Differential response of human and rat epoxide hydrolase to polycyclic aromatic hydrocarbon exposure: Studies using precision-cut tissue slices

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Differential response of human and rat epoxide hydrolase to polycyclic aromatic hydrocarbon exposure: studies using precision-cut tissue slices.

The potential of polycyclic aromatic hydrocarbons (PAHs) to modulate microsomal epoxide hydrolase activity, determined using benzo[a]pyrene 5-oxide as substrate, in human liver, was evaluated and compared to rat liver. Precision-cut liver slices prepared from fresh human liver were incubated with six structurally diverse PAHs, at a range of concentrations, for 24h. Of the six PAHs studied, benz...

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The presence of serum antibodies to the diol-epoxide DNA adducts of representative polycyclic aromatic hydrocarbons (PAH), chrysene, benz[a]anthracene and benzo[a]pyrene, was determined by ELISA using serum samples obtained from normal healthy individuals. Antibodies that reacted against PAH adducted-DNA, but not against PAH-adducted protein, were found in the serum of approximately 40% of the ...

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Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and persistent environmental contaminants. Some PAHs are carcinogens and may affect the male reproductive system. Therefore, we exposed cultured rat Sertoli cells to a variety of PAHs to determine possible direct toxic effects on the cells of the seminiferous epithelium. Sertoli cells were chosen because they support germ cell development a...

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ژورنال

عنوان ژورنال: Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis

سال: 2008

ISSN: 0027-5107

DOI: 10.1016/j.mrfmmm.2008.01.004