Metabolism of vinyl halides: in vitro studies on roles of potential activated metabolites.
Metabolism of vinyl halides: in vitro studies on roles of potential activated metabolites.
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卤乙烯的代谢:潜在活化代谢物作用的体外研究。
DOI:
10.1007/978-1-4757-0674-1_50
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发表时间:
1981
影响因子:
--
通讯作者:
Guengerich,FP
中科院分区:
文献类型:
--
作者:
Guengerich,FP
Vinyl chloride (VC) has been shown to be toxic and carcinogenic in animals and humans (Maltoni and Lefemine, 1974). Vinyl bromide (VBr) also appears to be hepatotoxic and carcinogenic (Conolly et al., 1978). Barbin et al. (1975) indicated that both VC and VBr can be activated to reactive electrophiles by liver microsomal systems fortified with NADPH. A number of other studies strongly suggest that mixed-function oxidation of vinyl halides is responsible for the mutagenesis and irreversible binding of metabolites that is observed with these compounds (Bartsch and Montesano, 1975; Bolt et al., 1975; Hefner et al., 1975; Henschler and Bonse, 1977; Guengerich and Watanabe, 1979). A commonly suggested reactive metabolite is a 2-haloethylene oxide. However, such compounds rearrange to 2-haloacetaldehydes, which also react with potential nucleophilic targets. In the studies presented here, we examined the ability of highly purified enzymes to specifically destroy these postulated reactive intermediatesinsituin microsomal incubation systems, utilizing irreversible binding of vinyl halide labels to protein and DNA as indices of activation.
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影响因子:
3.6
作者:
F. Guengerich;P. Mason
通讯作者:
P. Mason
影响因子:
5.8
作者:
F. Guengerich;P. Watanabe
通讯作者:
P. Watanabe
影响因子:
4.8
作者:
G. Dubois;E. Appella;W. Levin;A. Y. Lu;D. Jerina
通讯作者:
D. Jerina
影响因子:
4.8
作者:
F. Guengerich
通讯作者:
F. Guengerich
影响因子:
2.9
作者:
SECRIST, JA;WEBER, G;BARRIO, JR
通讯作者:
BARRIO, JR