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  • Title: Effect of lithium on the prolactin response to D-fenfluramine in healthy subjects.
    Author: Power AC, Dorkins CE, Cowen PJ.
    Journal: Biol Psychiatry; ; 33(11-12):801-5. PubMed ID: 8373918.
    Abstract:
    We assessed the effect of two regimens of lithium treatment (3 days and 2 weeks) on brain serotonin (5-HT) function in healthy subjects by measuring the prolactin (PRL) responses to the 5-HT releasing agent, d-fenfluramine (30 mg) before and after lithium administration. Neither regime of lithium treatment altered d-fenfluramine-induced PRL release. These results are in contrast to the facilitation produced by lithium of the PRL responses to the 5-HT precursor L-tryptophan. The data suggest that the ability of lithium to increase brain 5-HT neurotransmission in humans may depend on interactions with particular 5-HT receptor subtypes or specific mechanisms of 5-HT release.
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