Elimination studies of antipyrine and its metabolites in healthy Saudi Arabians

Autor: Jens O. Sieck, Dale A. Raines, Martin Døssing, Jalal Saour, Adnan El-Yazigi, Hatim Ali, Peter Ernst
Rok vydání: 1994
Předmět:
Zdroj: Humanexperimental toxicology. 13(10)
ISSN: 0960-3271
Popis: 1 We measured the antipyrine clearance in 18 healthy Saudi subjects and determined the urinary excretion of three of its metabolites: 4-hydroxyantipyrine (4-OH AP), norantipyrine (NOR AP) and 3 hydroxymethylantipyrine (3-OHM AP) in 21 subjects. 2 The mean ± SD of the antipyrine clearance was 2.4 ± 1.1 h-1 (range 1.0-5.5 l h-1) and the corresponding value per kg body weight was 0.6 ± 0.2 ml min-1 kg-1. Urinary excretion of antipyrine (AP), 4-OH AP, NOR AP and 3-OHM AP expressed as a percentage of the oral dose of antipyrine given was 2.8 ± 2.2, 14.5 ± 6.9, 12.3 ± 5.6 and 7.6 ± 3.2 respectively. 3 Compared to Africans, Saudis preferentially metabolize AP to NOR AP and compared to Caucasians to 3-OHM AP, rather than to 4-OH AP. These discrepancies may reflect age differences between the study populations rather than genetic or ethnic variations.
Databáze: OpenAIRE