Insights into In Vivo Absolute Oral Bioavailability, Biotransformation, and Toxicokinetics of Zearalenone, α-Zearalenol, ß-Zearalenol, Zearalenone-14-glucoside, and Zearalenone-14-sulfate in Pigs.
J Agric Food Chem
; 67(12): 3448-3458, 2019 Mar 27.
Article
em En
| MEDLINE
| ID: mdl-30807145
ABSTRACT
The aim of this study was to determine the toxicokinetic characteristics of ZEN and its modified forms, α-zearalenol (α-ZEL), ß-zearalenol (ß-ZEL), zearalenone-14-glucoside (ZEN14G), and zearalenone-14-sulfate (ZEN14S), including presystemic and systemic hydrolysis in pigs. Crossover pig trials were performed by means of intravenous and oral administration of ZEN and its modified forms. Systemic plasma concentrations of the administered toxins and their metabolites were quantified and further processed via tailor-made compartmental toxicokinetic models. Furthermore, portal plasma was analyzed to unravel the site of hydrolysis, and urine samples were analyzed to determine urinary excretion. Results demonstrate complete presystemic hydrolysis of ZEN14G and ZEN14S to ZEN and high oral bioavailability for all administered compounds, with further extensive first-pass glucuronidation. Conclusively, the modified-ZEN forms α-ZEL, ß-ZEL, ZEN14G, and ZEN14S contribute to overall ZEN systemic toxicity in pigs and should be taken into account for risk assessment.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Suínos
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Zearalenona
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Zeranol
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Micotoxinas
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
J Agric Food Chem
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Bélgica