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Maternal and paternal effects on offspring internalizing problems: Results from genetic and family-based analyses.

ABSTRACT: It is unclear to what extent parental influences on the development of internalizing problems in offspring are explained by indirect genetic effects, reflected in the environment provided by the parent, in addition to the genes transmitted from parent to child. In this study, these effects were investigated using two innovative methods in a large birth cohort. Using maternal-effects genome complex trait analysis (M-GCTA), the effects of offspring genotype, maternal or paternal genotypes, and their covariance on offspring internalizing problems were estimated in 3,801 mother-father-child genotyped trios. Next, estimated genetic correlations within pedigree data, including 10,688 children, were used to estimate additive genetic effects, maternal and paternal genetic effects, and a shared family effect using linear mixed effects modeling. There were no significant maternal or paternal genetic effects on offspring anxiety or depressive symptoms at age 8, beyond the effects transmitted via the genetic pathway between parents and children. However, indirect maternal genetic effects explained a small, but nonsignificant, proportion of variance in childhood depressive symptoms in both the M-GCTA (~4%) and pedigree (~8%) analyses. Our results suggest that parental effects on offspring internalizing problems are predominantly due to transmitted genetic variants, rather than the indirect effect of parental genes via the environment.

SUBMITTER: Jami ES

PROVIDER: S-EPMC7317352 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Maternal and paternal effects on offspring internalizing problems: Results from genetic and family-based analyses.

Jami Eshim S ES Eilertsen Espen Moen EM Hammerschlag Anke R AR Qiao Zhen Z Evans David M DM Ystrøm Eivind E Bartels Meike M Middeldorp Christel M CM

American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics 20200501 5

It is unclear to what extent parental influences on the development of internalizing problems in offspring are explained by indirect genetic effects, reflected in the environment provided by the parent, in addition to the genes transmitted from parent to child. In this study, these effects were investigated using two innovative methods in a large birth cohort. Using maternal-effects genome complex trait analysis (M-GCTA), the effects of offspring genotype, maternal or paternal genotypes, and the ...[more]

PMID: 32356930

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Project description:BackgroundResearch on parent-level factors linked to adolescent attachment security would inform interventions to prevent or reduce youth psychopathology and other negative outcomes. The current study examined one relevant parent-level variable: maternal interpersonal problems. Interpersonal problems, a key characteristic of personality pathology, are well described by the interpersonal circumplex (IPC) and have been shown to be associated with maladaptive adult attachment in close/romantic relationships; however, studies have not examined relationships with offspring attachment. Therefore, the first aim of the current study was to examine the relationship between maternal interpersonal problems and adolescent attachment insecurity. Based on previous evidence that parents' recalled bonding with caregivers is associated with the quality of bonding and attachment with offspring, the second aim was to examine whether mothers' recalled bonding with their own mothers partially explained this relationship.MethodsParticipants included 351 psychiatric inpatient adolescents (Mage = 15.26, 64.1% female) and their biological mothers. Logistic regressions tested whether maternal interpersonal problems were associated with Child Attachment Interview classifications (secure vs. insecure; secure vs. preoccupied vs. dismissing; not disorganized vs. disorganized). A mediation model (N = 210) tested whether the relationship between maternal interpersonal problems and adolescent attachment was mediated by the mother's recalled maternal bonding.ResultsMaternal interpersonal problems were associated with insecure (vs. secure), dismissing (vs. secure), and preoccupied (vs. secure) attachment. There was no significant relationship between maternal interpersonal problems and disorganized attachment. Mediation analyses showed that maternal interpersonal problems were indirectly related to adolescent attachment security via the mother's recalled maternal care, though only a small amount of variance (7%) in adolescent offspring attachment was accounted for by the model.ConclusionsResults provide the first evidence that maternal interpersonal problems are associated with higher likelihood of insecure attachment in adolescents. Therefore, researchers could consider drawing upon the IPC literature to further examine mechanisms of intergenerational risk and to tailor interventions aimed to improve parent-child relations and attachment. Additionally, findings highlight the mediating role of the mothers' recalled experiences with caregivers in the transmission of risk, suggesting attachment-based or mentalization-based interventions may be helpful for mothers with interpersonal problems and personality pathology.

Dataset Information

Maternal and paternal effects on offspring internalizing problems: Results from genetic and family-based analyses.

Publications

Maternal and paternal effects on offspring internalizing problems: Results from genetic and family-based analyses.

Similar Datasets

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