Early life stress is associated with earlier emergence of permanent molars.
Proc Natl Acad Sci U S A
; 118(24)2021 06 15.
Article
de En
| MEDLINE
| ID: mdl-34103399
ABSTRACT
Exposure to adversity can accelerate biological aging. However, existing biomarkers of early aging are either costly and difficult to collect, like epigenetic signatures, or cannot be detected until late childhood, like pubertal onset. We evaluated the hypothesis that early adversity is associated with earlier molar eruption, an easily assessed measure that has been used to track the length of childhood across primates. In a preregistered analysis (n = 117, ages 4 to 7 y), we demonstrate that lower family income and exposure to adverse childhood experiences (ACEs) are significantly associated with earlier eruption of the first permanent molars, as rated in T2-weighted magnetic resonance images (MRI). We replicate relationships between income and molar eruption in a population-representative dataset (National Health and Nutrition Examination Survey; n = 1,973). These findings suggest that the impact of stress on the pace of biological development is evident in early childhood, and detectable in the timing of molar eruption.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Expériences défavorables de l'enfance
/
Molaire
Type d'étude:
Risk_factors_studies
Limites:
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Langue:
En
Journal:
Proc Natl Acad Sci U S A
Année:
2021
Type de document:
Article