Association between childhood maltreatment and adult emotional dysregulation in a low-income, urban, African American sample: Moderation by oxytocin receptor gene

• Type of Material: Article
• Authors: Bekh Bradley-Davino, Emory University; Drew Westen, Emory University; Kristina B. Mercer, Howard Hughes Medical Institute; Elisabeth Binder, Emory University; Tanja Jovanovic, Emory University; Daniel Crain, Emory University; Aliza Wingo, Emory University; Christine Heim, Emory University
• Language: English
• Date: 2011-05-01
• Publisher: Cambridge University Press (CUP): STM Journals
• Publication Version: Author Accepted Manuscript (After Peer Review)
• Copyright Statement: © 2011 Cambridge University Press.
• Final Published Version (URL): http://dx.doi.org/10.1017/S0954579411000162
• Title of Journal or Parent Work: Development and Psychopathology
• ISSN: 0954-5794
• Volume: 23
• Issue: 2
• Start Page: 439
• End Page: 452
• Grant/Funding Information: Support was also received from the Emory and Grady Memorial Hospital General Clinical Research Center, NIH National Centers for Research Resources (M01RR00039), the American Foundation for Suicide Prevention (BB), and the Burroughs Wellcome Fund.; This work was supported by a research fellowship award from the American Psychiatric Institute for Research & Education and NIH Grant UL RR025008 (to A.P.W.) and the National Institutes of Mental Health (MH071537).
• Keywords: DEVELOPMENTAL PSYCHOPATHOLOGY; DISORIENTED ATTACHMENT RELATIONSHIPS; DISORGANIZED ATTACHMENT; Psychology, Developmental; DIFFERENTIAL SUSCEPTIBILITY; INFANT ATTACHMENT; Psychology; BORDERLINE PERSONALITY-DISORDER; Social Sciences; POSTTRAUMATIC-STRESS-DISORDER; PREVENTIVE INTERVENTIONS; MATERNAL-BEHAVIOR; ASSESSING AXIS II
• Research Categories: Health Sciences, Public Health; Sociology, Ethnic and Racial Studies

Abstract

The ability to effectively regulate emotions and a secure attachment style are critical for maintaining mental health across the life span. The experience of childhood maltreatment interferes with normal development of emotional regulation and dramatically increases risk for a wide range of psychiatric disorders in adulthood. The central nervous system oxytocin systems are critically involved in mediating social attachment and buffering psychophysiological responses to stress. We therefore investigated the impact of childhood maltreatment and an oxytocin receptor (OXTR) single nucleotide polymorphism (rs53576) and their interaction on emotional dysregulation and attachment style in adulthood in a sample of low-income, African American men and women recruited from primary care clinics of an urban, public hospital. Consistent with prior research, we found that the severity of childhood maltreatment was associated with increased levels of emotional dysregulation in adulthood. Childhood maltreatment was also positively associated with ratings of disorganized/unresolved adult attachment style and negatively associated with ratings of secure adult attachment style. There was no direct association between rs53576 and emotional dysregulation or ratings of adult attachment style. However, there were significant interactions between rs53576 and childhood maltreatment in predicting level of adult emotional dysregulation and attachment style. Specifically, G/G genotype carriers were at risk for increased emotional dysregulation when exposed to three or more categories of childhood abuse. In addition, G/G genotype carriers exhibited enhanced disorganized adult attachment style when exposed to severe childhood abuse compared to A/A and A/G carriers. Our findings suggest that A allele carriers of OXTR rs53576 are resilient against the effects of severe childhood adversity, by protection against emotional dysregulation and disorganized attachment.