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1.
Infectionbyhumancytomegalovirus(HCMV)isverycommoninpopulationofdifferentagegroups.Thevastmajorityofinfectionsareasymptomatic.However,in-fectedpersonswithanimmatureorim-pairedcellularimmunesystem,suchasfe-tuses,neonatesandorgan-transplantedpa-tients,c…  相似文献   

2.
Thedrugresistanceofacutemyeloge-nousleukemiccells(AML)isamaincauseoftreatmentfailure.Theaffectingfactorsinvolvedintracellulardrugresistance,ki-neticsofanti-cancerdrug,abilityofdrugdiffusionandcapacityofleukemiccellgrowth,etc.[1].Thedetectionofdrugre-…  相似文献   

3.
1 IntroductionIn1984,anovelcatheterinterventiontech-niqueusingasize-adjustable,self-positioningbal-looncatheterwasintroducedbyInoueetal1asapromisingtherapeuticalternativeforsurgicaltreat-mentofpatientswithseveremitralstenosis(MS).Themethodwastermedpe…  相似文献   

4.
Inrecentyears,anewtendencyhasap-peared,whichwasconcernedwiththere-searchintoregulationofpancreaticsecre-tion.Researchofrecentyearshasindicatedinmanyrespectsthatvagusnervehasadi-rectregulativeeffectonexternalsecretionofpancreas[1].Inthisarticle,theDNA…  相似文献   

5.
Ofpotentialclinicalsignificance,syn-theticgrowthhormone(GH)-releasinghexapeptide(GHRP-6)isactiveafteroralandintranasaladministrationandthusholdspromiseasasimplifiedmeansofdirectlytreatingGH-deficiency[1].Consequently,therehasbeenmuchrecenteffortindev…  相似文献   

6.
烧伤后血清β-N-乙酰氨基己糖苷酶变化及其临床意义ChangesofcirculatingN-Acetyl-β-Hexosaminidaseinburnedpatientsanditsclinicalsignificance刘德贵,杨宗城,黎鳌(第三...  相似文献   

7.
IntroductionAseriesofworkonhydroxyapatitebio-ce-ramicshavebeendonesinceJanuary1988,in-cludingmanufacture,biologicalcompatibil...  相似文献   

8.
Endometriosisisamongthemostcom-mongynecologicentities,characterizedbyectopicgrowthofendothelialtissueintheperitonealcavity.Althoughthepathogene-sisisstillpoorlyunderstood,aconsistentfindingintheperitonealfluidofthesepa-tientshasbeentheincreasednumber…  相似文献   

9.
Althoughtheetiologyofpreeclampsiaremainsunknown,geneticpredispositionarethoughttocontributetothedevelop-mentofpreeclampsia.Recently,re-searchershavetriedtofindtheroleofin-heritedcomponentsinthepathogenesisofpreeclampsiausingmolecularbiologicaltechnol…  相似文献   

10.
Sino-implantisatwo-rodcontraceptiveimplantdevicecontainingLNGcharac-terizedbyitsconstantreleasein,lowdosageandprolongedefecti...  相似文献   

11.
Toevaluatetheinfluenceofacuteisovolemichemodilutiononthedose-responseandtime-courseofactionofvecuronium,30patientsundergoinga...  相似文献   

12.
从水杨梅根中分得8个成分,经光谱和化学方法鉴定为:quinovic acid(I),3-oxo-urs-12-ene-27,28-dioic acid(Ⅱ),qinovic acid-3β-O-β-D-glucopyranoside(Ⅲ),quinovic acid-3-β-O-α-L-rhamnopyranoside(Ⅳ),noreugenin(Ⅴ),7-O-β-D-glucosyl-noreu  相似文献   

13.
Binswanger′sdisease(BD),aformofvascularde-mentia,ischaracterizedpathologicalybydifusede-myelinationandmultiplesmalinfarctsint...  相似文献   

14.
继前报作者又从蒿属植物万年蒿中(氯仿萃取部分,醋酸乙酯萃取部分和经大孔树脂乙醇洗脱部分)分得七个化合物.经理化常数测定,光谱分析鉴定化合物Ⅰ为东莨菪内酯(scopo-letin),化合物Ⅱ为异秦皮定(isofraxidin),化合物Ⅲ为琥珀酸(succinicacid),化合物Ⅳ为sugere-osid,化合物Ⅴ为万年蒿甙C(sacrosidec),化合物Ⅵ为邻羟基桂皮酸酯甙(o-hydroxy-cinnamoyl-β-D-glucopyranoside)和化合物Ⅶ为6-甲氧基-香豆素-7-羟基樱草甙(6-methoxy-coumarin-7-hydro-xylprimeveraside),后者为首次从该属植物中分得的已知化合物.  相似文献   

15.
Efectoflowdoseγ┐rayoninductionofsister┐chromatidexchangeinV┐79celsSong-SheiLin林松水,Wang-ChiChen陈望吉,Jyh-ShengYou游智胜,I-HsinLin林宜...  相似文献   

16.
Anti-CD3×anti-idiotype(Id)bispecif-icantibody(BsAb)cansimultaneouslyrec-ognizeCD3moleculeonTcellsandIdanti-genicdeterminantonBcellmembraneofBcelllymphocyticleukemia(B-CLL).TheBsAbcanbothactivateTcellandenhanceitscytotoxicactivity,andspecificallyleada…  相似文献   

17.
抱茎苦荬菜Ixeris sonchifolia Hance的化学成分研究   总被引:14,自引:0,他引:14       下载免费PDF全文
从菊和植物抱茎苦荬菜IxerissonchifoliaHance全草中分得东莨菪素(scopoletin),本犀草素(luteolin),芹菜属(apigenin)(E)-2,5-二羟基桂皮酸(E)-2,5-dihydroxycinnamicacid)邻苯二甲酸双-(2-乙基)己酯(bis(2-ethylhexyl)phthalate)(+)-丁香脂素(十)-syringarensinol),对羟  相似文献   

18.
肝细胞癌和癌旁肝组织中c—myc,N—ras癌基因的表达   总被引:2,自引:0,他引:2  
张劲风  苏勤 《医学争鸣》1994,15(6):409-412
应用生物素标记的c-myc,N-rascDNA探讨对21例肝细胞癌石蜡切片进行原位杂交研究,结果显示,在231例肝癌组织中9例呈c-myc阳性(42.9%),4例为N-ras阳性(19%),而癌旁肝组织中仅有4例呈c-myc弱阳性,1例呈N-ras弱阳性,C-myc,N-ras,mRNA多分布于肝癌细胞浆中,显微分光光度计检测结果显示,肝癌细胞中c-myc,N-ras,mRNA阳性信号明显高于癌六  相似文献   

19.
本研究以高胆固醇膳食饲养家兔建立了主动脉粥样硬化模型,选用v-sis等6种癌基因和Rb抗癌基因片段为探针,分别与硬化斑块动脉壁及正常动脉壁总RNA进行斑点杂交分析。结果表明,v-sis、c-fos和c-myc癌基因表达与正常对照比较增加3倍以上(P<0.01),c-jun和H-ras表达增加2倍(P<0.01),v-erb-B表达无改变,Rb抗癌基因表达显著减少(P<0.05)。这些结果提示,动脉粥样硬化斑块的形成及动脉平滑肌细胞的增殖可能与v-sis,c-fos,c-myc,c-jun,H-ras等癌基因的表达增强及Rb抗癌基因表达减弱有关。  相似文献   

20.
Secretionofplateletsisanagonist-in-ducedresponse,whichisofimportancefortheenhancementofplateletactivationandforthevariousefec...  相似文献   

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