Dataset Information

A Role of Oxytocin Receptor Gene Brain Tissue Expression Quantitative Trait Locus rs237895 in the Intergenerational Transmission of the Effects of Maternal Childhood Maltreatment.

ABSTRACT:

Objective

Women exposed to childhood maltreatment (CM) are more likely to exhibit insensitive parenting, which may have consequences for their offspring's development. Variation in the oxytocin-receptor gene (OXTR) moderates risk of CM-associated long-term sequelae associated with mother-child attachment, although functionality of previously investigated single nucleotide polymorphisms (SNPs) remained elusive. Here, we investigated the role of OXTR rs237895, a brain tissue expression quantitative trait locus (eQTL), as a moderator of the relationship between CM and maternal behavior (MB) and the association between MB and offspring attachment security.

Method

Of 110 women with information on rs237895 genotype (T-allele = 64, CC = 46), 107 had information on CM (CTQ) and 99 on standardized observer-based ratings of MB at 6 months postpartum (responsivity and detachment), which were used in principal component analysis to obtain a latent factor representing MB. Offspring (n = 86) attachment was evaluated at 12 months of age. Analyses predicting MB were adjusted for socioeconomic status, age, postpartum depression, and genotype-based ethnicity. Analyses predicting child attachment were adjusted for infant sex, socioeconomic status, and postpartum depression.

Results

rs237895 significantly moderated the relationship between CM and MB (F_1;66 = 7.99, p < .01), indicating that CM was associated with maternal insensitivity only in high-OXTR-expressing T-allele carriers but not in low-OXTR-expressing CC homozygotes. Moreover, maternal insensitivity predicted offspring insecure attachment (B = -0.551; p < .05).

Conclusion

Women with a high OXTR expressing genotype are more susceptible to CM-related impairments in MB that, in turn, predict attachment security in their children, supporting the role of the OT system in the intergenerational transmission of risk associated with maternal CM.

SUBMITTER: Toepfer P

PROVIDER: S-EPMC6733663 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

A Role of Oxytocin Receptor Gene Brain Tissue Expression Quantitative Trait Locus rs237895 in the Intergenerational Transmission of the Effects of Maternal Childhood Maltreatment.

Toepfer Philipp P O'Donnell Kieran J KJ Entringer Sonja S Heim Christine M CM Lin David T S DTS MacIsaac Julia L JL Kobor Michael S MS Meaney Michael J MJ Provençal Nadine N Binder Elisabeth B EB Wadhwa Pathik D PD Buss Claudia C

Journal of the American Academy of Child and Adolescent Psychiatry 20190309 12

<h4>Objective</h4>Women exposed to childhood maltreatment (CM) are more likely to exhibit insensitive parenting, which may have consequences for their offspring's development. Variation in the oxytocin-receptor gene (OXTR) moderates risk of CM-associated long-term sequelae associated with mother-child attachment, although functionality of previously investigated single nucleotide polymorphisms (SNPs) remained elusive. Here, we investigated the role of OXTR rs237895, a brain tissue expression qua ...[more]

