In vitro metabolism of 14C-moxidectin by hepatic microsomes from various species.
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Dupuy J, Escudero E, Eeckhoutte C, Sutra JF, Galtier P, Alvinerie M
In vitro metabolism of 14C-moxidectin by hepatic microsomes from various species.
Vet Res Commun. 2001 Jul;25(5):345-54. doi: 10.1023/a:1010686508307.
- PubMed ID
- 11469506 [ View in PubMed]
- Abstract
Moxidectin is an antiparasitic drug widely used in cattle, sheep and companion animals. No data were available on its metabolism in wild species or in monogastrics. The in vitro metabolism of 14C-moxidectin was studied using hepatic microsomes from several different species: cow (Bos taurus). sheep (Ovis ovis), goat (Capra hircus), deer (Cervus dama), rat (Rattus norvegicus), pig (Sus scrofa and rabbit (Oryctolagus cuniculus). After separation and quantification by HPLC, the extent of metabolism of 14C-moxidectin was greatest with microsomes from sheep (32.7%) as compared to those from cows (20.6%), deer (15.4%), goats (12.7%). rabbits (7.0%) or rats (3.0%). The least metabolism occurred with microsomes from pigs. with 0.8% of total detected metabolites. A C29 monohydroxymethyl metabolite was detected in the greatest amounts. providing 0.4% out of the total detected radioactivity in pigs and 19.3% in sheep. In addition, the importance of P450 3A in the metabolism of 14C-moxidectin was confirmed by using in vivo induced P450 in combination with various P450 inhibitors.
DrugBank Data that Cites this Article
- Drug Enzymes
Drug Enzyme Kind Organism Pharmacological Action Actions Moxidectin CYP2B protein Protein Humans NoSubstrateDetails