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A multilevel prediction of physiological response to challenge: Interactions among child maltreatment, neighborhood crime, endothelial nitric oxide synthase gene (eNOS), and GABA(A) receptor subunit alpha-6 gene (GABRA6)

Published online by Cambridge University Press:  04 November 2015

Michael Lynch ,
Jody Todd Manly  and
Dante Cicchetti
Michael Lynch*
Affiliation:
State University of New York Geneseo
Jody Todd Manly
Affiliation:
University of Rochester Mt. Hope Family Center
Dante Cicchetti
Affiliation:
University of Minnesota Institute of Child Development
*
Address correspondence and reprint requests to: Michael Lynch, Department of Psychology, State University of New York Geneseo, 1 College Circle, Geneseo, NY 14454. E-mail: [email protected].
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Abstract

Physiological response to stress has been linked to a variety of healthy and pathological conditions. The current study conducted a multilevel examination of interactions among environmental toxins (i.e., neighborhood crime and child maltreatment) and specific genetic polymorphisms of the endothelial nitric oxide synthase gene (eNOS) and GABA(A) receptor subunit alpha-6 gene (GABRA6). One hundred eighty-six children were recruited at age 4. The presence or absence of child maltreatment as well as the amount of crime that occurred in their neighborhood during the previous year were determined at that time. At age 9, the children were brought to the lab, where their physiological response to a cognitive challenge (i.e., change in the amplitude of the respiratory sinus arrhythmia) was assessed and DNA samples were collected for subsequent genotyping. The results confirmed that complex Gene × Gene, Environment × Environment, and Gene × Environment interactions were associated with different patterns of respiratory sinus arrhythmia reactivity. The implications for future research and evidence-based intervention are discussed.

Type
Regular Articles
Information
Development and Psychopathology , Volume 27 , Special Issue 4pt2: Multilevel Developmental Perspectives on Child Maltreatment , November 2015 , pp. 1471 - 1487
Copyright
Copyright © Cambridge University Press 2015 

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