发areata的8瞬间历史的一个43年的老人的一个盒子被介绍。病人被一个皮肤学家正在对待并且有精神病学的支持，没有任何改进。他有消化不良的历史，脲呼吸测试证实了H。pylori感染。病人在H以后从脱发areata走进宽恕。pylori根除。如果如此的一个协会被为这个目的设计的流行病学的研究证实，新治疗学的选择能为这些病人是可得到的，特别在区域在哪儿有H的感染。pylori是高度流行的。

简介：AIM:ToverifythemethylationstatusofCDH1,DAPK,COX2,hMLH1andCDKN2AgenesandtoevaluatetheirassociationwithHelicobacterpylori(H.pylori)-cagA+andEpsteinBarrvirus(EBV)infectionsingastricadenocarcinomas.METHODS:Methylation-specificPCR(MSP)assaywasperformedin89primarygastriccarcinomas(intestinalanddiffusetypes).Microsatelliteinstability(MSI)analysiswasperformedusingtheBAT26primersetandPCRproductswereanalyzedwiththeABIPRISM3100GeneticAnalyzerusingG...

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简介：文章介绍在放射治疗以后为侵略aspergilloma经历了部分肺切除术的一个48岁的白人的案例研究。CYP4503A4的posaconazole抑制引起了病人的提高的topiramate层次，这被假设。这也被报导以便证实相互作用并且阐明精确机制，在posaconazole和topiramate之间的相互作用的进一步的pharmacokinetic分析被保证。

简介：AIM:ToevaluatehowwidelyHelicobacterpylori(H.pylori)HopEandHopVporinsareexpressedamongChileanisolatesandhowseroprevalenttheyareamonginfectedpatientsinChile.METHODS:H.pylorihopEandhopVgenesderivedfromstrainCHCTX-1wereclonedbypolymerasechainreaction(PCR),sequencedandexpressedinEscherichiacoliAD494(DE3).Gel-purifiedporinswereusedtopreparepolyclonalantibodies.ThepresenceofbothgeneswastestedbyPCRinacollectionofH.pyloriclinicalisolatesan...

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简介：AIM:Helicobacterpylori(Hpylori)hasbeenlinkedtochronicgastritis,pepticulcer,gastriccancerandMALT-lymphoma.ThelinkofgenotypesofHpyloritogastriccancerremainscontroversial.TheaimofthisstudywastoinvestigatetheHpylorivacAalleles,cagAandiceAinpatientswithgastriccancerinTaiwan.METHODS:Patientswithgastriccancer,pepticulcerandchronicgastritiswereenrolledinthisstudy.Weobtainedbiopsyspecimensfromthestomachatleast2cmawayfromthetumormargininpatientswithgastriccancer,andfromtheantrumofstomachinpatientswithpepticulcerorchronicgastritis.DNAextractionandpolymerasechainreactionwereusedtodetectthepresenceorabsenceofcagAandtoassessthepolymorphismofvacAandiceA.RESULTS:Atotalof168patients(gastriculcer:77,duodenalulcer:66,andchronicgastritis:25)werefoundtohavepositivePCRresultsofthebiopsyspecimensfrompatientswithpepticulcerandchronicgastritis.WefoundpositivecagA(139/168,83%),m2(84/168,50%)andiceA1(125/168,74%)strainsinthemajorityofpatients.Inpatientswithgastriccancer,thevacAslaandslcsubtypeswerelesscommonlyfoundthanthoseinnon-cancerpatients(35/66vs127/168,P=0.0001forslaand13/66vs93/168,P<0.0001forslc).Inthemiddleregion,themlTstraininpatientswithgastriccancerwasmorethanthatofnon-cancerpatients(23/66vs33/168,P=0.02).CONCLUSION:InTaiwan,HpyloriwithpositivevacAsla,cagAandiceA1strainsarefoundinthemajorityofpatientswithgastriccancerornon-cancerpatients.Inpatientswithgastriccancer,thevacAs1aandslcsubtypesarelessandm1Tismorethaninpatientswithpepticulcerandchronicgastritis.

