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返老还童非神话?动物老化速度或可从基因上控制
...组,正在对微小的线虫展开研究。他们发现,一种被称为ELT-3的生物学开关能够启动数百个涉及老化过程的基因,而当线虫变老时,ELT-3变得更加丰富。 科学家们尝试人为使这些线虫变老。他们让线虫受到热和辐射等压力,但...
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动物老化速度或可从基因上控制
...组,正在对微小的线虫展开研究。他们发现,一种被称为ELT-3的生物学开关能够启动数百个涉及老化过程的基因,而当线虫变老时,ELT-3变得更加丰富。科学家们尝试人为使这些线虫变老。他们让线虫受到热和辐射等压力,但是...
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多发血管瘤合并凝血功能异常
...L,PT19.2s,APTT46.7s,FBG142mg/dl,3P实验弱(+),FDP40μg/dl,ELT90分,D-Dimer2mg/dl,考虑DIC亚临床期,持续加压包扎,补充红细胞、新鲜血浆及纤维蛋白原、凝血酶原,1个月后切口渗血停止,皮下瘀斑消退,但出现表面皮肤坏死,创...
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现代英汉翻译操作
...系教授。1987年赴英国利兹大学研究,为访问学者,从事ELT研究,其间所写的论文后在美国的有关杂志上发表。80年代末开始潜心研究现代英语和翻译,已出版的专著有:《现代英语表达与汉语对应》,《最新英语翻译疑难详解》...
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浅谈血栓与止血检测在临床的应用
...PC和PS测定;(2)纤溶因子的测定:优球蛋白溶解时间(ELT)、纤溶酶原测定、纤溶酶测定;(3)循环抗凝物质的检查:血浆肝素浓度测定和游离肝素时间测定。3.2肝病并发DIC的应用3.2.1一般实验PT一般在24~31s;APTT一般为64~86s...
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新方法助探宇宙生命神秘示踪因子或成标志物
...探测到了一氧化碳的信号。新一代欧洲特大望远镜,即E-ELT,其观测能力是甚大阵列的25倍,如果类地行星在宇宙中非常普遍,或者就在附近,我们能检测到氧分子的存在。科学家认为,新型系外生命标志物望远镜将在未来25年内...
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养心氏对缺血性心脏病血流变学影响的临床分析
...著抗血栓成用,能使优球蛋白溶解时间(euglobulinlysistime,ELT)缩短,提高机体纤溶性,增加纤溶酶活性,亦能延长APTT、PT、TT而影响凝血过程,产生抗凝作用;松弛平滑肌,扩张冠状血管,降低血液循环阻力,改善血液循环,尤...
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竹叶提取物的抗血栓作用研究
...ithcontrolgroup 2.6竹叶提取物对家兔优球蛋白溶解时间(ELT)的影响取大耳白家兔50只,按“2.2”的方法分组给药,末次给药1h后按文献[4]的方法耳缘静脉采血1.8ml,3.8%的枸橼酸钠1:9抗凝。3000r/min离心10min,取血浆。取10ml的离...
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止血及凝血障碍的检查
...定等。5.5纤溶系统的检验(1)优球蛋白溶解时间测定(ELT)。(2)血浆鱼精蛋白副凝试验(三P试验)。(3)乙醇胶试验(ECT)。(4)葡萄球菌聚集试验(SCT)等。5.6目前凝血象检查的常规项目过去,常用BT、CT等试验来检查止...
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EtiologyofMumps-LikeIllnessesinChildrenandAdolescentsVaccinatedforMeasles,Mumps,andRubella
...ntil1990,IgGantibodiestomumpsvirusweremeasuredwithacommercialhemolysis-in-geltest(OrivirMumps;Orion);thereafter,theyweremeasuredwithacommercialEIAkit(EnzygnostAnti-Mumps/IgG;DadeBehring).IgMantibodiestomumpsvirusweremeasuredwithacommercialEIAkit(EnzygnostAnti-Mumps/Ig;DadeBehring).Epstein-Barrvirusa...
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前列腺增生合并膀胱结石的微创治疗
...济南:山东科学技术出版社,2004,1144.2KamalF,ClarkAT,LavalléeLT,etal.Intravesicalforeignbody-inducedbladdercalculiresultinginobstructiverenalfailure.CanUrolAssocJ,2008,2(5):546-548.3郭应禄.腔内泌尿外科学.北京:人民军医出版社,1995,131.4VarkarakisJ,Bart...
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对活血化瘀方药治疗急性出血性中风的认识
...活性。益母草、三棱、当归等可缩短优球蛋白溶解时间(ELT),使纤溶蛋白原含量下降,还有研究[13]结果提示丹参注射液和丹参素均可促进牛内皮细胞分泌PA,抑制PAI的分泌;临床观察丹参静滴给冠心病患者后,即可提高血PA...
