Effect of Hydrogen Peroxide and Catalase Derivatives on Functional Activity of Platelets

被引：6

作者：

Vavaev, A. V. ^{[1
]}

Buryachkovskaya, L. I. ^{[1
]}

Uchitel, I. A. ^{[1
]}

Tishchenko, E. G. ^{[1
]}

Maksimenko, A. V. ^{[1
]}

机构：

[1] Inst Expt Cardiol, Moscow, Russia

来源：

BULLETIN OF EXPERIMENTAL BIOLOGY AND MEDICINE | 2012年 / 152卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

platelet aggregation; hydrogen peroxide; catalase; bienzyme conjugate superoxide dismutase-chondroitin sulfate-catalase; antiplatelet effect; AGGREGATION; INHIBITION; ACTIVATION; RADICALS;

D O I：

10.1007/s10517-012-1515-0

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

Effects of H2O2 on platelet aggregation were estimated in vitro in the presence and absence of inductors (ADP, serotonin, TRAP) and native and modified catalase. Dose-dependent effect of H2O2 (50 mu M or more) was investigated in a pathophysiological concentration of 300 mu M inducing platelet aggregation. H2O2 modulated aggregation induced by ADP, serotonin, and TRAP significantly increasing the initial platelet aggregation followed by disaggregation, which was always more pronounced than in control. Catalase derivatives (native and modified forms) dose-dependently reduced the effect of H2O2 and completely abolished it in a dose of 9000 U catalase activity per 1 ml of solution for native catalase and 1200 U/ml for modified one. Modified catalase, in contrast to native one, produced an independent inhibitory effect on induced platelet aggregation. Components of modified catalase (individual substance and simple mixture) had no antiaggregant effect.

引用

页码：307 / 312

页数：6

共 15 条

[1]

EGAN RW, 1976, J BIOL CHEM, V251, P7329

[2] Hydrogen peroxide in the human body [J].