简介：Acrucialfeatureofnanoparticles,suchasliposomes,magneticnanoparticles,quantumdots,metallicnanoparticles,silicananoparticles,polymersomesanddendrimersetc.,istheirhigheraccumulationinthetumorthaninnormaltissues1-3.Variousnanoparticleshavebeenintensivelyusedasvehiclestodeliverchemotherapeutic

简介：Objective:Curativegastriccancersurgeryentailsremovaloftheprimarytumorwithadequatemarginsincludingregionallymphnodes.Europeanrandomizedcontrolledtrialswithrecruitmentinthe1990'sreportedincreasedmorbidityandmortalityforD2comparedtoD1.Here,weexaminedtheextentoflymphadenectomyduringgastriccancersurgeryandtheassociatedriskforpostoperativecomplicationsandmortalityusingthestrengthsofapopulation-basedstudy.Methods:AprospectivenationwidestudyconductedwithintheNationalRegisterofEsophagealandGastricCancer.AllpatientsinSwedenfrom2006to2013whounderwentgastriccancerresectionswithcurativeintentwereincluded.PatientswerecategorizedintoD0,D1,orD1+/D2,andanalyzedregardingpostoperativemorbidityandmortalityusingmultivariablelogisticregression.Results:Intotal,349(31.7%)patientshadaD0,494(44.9%)D1,and258(23.4%)D1+/D2lymphadenectomy.The30-dpostoperativecomplicationrateswere25.5%,25.1%and32.2%(D0,D1andD1+/D2,respectively),and90-dmortalityrateswere8.3%,4.3%and5.8%.Afteradjustmentforconfounders,inmultivariableanalysis,therewerenosignificantdifferencesinriskforpostoperativecomplicationsbetweenthelymphadenectomygroups.For90-dmortality,therewasalowerriskforD1vs.D0.Conclusions:ThemajorityofgastriccancerresectionsinSwedenhaveincludedonlyalimitedlymphadenectomy(D0andD1).Moreextensivelymphadenectomy(D1+/D2)seemedtohavenoimpactonpostoperativemorbidityormortality.

简介：目的：探讨人类微小RNA-141（has-miR-141）在子宫内膜癌患者血清中的表达及其临床意义。方法收集55例子宫内膜癌患者术前24h内的血清标本，以同期收治的12例子宫肌瘤患者术前24h内的血清和5例健康志愿者的血清作为对照组，应用实时荧光定量PCR技术检测子宫内膜癌患者和对照组血清中has-miR-141的表达水平，并分析has-miR-141表达水平与55例子宫内膜癌患者的临床病理危险因素的关系。结果子宫内膜癌患者的血清has-miR-141的表达水平（2.6295±2.038）高于对照组的（1.561±0.695），差异有统计学意义（P﹤0.05）。子宫内膜癌患者血清中has-miR-141表达与组织病理分型、淋巴结转移和临床分期诊断有关（P﹤0.05），非子宫内膜样癌、淋巴结转移、Ⅲ期＋Ⅳ期患者has-miR-141的表达水平高于子宫内膜样癌、无淋巴结转移、Ⅰ期＋Ⅱ期患者。不同组织病理分级、年龄、CA125值患者血清中has-miR-141的表达水平比较，差异无统计学意义（P﹥0.05）。结论子宫内膜癌患者血清中has-miR-141呈高表达水平，且与淋巴结转移、病理分型及临床分期有关。has-miR-141有可能成为一种诊断子宫内膜癌的新型标志物，同时有可能作为进展期子宫内膜癌的诊断依据，从而为子宫内膜癌的诊断及治疗提供有效帮助。