简介:[摘要]目的:探究三阴性乳腺癌(Triple-Negative Breast CancerTNBC)组织H3K4me3、H3K9ac表达与临床病理特征和预后的关系。方法:研究对象选自2020年2月~2021年12月期间,于本院确诊并接受治疗的100例三阴性乳腺癌患者,所有患者均进行病理分型诊断,并进行H3K4me3、H3K9ac免疫组化检验,分析100例患者不同临床病理特征与TNBC组织H3K4me3、H3K9ac高、低表达的关系。结果:对比患者不同年龄及肿瘤直径的TNBC组织H3K4me3、H3K9ac高、低表达,无统计学差异(P>0.05);对比患者T分期、N分期以及分化程度,结果显示(P<0.05)有统计学差异,预后3年H3K4me3、H3K9ac低表达患者生存率显著高于高表达患者,(P<0.05)有差异。结论:分析不同临床病理特征与TNBC组织H3K4me3、H3K9ac高、低表达的关系可见,高表达可提示患者肿瘤侵袭与转移,且与患者预后不良密切相关。
简介:[摘要]目的:探究三阴性乳腺癌(Triple-Negative Breast CancerTNBC)组织H3K4me3、H3K9ac表达与临床病理特征和预后的关系。方法:研究对象选自2020年2月~2021年12月期间,于本院确诊并接受治疗的100例三阴性乳腺癌患者,所有患者均进行病理分型诊断,并进行H3K4me3、H3K9ac免疫组化检验,分析100例患者不同临床病理特征与TNBC组织H3K4me3、H3K9ac高、低表达的关系。结果:对比患者不同年龄及肿瘤直径的TNBC组织H3K4me3、H3K9ac高、低表达,无统计学差异(P>0.05);对比患者T分期、N分期以及分化程度,结果显示(P<0.05)有统计学差异,预后3年H3K4me3、H3K9ac低表达患者生存率显著高于高表达患者,(P<0.05)有差异。结论:分析不同临床病理特征与TNBC组织H3K4me3、H3K9ac高、低表达的关系可见,高表达可提示患者肿瘤侵袭与转移,且与患者预后不良密切相关。
简介:1IntroductionTherareearthcobaltalloyshavethepotentialformakingthemagneticandmagnetoopticalmaterials.Sofar,therareearthcobaltalloyfilmsaresubstantiallyproducedbysputteringorvacuumplating.Ifsuchfilmsarepreparedbyelectrodepositioninstead,productionefficiencywouldbeimprovedandthecompositionofthealloycouldbecontrolled.Becausetheoxidationreductionpotentialsofrareearthelementsareverynegative,organicsolventsmaybeusedaselectrolyticmedia.ElectrodepositionofGdCoandSmCoinorganicsolutionshasbeenreporte...
简介:摘要目的探讨骨巨细胞瘤(giant cell tumor of bone,GCTB)H3.3免疫组织化学阴性病例存在的H3F3A 基因突变类型。方法收集2017年1月至2019年1月就诊于北京积水潭医院的181例GCTB,行光镜观察并结合临床影像学明确诊断。EnVision二步法免疫组织化学H3.3染色检测H3F3A G34W突变蛋白的表达,对免疫组织化学结果阴性的病例采用Sanger测序法检测H3F3A基因的突变类型。结果免疫组织化学H3.3以细胞核阳性反应为阳性标准,181例GCTB:阳性164例,阴性17例,阳性率90.61%。对免疫组织化学结果阴性的17例采用DNA Sanger测序法检测H3F3A基因突变情况。测序结果显示8例存在突变,分别为:3例G34L(glycine 34 to leucine,3/181,1.66%),3例G34V(glycine 34 to valine,3/181,1.66%),2例G34R(glycine 34 to arginine,2/181,1.10%),其余9例均为野生型(glycine 34,9/181,4.97%)。经测序分析证实免疫组织化学H3.3阴性的病例中并无G34W突变。H3.3免疫组织化学结合测序分析,诊断GCTB总体阳性率可达95.03%。结论H3.3免疫组织化学可检测存在H3F3A G34W突变的GCTB,对其他罕见突变类型及野生型不具诊断价值。
简介:Yb3+complexeswithtwonitrilotriaceticacidmoleculeswerepreparedandtheircompositionsweredeterminedasK3[Yb(nta)2(H2O)]*5H2OandNa3[Yb(nta)2]*6H2Obyelementalanalyses.Theirstructureswerecharacterizedbysingle-crystalX-raydiffractionanalyses.IncomplexK3[Yb(nta)2(H2O)]*5H2O,theYbN2O7partformsanine-coordinatemonocappedsquareantiprismaticstructure.IncomplexNa3[Yb(nta)2]*6H2O,theYbN2O6partformsaneight-coordinatesquareantiprismaticstructure.Itcanbeseenthattheoutercations(K+andNa+)greatlyaffectthecoordinationnumberandcoordinatestructurefromtheseresults.
