P-450 enzymes

P-450 enzymes

enzymes, which are at high levels in some fish-eating birds, e.g. Atlantic puffins, capable of metabolizing xenobiotic substrates including pesticides.
References in periodicals archive ?
Liver P-450 enzymes catalyze conversion of dapsone to N-hydroxy-dapsone.
In theory at least, SSRIs that inhibit cytochrome P-450 enzymes, such as fluoxetine and fluvoxamine (Luvox), may alter concentrations of some oral antidiabetic drugs.
The volatile organic compounds are either degraded by cytochrome P-450 enzymes or excreted in the breath.
The hepatic metabolism of many medications is mediated by certain cytochrome P-450 enzymes, and the antidepressants fluvoxamine and nefazodone interfere with certain P-450 enzymes.
At the end of the 4 weeks, the researchers killed the fish and extracted their cytochrome P-450 enzymes, which break down chemicals.
Both alcohol and tobacco are known to induce hepatic cytochrome P-450 enzymes, which can lead to altered metabolism of many drugs," he said.
Cytochrome P-450 enzymes have been implicated in most drug-drug interactions, including many cases of hepatotoxicity.
Interindividual variations in human liver cytochrome P-450 enzymes involved in the oxidation of drugs, carcinogens and toxic chemicals: studies with liver microsomes of 30 Japanese and 30 Caucasians.
Drugs that induce cytochrome P-450 enzymes, such as carbamazepine, oxcarbazepine, and topiramate, have been linked with a raised contraceptive failure rate--at least 6% per year, and in some cases as high as 20%, compared with 1% per year in non-treated populations.