Use of an oxidase electrode to determine factors affecting the in vitro production of hydrogen peroxide by Ehrlich cells and 1-chloro-2, 4-dinitrobenzene.
Use of an oxidase electrode to determine factors affecting the in vitro production of hydrogen peroxide by Ehrlich cells and 1-chloro-2, 4-dinitrobenzene.
复制标题
使用氧化酶电极确定影响艾利希细胞和 1-氯-2, 4-二硝基苯体外产生过氧化氢的因素。
DOI:
10.1016/0006-2952(81)90519-0
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发表时间:
1981
影响因子:
5.8
通讯作者:
Biaglow,JE
中科院分区:
文献类型:
--
作者:
Schroy,CB;Biaglow,JE
A hydrogen peroxide (H2O2) electrode was used to continuously monitor H2O2concentrationsin vitroin a system designed to determine some of the factors which influence cellular H2O2production and reduction. 1-Chloro-2,4-dinitrobenzene (CDNB), a clinical and analytical agent, was found to alter electron transport in Ehrlich ascites tumor cells (EATC), causing formation of H2O2. H2O2accumulation in the cell suspension began after an initial lag period required for glutathione (GSH) depletion.N-Ethylmaleiraide (NEM), which removes thiols, shortened the lag period but did not alter the rate at which H2O2accumulated. H2O2accumulation was influenced by glucose and drug concentrations and glucose was important in determining the total amount of H2O2that eventually accumulated. The metabolic reduction of exogenously added H2O2in the absence of CDNB was stimulated by glucose, unaffected by azide (a catalase inhibitor), and inhibited by NEM. The data show that glutathione peroxidase is chiefly responsible for inactivating intracellularly produced H2O2and that at least three mechanisms may operate to remove glutathione in CDNB-treated cells. The findings imply that artificially low levels of GSH may be found when CDNB is used as an analytical reagent in whole cells and that topical use of CDNB may pose a genetic health hazard.
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DOI:
--
发表时间:
1980
期刊:
Mutation research
影响因子:
--
作者:
K. Summer;W. Göggelmann
通讯作者:
W. Göggelmann
影响因子:
5.8
作者:
J. Biaglow;J. Biaglow;O. Nygaard;O. Nygaard;C. Greenstock
通讯作者:
C. Greenstock
DOI:
--
发表时间:
1973
期刊:
Biochemical and Biophysical Research Communications - BBRC
影响因子:
--
作者:
J. Biaglow;O. Nygaard
通讯作者:
O. Nygaard
影响因子:
11.2
作者:
M. Varnes;J. Biaglow
通讯作者:
J. Biaglow
DOI:
--
发表时间:
1980
期刊:
Mutation research
影响因子:
--
作者:
K. Summer;W. Göggelmann
通讯作者:
W. Göggelmann