Your browser doesn't support javascript.
loading
The timing of adrenarche in Maya girls, Merida, Mexico.
Keestra, Sarai M; Bentley, Gillian R; Núñez-de la Mora, Alejandra; Houghton, Lauren C; Wilson, Hannah; Vázquez-Vázquez, Adriana; Cooper, Gillian D; Dickinson, Federico; Griffiths, Paula; Bogin, Barry A; Varela-Silva, Maria Inês.
Afiliação
  • Keestra SM; Department of Anthropology, Durham University, Durham, UK.
  • Bentley GR; Department of Anthropology, Durham University, Durham, UK.
  • Núñez-de la Mora A; Instituto Investigaciones Psicológicas, Universidad Veracruzana, Mexico.
  • Houghton LC; Mailman School of Public Health, Columbia University, USA.
  • Wilson H; Telligen, Des Moines, Iowa, USA.
  • Vázquez-Vázquez A; Childhood Nutrition Research Centre (CNRC), University College London, UK.
  • Cooper GD; Department of Biostatistics, University of Liverpool, UK.
  • Dickinson F; Department of Human Ecology, Centre for Research and Advanced Studies of the National Polytechnic Institute Cinvestav (Merida), Mexico.
  • Griffiths P; School of Sport, Exercise and Health Sciences, Loughborough University, UK.
  • Bogin BA; School of Sport, Exercise and Health Sciences, Loughborough University, UK.
  • Varela-Silva MI; UCSD/Salk Center for Academic Research and Training in Anthropogeny (CARTA), USA.
Am J Hum Biol ; 33(2): e23465, 2021 03.
Article em En | MEDLINE | ID: mdl-32643208
BACKGROUND: Adrenarche involves maturation of the hypothalamic-pituitary-adrenal axis and increased production of dehydroepiandrosterone and its sulfate ester, dehydroepiandrosterone-sulfate (DHEA-S). It occurs at ages 6 to 8 in industrialized populations, marking the transition from childhood to juvenility and cognitive development at middle childhood. Studies in subsistence level populations indicate a later age (8-9) for adrenarche, but only two such studies currently exist for comparison. AIMS: To investigate adrenarcheal age among Maya girls and its association with body composition and dietary variables. We hypothesized adrenarche would occur earlier given the current dual burden of nutrition in Mexico. MATERIALS AND METHODS: 25 Maya girls aged 7 to 9 from Merida, Mexico using ELISAs to measure salivary DHEA-S, standard anthropometry for height, weight, and skinfolds, bioelectrical impedance for body composition variables, as well as a food frequency questionnaire for dietary information. RESULTS: Our hypothesis was rejected-adrenarche occurred close to 9 years. While no measures of body composition were significantly associated with adrenarcheal status, girls eating meat and dairy products more frequently had significantly higher DHEA-S levels. DISCUSSION: Like other populations living in ecologically challenging environments, adrenarche occurred relatively late among Maya girls. Adrenarche has been linked to measures of body composition, particularly, the adiposity or body mass index rebound, but no relevant anthropometric measures were associated, possibly because of the small sample. CONCLUSION: Further studies are required to illuminate how adrenarcheal variation relates to developmental plasticity, body composition, pubertal progression, and animal product consumption in other transitional populations.
Assuntos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Composição Corporal / Estado Nutricional / Dieta / Adrenarca Limite: Child / Female / Humans País/Região como assunto: Mexico Idioma: En Revista: Am J Hum Biol Assunto da revista: BIOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Composição Corporal / Estado Nutricional / Dieta / Adrenarca Limite: Child / Female / Humans País/Região como assunto: Mexico Idioma: En Revista: Am J Hum Biol Assunto da revista: BIOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de publicação: Estados Unidos