简介：<正>Usingsubtractioncloning,weidentifiedthehumanN-MycDownstream-RegulatedGene-2(hNDRG2),locatedat14q11.2,asacandidatetumorsuppressorgene.Semi-quantitativeRT-PCRshowedthattheexpressionofhNDRG2in15of27(56%)humanGBMtissuesandall6humanglioblastomacelllineswassignificantlylowerthanthatinthenormalbrain.TheexpressionofhNDRG2alsowasevaluatedin60lung-carcinomapatients.17of26casesofsquamouscarcinomaand4of11casesofsmallcelllungcancerdisplayed
简介：ReactionsofCuSCNwithtetramethylthiuramdisulfideinCH3CNinthepresenceofstyreneandN,N,N',N',N'-pentamethyldiethylenetriaminegaverisetoanewcopper(Ⅰ)complexofN,N'-dimethyldithio-cabamate{[Cu(S2CNMe2)]2}n.ThetitlecompoundcrystallizedinthetriclinicP-1spacegroupwithlatticeparametersα=0.7610(4)nm,b=0.8911(4)nm,c=0.9268(5)nm,α=68.66(1)°,β=83.88(2)°,γ=79.31(2)°,V=0.5748(5)nm^3,Z=2.Thecompoundhasaunique1DchainstructurecomposedofCuSCSCuSCSeight-memberedringsandapairofCu-Sbonds,thestructureofwhichhasbeendeterminedbysingle-crystalX-raycrystallography.Theisolationofthiscompoundmayprovidesomehelpfulinformationforthecauseoftheinductionperiodsofthereverseatomtransferradicalpolymerization.
简介：Twonewdicyanamidecoordinationpolymers,{Mn(dmpz)[N(CN)2]2}2(1)and{Cu(dmpz)[N(CN)2]2}2(2)(dmpz=3,5-dimethylpyrazole),weresynthesizedandcharacterizedbysinglecrystalX-raydiffractionanalysisandIRspectroscopy.In1and2themetalionshavetwodifferentcoordinationmodes,whereoneiscoordinatedtofourdicyanamideanionsandtwomonodentatedmpzmoleculestoformaslightlydistortedoctahedralgeometry,whiletheotheradoptsoctahedralgeometry,surroundedbyfournitrileNatomsandtwoamideNatomsofthedicyanamideanions.Bothcomplexescontaintwoalternatingchainsthatareparalleltoeachother.
简介：目的 研究严重烧伤后大鼠心肌细胞中c-fos、c-mycmRNA和蛋白的动态表达及意义。 方法 复制Wistar大鼠30%体表面积Ⅲ度烧伤模型，设烧伤组、补液组、维拉帕米治疗组和对照组，烧伤后在不同时相点处死动物取材。免疫组化方法检测c-fos、c-myc蛋白的表达，原位杂交法检测c-fos、c-mycmRNA的表达。 结果 各实验组c-fos、c-myc蛋白及mRNA表达随伤后时间推移逐渐增强达到峰值后下降。组间比较，烧伤组、补液组、维拉帕米组c-fos、c-myc表达呈依次降低，差异有显著性意义。 结论 严重烧伤可诱导心肌内早期反应基因c-fos、c-myc的表达。不论是烧伤组、补液组还是维拉帕米组，c-fos、c-mycmRNA水平及蛋白水平都有不同程度的表达。其表达不同于心肌梗死和压力超负荷病理状态下基因表达特点，提示三者间可能有着不同的信号转导机制和调节机制。
简介：目的研究c—erbB—2和c—myc癌基因在胃癌组织中扩增的意义。方法应用非放射性原位杂交技术检测81例胃癌标本中c—erbB—2和c—myc的扩增情况。结果C—erbB—2和c—myc在胃癌中的扩增率分别为50．6％和67．9％。c—erbB—2基因与胃癌组织分化程度、浸润深度及淋巴结转移有关（P〈0．05），分化程度越差、浸润深度越深、淋巴结有转移，c—erbB—2基因表达率越高，而C—myc癌基因与胃癌组织分化程度、浸润深度及淋巴结转移无关。两基因的扩增具有显著的相关性（x^2=7．26，P〈0．01）。结论c—erbB—2和c—myc扩增是胃癌发生过程中的一个重要的生物学因素，且两者具有较好的协同作用。
简介：Aseriesofaromaticimineswerereducedtocorrespondingaminesinexcellentyieldsby2-phenyl-N,N-dimethylbenzimidazoline(PDMBI)photochemicallyinthepresenceofmagnesiumperchloride(Mg(ClO4)2).AMg2+mediatedphotoinducedelectrontransfermechanismwasproposed.
简介：NineteenL-N-2-hydroxyethylaminoacidsandL-N,N-bis(2-hydroxyethyl)aminoacidswerepreparedfromthereactionofchlorohydrinwithL-alanine,L-valine,L-leucine,L-isoleucine,L-phenylalanine,L-serine,L-thrcunine,L-glutamicacid,L-asparticacidandglycine.L-N,N,N’,N’-tetra(2-hydroxyethyl)cystinewaspreparedbythereactionofL-cystinewithchlorohydrin.
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![Synthesis and Crystal Structure of <b style='color:red'>N</b>,<b style='color:red'>N</b>＇-Dimethyldithio-arbamato-Copper（Ⅰ） Polymer {[Cu（Me<b style='color:red'>2</b>dtc）]<b style='color:red'>2</b>}<b style='color:red'>n</b>](/image/thesis4 "Synthesis and Crystal Structure of <b style='color:red'>N</b>,<b style='color:red'>N</b>＇-Dimethyldithio-arbamato-Copper（Ⅰ） Polymer {[Cu（Me<b style='color:red'>2</b>dtc）]<b style='color:red'>2</b>}<b style='color:red'>n</b>")
![Two New Dicyanamide Coordination Polymers with Alternating Parallel Chains： {Mn（dmpz）[<b style='color:red'>N</b>（CN）<b style='color:red'>2</b>]<b style='color:red'>2</b>}<b style='color:red'>2</b> and {Cu（dmpz）[<b style='color:red'>N</b>（CN）<b style='color:red'>2</b>]<b style='color:red'>2</b>}<b style='color:red'>2</b>](/image/thesis6 "Two New Dicyanamide Coordination Polymers with Alternating Parallel Chains： {Mn（dmpz）[<b style='color:red'>N</b>（CN）<b style='color:red'>2</b>]<b style='color:red'>2</b>}<b style='color:red'>2</b> and {Cu（dmpz）[<b style='color:red'>N</b>（CN）<b style='color:red'>2</b>]<b style='color:red'>2</b>}<b style='color:red'>2</b>")
