ARRHENIUS ANALYSIS OF SINGLE-HEATED AND STEP-DOWN HEATED V79 AND L CELLSIN VITRO

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摘要 TheresponsetosingleheattreatmentandStep-downheat(SDH)treatmentinvitroofV79andLcellswasstudied.Colony-formingabilitywasassayedinmediumaftertreatmentinvitro.Time-responsecurveswereestablishedandsubjectedtoArrheniusanalysis.TheArrheniuscurvesshowedinflectionpointsat43℃forV79cellsandat42℃forLcells.Theactivationenergieswere145kcal/moleand400kcal/moleaboveandbelow43℃(P<0.05),respectively,forV79cells,while160kcal/moleand300kcal/moleaboveandbelow42℃(P<0.05),respectively,forLcells.ThermosensitivityofLcellsaremarkedlyhigherthanV79cells.BothV79andLcellsweresensitizedbySDH.TheSDHeffectwascharacterizedbyareductioninshoulder(anadditioneffecttosublethaldamage),anincreaseinslope(thermosensitization),andthedelayanddisappearanceofthermotolerant"tail"forV79andLcellsat45℃to40℃and44℃to42℃SDHtreatmentrespectively.Particularly,42℃to39℃or42℃to40℃SDHforLc
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出版日期 1990年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)