简介：Objective:Tostudytheexpressionofvascularendothelialgrowthfactor(VEGF)andmicrovesseldensity(MVD)inesophagealsquamouscellcarcinoma(ESCC)andclarifytheassociationofVEGFexpressionwiththeangiogenesisandprognosticvalueofthisdisease.Methods:Eighty-twocaseswithprimaryESCCtreatedwithradicaloperationinDepartmentofSurgeryfromJan1981throughMay1994wereenrolled.VEGFexpressionandMVDvaluewereexaminedbyimmunohistochemicalstaining,thestreptavidin-biotinperoxidasecomplexmethod(SPmethod),usinganti-VEGFpolyclonalantibodyandanti-Factor-VIIIantibody,respectively.WealsoanalyzedtherelationshipbetweenVEGFexpressionandMVDvalueandpostoperativesurvivalrateofpatients.Results:Ofthe82cases,63.4%casesshowedpositiveforVEGFintumorcellsandthemedianofMVDintumorwas37(9-150)·mm-2.TherewasaclosecorrelationbetweenMVDandVEGF(P=0.001).The5-yearsurvivalrateofpatientswithlowandhighMVDwas34.1%and12.2%,respectively.The5-yearsurvivalratewas46.7%inpatientswithVEGF-negativetumorand11.5%inpatientswithVEGF-positivetumor.Thesedifferenceswerestatisticallysignificant(P=0.017andP<0.001,respectively).Conclusion:InESCC,angiogenesisismediatedmainlybyVEGFandVEGFmaybeassociatedwithtumorprogressionandincreasedmalignancyviaangiogenesis.

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简介：Objective:Noninvasivediffusion-weightedmagneticresonanceimaging(DWI)isawell-studiedMRimagingtechniqueforquantifyingwaterdiffusionespeciallyintumorarea.Thecorrelationbetweenapparentdiffusioncoefficient(ADC)valueandapoptosisorproliferationisnotclearbynow.ThisstudyaimedtoinvestigatewhetherDWI-ADCvaluecouldbeusedasanimagingmarkerrelatedwithpathologicindexesoftumors.Methods:Atotalof30Balb/cmicewithHT29colorectalcarcinomaweresubjectedtoDWIandhistologicanalysis.ThepercentageofADCchangesandtheapoptoticandproliferatingindexeswerecalculatedatpredefinedtimepoints.Kolmogorov-SmirnovdistanceswereconsideredtodeterminewhetherthepercentageofADCchanges,andtheapoptoticandproliferatingindexeswerenormallydistributed.Anindependent-samplest-testwasusedtoanalyzethedifferencebetweenapoptoticandproliferatingindexesinthetwogroups.Results:Therewasastatisticallysignificantdifferenceinproliferatingindexbetweentheradiotherapyandcontrolgroups(meanproliferatingindex:49.27%vs.83.09%),andtherewasastatisticallysignificantdifferenceinapoptoticindexbetweenthetwogroups(meanapoptoticindex:37.7%vs.2.71%).AsignificantpositivecorrelationwasfoundbetweenthepercentageofADCchangesoftheviabletissueandapoptoticindex.Pearson'scorrelationcoefficientwas0.655(P=0.015).AsignificantnegativecorrelationwasfoundbetweenthepercentageofADCchangesoftheviabletissueandki-67proliferationindex.Pearson'scorrelationcoefficientwas0.734(P<0.001).Conclusions:OurresultssuggestthatADCvaluemaybeusedinmeasurementofcellapoptoticandproliferatingindexesincolorectalcarcinoma.

