Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)

The input of environmental time cues and expression of circadian activity rhythms may change with aging. Among nonphotic zeitgebers, social cues from conspecific vocalizations may contribute to the stability and survival of individuals of social species, such as nonhuman primates. We evaluated aging...

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Principais autores: Gonçalves, Fabiana Barbosa, Gonçalves, Bruno S. B., Cavalcante, Jeferson de Souza, Azevedo, Carolina Virginia Macedo de
Formato: article
Idioma:English
Publicado em: Taylor and Francis
Assuntos:
Circadian activity rhythm
Aging
Social entrainment
Nonphotic cues
Behavioral rhythms
Marmosets
Endereço do item:https://repositorio.ufrn.br/handle/123456789/31000
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spelling ri-123456789-310002020-12-20T07:59:08Z Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus) Gonçalves, Fabiana Barbosa Gonçalves, Bruno S. B. Cavalcante, Jeferson de Souza Azevedo, Carolina Virginia Macedo de Circadian activity rhythm Aging Social entrainment Nonphotic cues Behavioral rhythms Marmosets The input of environmental time cues and expression of circadian activity rhythms may change with aging. Among nonphotic zeitgebers, social cues from conspecific vocalizations may contribute to the stability and survival of individuals of social species, such as nonhuman primates. We evaluated aging- related changes on social synchronization of the circadian activity rhythm (CAR) in a social diurnal primate, the common marmoset. The activity of 18 male marmosets was recorded by actiwatches in two conditions. (1) Experimental – 4 young adult (5 ± 2 yrs of age) and 4 older (10 ± 2 yrs of age) animals maintained under LD 12/12 h and LL in a room with full insulation for light but only partial insulation for sound from vocalizations of conspecifics maintained outdoors in the colony; and (2) Control – 10 young adult animals maintained outdoors in the colony (5 animals as a control per age group). In LL, the CAR of young adults showed more stable synchronization with controls. Among the aged marmosets, two free-ran with τ > 24 h, whereas the other two showed relative coordination during the first 30 days in LL, but free-ran thereafter. These differences were reflected in the “social” phase angles (ψon and ψoff) between rhythms of experimental and control animal groups. Moreover, the activity patterns of aged animals showed lower social synchrony with controls compared to young adults, with the time lags of the time series between each experimental group and control group being negative in aged and positive in young adult animals (t-test, p < 0.05). The index of stability of the CAR showed no differences according to age, while the intradaily variability of the CAR was higher in the aged animals during LD-resynchronization, who took additional days to resynchronize. Thus, the social modulation on CAR may vary with age in marmosets. In the aged group, there was a lower effect of social synchronization, which may be associated with aging-related changes in the synchro- nization and generation of the CAR as well as in system outputs 2020-12-15T18:00:00Z 2020-12-15T18:00:00Z 2020-06-23 article GONÇALVES, Fabiana Barbosa; GONÇALVES, Bruno S. B.; CAVALCANTE, Jeferson de Souza; AZEVEDO, Carolina Virginia Macedo de. Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus). Chronobiology International, [s. l.], v. 37, n. 7, p. 980-992, 23 jun. 2020. Disponível em: https://www.tandfonline.com/doi/abs/10.1080/07420528.2020.1773495?journalCode=icbi20. Acesso em: 04 nov. 2020. http://dx.doi.org/10.1080/07420528.2020.1773495. 0742-0528 1525-6073 https://repositorio.ufrn.br/handle/123456789/31000 10.1080/07420528.2020.1773495. en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Taylor and Francis
institution Repositório Institucional
collection RI - UFRN
language English
topic Circadian activity rhythm
Aging
Social entrainment
Nonphotic cues
Behavioral rhythms
Marmosets
spellingShingle Circadian activity rhythm
Aging
Social entrainment
Nonphotic cues
Behavioral rhythms
Marmosets
Gonçalves, Fabiana Barbosa
Gonçalves, Bruno S. B.
Cavalcante, Jeferson de Souza
Azevedo, Carolina Virginia Macedo de
Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
description The input of environmental time cues and expression of circadian activity rhythms may change with aging. Among nonphotic zeitgebers, social cues from conspecific vocalizations may contribute to the stability and survival of individuals of social species, such as nonhuman primates. We evaluated aging- related changes on social synchronization of the circadian activity rhythm (CAR) in a social diurnal primate, the common marmoset. The activity of 18 male marmosets was recorded by actiwatches in two conditions. (1) Experimental – 4 young adult (5 ± 2 yrs of age) and 4 older (10 ± 2 yrs of age) animals maintained under LD 12/12 h and LL in a room with full insulation for light but only partial insulation for sound from vocalizations of conspecifics maintained outdoors in the colony; and (2) Control – 10 young adult animals maintained outdoors in the colony (5 animals as a control per age group). In LL, the CAR of young adults showed more stable synchronization with controls. Among the aged marmosets, two free-ran with τ > 24 h, whereas the other two showed relative coordination during the first 30 days in LL, but free-ran thereafter. These differences were reflected in the “social” phase angles (ψon and ψoff) between rhythms of experimental and control animal groups. Moreover, the activity patterns of aged animals showed lower social synchrony with controls compared to young adults, with the time lags of the time series between each experimental group and control group being negative in aged and positive in young adult animals (t-test, p < 0.05). The index of stability of the CAR showed no differences according to age, while the intradaily variability of the CAR was higher in the aged animals during LD-resynchronization, who took additional days to resynchronize. Thus, the social modulation on CAR may vary with age in marmosets. In the aged group, there was a lower effect of social synchronization, which may be associated with aging-related changes in the synchro- nization and generation of the CAR as well as in system outputs
format article
author Gonçalves, Fabiana Barbosa
Gonçalves, Bruno S. B.
Cavalcante, Jeferson de Souza
Azevedo, Carolina Virginia Macedo de
author_facet Gonçalves, Fabiana Barbosa
Gonçalves, Bruno S. B.
Cavalcante, Jeferson de Souza
Azevedo, Carolina Virginia Macedo de
author_sort Gonçalves, Fabiana Barbosa
title Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
title_short Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
title_full Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
title_fullStr Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
title_full_unstemmed Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
title_sort aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (callithrix jacchus)
publisher Taylor and Francis
publishDate 2020
url https://repositorio.ufrn.br/handle/123456789/31000
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