简介:Thepresentstudywasdesignedtodevelopandvalidateasensitiveandreliableultrahighperformanceliquidchromatographycoupledwithquadrupoletime-of-flightmassspectrometry(UPLC-QTOF/MS)methodtoseparateandidentifythechemicalconstituentsofQixueShuangbuTincture(QXSBT),aclassictraditionalChinesemedicine(TCM)prescription.UndertheoptimizedUPLCandQTOF/MSconditions,56componentsinQXSBT,includingchalcones,triterpenoids,protopanaxatriol,flavonesandflavanoneswereidentifiedandtentativelycharacterizedwithinarunningtimeof42min.Thecomponentswereidentifiedbycomparingtheretentiontimes,accuratemass,andmassspectrometricfragmentationcharacteristicions,andmatchingempiricalmolecularformulawiththatofthepublishedcompounds.Inconclusion,theestablishedUPLC-QTOF/MSmethodwasreliableforarapididentificationofcomplicatedcomponentsintheTCMprescriptions.
简介:obtainaninitialoverviewofgenediversityandexpressionpatterninporcinethymus,11,712ESTs(ExpressedSequenceTags)from100-day-oldporcinethymus(FTY)weresequencedand7,071cleanedESTswereusedforgeneexpressionanalysis.ClusteredbythePHRAPprogram,959contigsand3,074singletswereobtained.Blastsearchshowedthat806contigsand1,669singlets(totally5,442ESTs)hadhomologuesinGenBankand1,629ESTswerenovel.AccordingtotheGeneOntologyclassification,36.99%ESTswerecatalogedintothegeneexpressiongroup,indicatingthatalthoughthefunctionalgene(18.78%indefensegroup)ofthymusisexpressedinacertaindegree,the100-day-oldporcinethymusstillexistsinadevelopmentalstage.Comparativeanalysisshowedthatthegeneexpressionpatternofthe100-day-oldporcinethymusissimilartothatofthehumaninfantthymus.
简介:Aresidual-stressprofilealongthethicknessofanaluminumalloysheetisdeterminedbylaser-ultrasonictechnique.SurfaceacousticwavesaregeneratedbyaNd:YAGpulselaseranddetectedbyaHeterodyneinterferometeronalateralfreesurfaceofthesheet.Thedistributionofresidualstressisdeterminedbymeasuringtherelativevariationofthewavevelocitiesatdifferentlocationofthesamplealongitsthickness.Thistechniqueisvalidatedbythreedifferentresidualstressprofilesobtainedexperimentally.
简介:Basedontherainbow-ladderapproximationoftheDyson-Schwingerequationsandtheassumptionoftheanalytieityofthefermion-bosonvertexintheneighborhoodofzerochemicalpotential(μ=0)andneglectingtheμ-dependenceofthedressedgluonpropagator,weapplythemethodin[Phys.Rev.C71(2005)015205]ofstudyingthedressedquarkpropagatoratfinitechemicalpotentialtoprovethatthegeneralfermion-bosonvertexatfiniteμcanalsobeobtainedfromtheoneatμ=0byasimpleshiftofvariables.Usingthisresultweextendtheresultsof[Phys.Lett.B420(1998)267]tothesituationoffiniteehemicalpotentialandshowthatundertheapproximationswehavetaken,theGe11-MannOakesRennerrelationalsoholdsatfinitechemicalpotential.
简介:Hypericin是主要从属于节Euhypericum和凯勒的分类的Campylosporus的类Hypericum的工厂提取的最重要的phenanthoperylenequinones之一。普遍注意到抗病毒并且hypericin的反肿瘤性质刺激了化学合成的调查和这唯一的混合物的生合成。然而,合成策略为器官、生物的化学家是挑战性的。在这评论,在在过去的十年的全部的合成,半合成,和生合成的特定的重要进展被总结。
简介:二维的胶化电气泳动(2-DE)由帮助矩阵的激光解吸附作用电离time-of-flight/time-of-flight团spectrometry(MS)列在后面分析习惯于hemolymphproteomic蚕介绍的charaterize,Bombyxmori。在天4(V4)并且5(V5)第五(期末考试)中间形态当幼虫在快成长的阶段时,我们在代表有30kDa的近似分子的重量(MW)的蛋白质的点发现了戏剧的变化。这些点,四30K蛋白质是高度起来调整的,暗示有B的生长和发展的一个靠近的协会。mori幼虫。为了理解分子的基础和内在的机制,在开发和变形包含了,在V5的整个hemolymph的proteome与LTQ-Orbitrap用猎枪液体层析双人脚踏车团spectrometry被分析。没有任何假发现点击,108蛋白质的一个总数被识别。这些蛋白质涉及许多细胞的功能,包括新陈代谢,发展,滋养的运输和储备,并且防卫反应。基因本体论分析证明3.4%这些蛋白质举办了滋养的水库活动,5.7%涉及对刺激的反应。小径分析表明有普通目标的22蛋白质涉及象免疫,区别,增长和变形那样的各种各样的细胞的过程。这些结果建议象在hemolymph的30K蛋白质那样的一些关键因素在B起重要作用。mori生长和开发。而且,hemolymph的多重函数可以被一个复杂生物网络操作。
