Derivationofanewformulaforcalculatingurinaryelectrolyte-freewaterclearancebasedontheEdelmanequation
【關鍵詞】urinaryDivisionofNephrology,DavidGeffenSchoolofMedicineatUCLA,LosAngeles,CaliforniaABSTRACTInevaluatingtherenalmechanismsresponsibleforthegenerationofthedysnatremias,ananalysisoffreewaterclearance(FWC)andelectrolyte-freewaterclearance(EFWC)isoftenutilizedtocharacterizetherateofurinary...
醫源資料庫;在線期刊;美國生理學雜誌;2005年第288卷第1期DeterminantsofplasmawatersodiumconcentrationasreflectedintheEdelmanequation:roleofosmoticandGibbs-Donnanequilibrium
...要】Edelmanetal.haveempiricallyshownthatplasmawatersodiumconcentration([Na+]pw)isequalto1.11(Nae+Ke)/TBW-25.6(EdelmanIS,LeibmanJ,O‘MearaMP,BirkenfeldLW.JClinInvest37:1236-1256,1958).However,thephysiologicalsignificanceoftheslopeandy-interceptinthisequationhasnotbeenpreviouslyconsidered.Ouranalys...
醫源資料庫;在線期刊;美國生理學雜誌;2004年第287卷第5期Newinsightsintothepathophysiologyofthedysnatremias:aquantitativeanalysis
【摘要】Recenttheoreticalconsiderationshaveplayedanimportantroleinadvancingourunderstandingofthephysiologicalmechanismsresponsibleforperturbingtheplasmawatersodiumconcentration([Na+]pw)inhealthanddisease.Centraltotheseconsiderationsistheoriginalempiricalrelationshipbetweenthe[Na+]pwandtotalexcha...
醫源資料庫;在線期刊;美國生理學雜誌;2004年第287卷第8期第三節 腎小管與集合管的轉運功能
...爲主動轉運)所需要消耗的能量由ATP水解直接提供。例如Na+和K+的主動轉運是靠細胞膜上的Na+泵水解ATP直接提供能量的。繼發性主動轉運所需的能量不是直接來自Na+泵。而是來自其他溶質順電化學梯度轉運時釋放的。例如一些物...
醫源資料庫;醫源圖書館;教材類;生理學去甲腎上腺素對大鼠體外抗體生成的影響
...調節 [摘 要]目的 觀察不同濃度去甲腎上腺素(NA,10-10~10-6mol/L)對大鼠體外抗體生成的影響,並初步探討其作用機制。方法 在體外用綿羊紅細胞(SRBC)刺激大鼠腸繫膜淋巴結B細胞轉化成抗體形成細胞(AFC),...
合作平臺;醫學論文;臨牀醫學與專科論文;檢驗醫學Anewformulaforpredictingalterationsinplasmasodiumconcentrationinperitonealdialysis
...sAngeles,CaliforniaABSTRACTAlterationsintheplasmawatersodiumconcentration([Na+]pw)resultfromchangesinthetotalexchangeablesodium(Nae),totalexchangeablepotassium(Ke),andtotalbodywater(TBW).Theempiricalrelationshipbetweenthe[Na+]pwandNae,Ke,andTBWwasoriginallydemonstrated(EdelmanIS,LeibmanJ,O‘MearaMP...
醫源資料庫;在線期刊;美國生理學雜誌;2005年第288卷第6期StrokeOnsetTimeUsingSodiumMRIinRatFocalCerebralIschemia
...iversity,Atlanta,GaPositron-EmissionTomographyCenter(S.K.Z.)andMagneticResonanceResearchCenter(F.E.B.),DepartmentofRadiology,UniversityofPittsburghSchoolofMedicine,Pittsburgh,Pa.AbstractBackgroundandPurpose—ThrombolytictherapywithintravenoustPAmustbeadministeredwithin3hoursafterstrokeonset.However...
醫源資料庫;在線期刊;中風學雜誌;2006年第37卷第3期Phospholemman-PhosphorylationMediatesthe-AdrenergicEffectsonNa/KPumpFunctioninCardiacMyocytes
...fVirginia(L.J.,A.L.T.),Charlottesville.AbstractCardiacsympatheticstimulationactivates-adrenergic(-AR)receptorsandproteinkinaseA(PKA)phosphorylationofproteinsinvolvedinmyocyteCaregulation.TheNa/K-ATPase(NKA)isessentialinregulatingintracellular[Na]([Na]i),whichinturnaffects[Ca]iviaNa/Caexchange.Howeve...
醫源資料庫;在線期刊;循環研究雜誌;2005年第95卷第8期Anewmethodfordeterminingplasmawatercontent:applicationinpseudohyponatremia
【摘要】Pseudohyponatremiaisaclinicalconditioncharacterizedbyanincreasedfractionofproteinorlipidinplasma,therebyresultinginanartificiallylowplasmasodiumconcentration([Na+]p).Sincetheautomatedmethodofmeasuring[Na+]pinmostlaboratoriesinvolvestheuseofanindirection-selectiveelectrode(I-ISE),thismeth...
醫源資料庫;在線期刊;美國生理學雜誌;2007年第290卷第5期老年冠心病慢性心力衰竭併發電解質紊亂的臨牀特點
...,老年冠心病CHF病人電解質紊亂的發生率增加,入院時血Na+和Cl-水平降低,心功能Ⅳ級病人血Na+、Cl-水平低於正常值,但不同心功能分級CHF病人間血K+水平差異無統計學意義。在老年冠心病CHF併發電解質紊亂病人中,低Na+及低Na++...
醫源資料庫;在線期刊;齊魯醫學雜誌;2008年第23卷第5期