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  • Title: Monoamine oxidase inhibitor sensitive site implicated in sensitization to quinpirole.
    Author: Culver KE, Szechtman H.
    Journal: Eur J Pharmacol; 1997 Nov 27; 339(2-3):109-11. PubMed ID: 9473123.
    Abstract:
    Clorgyline (1.0 mg/kg/day) administered via osmotic minipumps blocked the development of locomotor sensitization to the dopamine receptor agonist quinpirole (0.5 mg/kg every 3 days for 8 injections). In male rats already well sensitized to quinpirole, the continuous infusion of clorgyline (1.0 mg/kg/day for 28 days) produced a progressive decline in locomotor activity, despite a continued regimen of quinpirole injections (0.5 mg/kg every 3 days). It is suggested that the development, as well as the maintenance, of locomotor sensitization to quinpirole is modulated by the activation of an monoamine oxidase inhibitor-sensitive site. This site may be a dopamine D2 receptor-linked monoamine oxidase inhibitor-displaceable quinpirole binding site, the enzyme monoamine oxidase-A, or other clorgyline binding sites.
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