简介：TheSOD-likeactivityoffiveCu(Ⅱ)complexes[Cu(HSal)_2·EtOH,Cu(Gly)_2,Cu(Lys)_2,Cu(His)_2,Cu(Try)_2]havebeenstudiedbyusingcytochromeCmethod,aswellaschemilumine-scenceandESRtechnique.Thefoursurfactants(CTAB,SDS,TritonX-100andTween20)werepurifiedandtheircriticalmiceileconcentration(CMC)inphosphatebuffer(pH=7.4)wasmea-sured.TheeffectsoffoursurfactantsonO_2~-havebeeninvestigated.Theco-operativeeffectsof

简介：TheSOD-likeactivitiesofcoppersalicylateencapsulatedinneutralpositivelyandnegativelychargedliposomeswerestudiedwithcytochromecmethod.TheresultsshowedthattheSOD-likeactivityofcoppersalicylateencapsulatedinneutralliposomeswasenhancedover3timesmorethanthatofcoppersalicylateinaqueoussolution.However,theactivitydecreasedforcoppersalicylateencapsulatedinpositivelyandnegativelychargedliposomes.Itwasalsofoundthatatexperimentalconcentrationstherewasnoregularityforthechangeofactivityofcoppersalicylateencapsulatedinnegativelychargedliposomes,andcoppersalicylateencapsulatedinliposomeswithmorenegativechargescouldpromotethedismutationofsuperoxideanionfreeradicals,however,socouldcoppersalicylateencapsulatedinliposomeswithfewernegativechargesonlyinlowerconcentrations.

简介：实验表明给小鼠五灵脂提取液，小鼠血液ＳＯＤ活性增强。测定五灵脂有类ＳＯＤ活性，在ｐＨ４５～８５，温度２５～１００℃条件下活性稳定