简介:AIM:Toinvestigatetheefficacyofneoadjuvantchemoradiotherapy(NACRT)forresectabilityoflocallyadvancedgastriccancer(LAGC).METHODS:BetweenNovember2007andJanuary2014,29patientswithLAGC(clinicallyT3withdistalesophagusinvasion/T4orbulkyregionalnodemetastasis)thatweretreatedwithNACRTfollowedbyD2gastrectomywereincludedinthisstudy.ResectabilitywasevaluatedwithradiologicandendoscopicexamsbeforeandafterNACRT.Usingthreedimensionalconformalradiotherapy,patientsreceived45Gy,withadailydoseof1.8Gy.Theentiretumorextentandtheregionalmetastaticlymphnodeswereincludedinthegrosstumorvolume.PatientspresentingwitharesectabletumorafterNACRTreceivedatotalorsubtotalgastrectomywithD2dissection.ThepathologictumorresponsewasevaluatedusingJapaneseGastricCancerAssociationhistologicevaluationcriteria.PostoperativemorbiditywasevaluatedusingtheNationalCancerInstitute-CommonTerminologyCriteriaforAdverseEventsversion4.0.Overallsurvival(OS)andprogression-freesurvival(PFS)rateswereestimatedusingaKaplan-Meieranalysisandcomparedusingthelog-ranktest.RESULTS:Allpatientswereassessedasunresectablecases.Twenty-fourpatients(24/29;82.8%)showedLAGConpositronemissiontomography-computedtomography(CT)andcontrast-enhancedCT,whereasfourpatients(4/29;13.8%)withvagueinvasionorabutmenttoanadjacentorganunderwentdiagnosticlaparoscopy.Onepatient(1/29;3.4%),initiallyassessedasaresectablecase,underwentan'openandclosure'afterthetumorwasfoundtobeunresectable.Abutmenttoanadjacentorgan(34.5%)wasthemostcommonreasonforNACRT.TheclinicalresponserateonemonthafterNACRTwas44.8%.AfterNACRT,69%(20/29)ofpatientshadaresectabletumor.Ofthe20patientswitharesectabletumor,18patients(62.1%)underwentaD2gastrectomy.TheR0resectionratewas94.4%andtwopatients(2/18;11.1%)showedacompleteresponse.Themedianfollow-updurationwas13.5mo.Theone-yearOSandPFS
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:Ithasbeenfoundthatexpressionof15-lipoxygenasc-1(15-LOX-1)anditsmainproduct,13-C-hydroxyoctadecadienoicacid(13-S-HODE),aredecreasedinhumancolorectalandesophagealcancersandthatnonsteroidalanti-inflammatorydrugs(NSAIDs)cantherspeuticallyinduce15-LOC-1expressiontotriggerapoptosisinthosecancercellsindependentlyCOX-2.WefoundthataspecificCOX-2inhibitorSC-236similarlyinduceapoptosisingastriccancercells,althoughthemechanismsoftheseeffectsremaintobedefined.Inthepresentstudy,wetestedwhetherSC-236inducedapoptosisthroughup-regulationof15-LOX-1ingastriccancercells.Wefoundthat,(a)SC-236inhibitedgrowthofgastriccancercellsmainlybyapoptosisinduced;(b)SC-236induced15-LOX-1expressionandincreasedendogenous13-S-HODEproduct,insteadof15-S-HETEduringapoptosisingastriccancercellswithout15-LOX-1expressionbeforetreatmentbySC-236;(c)sc-236didn'teffectexpressionofCOX-1,COX-2,5-LOXand12-LOX;and(d)15-LOX-1inhibitionsuppressedSC-236inducedapoptosis.ThesefindingsdemonstratedthatSC-236inducedapoptosisingastriccancercellsviaup-regulationof25-LOX-1.Theyalsosupporttheconceptthatthelossoftheproapopoticroleof15-LOX-1inepithelialcancersisnotlimitedtohumancolorectalandesophagealcancers.
简介:继1996年幽门螺杆菌(H.pylori)感染处理的Maastricht共识会议后,欧洲H.pylori研究组(EHPSG)于2000年再次在荷兰Maastricht举行会议,对原先的Maastricht指南进行修订和更新.
