Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior

We interrogated the genetic modulation of maternal oxytocin response and its association with maternal behavior using genetic risk scores within the oxytocin receptor (OXTR) gene. We identified a novel SNP, rs968389, to be significantly associated with maternal oxytocin response after a challenging...

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Main Authors: Divya Mehta, Valsamma Eapen, Jane Kohlhoff, Antonio Mendoza Diaz, Bryanne Barnett, Derrick Silove, Mark R. Dadds
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2016/5740365
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author Divya Mehta
Valsamma Eapen
Jane Kohlhoff
Antonio Mendoza Diaz
Bryanne Barnett
Derrick Silove
Mark R. Dadds
author_facet Divya Mehta
Valsamma Eapen
Jane Kohlhoff
Antonio Mendoza Diaz
Bryanne Barnett
Derrick Silove
Mark R. Dadds
author_sort Divya Mehta
collection DOAJ
description We interrogated the genetic modulation of maternal oxytocin response and its association with maternal behavior using genetic risk scores within the oxytocin receptor (OXTR) gene. We identified a novel SNP, rs968389, to be significantly associated with maternal oxytocin response after a challenging mother-infant interaction task (Still Face Paradigm) and maternal separation anxiety from the infant. Performing a multiallelic analysis across OXTR by calculating a cumulative genetic risk score revealed a significant gene-by-environment (G×E) interaction, with OXTR genetic risk score interacting with adult separation anxiety to modulate levels of maternal sensitivity. Mothers with higher OXTR genetic risk score and adult separation anxiety showed significantly reduced levels of maternal sensitivity during free play with the infant. The same G×E interaction was also observed for the extended OXTR cumulative genetic risk score that included rs968389. Moreover, the extended cumulative OXTR genetic risk score itself was found to be significantly associated with maternal separation anxiety as it specifically relates to the infant. Our results suggest a complex montage of individual and synergistic genetic mediators of maternal behavior. These findings add to specific knowledge about genetic regulation of maternal oxytocin response in relation to maternal adjustment and infant bonding through the first few months of life.
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spelling doaj-art-17133ea61c0649b7b4a4218a0c9ec8042025-02-03T05:43:32ZengWileyNeural Plasticity2090-59041687-54432016-01-01201610.1155/2016/57403655740365Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal BehaviorDivya Mehta0Valsamma Eapen1Jane Kohlhoff2Antonio Mendoza Diaz3Bryanne Barnett4Derrick Silove5Mark R. Dadds6School of Psychology and Counseling, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, AustraliaSchool of Psychiatry, University of New South Wales, Sydney, NSW, AustraliaSchool of Psychiatry, University of New South Wales, Sydney, NSW, AustraliaSydney Child Behaviour Research Clinic, School of Psychology, University of Sydney, Sydney, NSW, AustraliaSchool of Psychiatry, University of New South Wales, Sydney, NSW, AustraliaSchool of Psychiatry, University of New South Wales, Sydney, NSW, AustraliaSydney Child Behaviour Research Clinic, School of Psychology, University of Sydney, Sydney, NSW, AustraliaWe interrogated the genetic modulation of maternal oxytocin response and its association with maternal behavior using genetic risk scores within the oxytocin receptor (OXTR) gene. We identified a novel SNP, rs968389, to be significantly associated with maternal oxytocin response after a challenging mother-infant interaction task (Still Face Paradigm) and maternal separation anxiety from the infant. Performing a multiallelic analysis across OXTR by calculating a cumulative genetic risk score revealed a significant gene-by-environment (G×E) interaction, with OXTR genetic risk score interacting with adult separation anxiety to modulate levels of maternal sensitivity. Mothers with higher OXTR genetic risk score and adult separation anxiety showed significantly reduced levels of maternal sensitivity during free play with the infant. The same G×E interaction was also observed for the extended OXTR cumulative genetic risk score that included rs968389. Moreover, the extended cumulative OXTR genetic risk score itself was found to be significantly associated with maternal separation anxiety as it specifically relates to the infant. Our results suggest a complex montage of individual and synergistic genetic mediators of maternal behavior. These findings add to specific knowledge about genetic regulation of maternal oxytocin response in relation to maternal adjustment and infant bonding through the first few months of life.http://dx.doi.org/10.1155/2016/5740365
spellingShingle Divya Mehta
Valsamma Eapen
Jane Kohlhoff
Antonio Mendoza Diaz
Bryanne Barnett
Derrick Silove
Mark R. Dadds
Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior
Neural Plasticity
title Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior
title_full Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior
title_fullStr Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior
title_full_unstemmed Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior
title_short Genetic Regulation of Maternal Oxytocin Response and Its Influences on Maternal Behavior
title_sort genetic regulation of maternal oxytocin response and its influences on maternal behavior
url http://dx.doi.org/10.1155/2016/5740365
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