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  • Title: Effect of intraventricular oxytocin and vasopressin on self-stimulation in rats.
    Author: Schwarzberg H, Hartmann G, Kovács GL, Telegdy G.
    Journal: Acta Physiol Acad Sci Hung; 1976; 47(2-3):127-31. PubMed ID: 1031247.
    Abstract:
    Oxytocin (500 mu u) and vasopressin (50 mu u) were injected into the lateral ventricle and its effect on hypothalamic self-stimulation has been studied. Oxytocin increased, while vasopressin decreased the self-stimulation rate tested 10-20 min following application. The hypothalamic and mesencephalic serotonin content decreased slightly while plasma corticosterone content did not change 20 min after oxytocin and vasopressin administration compared to the injected control animals. The data suggest that vasopressin and oxytocin have an opposite effect on self-stimulation and this action is not mediated through the brain serotoninergic or pituitary-adrenocortical axis.
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