简介:瞄准:在主要hepatocellular癌(HCC)探索E2F5的表示模式并且阐明在hepatocarcinogenesis的E2F5的角色。方法:E2F5表示被immunohistochemistry分析在120主要HCC和29正常的肝纸巾分析。E2F5小的介入RNA是进HepG2的transfected,一根E2F5-overexpressedHCC房间线。在E2F5以后击倒,细胞生长能力和移居的潜力被检验。结果:E2F5是显著地在主要HCC的overexpressed与正常的肝纸巾相比(P=0.008)。显著地显示出的沉默E2F5的房间减少了增长(P=0.004)。在殖民地形成和软琼脂试金上,殖民地的数字显著地在沉默E2F5的房间被减少(P=0.004并且P=0.009,分别地)。E2F5击倒导致了G0/G1阶段房间和S阶段房间的减小的累积。移居/入侵房间的数字也在E2F5以后被减少击倒(P=0.021)。结论:到我们的知识,这是E2F5是的第一条证据通常在主要HCC和那E2F5的overexpressed击倒显著地镇压了HCC房间的生长。
简介:AIM:Toevaluatetheimpactofsociodemographic/clinicalfactorsonearlyvirologicalresponse(EVR)topegin-terferon/ribavirinforchronichepatitisC(CHC)inclinicalpractice.METHODS:Weconductedamulticenter,cross-sectional,observationalstudyinHepatologyUnitsof91Spanishhospitals.CHCpatientstreatedwithpeginterferonα-2aplusribavirinwereincluded.EVRwasdefinedasundetectablehepatitisCvirus(HCV)-ribonucleicacid(RNA)or≥2logHCV-RNAdecreaseafter12wkoftreatment.AbivariateanalysisofsociodemographicandclinicalvariablesassociatedwithEVRwascarriedout.IndependentfactorsassociatedwithanEVRwereanalyzedusingamultipleregressionanalysisthatincludedthefollowingbaselinedemographicandclinicalvariables:age(≤40yearsvs>40years),gender,race,educationallevel,maritalstatusandfamilystatus,weight,alcoholandtobaccoconsumption,sourceofHCVinfection,alanineaminotransferase(ALT)andaspartateaminotransferase(AST)levels,andgammaglutamyltranspeptidase(GGT)(≤85IU/mLvs>85IU/mL),serumferritin,serumHCV-RNAconcentration(<400000vs≥400000),genotype(1/4vs3/4),cirrhoticstatusandribavirindose(800/1000/1200mg/d).RESULTS:Atotalof1014patientswereincludedinthestudy.Meanageofthepatientswas44.3±9.8years,70%weremale,and97%wereCaucasian.ThemainsourcesofHCVinfectionwereintravenousdrugabuse(25%)andbloodtransfusion(23%).SeventyeightpercentwereinfectedwithHCVgenotype1/4(68%hadgenotype1)and22%withgenotypes2/3.TheHCV-RNAlevelwas>400000IU/mLin74%ofpatients.ThemeanALTandASTlevelswere88.4±69.7IU/mLand73.9±64.4IU/mL,respectively,andmeanGGTlevelwas82±91.6IU/mL.Themeanferritinlevelwas266±284.8μg/L.Only6.2%ofpatientspresentedwithcirrhosis.Allpatientsreceived180mgofpeginterferonα-2a.Themostfrequentlyusedribavirindoseswere1000mg/d(41%)and1200mg/d(41%).Theplannedtreatm
简介:急性胰腺炎(acutepancreatitis,AP)是常见的急腹症之一,近年发病率呈上升趋势。AP病情凶险,死亡率高,是对人类健康最有威胁的急腹症之一。早期诊断和评估AP至关重要,目前应用最广泛的AP诊断指标为血淀粉酶。但其检测结果有时不尽如人意。多因子评分系统.如Rason、Glasgow、APACHEⅡ等须于入院后48h才能对病情作出评估,对制定早期治疗决策帮助不大。APACHEⅡ由于评分过程复杂,临床应用受到一定影响。B超检查对轻症AP(MAP)的诊断并不敏感。价格、普及性以及造影剂的不良反应等问题,在某种程度上限制了增强CT在AP早期诊断中的实用性。
