An electrophysiological study of neurones in the rat median raphe and their projections to septum and hippocampus
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2014, Neuronal Networks in Brain Function, CNS Disorders, and TherapeuticsPresynaptic modulation of 5-HT release in the rat septal region
2007, NeuroscienceCitation Excerpt :Although we did not test this hypothesis, this effect is most probably caused by an increase in the spontaneous firing of serotonergic afferents in the presence of low extracellular Ca2+-concentrations. In all septal subregions the evoked release of 5-HT was significantly reduced by the selective 5-HT1B receptor agonist CP-93,129 (see Hoyer et al., 1994) suggesting that, as in other brain regions (Göthert et al., 1996), the axon terminals of serotonergic raphe neurons projecting to the septal region (Segal and Landis, 1974; Köhler et al., 1982; Crunelli and Segal, 1985; Vertes, 1988, 1991; Leranth and Vertes, 1999; Waselus et al., 2006) are endowed with 5-HT1B autoreceptors. This notion is supported by 5-HT1B mRNA in situ hybridization studies in the dorsal and median raphe neurons (Doucet et al., 1995).
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Please address all correspondence to: Dr. V. Crunelli, Department of Pharmacology and Clinical Pharmacology, St George's Hospital Medical School, Cranmer Terrace, London SW17 0RE U.K.