简介：Objective:Chemotherapyisthestandardtreatmentforsmall-celllungcancer(SCLC),andleukopeniaisacommonsideeffect.Thisstudyassesseswhetherchemotherapy-inducedleukopeniaisapredictorofefficacyandwhetheritisassociatedwiththesurvivalofSCLCpatients.Methods:Aretrospectiveanalysiswasconductedondatafrom445patientswithSCLCwhoreceivedstandardchemotherapyfor4to10cycles.TheWorldHealthOrganizationgradingsystemclassifiesleukopeniaduringchemotherapyasfollows:absent(grade0),mild(grades1and2),orsevere(grades3and4).Theprimaryendpointisoverallsurvival(OS).Results:Theassociationbetweenchemotherapy-inducedleukopeniaandOSwasassessed.AccordingtoamultivariateCoxmodelwithtime-varyingcovariates,thehazardratioofdeathwassignificantlyloweramongpatientswithmildleukopeniathanamongpatientswithsevereleukopeniaat0.687(0.506to0.943)and1.414(1.147to1.744),respectively.Themediansurvivalwas13months(95%CI:11to15months)forpatientswhodidnotexperienceleukopenia,17months(95%CI:14to18months)forthosewithmildleukopenia,and14months(95%CI:13to16months)forthosewithsevereleukopenia(absentvs.mildvs.severeleukopenia,P=0.047).Conclusion:LeukopeniaduringchemotherapyisassociatedwiththesurvivalofSCLCpatients.Mildleukopeniaisstronglyassociatedwithlongersurvivaltime.

简介：Neurochirurgie,2008Jun21.INTRODUCTION:Neoangiogenesisisacriticalfeaturethatcandifferentiatehigh-gradefromlow-gradeglioma.Conven-tionalMRimagingdoesnotassessthishistologicalfeatureaccurately.Thegoalofthisstudywastoevaluatethegaininrel-ativecerebralbloodvolumemeasurementusingperfusionMRIinthemanagementofcerebralgliomas.MATERIALSAND

简介：Objective:Patientswithheadandneckcanceroftensufferfrommalnutrition.Thisstudyaimstoinvestigatetheinfluenceofbodymassindex(BMI)ontheprognosisoflaryngealsquamouscellcarcinoma(LSCC).Methods:Atotalof473patientswithLSCCinitiallytreatedatSunYat-senUniversityCancerCenterbetweenJanuary2005andJuly2009wereretrospectivelyreviewed.SurvivalanalysiswasperformedbytheKaplan-MeiermethodandCoxregressionmodel.Results:LowBMIbeforetreatmentwassignificantlyassociatedwithpooroverallsurvivalinpatientswithLSCC(P<0.001).BMIwasanindependentprognosticfactorforpatientswithLSCC.Conclusion:LeannessbeforetreatmentwasassociatedwithpoorprognosisinpatientswithLSCC.GoodnutritionalstatusisfavorabletoimprovesurvivalinpatientswithLSCC.

简介：客观：为了学习表达式和apoptosis的临床的价值，在乳癌控制基因bcl-2和bax。方法：在在1996在我们的医院里从操作获得的41乳癌的蛋白质bax和bcl-2与正常的胸纸巾用ABCimmunohistochemical污点试金并且与10个盒子相比被检测。结果：在正常的胸组织的bax的积极的率是90%并且在乳癌是59%，与他们之间的重要统计差别(P<0.05)，但是在bcl-2没有统计差别蛋白质表示。在41乳癌之中，有淋巴节点转移(21个盒子)的组有显然低的bax表示(43%)和高bcl-2表示(76%)，给没有淋巴节点转移的组显示出重要差别(P<0.05)。结论：bcl-2的antiapoptosis功能是比在乳癌的bax强壮的。蛋白质bax和bcl-2试金可能在理解乳癌的生物行为是有用的。

简介：Objective:TodetecttheeffectofarsenictrioxideorATRAonAPLcellsorHL-60cellsandtoinvestigatethemechanismofthehyperleukocytosisanddetectthecrossresistancebetweenATRAandarsenictrioxide.Methods:Thenumberofpromyelocytesormorematuredgranulocyteswerecountedbyregularmethod,MTTtestwasusedtomeasuretheproliferationofHL-60cellsorAPLcells,flowcytometryanalysistomeasuretheapoptosis,NBTmethodtodetectthedifferentiationofHL-60cellsorAPLcells.Results:TheproliferationofprimaryAPLcellsorHL-60cellscouldbeinhibitedinvitrobyeitherarsenictrioxideorATRA,whichcouldinduceobviousapoptosisorobviousdifferentiationofprimaryAPLcellsorHL-60cells.InhibitionofproliferationorapoptosisofATRAresistantHL-60cellswereachievedbyexposuretoarsenictrioxideinvitro.Ontheotherhand,theresultsofinvivotreatmentshowedthatarsenictrioxidealsoinduceofhyperleukocytosis.Conclusion:TheresultsindicatedthatthehyperleukocytosisinducedbyATRAisnotcontributedtothemechanismofmoredifferentiationthanapoptosis,therewasnotcrossresistancebetweenATRAandarsenictrioxide.

