鈦在可摘局部義齒修復中的應用

...修復體的CAD/CAM系統：計算機輔助設計與輔助製作(computeraideddesign/computeraimedmanufacture，簡稱CAD/CAM)鈦修復體，較精密鑄造法有許多優點，可避免蠟型變形及鑄件收縮，製作時間也明顯縮短等。目前，用於鈦支架製作的CAD/CAM系統仍...

胃癌及癌前病變中Bcl-2和Bax基因蛋白的表達及其細胞凋亡的關係

...uslesions.MethodsTUNELmethodwasusedtodetectapotosisandimmunohistochemicalstainingmethodwasusedtodetecttheexpressionofBcl-2andBaxproteinin70chronicgastritis，49intestinalmetaplasia，64dysplasiaand81gastriccarcinoma.ResultsThepositiveincidenceofBcl-2wasthehighestinseveredysplasia，buttheapoptosisin...

EvolutionofSporadicIsolatesofMethicillin-ResistantStaphylococcusaureus(MRSA)inHospitalsandTheirSimilaritiestoIsolatesofCommunity-AcquiredMRS

...(MRSA)hospitalisolatesthatclearlydifferedfromthesixmajorpandemicclonesofMRSAinpulsed-fieldgelelectrophoresistype,mecAandTn554polymorphism,andepidemicbehaviorwereselectedfromaninternationalstraincollectionformoredetailedcharacterization.SpaAtyping,multilocussequencetyping,andSCCmec(staphylococcalcass...

妊娠晚期胎盤細胞凋亡及一氧化氮合酶活性與分娩發動的關係

...盤組織，應用TUNEL法檢測凋亡細胞，並計算出凋亡指數（AI），同時應用免疫組化法分析誘導型一氧化氮合酶（iNOS）的表達。結果臨產組胎盤絨毛滋養細胞AI和iNOS表達均較未臨產組有明顯升高，差異有顯著性（P0.05）。結論胎盤...

土壤中六六六和滴滴涕的測定

...樣分析。5.2.3校準數據的表示:試樣中組分按式(1)校準：Xi=AiEi/AE式中：Xi——試樣中組分i的含量，mg/kg；Ei——標準溶液中組分i的含量，mg/kg；Ai——試樣中組分Z的峯高，cm(或峯面積cm2)；AE——標準溶液中組分i的峯高，cm(或峯面積...

DifferentialsynergyofNotchandTcellreceptorsignalingdeterminesversuslineagefate

....GarbeandA.Kruegercontributedequallytothiswork.ThemammalianimmunesystemcontainsseveralTlymphocytelineagesofwhichtheTCRlineageandtheTCRlineagedivergerelativelyearlyinTlymphocytedevelopment,resultinginCD4+/8+cellsexpressinganTCRandCD4–8–doublenegative(DN)cellswithaTCR.ThegenesegmentsencodingtheTCR...

體外循環中的心肌保護

...厚――梗阻可變（F4、肥厚性心肌病）血液返流――MI、AI→心臟肥大及肺血管病變MI、AI心室前負荷增加，離心性肥厚血液分流――ASD、VSD、PDA→肺高壓及右心的改變VSD左心前負荷增加，左室大ASD右心前負荷增加，左室發育小危...

人生長激素對人胰腺癌細胞增殖和凋亡的影響

...lyestablished.Thecellcycle,caryonproliferationantigen(PCNA),apoptosisindex(AI)ofxenograftwereinvestigatedbyflowcytometry,immunohistochemistry,andterminaldeoxynucleotidyltransferasemediateddeoxyuridinetriphosphatebiotinnickendlabeling(TUNEL)respctively.ResultsCellsinSphase,PCNAofgastriccancerxe...

Affordable,AbbreviatedRocheMonitorAssayforQuantificationofHumanImmunodeficiencyVirusType1RNAinPlasma

...edtestappliedto1,774mostlyAfricansampleshadresultsnearlyidenticaltothoseobtainedfollowingthepackageinsertinstructions.Tomakethisapproachfeasible,Rochewouldhavetoprovideadditionallysisbufferandmastermix.TEXTWiththeintroductionofgenericanti-humanimmunodeficiencyvirus(HIV)drugstoresource-poorcountriest...

造血幹細胞自我更新相關基因的研究進展

...括細胞週期抑制因子p16INK4a與p19ARF的上調及凋亡抑制因子AI6的下調。這些可能用以解釋Bmi1-/-小鼠體內HSCs的缺失：上調p16INK4a基因與衰老相關；下調AI6與上調p19ARF可導致細胞凋亡。3ShhSonichedgehog（Shh）是一種共價結合膽固醇...