Consulta: creatorFacets:"Oliveira,R.M.W."
Registros recuperados: 2
Data/hora: 01/06/2024 02:08:54

5-HT1A autoreceptor modulation of locomotor activity induced by nitric oxide in the rat dorsal raphe nucleus
Provedor de dados: 56
Autores: Gualda,L.B.; Martins,G.G.; Müller,B.; Guimarães,F.S.; Oliveira,R.M.W.
The dorsal raphe nucleus (DRN) is the origin of ascending serotonergic projections and is considered to be an important component of the brain circuit that mediates anxiety- and depression-related behaviors. A large fraction of DRN serotonin-positive neurons contain nitric oxide (NO). Disruption of NO-mediated neurotransmission in the DRN by NO synthase inhibitors produces anxiolytic- and antidepressant-like effects in rats and also induces nonspecific interference with locomotor activity. We investigated the involvement of the 5-HT1A autoreceptor in the locomotor effects induced by NO in the DRN of male Wistar rats (280-310 g, N = 9-10 per group). The NO donor 3-morpholinosylnomine hydrochloride (SIN-1, 150, and 300 nmol) and the NO scavenger...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Dorsal raphe nucleus; Nitric oxide; Serotonin; 5-HT1A receptor; Locomotor activity.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000400010

Expression of neuronal nitric oxide synthase in the hippocampal formation in affective disorders
Provedor de dados: 56
Autores: Oliveira,R.M.W.; Guimarães,F.S.; Deakin,J.F.W.
Hippocampal output is increased in affective disorders and is mediated by increased glutamatergic input via N-methyl-D-aspartate (NMDA) receptor and moderated by antidepressant treatment. Activation of NMDA receptors by glutamate evokes the release of nitric oxide (NO) by the activation of neuronal nitric oxide synthase (nNOS). The human hippocampus contains a high density of NMDA receptors and nNOS-expressing neurons suggesting the existence of an NMDA-NO transduction pathway which can be involved in the pathogenesis of affective disorders. We tested the hypothesis that nNOS expression is increased in the human hippocampus from affectively ill patients. Immunocytochemistry was used to demonstrate nNOS-expressing neurons in sections obtained from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Affective disorders; Major depression; Neuronal nitric oxide synthase; Immunohistochemistry; Hippocampus.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000400012