Cytotoxic effects of two antimolting insecticides in mammalian CHO-K1 cells

被引:19
作者
Bayoumi, AE
Pérez-Pertejo, Y
Zidan, HZ
Balaña-Fouce, R
Ordóñez, C
Ordóñez, D [1 ]
机构
[1] Univ Leon, Dept Pharmacol & Toxicol, INTOXCAL, Fac Med Vet, Leon 24011, Spain
[2] Ain Shams Univ, Fac Agr, Dept Plant Protect, Cairo, Egypt
关键词
integrated pest management; antimolting agents; cytotoxicity; diflubenzuron; pyriproxyfen;
D O I
10.1016/S0147-6513(02)00068-4
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Cytotoxicity of two insect growth regulators, diflubenzuron, a benzoylphenylurea derivative that inhibits the synthesis of new chitin in target organisms, and pyriproxyfen, an insect juvenile hormone analogue, were tested on CHO-K1 cultures, using the neutral red incorporation assay. Both compounds displayed cytotoxic effects that rise with time exposure. The presence of either fetal calf serum or bovine serum albumin diminished significantly the cytotoxicity of both compounds, thus pointing to a strong protein binding. In addition, extensive metabolization with rat liver submitochondrial fraction gave rise to metabolites less toxic than the parent compounds, implying the relative safety of both diflubenzuron and pyriproxyfen in mammals. (C) 2003 Elsevier Science (USA). All rights reserved.
引用
收藏
页码:19 / 23
页数:5
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