METABOLISM OF [14C]‐HISTAMINE IN HEART‐LUNG‐LIVER PREPARATIONS OF CATS
Open Access
- 1 April 1961
- journal article
- Published by Wiley in British Journal of Pharmacology and Chemotherapy
- Vol. 16 (2) , 203-208
- https://doi.org/10.1111/j.1476-5381.1961.tb00314.x
Abstract
The metabolism of injected [14C]-histamine was studied in heart-lung-liver preparations and heart-lung preparations from cats. When the liver was included in the circulation the injected histamine was rapidly eliminated from the blood, some of its metabolites appearing in the blood within 2 min after the injection. More than 70% of the injected histamine was metabolized to 1-methylimidazol-4-ylacetic acid. In the heart-lung preparations [14C]-histamine disappeared much more slowly from the blood and the major metabolite was 4-(2-aminoethyl)-1-methylimidazole (methylhistamine). Less than 4% of the injected 14C was recovered in the form of imidazol-4(or 5)-ylacetic acid. In none of the experiments was there any measurable formation of acetylhistamine.Keywords
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