Carbon tetrachloride and bromotrichloromethane toxicity: Dual role of covalent binding of metabolic cleavage products and lipid peroxidation in depression of microsomal calcium sequestration

We have investigated the importance of covalent binding and lipid peroxidation on the depression of microsomal calcium sequestration associated with in vitro metabolism of 14CCl 4. Studies with CBrCl 3 are also reported. In aerobic systems, promethazine was used to block lipid peroxidation, measured...

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Veröffentlicht in:Biochemical pharmacology 1983-01, Vol.32 (10), p.1613-1617
Hauptverfasser: Waller, Robert L., Glende, Erica, Recknagel, Richard O.
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container_issue 10
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container_title Biochemical pharmacology
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creator Waller, Robert L.
Glende, Erica
Recknagel, Richard O.
description We have investigated the importance of covalent binding and lipid peroxidation on the depression of microsomal calcium sequestration associated with in vitro metabolism of 14CCl 4. Studies with CBrCl 3 are also reported. In aerobic systems, promethazine was used to block lipid peroxidation, measured as malondialdehyde (MDA) generation. Effects of low levels of lipid peroxidation were tested in Fe 2+ -supplemented systems free of halogenated hydrocarbons. The results indicate that microsomal calcium sequestration can be depressed significantly by metabolism of either CCl 4 or CBrCl 3 in the absence of MDA generation, or by lipid peroxidation occurring in the absence of halogenated hydrocarbons.
doi_str_mv 10.1016/0006-2952(83)90336-2
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ispartof Biochemical pharmacology, 1983-01, Vol.32 (10), p.1613-1617
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1873-2968
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source MEDLINE; Elsevier ScienceDirect Journals
subjects Animals
Bromotrichloromethane - pharmacology
Calcium - metabolism
Carbon Tetrachloride - pharmacology
Chloroform - analogs & derivatives
Depression, Chemical
Lipid Metabolism
Lipid Peroxides - biosynthesis
Male
Malondialdehyde - metabolism
Microsomes, Liver - drug effects
Microsomes, Liver - metabolism
Promethazine - pharmacology
Rats
Rats, Inbred Strains
title Carbon tetrachloride and bromotrichloromethane toxicity: Dual role of covalent binding of metabolic cleavage products and lipid peroxidation in depression of microsomal calcium sequestration
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