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Publication Detail

Title: Intergenerational transmission of childhood trauma? Testing cellular aging in mothers exposed to sexual abuse and their children.

Authors: Etzel, Laura; Hastings, Waylon J; Mattern, Brooke C; Oxford, Monica L; Heim, Christine; Putnam, Frank W; Noll, Jennie G; Shalev, Idan

Published In Psychoneuroendocrinology, (2020 10)

Abstract: BACKGROUND: Exposure to maltreatment in childhood can lead to increased risk for poor health outcomes in adulthood. Child maltreatment and later poor health may be linked by premature biological aging. We tested whether childhood sexual abuse (CSA) was associated with telomere length (TL) in adult females. We further tested the hypothesis of intergenerational transmission of CSA-related effects by measuring TL in both CSA-exposed and non-exposed mothers and their children. METHODS: Participants were a subset of females and their children in a prospective-longitudinal cohort study of sexually abused females and a demographically comparable control group from the same Washington, D.C. area. TL was measured using qPCR in both leukocyte and buccal samples from females (N = 108, mean age 36.3 years) and buccal samples from their children (N = 124, mean age 10.5 years). Multilevel models were used to test associations between CSA-exposure and TL measured in leukocytes and buccal tissue in females and to test the intergenerational effect of maternal-CSA exposure on age-adjusted TL in their children. RESULTS: CSA-exposure was not associated with TL in adult females. Maternal TL and biological sex were significant predictors of child TL such that longer maternal TL predicted longer TL in children, and female children had longer TL than male children. However, maternal-CSA exposure did not predict TL in children. DISCUSSION: CSA-exposure was not associated with TL in this cohort of middle-aged females, nor was there evidence for an intergenerational effect of maternal-CSA exposure on child TL. This finding is in line with some previous results on CSA and adult TL. Previous significant results associating child maltreatment with shorter TL may be capturing a population of individuals exposed to either multiple types of maltreatment compared to controls with no childhood adversity, or maltreatment in childhood with concurrent TL measurements.

PubMed ID: 32629221 Exiting the NIEHS site

MeSH Terms: Adult; Adult Survivors of Child Abuse/psychology; Adverse Childhood Experiences/psychology*; Cellular Senescence/genetics; Cellular Senescence/physiology; Child; Cohort Studies; Female; Humans; Intergenerational Relations; Longitudinal Studies; Male; Mothers; Prospective Studies; Sex Offenses; Telomere Homeostasis/physiology*; Telomere/metabolism*

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