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CCLExpressionPatternofHumanSecondaryLymphoidOrganStromaIsConservedinInflammatoryLesionswithLymphoidNeogenesis
...1mRNA.Acriticalquestionremainswhetherthedevelopmentofectopiclymphoidtissue(ELT)inchronicinflammationrecapitulatesthefeaturesofSLOs.Thus,wesystematicallyinvestigatedinsituthecellularsourcesofCCL21inSLOsandELTsinseveralhumandiseasescharacterizedbylymphoidneogenesis.Byinsituhybridizationandtheuseofcomb...
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新型溶栓剂纳豆激酶的研究进展
...一次值,然后计算出每个时刻OD655值同初始OD655值的差-ΔOD655/h,利用最小二乘法算出直线的斜率:-ΔOD655/h。以此斜率同NK浓度的对数作图,可得到良好的线性关系。以上几种纳豆激酶的活性测定方法,各有优缺点。目前普...
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第五节 出血性疾病
...(四)有关纤溶亢进的试验 可选用优球蛋白溶解时间(ELT)、血浆鱼精蛋白副凝固(3P)试验、FDP测定及纤维蛋白肽A和肽B测定。 出血性疾病的治疗原则 一、病因治疗 对获得性出血性疾病,必须针对病因,进行...
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MolecularEpidemiologyofNeisseriameningitidisIsolatedintheAfricanMeningitisBeltbetween1988and2003ShowsDominanceofSequenceType5(ST-5)andS
...meningococciisolatedfrommeningitiscasesin13Africancountriesofthemeningitisbeltbetween1988and2003.Amongthesestrains,278of357(77.9%)belongedtothesequencetype5(ST-5)complex;23.2%wereST-5and53.5%wereST-7.ST-5wasprobablyintroducedinAfricain1987andwasresponsibleformostofthemeningitiscasesbetween1988and200...
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Tightjunctionbiologyandkidneydysfunction
...sed.kidneydisease;zonulaoccludensTHETIGHTJUNCTION(TJ)FORMSacircumferentialbeltaroundanepithelialorendothelialcell,separatingtheplasmamembraneintoanapicalandabasolateraldomain.Thebeltfromonecelladjoinsbeltsfromadjacentcells,therebyformingasheetofcellularbarrierbetweentheexternalenvironment,e.g.,thelu...
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Yersiniapseudotuberculosisdisseminatesdirectlyfromareplicatingbacterialpoolintheintestine
...erculosisfailedtoestablishreplicationevenwithinthissite(Fig.3B).FormostoftheLT–/–micethathaddetectablebacterialpopulationsintheintestinallumen,bacteriawerealsofoundwithinthelivers,inspiteofalackofcolonizationofMLN(Fig.3B;only2/15LT–/–micehadbacteriainMLN).Fortheseanimals,thefrequencyatwhichl...
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NeuroprotectiveEffectsof17-EstradiolandNonfeminizingEstrogensagainstH2O2ToxicityinHumanNeuroblastomaSK-N-SHCells
...ciumLoading.Administrationof150µMH2O2increasedmitochondrialcalciumlevelto147±6%ofbaseline(Fig.4),whichwascompletelyblockedby2-hpretreatmentof1µM17-E2.Furthermore,17-E2andent-E2at1µMhadsimilareffectonmitochondrialcalciumprotectionagainstH2O2insult(Fig.4).Fig.4.Effectsofestrog...
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PolysaccharidePurifiedfromGanodermalucidumInducesGeneExpressionChangesinHumanDendriticCellsandPromotesTHelper1ImmuneResponseinBALB/cMice
...regulatedaftertheinteractionofPS-GwithDCs,weexaminedatthetranscriptionalleveltheeffectsofPS-GexposuretoDCs.Inaddition,informationgainedbytranscriptprofilingmayproveusefulinthedevelopmentofendpointmeasuresthatcanserveasthebasisforaninvitromethodtoidentifypotentialimmune-enhancingcompound.Inthepresent...
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AnalysisofHumanMultidrugResistanceProtein1(ABCC1)byMatrix-AssistedLaserDesorptionIonization/TimeofFlightMassSpectrometry:TowardIdentificatio
...ntcomparisonswithmassspectraofMRP1photolabeledwithLTC4identifiedsixcandidateLTC4-modifiedpeptidefragmentsthatareconsistentwiththeconclusionthattheintracellularjuxtamembranepositionsoftransmembranehelices6,7,10,17,andaCOOH-proximalportionofthecytoplasmicloopthatlinksthefirstandsecondmembranespanningd...
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CCChemokineReceptorExpressionbyBLymphocytesIsEssentialfortheDevelopmentofIsolatedLymphoidFollicles
...einitiationofprimaryimmuneresponsesandtheregulatedenvironmenttheyprovideisfelttobenecessarytopreventinappropriateimmuneresponses.Isolatedlymphoidfollicles(ILFs)haveonlyrecentlybecomeappreciatedasdistinctmembersofthegastrointestinal-associatedlymphoidtissues.ILFsresemblePeyer??spatches(PPs)intheirarc...