| Autor: |
Gerding TK; Department of Toxicology, State University, Groningen, The Netherlands., Drenth BF, de Zeeuw RA, Tepper PG, Horn AS |
| Jazyk: |
angličtina |
| Zdroj: |
Xenobiotica; the fate of foreign compounds in biological systems [Xenobiotica] 1990 May; Vol. 20 (5), pp. 525-36. |
| DOI: |
10.3109/00498259009046867 |
| Abstrakt: |
1. The in vivo metabolic pathways of 2-(N-propyl-N-2-thienylethylamino)-5-hydroxytetralin (I) in rats have been established, using in vitro metabolism as a complementary technique. 2. All identified metabolites were conjugates. Glucuronidation at the phenolic group yields the major metabolite, accounting for 50% (i.v.) or 65% (oral) of the dose. The corresponding sulphate conjugate of I is virtually absent (less than 0.2% dose). 3. Hydroxylation of I, at the ortho position to the phenolic hydroxy group, yields 6-hydroxy-I (II), accounting for about 13% (i.v.) or 9% (oral) dose. This catechol is excreted, as a glucuronide, almost exclusively into the bile. Both the 5- and the 6-glucuronide of II were detected in about equal amounts. 4. Metabolism of I in vitro showed that under oxidative conditions, depropylation of I occurred. Conjugation of 3H-I in the presence of UDPGA or PAPS, was successful in yielding the glucuronide and sulphate conjugates. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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