简介：AIM:Toconstructanon-resistantandattenuatedSalmonellatyphimurium(S.typhimurium)strainwhichexpressesconservativeregionofadhesionABofHelicobacterpylori(Hpylon)andevaluateitsimmunogenicity.METHODS:TheABgeneamplifiedbyPCRwasinsertedintotheexpressionvectorpYA248containingasdgeneandthroughtwotransformationsintroducedintothedeltaCya1deltaCrp1deltaAsdattenuatedSalmonellatyphimuriumstrain,constructingbalancedlethalattenuatedSalmonellatyphimuriumstrainsX4072(pYA248-AB).BridgedELISAmethodwasusedtomeasuretheexpressionofABantigeninsonicateandculturesupematant.AccordingtothemethoddescribedbyMeacock,stabilityoftherecombinantwasevaluated.Semi-lethalcapacitytestwasusedtoevaluatethesafetyofrecombinant.Theimmunogenicityofrecombinantwasevaluatedwithanimalexperiments.RESULTS:TheattenuatedS.typhimuriumX4072(pYA248-AB)whichexpressesABwassuccessfullyconstructed.Furthermore,bridgedELISAassayshowedthatthecontentofABinrecombinantX4072(pYA248-AB)culturesupematantwashigherthanthatwasinthalluslyticliquor.AndafterrecombinantX4072(pYA248-AB)wasculturedfor100generationswithoutselectionpressure,bheentirerecombinantbacteriaselectedrandomlycouldgrow,andtheABantigenwasdefectedpositivebyELISA.ThegrowthcurveoftherecombinantbacteriashowedthatthegrowthstatesofX4072(pYA248)andX4072(pYA248-AB)werebasicallyconsistent.ThesurvivalrateofC57BL/6wasstill100%,at30daftermicetakingX4072(pYA248-AB)1.0×l0^10cfuorally.OralimmunizationofmicewithX4072(pYA248-AB)inducedaspecificimmuneresponse.CONCLUSION:Invitrorecombinantplasmidappearstobestableandexperimentsonanimalsshowedthattherecombinantstrainsweresafeandimmunogenicinvitro,whichprovidinganewliveoralvaccinecandidateforprotectionandcareofHpyloriinfection.

简介：背景：超声(美国)指导了锁骨的在上或下文锁骨的块通常为上面的极限外科被使用。这使随机化的研究的目的是比较块表演和发作时间，有效性，不利事件和病人的发生是指导美国的在上的接受锁骨或下文锁骨的块。我们假设了在上锁骨的途径，更表面、更容易设想使用10MHz变换器，将生产一更快并且更广泛的感觉的块。方法：120个病人被使随机化到二个相等的组：在上锁骨的(S)和下文锁骨的(I)。每个病人收到了包含ropivacaine的相等的体积的混合物7.5mg/ml和mepivacaine有肾上腺素5μg/ml的20mg/ml，0.5ml/kg身体重量(最小30ml，最大值50ml)。七根终端神经的感觉分数(0削尖的麻醉2点，痛觉缺失1点和疼痛)被估计每10min。当他们在肘下面有有效的外科的块麻醉或五根神经的痛觉缺失时，病人们为外科被宣布准备好了。在块以后的三十分钟，解块的神经被补充。块表演和潜伏时间，外科的有效性，不利事件和病人是接受被记录。结果：显著地，在I的更多的病人组织为在块以后的外科20和30min准备好了。吝啬的块表演时间在I组(NS)是在S组和5.0min的5.7min。块有效性在I组是优异的：93%对78%在S组(P=0.017)。S组病人有中部、尺骨的神经，而是腋的神经的更好的块的显著地更差的块。在10，20和30min的感觉分数不是显著地不同的。在S组的32个病人对在I组的九个病人经历了短暂不利事件(P<0.0001)。病人块的接受在两个组是类似的。结论：Infraclavicular块有更快的发作，更好外科的有效性和更少不利事件。块表演时间和病人是过程的接受在两个组是类似的。

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：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

简介：AIM:ToevaluatethecompletionrateanddiagnosticyieldofthePillCamSB2-exincomparisontothePillCamSB2.METHODS:Twohundredcasesusingthe8-hPillCamSB2wereretrospectivelycomparedto200casesusingthe12hPillCamSB2-exatatertiaryacademiccenter.Endoscopicallyplacedcapsuleswereexcludedfromthestudy.Demographicinformation,indicationsforcapsuleendoscopy,capsuletype,studylength,completionofexam,clinicallysignificantfindings,timestampofmostdistantfinding...

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：院内感染是指住院病人入院时存在的感染是以前在医院获得的，或与医院接触后发生的感染。目前院内感染已成为医学界的重要研究课题。研究表明，医护人员手上携带的细菌包括一过性和定居的细菌与院内感染密切相关。手是院内感染传播的主要媒介，在诊疗护理过程中医护人员的手直接接触病人，极易引起交叉感染，为此笔者于2001-01／2001-12对医护人员洗过的手进行采样，52份，合格者38份(标准细菌数<8个/cm2)，占73．1％，不合格者14份，占26．9％。