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  • Title: [Effect of intracerebroventricular injection of 6-hydroxydopamine and 5,6-dyhydroxytryptamine on the phasic secretion of luteinizing hormone (author's transl)].
    Author: Montilla P, Muñoz M, Palacios JL.
    Journal: Rev Esp Fisiol; 1979 Jun; 35(2):163-8. PubMed ID: 482718.
    Abstract:
    In ovariectomized rats carrying an estradiol sylastic implant the effect of the intraventricular administration of the serotonin neurotoxin 5,6-dihydroxytryptamine and of the norepinephrine neurotoxin 6-hydroxydopamine on the circadian secretion of the luteinizing hormone (LH) was studied. The decrease of 5-HT after injection of 5,6-dihydroxytryptamine reduced the a.m. and p.m. values and suppressed the phasic rhythm of LH. The diminution of noradrenaline after administration of 6-hydroxydopamine increased the a.m. and did not alter the p.m. values, resulting in a partial abolition of the rhythm.
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