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  • Title: Lack of the specific influence of histamine and histamine H1, H2 and H3 receptor ligands on the serotonin uptake and release in rat blood platelets.
    Author: Pawlak D, Malinowska B, Wollny T, Godlewski G, Buczko W.
    Journal: Pol J Pharmacol; 1996; 48(6):615-20. PubMed ID: 9112702.
    Abstract:
    This work was designed to investigate the influence of histamine, and H1 receptor agonist 2-(2-thiazolyl)ethylamine, H2 receptor agonist dimaprit and H3 receptor agonist R-(-)-alpha-methylhistamine on the serotonin uptake and release in rat blood platelets. Histamine and R-(-)-alpha-methylhistamine (up to 1 mmol/l), 2-(2-thiazolyl)ethylamine (up to 10 mumol/l) and dimaprit (up to 1 mumol/l) failed to affect the serotonin uptake. The concentration-dependent inhibitory effects of higher concentrations of 2-(2-thiazolyl)ethylamine and dimaprit (up to 1 mmol/l) were not diminished by the H1 receptor antagonist dimetindene and the H2 receptor antagonist ranitidine (1 and 100 mumol/l each), respectively. Histamine, 2-(2-thiazolyl)ethylamine, dimaprit and R-(-)-alpha-methylhistamine (up to 10 mumol/l) did not change the serotonin release from rat blood platelets. Our results demonstrate that histamine and histamine H1, H2 and H3 receptor agonists do not affect in a specific manner the serotonin uptake and release in rat blood platelets.
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