Raphe
Mostrando 13-24 de 117 artigos, teses e dissertações.
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13. Hormonal and cognitive factors associated with the exploratory behavior of rats submitted to repeated sessions of the elevated plus-maze
Naive rats submitted to the elevated plus-maze (EPM) display a characteristic increase in open arm exploration and reduced risk assessment behaviors (RABs) after the administration of anxiolytic drugs. Upon re-exposure to the maze, however, the traditional measures of the EPM become resistant to these drugs. This intriguing phenomenon was initially observed
Psychology & Neuroscience. Publicado em: 2010-06
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14. Participação dos núcleos da rafe nas respostas cardiorespiratórias à hipóxia e hipercarbia em sapos / Role of the raphe nuclei in the ventilatory and cardiovascular response to hypoxia and hipercarbia in toads
The raphe nuclei are brainstem cell groups and the main cell type is serotonergic. In adult anurans electrical or chemical stimulation of the medullary raphe has no effect on ventilation, whereas in mammals depending on the specific site of stimulation, an excitatory or inhibitory response is elicited. In mammals the medullary raphe participate in the ventil
Publicado em: 2010
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15. Núcleo mediano da rafe e estresse de nado forçado: papel dos receptores de glutamato de tipo NMDA / Median Raphe Nucleus and Forced Swim stress: role of glutamate NMDA receptors
Exposure to uncontrollable stressors leads to behavioral and neurochemical changes, which has been associated to mal functioning of the Median Raphe Nucleus (MnRN)-Dorsal Hippocampus (DH) serotoninergic pathway. These deficits can be attenuated by intra-hippocampal injections of NMDA antagonists or 5-HT1a agonists. Activation of MnRN glutamatergic NMDA recep
Publicado em: 2010
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16. Manifestações bucais em pacientes com síndrome de Kabuki
Kabuki syndrome (KS, Kabuki make-up syndrome, Niikawa-Kuroki syndrome) is a rare genetic disorder characterized by multiple congenital anomalies and mental retardation. The diagnosis is clinical and based on the findings described simultaneously in independent studies of two groups in Japan. The sample comprised sixteen KS individuals diagnosed by Department
Publicado em: 2010
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17. The effects of diazepam on the elevated T-maze are dependent on the estrous cycle of rats
In order to determine the modulation of anxiolytic and panicolytic-like effects of diazepam by the hormonal cycle of female rats, male and female rats - the latter divided per estrous cycle phase (estrus, diestrus, metaestrus and proestrus) - were tested in the elevated T-maze, a behavioral model of panic and anxiety. Diazepam (0.5, 1.0 and 2.0 mg/kg) or sal
Psychology & Neuroscience. Publicado em: 2009-12
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18. A expressão do maspin nos tumores mamários caninos: um estudo imuno-histoquímico e molecular
O serpin maspin, um supressor tumoral no câncer de mama foi descrito como inibidor de migração celular e indutor de adesão celular entre a membrana basal e a matriz extracelular resultando na inibição da metástase tumoral. Por outro lado, a alta expressão do maspin está relacionada com um mau prognóstico em outros tipos de câncer. Pouco se sabe so
Pesquisa Veterinária Brasileira. Publicado em: 2009-02
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19. DistribuiÃÃo e anÃlise quantitativa de neurÃnios imunoreativos à enzima triptofano hidroxilase em nÃcleos de rafe de ratos desnutridos durante a vida perinatal / Distribution and quantitative analysis of neurons immunoreactive for the enzyme tryptophan hydroxylase in the raphe nuclei of animals malnourished during perinatal life
Nutritional disorders occurring during the development of the nervous system may program the fetal metabolism so long to allow the survival of individuals to changes in the nutritional environment. The perinatal protein malnutrition promotes neurochemical changes, including the levels of serotonin and limiting enzyme for its synthesis, tryptophan hydroxylase
Publicado em: 2009
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20. Taxonomic studies in Cambessedesia DC. (Melastomataceae) / Estudos taxonomicos em Cambessedesia DC. (Melastomataceae)
A taxonomic re-evaluation of the genus Cambessedesia DC. is conducted, including identification key for all taxa, descriptions, synonymies, list of examined materials, comments about taxonomic affinities based on morphological traits, observations on habitat and distribution, as well as illustrations and distribution maps for all analyzed species. The studie
Publicado em: 2009
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21. Organização das projeções do córtex pré-fontral para o núcleo dorsal da rafe no rato. / Organization of the projections from the prefrontal cortex to the dorsal raphe nucleus in the rat.
O núcleo dorsal da rafe (DR) envia densas projeções para o prosencéfalo e está implicado em várias funções complexas. Muitos estudos indicam que a atividade neuronal do DR é controlada por neurônios do córtex pré-frontal (PFC). Devido à escassez de informações detalhadas sobre as conexões entre o PFC e o DR, objetivamos mapear sistematicament
Publicado em: 2008
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22. Estudo do desenvolvimento somático e sensório-motor de Rattus norvegicus machos e fêmeas oriundos de mães tratadas na prenhez com sertralina: análise da distribuição dos neurônios serotoninérgicos nos núcleos da rafe. / Study of development and somatic sensorimotor of Rattus norvegicus males and females from mothers treated with sertraline in pregnancy: analysis of the distribution of serotonergic neurons in the raphe nuclei.
Analisamos o efeito do sistema serotoninérgico no desenvolvimento somático e na ontogênese de reflexos dos filhotes, cujas mães foram submetidas a tratamento farmacológico durante a prenhez. Ratas wistar prenhas foram divididas em dois grupos (N=11): Grupo AD, tratadas com água destilada, Grupo Sert, tratadas com sertralina 30mg/kg, 0,5mL/100g, s.c. Um
Publicado em: 2008
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23. Serotonergic system - Interactions with the circadian timing system. / Sistema serotonérgico - relações com o sistema de temporização circadiano.
Componente essencial do sistema de temporização circadiano, o núcleo supraquiasmático (NSQ) possui três aferências principais: o trato retinohipotalâmico (TRH), o trato geniculohipotalâmico (TGH) e as terminações serotonérgicas da rafe. Suas células possuem oscilação circadiana autônoma que resultam na expressão rítmica dos chamados genes do
Publicado em: 2007
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24. Morfologia e ontogenese do pericarpo e da semente de Eugenia punicifolia (H. B. &K.) DC., Myrcia bella Camb. e Campomanesia pubescens (DC.) Berg (Myrtaceae) / Morphology and anatomy of the pericarp and sees of Eugenia punicifolia (H. B. &K.) DC., Myrcia bella Camb. and Campomanesia pubescens (DC.) Berg (Myrtaceae)
The Brazilian cerrado has been devastated and the structural aspects of the plants in this biome have been scarcely investigated considering its great diversity. In literature, there are no studies about the reproductive structures of the majority of the indigenous species of Myrtaceae, one of the most representative of the Brazilian flora and cerrados. Anal
Publicado em: 2007