简介:目的总结先天性十二指肠梗阻的临床表现、手术方法和围手术期处理。方法回顾性分析91例年龄1h至4个月的十二指肠梗阻病例,其中先天性肠旋转不良57例,环状胰腺22例,十二指肠膜式闭锁9例,其他型十二指肠闭锁2例,异常索带1例。8例(8.8%)存在2种原因的梗阻。本组行Ladd's术57例,十二指肠前壁菱形吻合术27例,隔膜切除、十二指肠纵切横缝5例,十二指肠端端吻合术1例,索带松解术1例。结果88例治愈,1例合并肠坏死自动出院,1例术后并发坏死性小肠结肠炎、肠穿孔放弃治疗,1例术后发现合并食道闭锁,放弃治疗。结论先天性十二指肠梗阻的主要病因是肠旋转不良、环状胰腺、十二指肠膜式闭锁,早期诊断、合理选择手术方法、避免漏诊、加强围手术期处理是提高治愈率的关键。
简介:目的探讨腹腔镜下改良子宫肌瘤切除术的手术技巧和疗效.方法通过对子宫切口设计、组织分离/剥离器使用、肌瘤营养血管处理等手术技巧和手术器械的改进,行腹腔镜下子宫肌瘤切除术91例.根据术前B超检测,分成肌瘤径线≥70mm组和<70mm组.结果术中共发现肌瘤102个,其中肌壁间肌瘤73个(71.6%).手术时间为(116.1±45.7)min,出血量(81.7±41.7)ml,术后住院时间(8.0±2.8)天,术后最高体温(37.9±0.5)℃.肌瘤径线≥70mm组术中出血量(95.2±42.0)ml,<70mm组(65.6±31.7)ml(t=2.35,P<0.05);两组手术时间分别为(119.1±44.2)min和(112.9±33.4)min,(t=0.69,P>0.05).结论腹腔镜改良子宫肌瘤切除术可缩短手术时间、减少术中出血,即使较大径线的子宫肌瘤也能达到较好的疗效.
简介:Inthepresentpaper,theeffectofBK-91AComputer-aidedAnesthesiaandTreatmentAppara-tusfor61casesofcraniotomywasobserved.AllthepatientswereintracranialtumorsorhemotornaandrandomlydividedintogroupA(31cases)andB(30cases).Thebasicstateofdisease,theap-pliedmedicinesbeforeandafteroperationsandtheacupointselectionrnethodinthetwogroupswerethesamebasically.lngroupABK-91Awasusedandalltheplateelectrodeswerestickedtotheacu-pointsandanenduablestimulationstrengthwasgiven.IngroupB,WQ-10TypeMulti-purposeElectronicAcupointDetectorwasusedtostimulateacupointswithfrequencyof120-150cycles/min.andanenduablestrength.Criteriaforgradingwereaccordingtotheunitednationalstandards:gradeI/A(excellent),gradeI/B(good)andgradeⅡ(failed,referredtothattheusedanestheticsorsedativessurpassedthefixeddosages).
简介:WehavedevelopedandtestedchimericT-cellreceptors(TCR)specificforp185HER2.Intheseexperiments,retroviralvectorsexpressingtheN297orN29ξreceptorswereconstructedinpRET6.AmphotropicviralproducercellswereestablishedintheGALV-basedPG13packagingcellline.Ficollpurifiedhumanperipheralbloodlymphocytes(PBL)werevitallytransducedusinganoptimizedprotocolincorporatingactivationwithimmobilizedanti-CD3/anti-CD28monoclonalantibodies,followedbyviralinfectioninthepresenceoffibronectinfragmentCH296.Transducedcellswereco-culturedwithhumantumorcelllinesthatoverexpress(SK-OV-3)orunderexpress(MCF7)p185HER2toassayforantigenspecificimmuneresponses.BothCD4^+andCD8^+T-cellstransducedwiththeN297orN29ξchTCRdemonstratedHER2-specificantigenresponses,asdeterminedbyreleaseofTh1likecytokines,andcellularcytotoxicityassays.OurresultssupportthefeasibilityofadoptiveimmunothempywithgeneticallymodifiedT-cellsexpressingachTCRspecificforp185HER2.
