title: Puberty influences stress reactivity in female catfish Rhamdia quelen.
abstract: We investigated a group of Rhamdia quelen females during their entire first reproductive cycle and beginning of the 2nd cycle by evaluating the stress response at different phases of gonadal maturation. In mammals, including humans, pubertal development modulates stress response reactivity due to the maturation of the neuroendocrine stress axis. These shifts in the stress reactivity were also detected in salmonid fishes. This effect comes from changes in the sensitivity of the stress axis glands or in the capacity of the adrenal tissue to synthesise glucocorticoids. Here, for the first time, we show that similar to mammals and salmonid fishes, pre-pubertal female R. quelen exhibit a protracted stress response compared to adult fish, pointing to puberty as a key event on HPI axis modulation.
authors.affiliation: Universidade de Passo Fundo (UPF), Programa de Pós-Graduação em Bioexperimentação, Campus I, Bairro São José, Caixa Postal 611, Passo Fundo, RS, Brazil. Electronic address: lbarcellos@upf.br.
authors.forename: Leonardo J G
authors.initials: LJ
authors.lastname: Barcellos
authors.affiliation: Universidade Federal de Santa Catarina (UFSC), Centro de Ciências Biológicas, Departamento de Morfologia, Campus Universitário Reitor João David Ferreira Lima, Trindade, Florianópolis, SC, Brazil. Electronic address: vwoehl@ccb.ufsc.br.
authors.forename: Viviane M
authors.initials: VM
authors.lastname: Woehl
authors.affiliation: Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Farmacologia, Campus Universitário, Camobi, Santa Maria, RS, Brazil. Electronic address: gessikoakoski@gmail.com.
authors.forename: Gessi
authors.initials: G
authors.lastname: Koakoski
authors.affiliation: Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Farmacologia, Campus Universitário, Camobi, Santa Maria, RS, Brazil. Electronic address: thiago_a.oliveira@hotmail.com.
authors.forename: Thiago A
authors.initials: TA
authors.lastname: Oliveira
authors.affiliation: Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Farmacologia, Campus Universitário, Camobi, Santa Maria, RS, Brazil. Electronic address: dferreira@upf.br.
authors.forename: Daiane
authors.initials: D
authors.lastname: Ferreira
authors.affiliation: Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Farmacologia, Campus Universitário, Camobi, Santa Maria, RS, Brazil. Electronic address: joaogabriel.sr@hotmail.com.
authors.forename: João Gabriel S
authors.initials: JG
authors.lastname: da Rosa
authors.affiliation: Universidade Federal de Santa Maria (UFSM), Programa de Pós-Graduação em Farmacologia, Campus Universitário, Camobi, Santa Maria, RS, Brazil. Electronic address: abreu.murilo@hotmail.com.
authors.forename: Murilo S
authors.initials: MS
authors.lastname: de Abreu
authors.affiliation: Universidade de Passo Fundo (UPF), Programa de Pós-Graduação em Bioexperimentação, Campus I, Bairro São José, Caixa Postal 611, Passo Fundo, RS, Brazil.
authors.forename: Rosmari Mezzalira
authors.initials: RM
authors.lastname: Quevedo
authors.affiliation: Universidade de Passo Fundo (UPF), Programa de Pós-Graduação em Bioexperimentação, Campus I, Bairro São José, Caixa Postal 611, Passo Fundo, RS, Brazil. Electronic address: michelefagundes@upf.br.
authors.forename: Michele
authors.initials: M
authors.lastname: Fagundes
mesh_terms: D000818:Animals; D002397:Catfishes / Q000502:physiology*; D004958:Estradiol / Q000097:blood; D005260:Female; D006854:Hydrocortisone / Q000097:blood; D012098:Reproduction / Q000502:physiology; D012741:Sexual Maturation / Q000502:physiology*; D013312:Stress, Physiological / Q000502:physiology*; D013739:Testosterone / Q000097:blood
chemical_list: D013739:Testosterone; D004958:Estradiol; D006854:Hydrocortisone
keywords: HPA responsiveness; Puberty; Reproductive cycle; Silver catfish; Stress reactivity