Gender differences in aggression and cortisol levels in zebrafish subjected to unpredictable chronic stress

被引：96
|
作者：
Rambo, Cassiano L. [1 ]
Mocelin, Ricieri [2 ]
Marcon, Matheus [2 ]
Villanova, Debora [2 ]
Koakoski, Gessi [3 ]
de Abreu, Murilo S. [3 ]
Oliveira, Thiago A. [3 ]
Barcellos, Leonardo J. G. [3 ,4 ]
Piato, Angelo L. [2 ]
Bonan, Carla D. [1 ]
机构：
[1] Pontificia Univ Catolica Rio Grande do Sul, Lab Neuroquim & Psicofarmacol, Programa Posgrad Biol Celular & Mol, Av Ipiranga 6681, BR-90619900 Porto Alegre, RS, Brazil
[2] Univ Fed Rio Grande do Sul, Lab Psicofarmacol & Comportamento, Programa Posgrad Neurociencias, Av Sarmento Leite 500-107, BR-90050170 Porto Alegre, RS, Brazil
[3] Univ Fed Santa Maria, Programa Posgrad Farmacol, Campus Univ, BR-97105900 Santa Maria, RS, Brazil
[4] Univ Passo Fundo, Programa Posgrad Bioexpt, BR 285, BR-99052900 Passo Fundo, RS, Brazil
来源：
PHYSIOLOGY & BEHAVIOR | 2017年 / 171卷
关键词：
Aggression; Cortisol; Gender differences; Unpredictable chronic stress; BEHAVIOR GENETIC MODEL; REPEATED SOCIAL STRESS; DANIO-RERIO; GOLDEN-HAMSTERS; INDIVIDUAL-DIFFERENCES; AGONISTIC BEHAVIOR; SYRIAN-HAMSTERS; SEX-DIFFERENCES; RESPONSES; FISH;
D O I：
10.1016/j.physbeh.2016.12.032
中图分类号：
B84 [心理学];
学科分类号：
04 ; 0402 ;
摘要：
Chronic stress may cause physical, behavioral and neuropsychiatric changes, affecting the health condition of an individual. Aggression is a universal behavior with great relevance on human and animal social systems. Despite studies showing the influence of chronic stress on aggression, the effects of unpredictable chronic stress (UCS) on aggressive behavior in male and female zebrafish remain unknown. Thus, the aim of this study was to evaluate the effects of UCS on the aggressive behavior and cortisol levels in adult zebrafish of both sexes. Our results showed that UCS increased aggression in males, but not in females, which displayed more aggressive behavior at baseline than control males. Increased whole-body cortisol levels were observed in stressed males; however, no differences were found between female groups. In conclusion, we reported for the first time gender differences on behavioral parameters and cortisol levels in response to UCS in zebrafish. These results highlight the relevance of studying behavioral and physiological parameters in both sexes separately. (C) 2016 Elsevier Inc All rights reserved.
引用
收藏
页码：50 / 54
页数：5
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