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Registros recuperados: 22
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Dopaminergic modulation of grooming behavior in virgin and pregnant rats BJMBR
Serafim,A.P.; Felicio,L.F..
Dopamine receptors are involved in the expression of grooming behavior. The pregnancy-induced increase in self-licking observed in rats is important for mammary gland development and lactation. This study focuses on the role of dopamine receptor subtypes in grooming behavior of virgin and pregnant female rats. General and mammary gland grooming were measured in virgin rats treated with 0.25 mg/kg of the D1-like agonist SKF-81297 and antagonist SKF-83566 and the D2-like agonist lisuride and antagonist sulpiride. The effects of 0.01 and 0.25 mg/kg doses of the same agonists and antagonists were evaluated in pregnant rats as well. In virgin animals both SKF-83566 and sulpiride treatments significantly reduced the time spent in general grooming, while none of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Self-licking; Lisuride; SKF-81297; SKF-83566; Sulpiride; Mammary gland; Prolactin; Dopamine.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001100015
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Changes in the biogenic amine content of the prefrontal cortex, amygdala, dorsal hippocampus, and nucleus accumbens of rats submitted to single and repeated sessions of the elevated plus-maze test BJMBR
Carvalho,M.C.; Albrechet-Souza,L.; Masson,S.; Brandão,M.L..
It has been demonstrated that exposure to a variety of stressful experiences enhances fearful reactions when behavior is tested in current animal models of anxiety. Until now, no study has examined the neurochemical changes during the test and retest sessions of rats submitted to the elevated plus maze (EPM). The present study uses a new approach (HPLC) by looking at the changes in dopamine and serotonin levels in the prefrontal cortex, amygdala, dorsal hippocampus, and nucleus accumbens in animals upon single or double exposure to the EPM (one-trial tolerance). The study involved two experiments: i) saline or midazolam (0.5 mg/kg) before the first trial, and ii) saline or midazolam before the second trial. For the biochemical analysis a control group...
Tipo: Info:eu-repo/semantics/article Palavras-chave: One-trial tolerance; Dopamine; Serotonin; Prefrontal cortex; Amygdala; Hippocampus.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001200014
Registros recuperados: 22
Primeira ... 12 ... Última
 

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