Neuroimaging and DNA Methylation: An Innovative Approach to Study the Effects of Early Life Stress on Developmental Plasticity

Frontiers in Psychology

article

Isabella Lucia Chiara Mariani Wigley¹  Eleonora Mascheroni²  Denis Peruzzo³  Roberto Giorda⁴  Sabrina Bonichini¹  Rosario Montirosso² 

[1] Department of Developmental and Social Psychology, University of Padua;0-3 Center for the At-Risk Infant, Scientific Institute;Neuroimaging Lab, Scientific Institute;Molecular Biology Laboratory, Scientific Institute

关键词: DNA methylation;    developmental plasticity;    neuroimaging;    early life stress;    neuroimaging epigenetics;   

DOI  :  10.3389/fpsyg.2021.672786

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

DNA methylation plays a key role in neural cell fate and provides a molecular link between early life stress and later-life behavioral phenotypes. Here, studies that combine neuroimaging methods and DNA methylation analysis in pediatric population with a history of adverse experiences were systematically reviewed focusing on: targeted genes and neural correlates; statistical models used to examine the link between DNA methylation and neuroimaging data also considering early life stress and behavioral outcomes. We identified 8 studies that report associations between DNA methylation and brain structure/functions in infants, school age children and adolescents faced with early life stress condition (e.g., preterm birth, childhood maltreatment, low socioeconomic status, and less-than optimal caregiving). Results showed that several genes were investigated (e.g., OXTR , SLC6A4 , FKBP5 , and BDNF ) and different neuroimaging techniques were performed (MRI and f -NIRS). Statistical model used ranged from correlational to more complex moderated mediation models. Most of the studies ( n = 5) considered DNA methylation and neural correlates as mediators in the relationship between early life stress and behavioral phenotypes. Understanding what role DNA methylation and neural correlates play in interaction with early life stress and behavioral outcomes is crucial to promote theory-driven studies as the future direction of this research fields.

【 授权许可】

CC BY