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苯乙烯在人血红细胞和淋巴细胞中氧化生成环氧苯乙烷。

Styrene oxidation to styrene oxide in human blood erythrocytes and lymphocytes.

作者信息

Belvedere G, Tursi F

出版信息

Res Commun Chem Pathol Pharmacol. 1981 Aug;33(2):273-82.

PMID:7302375
Abstract

Human erythrocytes and lymphocytes catalyzed styrene oxidation to styrene oxide. The erythrocyte catalyzed reaction was inhibited by CO, occurred in the absence of NADPH and NADH and was undetectable in the absence of O2 and with erythrocyte membranes. Lymphocyte catalyzed styrene oxide formation required the addition of cofactors and these cells showed 6 times the activity of erythrocytes with a 4 times lower styrene concentration. Although lymphocytes appear to be more active than red blood cells in styrene oxidation, their contribution to styrene metabolism in whole blood seems extremely small.

摘要

人类红细胞和淋巴细胞可催化苯乙烯氧化生成环氧苯乙烯。红细胞催化的反应受到一氧化碳的抑制,在没有烟酰胺腺嘌呤二核苷酸磷酸(NADPH)和烟酰胺腺嘌呤二核苷酸(NADH)的情况下发生,并且在没有氧气以及没有红细胞膜的情况下无法检测到。淋巴细胞催化生成环氧苯乙烯需要添加辅因子,这些细胞在苯乙烯浓度低4倍的情况下,活性是红细胞的6倍。尽管淋巴细胞在苯乙烯氧化中似乎比红细胞更活跃,但它们对全血中苯乙烯代谢的贡献似乎极小。

相似文献

1
Styrene oxidation to styrene oxide in human blood erythrocytes and lymphocytes.苯乙烯在人血红细胞和淋巴细胞中氧化生成环氧苯乙烷。
Res Commun Chem Pathol Pharmacol. 1981 Aug;33(2):273-82.
2
Metabolic activation of styrene by erythrocytes detected as increased sister chromatid exchanges in cultured human lymphocytes.红细胞对苯乙烯的代谢活化作用表现为培养的人淋巴细胞中姐妹染色单体交换增加。
Cancer Res. 1983 Aug;43(8):3579-82.
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Investigation of styrene oxide-DNA adducts and their detection in workers exposed to styrene.氧化苯乙烯-DNA加合物的研究及其在接触苯乙烯工人中的检测。
Prog Clin Biol Res. 1990;340C:271-82.
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Styrene oxidation to styrene oxide in human erythrocytes is catalyzed by oxyhemoglobin.在人体红细胞中,氧合血红蛋白催化苯乙烯氧化生成环氧苯乙烷。
Experientia. 1983 Jun 15;39(6):593-4. doi: 10.1007/BF01971112.
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Effect of blood on styrene oxidation in perfused rat liver.
Toxicol Lett. 1984 Dec;23(3):261-5. doi: 10.1016/0378-4274(84)90019-5.
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Cytogenetic analysis of human peripheral blood lymphocytes in culture exposed in vitro to styrene and styrene oxide.对体外暴露于苯乙烯和环氧苯乙烷的培养人外周血淋巴细胞进行细胞遗传学分析。
J Hyg Epidemiol Microbiol Immunol. 1984;29(3):269-74.
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Styrene and styrene oxide induce SCEs and are metabolised in human lymphocyte cultures.苯乙烯和环氧苯乙烷可诱导姐妹染色单体交换,并在人类淋巴细胞培养物中发生代谢。
Carcinogenesis. 1980 Apr;1(4):357-61. doi: 10.1093/carcin/1.4.357.
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Styrene oxidation to styrene oxide coupled with arachidonic acid oxidation by soybean lipoxygenase.苯乙烯氧化生成环氧苯乙烷与大豆脂氧合酶催化花生四烯酸氧化的偶联反应。
Toxicol Lett. 1983 Aug;18(1-2):39-44. doi: 10.1016/0378-4274(83)90068-1.
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Styrene oxidation to styrene oxide by hydroxyl radicals produced during reaction of xanthine with xanthine oxidase in the presence of Fe3+.在Fe3+存在的情况下,黄嘌呤与黄嘌呤氧化酶反应过程中产生的羟基自由基将苯乙烯氧化为环氧苯乙烷。
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Ferrodoxin reductase catalyzes styrene oxidation to styrene oxide.铁氧化还原蛋白还原酶催化苯乙烯氧化生成环氧苯乙烷。
Experientia. 1982 Mar 15;38(3):306-7. doi: 10.1007/BF01949357.

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