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简介：Objective:Toclarifytheprognosticvalueofpost-treatment18F-fluorodeoxyglucose(FDG)positronemissiontomography(PET)/computedtomography(CT)inpatientswithadvancedheadandnecksquamouscellcarcinoma(HNSCC)aftercombinedintra-arterialchemotherapyandradiotherapy(IACR).Methods:Thirty-sixpatientswithHNSCCwhounderwentIACRwererecruited.TheperiodfromtheendofIACRtothelastpost-treatment18F-FDGPET/CTexaminationwas8-12weeks.Bothpatient-basedandlesion-basedanalyseswereusedtoevaluatethePET/CTimages.Forlesion-basedanalysis,36regions(12lesionsofrecurrencesand24scarsatprimarysites)wereselected.TheKaplan-Meiermethodwasusedtoassesstheoverallsurvival(OS)stratifiedby18F-FDGuptakeorvisualinterpretationresults.Results:TwelvepatientswithrecurrencewereidentifiedbysixmonthsafterIACR.Thesensitivityandspecificityinthepatient-basedanalysiswere67%(8/12)and88%(21/24),respectively.ThemeanOSwasestimatedtobe12.1months(95%CI,6.3-18.0months)forthehighermaximumstandardizeduptakevalue(SUVmax)group(n=7)and44.6months(95%CI,39.9-49.3months)forthelowerSUVmaxgroup(n=29).OSinthehigherSUVmaxgroup(cut-offpoint,6.1)orpositivevisualinterpretationgroupwassignificantlyshorterthanthatinthelowerSUVmaxornegativevisualinterpretationgroup(P<0.001andP<0.05,respectively).Conclusions:TheSUVmaxandvisualinterpretationofHNSCConpost-IACR18F-FDGPET/CTcanprovideprognosticsurvivalestimates.

简介：Objective:Ameta-analysiswasperformedtoaugmenttheinsufficientdataontheimpactofmutativeEGFRdownstreamphosphatidylinositol-3-kinase(PI3K)andmitogen-activatedproteinkinase(MAPK)pathwaysontheclinicalefficiencyofepidermalgrowthfactorreceptortyrosinekinaseinhibitor(EGFR-TKI)treatmentofnon-smallcelllungcancer(NSCLC)patients.Methods:NetworkdatabaseswereexploredinApril,2015.PapersthatinvestigatedtheclinicaloutcomesofNSCLCpatientstreatedwithEGFR-TKIsaccordingtothestatusofK-rasand/orPIK3CAgenemutationwereincluded.Aquantitativemeta-analysiswasconductedusingstandardstatisticalmethods.Oddsratios(ORs)forobjectiveresponserate(ORR)andhazardratios(HRs)forprogression-freesurvival(PFS)andoverallsurvival(OS)werecalculated.Results:MutationinK-rassignificantlypredictedpoorORR[OR=0.22;95%confidenceinterval(CI),0.13-0.35],shorterPFS(HR=1.56;95%CI,1.27-1.92),andshorterOS(HR=1.59;95%CI,1.33-1.91)inNSCLCpatientstreatedwithEGFR-TKIs.MutantPIK3CAsignificantlypredictedshorterOS(HR=1.83;95%CI,1.05-3.20),showedpoorORR(OR=0.70;95%CI,0.22-2.18),andshorterPFS(HR=1.79;95%CI,0.91-3.53)inNSCLCpatientstreatedwithEGFR-TKIs.Conclusion:K-rasmutationadverselyaffectedtheclinicalresponseandsurvivalofNSCLCpatientstreatedwithEGFRTKIs.PIK3CAmutationshowedsimilartrends.InadditiontoEGFR,addingK-rasandPIK3CAasroutinegenebiomarkersinclinicalgeneticanalysisisvaluabletooptimizetheeffectivenessofEGFR-TKIregimensandidentifyoptimalpatientswhowillbenefitfromEGFR-TKItreatment.