简介:目的观察分子吸附再循环系统(MARS)对肝衰竭患者Th1/Th2型细胞因子水平的影响,探讨MARS在肝衰竭治疗中的临床价值。方法28例肝衰竭患者接受MARS治疗,采用ELISA法测定血清TNF-α、IFN-γ、IL-6、IL-10和IL-12水平,比较其在治疗前后的变化。结果在MARS治疗结束时,患者血清TNF-α、IFN-γ、IL-6水平分别为(40.3±3.7)pg/ml、(25.9±1.9)pg/ml、(33.6±2.5)pg/ml,显著低于治疗前【(81.5±6.2)pg/ml、(49.3±2.2)pg/ml、(66.8±4.1)pg/ml,P均〈0.01】;治疗结束时血清IL-10和IL-12水平分别为(39.3±2.6)pg/ml和(168.7±8.5)pg/ml,显著高于治疗前【(37.1±1.9)pg/ml和(98.6±6.5)pg/ml,P〈0.01】;在MARS治疗结束后7d,患者TNF-α、IFN-γ、IL-6、IL-10和IL-12水平分别为(80.3±3.9)pg/ml、(48.6±2.1)pg/ml、(65.1±2.4)pg/ml、(38.4±2.2)pg/ml、(99.8.6±7.9)pg/ml,与治疗前相比,差异无显著性(P〉0.05)。结论MARS治疗肝衰竭患者有利于纠正失衡的Th1/Th2型细胞因子水平,减轻免疫反应对肝组织的损伤,为肝细胞再生提供机会。
简介:TheTenthInternationalGastricCancerCongress(IGCC)washeldinVerona,Italy,fromJune19to22,2013.Themeetingenclosedvariousaspectsofstomachtumormanagement,includingbothtightlyclinicalapproaches,andtopicsmorerelatedtobasicresearch.Moreover,anoverviewongastrointestinalstromaltumorswasprovidedtoo,althoughherenotdiscussed.Herewewilldiscusssometopicsrelatedtomolecularbiologyofgastriccancer(GC),inherenttoprognostic,diagnosticandtherapeutictoolsshownattheconference.Resultsaboutwellknownsubjects,suchasE-cadherinlossofexpression/function,werepresented.Theyrevealedthatothermutationsofthegenewereidentified,showingacontinuousresearchtoimprovediagnosisandprognosisofstomachtumor.Simultaneously,newpossiblemolecularmarkerswithanestablishedroleforotherneoplasms,werediscussed,suchasmesothelin,stomatin-likeprotein2andNotch-1.Hence,awideoverviewincludingbotholdandnewdiagnostic/prognostictoolswasoffered.GreatattentionwasalsodedicatedtopossibledrugstobeusedagainstGC.Theyincludedmonoclonalantibodies,suchasMS57-2.1,drugsusedinotherpathologies,suchasmaraviroc,andnaturalextractsfromplantssuchasbiflorin.WewouldliketocontributetosummarizethemostimpressivestudiespresentedattheIGCC,concerningnovelfindingsaboutmolecularbiologyofgastriccancer.Althoughfurtherinvestigationswillbenecessary,itcanbeinferredthatmoreandmoretoolsweredeveloped,soastobetterfacestomachneoplasms.
简介:AIM:Toinvestigateifanimmuneimbalancemayaccountforthedevelopmentandprogressionofchronicradiationenteritis.WeanalyzedtheTh1/Th2immuneresponseprofileearlyand6moafterfractionatedcolorectalirradiation.METHODS:Aratmodeloffractionatedcolorectalγ-irradiation(4-Gyfractions,3fractionsperweek)wasdesignedtoinvestigatetheeffectsofcumulativedoseoninflammatorymediators(cytokinesandchemo-kines)andimmuneresponse(Th1/Th2profileandim-munosuppressivemediatorIL-10)duringacute(early)responseand6moaftertheendoffractionatedirradia-tion(chronicresponse).Analyseswereperformed1dafterthecumulativedosesof16Gyand36Gyand1d,3d,and26wkafterthecumulativedoseof52Gy.RESULTS:Withoutcausinghistologicaldamage,fractionatedradiationinducedelevatedexpressionofIL-1β,TNFα,MCP-1,andiNOSindistalcolonicmucosaduringtheearlypost-irradiationphase.Atthattime,aTh2profilewasconfirmedbyexpressionofboththeTh2-specifictranscriptionfactorGATA-3andthechemokinereceptorCCR4andbysuppressionoftheTh1cytokineIFNγ/IP-10throughouttheirradiationprotocol.After6mo,despitethe2-foldreductionofiNOSandMCP-1levels,theTh2profilepersisted,asshownbya50%reductionintheexpressionoftheTh1transcriptionfactorT-bet,thechemokinereceptorCCXCR3,andtheIFNγ/STAT1pathway.Atthesametime-point,theimmuno-suppressiveIL-10/STAT3pathway,knowntoregulatetheTh1/Th2balance,wasexpressed,inirradiatedrats,atapproximatelyhalfitslevelascomparedtocontrols.ThissuppressionwasassociatedwithanoverexpressionofSOCS3,whichinhibitsthefeedbackoftheTh1polarizationandregulatesIL-10production.CONCLUSION:ColorectalirradiationinducesTh2polarization,defectiveIL-10/STAT3pathwayactivationandSOCS3overexpression.Thesechanges,inturn,maintainaimmunologicalimbalancethatpersistsinthelongterm.
简介:材料和方法一、标本收集我院及协作单位病理科1986年/1996年胆囊良、恶性病变手术切除标本,HE染色确诊,胆囊腺癌38例,(高分化18例,低分化8例,未分化8例,粘液腺癌4例),胆囊粘膜上皮异型增生24例(轻度8例,中度6例,重度10例),另取20例正常胆囊粘膜标本作对照.
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:应用压力传感器持续监测气囊压力,观察气囊压力的变化规律,为临床更好的进行气囊管理提供依据。方法:气管导管的外露指示气囊通过三通、延长管与压力传感器相连,压力传感器的压力信号输出端与PHILIPS床旁监护仪压力导联线相连,压力校正完成后,通过监护仪持续监测气囊压力,每小时记录一次气囊压力。结果:各时间点的气囊压力采用重复测量的方差分析,F=8.367,P=0.001,各时间点的气囊压力存在统计学差异,至少有两个时间点气囊压力存在差异;两两比较结果显示,5小时、7小时、8小时气囊压低于起始值,差异有统计学意义(P<0.05);气囊压力与监测时间呈负相关,相关系数为-0.933,气囊压力随着时间的推移呈下降趋势。结论:气囊存在微漏气,气囊压力会随着时间的推移逐渐下降,使用压力传感器可以持续动态监测气囊压力,及时发现压力不足,保证气囊压力处于控制范围。
简介:目的探讨快速康复外科(Frs)护理理念在胃肠手术患者中的应用效果。方法选择2011年11月-2012年3月收治的89例胃肠道肿瘤手术患者。随机分为对照组和FTS组,对照组按围手术期常规护理;FTS组将快速康复理念应用于胃肠道肿瘤手术患者围术期护理的各个环节中.比较两组患者手术及术后恢复相关评价指标。结果两组患者手术时间、术中失血量及术后并发症的发生率无显著性差异(P〉0.05);术后恢复指标中FTS组肛门首次排气时间、离床活动时间、饮食恢复时间、术后住院时间等明显低于对照组。有统计学意义(P〈0.05)。结论快速康复理念在围手术期护理中的运用,可促进胃肠手术患者早期康复,缩短住院时间。