简介：周末去看望六十多岁的老恩师．发现老师走路有点一瘸一拐的。原来老师不久前刚做了腿部手术．是之前运动的老伤了。“1．bitthebulletandhadanoperation．”老师说这回就没事啦。可是我却被吓坏了：咬子弹!这个手术太可怕了吧!bitthebullet在这里到底是什么意思呢7

简介：1销路很好我的说法：我的爱车快被淘汰了，打算买辆新的。可是买哪一款呢？于是我向公司的行家大李请教。大李给我推荐了一款新车。我早就听说过这款新车，不过还有点犹豫。”放心吧,这款车不错。

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简介：摘要目的探讨小分子干扰RNA（siRNA）对人食管癌EC9706细胞蛋白激酶CK2β基因表达的影响。方法体外转录合成CK2βsiRNA，转染EC9706细胞，采用RT-PCR及免疫细胞化学技术检测转染前后CK2β的表达水平。结果各实验组CK2β表达量均较对照组降低（p<0.05）。结论特异性siRNA能有效抑制EC9706细胞中CK2β基因的表达。

简介：Objective:Squamousesophagealcarcinomaishighlyprevalentindevelopingcountries,especiallyinChina.TuBeiMu(TBM),atraditionalfolkmedicine,hasbeenusedtotreatesophagealsquamouscellcarcinoma(ESCC)foralongterm.tubeimosideI(TBMS1)isthemaincomponentofTBM,exhibitinggreatanticancerpotential.Inthisstudy,weinvestigatedthemechanismofTBMS1cytotoxiceffectonEC109cells.Methods:Comparativenuclearproteomicapproachwasappliedinthecurrentstudyandweidentifiedseveralalteredproteinspots.Furtherbiochemicalstudieswerecarriedouttodetectthemitochondrialmembranepotential,cellcycleandcorrespondingproteins’expressionandlocation.Results:SubcellularproteomicstudyinthenucleusfromEC109cellsrevealedthatalteredproteinswereassociatedwithmitochondrialfunctionandcellproliferation.FurtherbiochemicalstudiesshowedthatTBMS1-inducedmoleculareventswererelatedtomitochondria-inducedintrinsicapoptosisandP21-cyclinB1/cdc2complex-relatedG2/Mcellcyclearrest.Conclusions:ConsideringtheconventionalapplicationofTBMinesophagealcancer,TBMS1thereforemayhaveagreatpotentialasachemotherapeuticdrugcandidateforESCC.