简介:Wehaveconfirmedefficientanti-tumoractivitiesoftheperipherallymphocytestransducedwithap185HER2-specificchimericT-cellreceptorgenebothinmurineandinhumaninourpreviousstudies.TofurthertestthefeasibilityofchimericT-cellreceptorinabonemarrowtransplantationmodel,wefirst,madetwomurinetumorcelllines:MT901andMCA-205,toexpresshumanp185HER2byretroviralgenetransduction.MurinebonemarrowcellswereretrovirallytransducedtoexpressthechimericT-cellreceptorandgene-modifiedbonemarrowcellsweretransplantedintolethallyirradiatedmouse.Sixmonthsposttransplantation,p185HER2-positivetumorcells:MT-901/HER2orMCA-205/HER2wassubcutaneouslyorintravenouslyinjectedtomakemousemodelssimulatingprimarybreastcancerorpulmonarymetastasis.Theinvivoanti-tumoreffectsweremonitoredbythesizeofthesubcutaneoustumororcountingthetumornodulesinthelungsafterIndiainkstaining.ThesizeofthesubcutaneoustumorwassignificantlyinhibitedandthenumberofpulmonarynodulesweresignificantlydecreasedinmouserecipientstransplantedwithchimericT-cellreceptormodifiedbonemarrowcellscomparedwiththecontrolgroup.Ourresultssuggesttheefficientinvivoanti-tumoractivitiesofchimericT-cellreceptorgenemodifiedbonemarrowcells.
简介:Abstract:Thisstudyinvestigatedtherelationshipbetweenhumanpapillomavirus(HPV)genotypeandexpressionofp53andp21^WAH1.Expressionofp53andp21^WAH1in35casesofcondylomaacuminatumspecimensinfectedbyHPV6/llandHPV16/18werestudiedusingimmunohistochemicalstaining.Allspecimensofthecondylomaacuminatumcasewerepositiveforexpressionofp53andp21^WAH1.Theexpressionofp53incondylomaacuminatuminfectedbyHPV16/18wassignificantlylowerthanthatinspecimensinfectedbyHPV6/ll.However,expressionofp21wAHbetweenthetwogroupswasnotsignificantlydifferent.Expressionofp53incondylomaacuminatumislikelyrelatedtoHPVgenotype,expressionofp21^WAH1wasnotrelatedtoHPVgenotype.
简介:目的探讨p27^kipl、p53蛋白在胃癌中的表达关系和预后意义。方法用免疫组化法同步检测20例胃良性病变标本及80例胃癌组织中pZ7、p53的表达。结果80例胃癌中p27蛋白阳性率为41,25%(33/80),低于胃良性病变标本100%(20/20),p53阳性率在胃癌中为43.75%(35/80),而在胃良性病变标本中为0。胃癌p27阳性组的p53阳性率为66.67%,显著高于p27阴性组(P<0.05),p27与p53呈正相关,p27与预后弱相关,p53与预后密切相关。结论p27、p53相互作用,对胃癌发生发展起重要作用;p27表达愈强,p53表达愈弱,说明预后较好,反之则差,联合检测pZ7、p53可辅助胃癌诊断,估计预后,选择治疗方案。
简介:Objective:Toinvestigatethepost-transcriptionalregulationofp21WAF1/CIP1byp53.Methods:TheMDA-MB-468cellshaveendogenousmutantp53andtheMCF7cellslineshavewtp53.Recombinantp53expressionandp21WAF1/CIP1inductionweredetectedbyWesternblotanalysis.Northernblotanalysiswascarriedouttoexaminewhetherchangesinp21WAF1/CIP1proteinlevelsinMCF7cellstreatedwithAdCMVp53arereflectedatthemRNAlevel.FlowcytometricanalysisofMCF7cellsfollowingoverexpressionofrecombination.Results:Theratioofp53:p21WAF1/CIP1wasbelow1attheearlystagesofAdCMVp53infection,butincreasedto1.6byday3andto9.7byday5post-infection.Asexpected,p21WAF1/CIP1expressionwasnotdetectableinMDA-MB-468cellsdespitethepresenceofhighlevelsofmutantp53protein.TheG1/SratiosinuntreatedcontrolsandAdCMVβgalinfectedMCF7cellswere1.10and1.35,respectively.ByNorthernblotanalyzingthep21WAF1/CIP1:GAPDHratiosatdifferenttimepointsagainsttheratioattimepoint0,amaximum3-foldinductionofp21WAF1/CIP1mRNAexpressionrelativetountreatedcontrolwasobservedonday1post-infection.TheflowcytometricanalysisindicatedthatMCF7cellsinfectedwithAdCMVp53undergoG1arrestatbothtimepointsstudied,withG1/Sratiosrangingfrom5.54atday1to5.65atday7.TheG1/SratiosinuntreatedcontrolsandAdCMVβgalinfectedMCF7cellswere1.10and1.35,respectively.Conclusion:Thisstudydemonstratedthatp53couldregulatep21WAF1/CIP1geneexpressionatboththetranscriptionalandpost-transcriptionallevelsinMCF7cells.Thelattermechanismmaybeinvolvedinorberesponsiblefor,theinductionofcellcyclearrestbytranscription-defectivemutantsofp53.