PMID: 30858011

Similar Datasets

Project description:BackgroundChildhood maltreatment is associated with adverse health outcomes and this risk can be transmitted to the next generation. We aimed to investigate the association between exposure to maternal childhood maltreatment and common childhood physical and mental health problems, neurodevelopmental disorders, and related comorbidity patterns in offspring.MethodsWe conducted a retrospective cohort study using data from the Environmental influences on Child Health Outcomes (ECHO) Program, which was launched to investigate the influence of early life exposures on child health and development in 69 cohorts across the USA. Eligible mother-child dyads were those with available data on maternal childhood maltreatment exposure and at least one child health outcome measure (autism spectrum disorder, attention-deficit hyperactivity disorder [ADHD], internalising problems, obesity, allergy, and asthma diagnoses). Maternal history of childhood maltreatment was obtained retrospectively from the Adverse Childhood Experiences or Life Stressor Checklist questionnaires. We derived the prevalence of the specified child health outcome measures in offspring across childhood and adolescence by harmonising caregiver reports and other relevant sources (such as medical records) across cohorts. Child internalising symptoms were assessed using the Child Behavior Checklist. Associations between maternal childhood maltreatment and childhood health outcomes were measured using a series of mixed-effects logistic regression models. Covariates included child sex (male or female), race, and ethnicity; maternal and paternal age; maternal education; combined annual household income; maternal diagnosis of depression, asthma, ADHD, allergy, or autism spectrum disorder; and maternal obesity. Two latent class analyses were conducted: to characterise patterns of comorbidity of child health outcomes; and to characterise patterns of co-occurrence of childhood maltreatment subtypes. We then investigated the association between latent class membership and maternal childhood maltreatment and child health outcomes, respectively.FindingsOur sample included 4337 mother-child dyads from 21 longitudinal cohorts (with data collection initiated between 1999 and 2016). Of 3954 mothers in the study, 1742 (44%) had experienced exposure to abuse or neglect during their childhood. After adjustment for confounding, mothers who experienced childhood maltreatment were more likely to have children with internalising problems in the clinical range (odds ratio [OR] 2·70 [95% CI 1·95-3·72], p<0·0001), autism spectrum disorder (1·70 [1·13-2·55], p=0·01), ADHD (2·09 [1·63-2·67], p<0·0001), and asthma (1·54 [1·34-1·77], p<0·0001). In female offspring, maternal childhood maltreatment was associated with a higher prevalence of obesity (1·69 [1·17-2·44], p=0·005). Children of mothers exposed to childhood maltreatment were more likely to exhibit a diagnostic pattern characterised by higher risk for multimorbidity. Exposure to multiple forms of maltreatment across all subtypes of maternal childhood maltreatment was associated with the highest risk increases for most offspring health outcomes, suggesting a dose-response relationship.InterpretationOur findings suggest that maternal childhood maltreatment experiences can be a risk factor for disease susceptibility in offspring across a variety of outcomes and emphasise the need for policies focusing on breaking the intergenerational transmission of adversity.FundingEnvironmental influences on Child Health Outcomes Program, Office of the Director, National Institutes of Health.

Project description:BackgroundStudies indicate that the children of mothers who have eating disorders are at an increased risk of developing eating disorders themselves. The aim of this qualitative study was to broaden and extend current understandings of the experiences of mothers with eating disorders. The present report focuses on maternal perspectives, experiences, and support needs in relation to the intergenerational transmission of eating disorders.MethodSemi-structured online interviews were conducted with parents living in the UK, USA, and Australia. Participants were eighteen mothers with a self-reported lifetime diagnosis of one or more eating disorders, who had experienced symptoms since becoming a parent, and who had at least one child aged 2 years or older. Data were analysed using reflexive thematic analysis.ResultsFour major themes relating to the impacts of having an eating disorder on children and intergenerational transmission were identified. These were: impacts (maternal perspectives on the ways having an eating disorder impacted their children, and their reflections around having been impacted by their own parents); breaking the cycle (strategies employed by mothers in efforts to prevent their children developing eating disorders of their own); communicating about the eating disorder (maternal experiences around disclosing or not disclosing having an eating disorder to their children); and support needs (maternal and perceived familial support needs in relation to breaking cycles of intergenerational transmission).ConclusionsFor mothers with eating disorders, concerns about the potential impacts on their children and fears about intergenerational transmission are salient, and these may vary for children at different ages. The mothers who participated in our study described engaging in a number of conscious strategies in efforts to manage the risks of eating disorder development in their children, but implementing these strategies was not without challenges. Implications for preventative programs to reduce the intergenerational transmission of eating disorders are discussed.

Dataset Information

A Role of Oxytocin Receptor Gene Brain Tissue Expression Quantitative Trait Locus rs237895 in the Intergenerational Transmission of the Effects of Maternal Childhood Maltreatment.

Objective

Method

Results

Conclusion

Publications

A Role of Oxytocin Receptor Gene Brain Tissue Expression Quantitative Trait Locus rs237895 in the Intergenerational Transmission of the Effects of Maternal Childhood Maltreatment.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets