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| Cordeiro,L.M.S.; Rabelo,P.C.R.; Moraes,M.M.; Teixeira-Coelho,F.; Coimbra,C.C.; Wanner,S.P.; Soares,D.D.. |
| Brain serotonin and dopamine are neurotransmitters related to fatigue, a feeling that leads to reduced intensity or interruption of physical exercises, thereby regulating performance. The present review aims to present advances on the understanding of fatigue, which has recently been proposed as a defense mechanism instead of a “physiological failure” in the context of prolonged (aerobic) exercises. We also present recent advances on the association between serotonin, dopamine and fatigue. Experiments with rodents, which allow direct manipulation of brain serotonin and dopamine during exercise, clearly indicate that increased serotoninergic activity reduces performance, while increased dopaminergic activity is associated with increased performance.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brain; Lethargy; Monoamines; Performance; Physical activity; Reward. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200301 |
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| Cann Moisan, Christine; Nicolas, Laurence; Robert, Rene. |
| In the present study, norepinephrine (NE), epinephrine (E), dopamine (DA) and 5-hydroxy-tryptamine (5HT) have been quantified by high performance liquid chromatography (HPLC) in Pecten maximus during larval and post-larval development. With average values ranging from 2 to 5 pg mug(-1) of protein, NE remained low through the whole larval life, while epinephrine (E) was undetected. DA and 5HT were the most abundant monoamines with significant variations between larval, pre-metamorphic and post-larval stages. During the first 20 days, corresponding to D larval and umboned larval stages, levels of DA and 5HT increased from 15 to 30 and 10 to 15 pg mug(-1) of protein, respectively. Then during the last week of larval life, at the approach of metamorphosis, DA... |
| Tipo: Text |
Palavras-chave: Pecten maximus; Metamorphosis; Post larvae; Larvae; Monoamines. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-568.pdf |
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