简介:目的探讨2型糖尿病合并慢性并发症的骨代谢改变机制。方法测定60例2型糖尿病合并慢性并发症病人和60例糖尿病无并发症病人以及与其年龄、体重指数相匹配的60例健康对照组的空腹血糖(FBG)、血钙(Ca)、血磷(P)、血碱性磷酸酶(ALP)、血清骨钙素(BGP)、糖化血红蛋白(HbAlc)、尿羟脯氨酸(HOP)、尿脱氧吡啶啉(DPd)和骨密度(BMD)。结果2型糖尿病合并慢性并发症病人组与无并发症组和对照组相比,血清BGP明显下降、尿HOP、DPd明显升高,BMD下降加快。结论2型糖尿病病人的骨密度下降,合并慢性并发症病人比无并发症病人BMD下降为快。
简介:瞄准:学习三氧化二砷的anti-hepatoma效率(作为(2)O(3))在试验性的老鼠肝细胞的治疗,癌(HCC)由2-acetamidofluorene(2-FAA)导致了并且阐明可能的机制。方法:SD老鼠(2瞬间旧)用2-FAA被喂了让8wk导致HCC,然后他们被对待与作为(2)O(3)或妈三倍。在d上29,老鼠被打死,肝被称,肝肿瘤被数。肝织物的组织学的变化在显微镜下面被观察,并且细胞的动态参数被流动血细胞计数学习。Immunohistochemistry(二拍子的圆舞方法)被用来在连续的节上观察脉管的内皮生长因素(VEGF)和微容器的密度(MVD)的表示。病理学的参数也被分析,浆液aspartateaminotransferase(著名计算机生产厂商)的层次,丙氨酸aminotransferase(中高音),全部的胆红素(TBi),和直接胆红素(DBi)。结果:肝肿瘤的数字在对待与的组显著地减少了作为(2)O(3),在特别中等剂量(1mg/kg)组织(t=2.80,P<0.01)。当(2)O(3)经由apoptosis引起了HCC细胞死亡;坏死被看见,当剂量是1mg/kg时,apoptosis是普通的。增长索引严厉地减少了在中等剂量(1mg/kg)组织(7.87+/-4.11对24.46+/-6.49,t=2087,P<0.01),然而并非在0.2mg/kg组。然而,S阶段部分在两个组戏剧性地减少了,仅仅当剂量与控制相比是1mg/kg时,它到达了底部水平(0.40+/-0.13对3.01+/-0.51,t=2.97,P<0.01),并且它显然在G(0)/G(1)(G(0)/G(1)限制)伴有房间的累积。VEGF和MVD在的表情中等剂量(1mg/kg)组比生理盐水组显著地低(0.63+/-0.74对2.44+/-0.88,P<0.05;15.75+/-3.99对47.44+/-13.41,t=2.80,P<0.01)。与生理盐水组相比,是的中等剂量、低剂量的组(2)O(3)和妈三倍在浆液降低了中高音的层次(61.46+/-9.46,63.75+/-20.40,61.18+/-13.00对108.98+/-29.86,t=2.14,P<0.05),但是没有浆液著名计算机生产厂商诚实
简介:目的评价HBV感染者血清TIMP-2水平对肝纤维化诊断的临床应用价值。方法采用ELISA法测定498例HBV感染者和100例正常对照者血清TIMP-2,采用放射免疫分析法检测HA、PCⅢ、CⅣ和LN,和采用全自动酶法测定丙氨酸氨基转移酶(ALT)。结果与健康正常人比,HBV感染者五项指标均有不同程度的升高,除慢性HBV携带者PCⅢ、CⅣ、LN、ALT和慢性肝炎轻度患者CⅣ水平与对照组比无统计学差异外,其余各组均与对照组比有显著性差异(P〈0.05);从急性肝炎至肝硬化患者血清TIMP-2水平依次进行性升高,其中慢性HBV携带者与急性肝炎患者血清TIMP-2水平分别为78.56±26.23ng/ml和92.65±21.93ng/ml,两者相比差异显著(P〈0.01)。血清TIMP-2与HA、PCⅢ、CⅣ和LN呈显著正相关(P〈0.05),与ALT也呈正相关(P〈0.05)。结论本文检测的肝纤维化指标均可不同程度地反映肝脏的纤维化程度,其中以血清TIMP-2较为可靠和有效。
简介:AIM:Tocomparetwotypesofclassificationofintestinalmetaplasia(IM)ofthestomachandtoexploretheirrelationshiptogastriccarcinoma.METHODS:Forty-sevencasesofgastricIMwereclassifiedintotypeortypeaccordingtomucinhistochemicalstainingandcomparedwithanovelclassificationinwhichthespecimenswereclassifiedintosimpleIM(SIM)oratypicalIMaccordingtopolymorphismintermsofatypicalchangesofthemetaplasticepithelium.Forty-sevenIMandthirty-sevengastriccarcinomasa...
简介:瞄准:在Crohn的疾病(CD)调查单核白血球的函数病人并且相关这与联系疾病的核苷酸绑定oligomerizationdomain-2(NOD2)基因变体。方法:从47个连续地提交的CD病人和9健康供血者的单核白血球与interleukin(IL)是有教养的-4和granulocyte巨噬细胞刺激殖民地的因素(GM-CSF),并且与脂肪的多糖(LPS)或muramyldipeptide(MDP)刺激了,NOD2的通常认为的ligand。结果:我们发现从CD病人的单核白血球区分了在试管内到成熟树枝状的房间(DC),由免疫显型和形态学决定了。NOD2遗传型在所有题目被估计,并且我们观察到在NOD2的不成熟、刺激LPS的DC上的高CD86表示变异CD病人,作为与wtNOD2CD病人和控制相比。由对比,导致到成熟,MDP源于变异NOD2的题目的DC的CD86表示层次比得上正常题目的那些。在耐心房间的文化的IL-12p70的数量与MDP比在在LPS治疗,然而并非术后疗法以后的控制大。结论:我们的结果建议在NOD2基因与变化从病人获得的DC显示高CD86表示描绘的激活的显型,但是当与终端相比区别分阶段执行时,有减少的回答到MDP。我们推测单核白血球的改变的区别可能导致在发炎和单核白血球的杀死的能力之间的不平衡,并且可能与CD的致病相关。