简介:[Co3(1,2-S2C6H4)3(PPh3)3][CoBr3(DMF)].sol(1,sol=CHCl3,O(C2H5)2,H2O)wasobtainedfromthereactionofCoBr(PPh3)3withNa2(S2C6H4)inchloroform.TheCo3coreinthecationof1exhibitsametal-metalbondedisoscelestriangle,inwhichthetwolongerCo-CobondsarebothbridgedbyS2C6H4ligandsontwosidesofthetriangleplanerespectively,whilethebottomshortCo-CobondisbridgedbythethirdbidentateS2C6H4ligand.Aseriesofpolynu-clearcobaltclustercompoundswithphosphine,thiolateand/orsulphurligandswerepreparedbylowoxidationstateCo+withthiolatesinorganicsolvents.Thesetri-,tetra-,hexa-,heptanuclearclustercompounds1-8withvarioustypesofcrystalstructurescanbeviewedasthecondensedpolynuclearcobaltcomplexesthatthecobaltatomframeworkswithsulphurbridgedwerebuiltthroughthesmalltriangularunitsof[Co3S3nL3](n=1,2)withorwithout[CoL](L=PR3,Br,Cl,5-C5H5)fragments.
简介:ThethermodynamicphasestabilityareadiagramsofBCl3-NH3-SiCl4-H2-ArsystemwereplottedviaFactsagesoftwaretopredictthekineticexperimentalresults.Theeffectsofparameters(ie,partialpressureofreactants,depositiontemperatureandtotalpressure)onthedistributionregionsofsolidphaseproductswereanalyzedbasedonthediagrams.Theresultsshowthat:(a)Solidphaseproductsaremainlyaffectedbydepositiontemperature.TheareaofBN+Si3N4phaseincreaseswiththetemperaturerisingfrom650to900℃,anddecreaseswiththetemperaturerisingfrom900to1200℃;(b)Whentemperatureandtotalpressureareconstants,BN+Si3N4phaseexistsatahighpartialpressureofNH3;(c)Theeffectoftotalsystempressureiscorrelatedtodepositiontemperature.Thetemperaturerangingfrom700to900℃underlowtotalpressureistheoptimumconditionforthedeposition.(d)Appropriatekineticparameterscanbedeterminedbasedontheresultsofthermodynamiccalculation.Si–B–Ncoatingisobtainedvialowpressurechemicalvapordeposition.TheanalysisbyX-rayphotoelectronspectroscopyindicatesthatB–NandSi–Narethemainchemicalbondsofthecoating.
简介:Thesolidaddofthefirstprotonatedzincoborophosphate,(H3O)Zn(H2O)2BP2O8·H2O(1),wassoventothermallysyn-thesizedbythereactionofZn(NO3)2·6H2OandH3BO3withH3PO4inamixedsolvent,andstructurallycharacterizedbysingle-ystalX-raydiffractionanalysis.ItcrystallizesinthehexagonalP6122,a=0.9604(4)nm,c=1.5297(6)nm,V=1.2218(8)nm^3,Dc=2.921g/cm^3,Z=6,F(000)=1080,μ=3.495mm^-1.Thestmchwefeaturesthatthetetrahedra-te-trahedrahdlcesinterconnectedbyoctahedraandstronghydro-gembondinteractionsformathree-dimensionalframework.Theprotonatedwatermoleculesarelocatedatuniquepositions.othercharacterizationsbyIRandthermalanalysisarealsode-scribed.