Modulation of nociceptive-like behavior in zebrafish (Danio rerio) by environmental stressors
Psychol. neurosci. (Impr.)
;
4(1): 149-155, Jan.-June 2011. graf
Artigo
em Inglês
| LILACS
| ID: lil-604544
ABSTRACT
Zebrafish have been demonstrated to react consistently to noxious chemical stimuli and present reliable phenotypes of stress, fear, and anxiety. In this article, we describe the modulation of nociceptive-like responses of zebrafish to fear-, stress-, and anxiety-eliciting situations. Animals were exposed to an alarm substance, confinement stress, or a novel environment before being injected with 1 percent acetic acid in the tail. The alarm substance and confinement stress reduced the display of erratic movements and tail-beating behavior elicited by acetic acid. The novelty of the environment, in contrast, increased the frequency of tail-beating behavior. The results suggest that descending modulatory control of nociception exists in zebrafish, with apparent fear- and stress-induced analgesia and anxiety-induced hyperalgesia.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Ansiedade
/
Estresse Psicológico
/
Peixe-Zebra
/
Nociceptores
Limite:
Animais
Idioma:
Inglês
Revista:
Psychol. neurosci. (Impr.)
Assunto da revista:
Neurologia
/
Psicologia
Ano de publicação:
2011
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal do Pará/BR
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