[article] 
inDevelopment and Psychopathology > 35-3 (August 2023) . - p.1119-1129

Titre :	The phenotypic associations and gene-environment underpinnings of socioeconomic status and diurnal cortisol secretion in adolescence
Type de document :	Texte imprimé et/ou numérique
Auteurs :	Christina Y. CANTAVE, Auteur ; Mara BRENDGEN, Auteur ; Stéphane PAQUIN, Auteur ; Sonia LUPIEN, Auteur ; Ginette DIONNE, Auteur ; Frank VITARO, Auteur ; Michel BOIVIN, Auteur ; Isabelle OUELLET-MORIN, Auteur
Article en page(s) :	p.1119-1129
Langues :	Anglais (eng)
Mots-clés :	cortisol  gene-environment interactions  heritability  HPA-axis  socioeconomic status
Index. décimale :	PER Périodiques
Résumé :	While converging evidence suggests that both environmental and genetic factors underlie variations in diurnal cortisol, the extent to which these sources of influence vary according to socioeconomic status (SES) has seldom been investigated, particularly in adolescence. To investigate whether a distinct genetic and environmental contribution to youth?s diurnal cortisol secretion emerges according to family SES and whether the timing of these experiences matters. Participants were 592 twin pairs, who mostly came from middle-income and intact families and for whom SES was measured in childhood and adolescence. Diurnal cortisol was assessed at age 14 at awakening, 30 min later, in the afternoon and evening over four nonconsecutive days. SES-cortisol phenotypic associations were specific to the adolescence period. Specifically, higher awakening cortisol levels were detected in wealthier backgrounds, whereas higher cortisol awakening response (CAR) and diurnal changes were present at both ends of the SES continuum. Moreover, smaller genetic contributions emerged for awakening cortisol in youth from poorer compared to wealthier backgrounds. The results suggest that the relative contribution of inherited factors to awakening cortisol secretion may be enhanced or suppressed depending on the socio-family context, which may help to decipher the mechanisms underlying later adjustment.
En ligne :	http://dx.doi.org/10.1017/S0954579421001048
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510

[article] The phenotypic associations and gene-environment underpinnings of socioeconomic status and diurnal cortisol secretion in adolescence [Texte imprimé et/ou numérique] / Christina Y. CANTAVE, Auteur ; Mara BRENDGEN, Auteur ; Stéphane PAQUIN, Auteur ; Sonia LUPIEN, Auteur ; Ginette DIONNE, Auteur ; Frank VITARO, Auteur ; Michel BOIVIN, Auteur ; Isabelle OUELLET-MORIN, Auteur . - p.1119-1129.
Langues : Anglais (eng)
in Development and Psychopathology > 35-3 (August 2023) . - p.1119-1129

Mots-clés :	cortisol  gene-environment interactions  heritability  HPA-axis  socioeconomic status
Index. décimale :	PER Périodiques
Résumé :	While converging evidence suggests that both environmental and genetic factors underlie variations in diurnal cortisol, the extent to which these sources of influence vary according to socioeconomic status (SES) has seldom been investigated, particularly in adolescence. To investigate whether a distinct genetic and environmental contribution to youth?s diurnal cortisol secretion emerges according to family SES and whether the timing of these experiences matters. Participants were 592 twin pairs, who mostly came from middle-income and intact families and for whom SES was measured in childhood and adolescence. Diurnal cortisol was assessed at age 14 at awakening, 30 min later, in the afternoon and evening over four nonconsecutive days. SES-cortisol phenotypic associations were specific to the adolescence period. Specifically, higher awakening cortisol levels were detected in wealthier backgrounds, whereas higher cortisol awakening response (CAR) and diurnal changes were present at both ends of the SES continuum. Moreover, smaller genetic contributions emerged for awakening cortisol in youth from poorer compared to wealthier backgrounds. The results suggest that the relative contribution of inherited factors to awakening cortisol secretion may be enhanced or suppressed depending on the socio-family context, which may help to decipher the mechanisms underlying later adjustment.
En ligne :	http://dx.doi.org/10.1017/S0954579421001048
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=510