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简介:蛋白质领域被保存,在相互作用起一个重要作用在之中的机能上地独立的结构联系了蛋白质。域域相互作用最近被用来预言蛋白质蛋白质相互作用(PPI)。一般来说,一双领域的相互作用概率用训练得分功能被获得。令人满意阀值,当“交往”,带那些领域的蛋白质对被考虑。在这研究,蛋白质的签名内容被利用在Saccharomycescerevisiae,Caenorhabditiselegin,和人预言PPI对现代人。蛋白质签名模式的类似被获得,PPI预言基于二进制类似得分函数被拉。结果证明由建议途径的预言的真积极的率用最大的可能性评价方法比那高是约32%,导致在与一个测试集合相比操作的接收装置下面的区域的22%增加什么时候特征(巨鸟)曲线。当包含一个或二签名的蛋白质被移开时,预言的PPI对的敏感显著地增加了。预言的PPI对是平均,11更多半预定在0.95的信心水平比随机的选择交往,并且平均,4比那些由也预言更好预定种系发生的介绍或基因表达介绍。
简介:在从南船座介绍的situ观察,与卫星相结合的漂流检索了SST,雨率被用来通过2012年8月29日从20调查上面的海洋回答到台风Bolaven。在台风Bolaven的经过以后,加深混合的层深度(MLD),并且冷却混合的层温度(MLT)被观察。在混合的层咸度(MLS)的变化显示出因为在混合的层的导致台风的咸度变化被降水,蒸发,狂暴的混合和thermocline水的upwelling影响,增加并且减少的一个相等的数字。加深MLD并且冷却MLT显示了重要向右偏爱,而MLS被添到台风轨道的左边并且在另外的方面上增加了。铱漂流观察的集中的温度和咸度侧面使在台风的经过以后在上面的海洋看反应过程可能。冷却在近表面并且温暖在表面下被在暴风雨的开发阶段期间定位到气旋的磁道的左边的二铱漂流观察,在远处,最大值的半径相对台风中心弯屈。在混合的层的底和thermocline的顶的水咸度增加是那些二漂流观察的最明显的变化。在轨道并且在台风中心附近的右边上当台风被加强时,从海表面的重要冷却到200的深度
简介:Theprofilingmethodisthefirstmethodtoselectinmeasuringtheremotesensingreflectance.InthelightofthecharacteristicsofChina'scoastalwaters,wedevelopanewmethodtocompensatetheenvironment'seffectswiththedownwellingirradiance'sprofileandtoestimatetheunderwaterremote-sensingreflectancerrs(λ).Theresultindicatesthattherelativedeviationofrepetitiousrrs(λ)inonestationisaround10%.
简介:Theimplementationofmolecularprofilingtechnologiesinoncologydeepensourknowledgeforthemolecularlandscapesofcancerdiagnoses,identifyingaberrationsthatcouldbelinkedwithspecifictherapeuticvulnerabilities.Inparticular,thereisanincreasinglistofmolecularlytargetedanticanceragentsundergoingclinicaldevelopmentthataimtoblockspecificmolecularaberrations.Thisleadstoaparadigmshift,withanincreasinglistofspecificaberrationsdictatingthetreatmentofpatientswithcancer.Thisparadigmshiftimpactsthefieldofclinicaltrials,sincetheclassicalapproachofhavingclinico-pathologicaldiseasecharacteristicsdictatingthepatients'enrolmentinoncologytrialsshiftstowardstheimplementationofmolecularprofilingasprescreeningstep.Inordertofacilitatethesuccessfulclinicaldevelopmentofthesenewanticancerdrugswithinspecificmolecularnichesofcancerdiagnoses,therehavebeendevelopednew,innovativetrialdesignsthatcouldbeclassifiedasfollows:i)longitudinalcohortstudiesthatimplement(ornot)'nested'downstreamtrials,2)studiesthatassesstheclinicalutilityofmolecularprofiling,3)'master'protocoltrials,iv)'basket'trials,v)trialsfollowinganadaptivedesign.Inthepresentarticle,wereviewtheseinnovativestudydesigns,providingrepresentativeexamplesfromeachcategoryandwediscussthechallengesthatstillneedtobeaddressedinthiseraofnewgenerationoncologytrialsimplementingmolecularprofiling.Emphasisisputonthefieldofbreastcancerclinicaltrials.
简介:FormerlyNo.713Factory,HuaxingMetallur-gical&ChemicalCo.underChinaNuclearIndustryGeneralCorporationwasestablishedin1958andputintooperationin1962.ThecorporationislocatedinShangrao,JiangxiProvinceandwasoriginallydesignedtoproducerawmaterialsformillitaryuse.Inkeepingupwiththepaceofthedevelopmentofthenationaleconomy,