Title : Positron emission tomography study of pindolol occupancy of 5-HT(1A) receptors in humans: preliminary analyses.

Pub. Date : 2000 Jul

PMID : 10962261






6 Functional Relationships(s)
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1 Positron emission tomography study of pindolol occupancy of 5-HT(1A) receptors in humans: preliminary analyses. Pindolol 5-hydroxytryptamine receptor 1A Homo sapiens
2 Preclinical studies in rodents suggest that augmentation of serotonin reuptake inhibitors (SSRIs) therapy by the 5-hydroxytryptamine(1A) (5-HT(1A)) receptor agent pindolol might reduce the delay between initiation of treatment and antidepressant response. Pindolol 5-hydroxytryptamine receptor 1A Homo sapiens
3 This hypothesis is based on the ability of pindolol to potentiate the increase in serotonin (5-HT) transmission induced by SSRIs, an effect achieved by blockade of the 5-HT(1A) autoreceptors in the dorsal raphe nuclei (DRN). Pindolol 5-hydroxytryptamine receptor 1A Homo sapiens
4 Here, we evaluated the occupancy of 5-HT(1A) receptors following treatment with controlled release pindolol in nine healthy volunteers with positron-emission tomography (PET). Pindolol 5-hydroxytryptamine receptor 1A Homo sapiens
5 On the other hand, at each dose tested, pindolol occupancy of 5-HT(1A) receptors was higher in the DRN compared to cortical regions, demonstrating a significant in vivo selectivity for DRN 5-HT(1A) autoreceptors relative to cortico-limbic postsynaptic receptors. Pindolol 5-hydroxytryptamine receptor 1A Homo sapiens
6 On the other hand, at each dose tested, pindolol occupancy of 5-HT(1A) receptors was higher in the DRN compared to cortical regions, demonstrating a significant in vivo selectivity for DRN 5-HT(1A) autoreceptors relative to cortico-limbic postsynaptic receptors. Pindolol 5-hydroxytryptamine receptor 1A Homo sapiens