Cited by 219Stress Responses and CortisolBirth, Development, and HealthMaternal Mental Health During Pregnancy and Postpartum

Prenatal Maternal Stress Predicts Methylation of Genes Regulating the Hypothalamic–Pituitary–Adrenocortical System in Mothers and Newborns in the Democratic Republic of Congo

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Kertes, Darlene A, Kamin, Hayley S, Hughes, David A, Rodney, Nicole C, Bhatt, Samarth, Mulligan, Connie J·2016·Child Development

Abstract

Exposure to stress early in life permanently shapes activity of the hypothalamic–pituitary–adrenocortical (HPA) axis and the brain. Prenatally, glucocorticoids pass through the placenta to the fetus with postnatal impacts on brain development, birth weight (BW), and HPA axis functioning. Little is known about the biological mechanisms by which prenatal stress affects postnatal functioning. This study addresses this gap by examining the effect of chronic stress and traumatic war-related stress on epigenetic changes in four key genes regulating the HPA axis in neonatal cord blood, placenta, and maternal blood: CRH, CRHBP, NR3C1, and FKBP5. Participants were 24 mother–newborn dyads in the conflict-ridden region of the eastern Democratic Republic of Congo. BW data were collected at delivery and maternal interviews were conducted to assess culturally relevant chronic and war-related stressors. Chronic stress and war trauma had widespread effects on HPA axis gene methylation, with significant effects observed at transcription factor binding (TFB) sites in all target genes tested. Some changes in methylation were unique to chronic or war stress, whereas others were observed across both stressor types. Moreover, stress exposures impacted maternal and fetal tissues differently, supporting theoretical models that stress impacts vary according to life phase. Methylation in several NR3C1 and CRH CpG sites, all located at TFB sites, was associated with BW. These findings suggest that prenatal stress exposure impacts development via epigenetic changes in HPA axis genes.

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  • Methylation of NR3C1 is linked to impaired stress regulation, increasing susceptibility to chronic stress in individuals and their offspring.

    “Methylation of the NR3C1 gene, which encodes the glucocorticoid receptor, has been linked to impaired stress regulation, increasing susceptibility to chronic stress in individuals and their offspring89,90.”

    From Resilience and brain health in global populations (2025) · cites this paper as [89]

    The Results (page unavailable) associate maternal stress with NR3C1 methylation, and the Discussion (page unavailable) suggests that prenatal stress may affect offspring development through changes in HPA-axis genes. The paper does not establish that NR3C1 methylation impairs stress regulation or increases susceptibility to chronic stress in individuals or their offspring; the Discussion cautions that the functional effects of the methylation changes remain unclear. (LLM, conf=0.85)

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  • New mothers exposed to war conditions in the Democratic Republic of Congo exhibited different CRH methylation patterns based on the type of stress reported: war stress or chronic stress.

    “New mothers exposed to war conditions in the Democratic Republic of Congo exhibited different CRH methylation patterns based on the type of stress reported: war stress or chronic stress, highlighting that the stress type experienced influences the epigenetic change observed (Kertes et al., 2016).”

    From The Epigenetics of Anxiety Pathophysiology: A DNA Methylation and Histone Modification Focused Review (2023) · cites this paper as Kertes et al., 2016

    The Results (Associations of Stressors and DNA Methylation; page not available) link maternal-blood CRH methylation to both chronic stress and war trauma, but those associations did not survive correction for multiple tests. The Discussion says some methylation effects differed by stressor type, while others overlapped; it does not establish distinct CRH methylation patterns in the mothers for the two stress types. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Maternal psychological distress affects DNA methylation in the corticotropin-releasing hormone and glucocorticoid receptor gene (NR3C1) in neonatal cord blood.

    “Interestingly, there are reports that maternal psychological distress affects DNA methylation in the corticotropin-releasing hormone and glucocorticoid receptor gene (NR3C1) in neonatal cord blood [149], and brain-derived neurotrophic factor in infants [150].”

    From Brain structural and functional outcomes in the offspring of women experiencing psychological distress during pregnancy (2024) · cites this paper as [149]

    The Results report that maternal stress was associated with CRH methylation in neonatal cord blood. They also report associations at two NR3C1 sites, but those did not survive correction for multiple testing. The claim presents an effect on both genes more definitively than these results warrant. (LLM, conf=0.83)

    Experimental — accuracy not yet measured

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Authors
Kertes, D. A., Kamin, H. S., Hughes, D. A., Rodney, N. C., Bhatt, S., & Mulligan, C. J.
Affiliations
  • University of Florida (US)
  • Consejo Superior de Investigaciones Científicas (ES)
Corresponding author
Kertes, Darlene A
Venue
Child Development
Published
2016-01-01
Volume
87
Issue
1
Pages
61-72
ISSN
  • 0009-3920 (ISSN-L)
  • 1467-8624
OpenAlex
W2264089163
Cited by
219
References
52
Citations by year
2026: 7 · 2025: 9 · 2024: 26 · 2023: 25 · 2022: 24 · 2021: 26 · 2020: 30 · 2019: 18 · 2018: 20 · 2017: 21 · 2016: 13
FWCI
15.33
Type
journal article
Language
en
Open access
Locations
  • Child Development (publishedVersion)
  • PubMed (publishedVersion)
  • Explore Bristol Research (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NSF (BCS 1231264)
  • NIH/NCATS Clinical and Translational Science Award (UL1 TR000064)
  • UF College of Liberal Arts and Sciences
  • UF Research Opportunity Seed Fund award
  • National Science Foundation (BCS 1231264)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Maternal Mental Health During Pregnancy and Postpartum
Keywords
prenatal stress, maternal stress, combat stress, hypothalamic-pituitary-adrenal axis, DNA methylation, epigenetics, glucocorticoid exposure, corticotropin-releasing factor, CRHBP, NR3C1, FKBP5, umbilical cord blood, placenta, birth weight, transcription factor binding sites, mother-newborn dyads, Democratic Republic of the Congo
MeSH terms
Psychological Trauma, Tacrolimus Binding Protein 5, Adult, Carrier Proteins, Corticotropin-Releasing Hormone, Female, Humans, Hypothalamo-Hypophyseal System, Infant, Newborn, Male, Pituitary-Adrenal System, Pregnancy, Pregnancy Complications, Receptors, Glucocorticoid, Stress, Psychological, Democratic Republic of the Congo, DNA Methylation, Tacrolimus Binding Proteins, Epigenesis, Genetic, Young Adult

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