Sex differences in the disposition of albendazole metabolites in sheep

Carles Cristòfol, Marc Navarro, Carme Franquelo, Josep Enric Valladares, Margarita Arboix

Producció científica: Contribució a una revistaArticleRecercaAvaluat per experts

21 Cites (Scopus)

Resum

Sex differences in the disposition of albendazole metabolites in sheep after oral administration of 20mg/kg of netobimin have been studied. Some kinetic parameters of both metabolites show statistical differences between sexes; the sulphoxide and sulphone t(1/2β) and MRT were lower in male animals than in females. Peak concentrations and AUC of sulphone metabolites were higher in males suggesting a greater oxidation rate compared with females. Urine excretion of albendazole metabolites, sulphoxide, sulphone, and amino sulphone appeared to be greater in female sheep than in males, mainly the sulphoxide metabolite. These differences between sexes can be caused by male sexual hormones, because testosterone and progesterone can induce or inhibit the microsomal Cytochrome P450 metabolism. Plasma protein-binding of albendazole sulphoxide and albendazole sulphone has been studied between male and female sheep, also their binding to sheep albumin and globulins. Both albendazole metabolites readily bind to sheep albumin and globulins. Male animals show a significantly lower binding of albendazole metabolites than females. These differences could be responsible for the non-esterified fatty acids (NEFA) present in the plasma. Males have significantly higher plasma levels of NEFA than females and which may compete with albumin for binding to albendazole metabolites. Copyright (C) 1998 Elsevier Science B.V.
Idioma originalEnglish
Pàgines (de-a)223-231
RevistaVeterinary Parasitology: Regional Studies and Reports
Volum78
DOIs
Estat de la publicacióPublicada - 14 d’ag. 1998

Fingerprint

Navegar pels temes de recerca de 'Sex differences in the disposition of albendazole metabolites in sheep'. Junts formen un fingerprint únic.

Com citar-ho