Cited by 84Epigenetics and DNA MethylationInfant Development and Preterm CareBirth, Development, and Health

Epigenome-wide analysis identifies genes and pathways linked to neurobehavioral variation in preterm infants

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Everson, Todd M., Marsit, Carmen J., Michael O’Shea, T., Burt, Amber, Hermetz, Karen, Carter, Brian S., Helderman, Jennifer, Hofheimer, Julie A. +9 more·2019·Scientific Reports

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Abstract

Abstract Background & Objectives Neonatal neurobehavioral performance measures, such as the NICU Network Neurobehavioral Scale (NNNS), have been developed to assess the neurobehavioral characteristics of infants and provide insights into future developmental trajectories. The identification of molecular biomarkers of very early life neurobehavioral experiences could lead to better predictions of the long-term developmental outcomes of high-risk infants including preterm infants. To this end, we aimed to examine whether variability in DNA methylation (DNAm) or epigenetic age from surrogate tissues are associated with NNNS profiles in a cohort of infants born less than 30 weeks postmenstrual age (PMA). Methods This study was performed within the Neonatal Neurobehavior and Outcomes in Very Preterm Infants (NOVI) Study and included those infants with complete NNNS assessment data and DNAm measured from buccal cells, collected at near term-equivalent age using the Illumina EPIC array (N=536). We tested whether epigenetic age and age acceleration differed between infants based on their NNNS profile classifications. Then we performed an epigenome-wide association study, to test whether DNAm at individual epigenetic loci varied between these NNNS profile groupings. Models were adjusted for recruitment site, infant sex, postmenstrual age, and estimated tissue heterogeneity. Results We found that infants with an optimal NNNS profile had slightly older epigenetic age than other NOVI infants (β 1 = 0.201, p-value = 0.026), and that infants with an atypical NNNS profile had differential methylation at 29 CpG sites (FDR < 10%). The genes annotated to these differentially methylated CpGs included PLA2G4E , TRIM9 , GRIK3 , and MACROD2 , which have previously been associated with neurological structure and function, or with neurobehavioral disorders. Conclusions Greater epigenetic age is associated with optimal NNNS responses while altered DNAm of multiple genes are associated with an atypical neurobehavioral profile at near-term equivalent age. These findings build upon the existing evidence that epigenetic variations in buccal cells may serve as markers of neonatal neurobehavior and might facilitate early identification of children at risk for abnormal developmental outcome.

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  • Human infants born preterm that exhibit an atypical neurobehavioral profile have significantly differential methylation of GRIK3 when compared with infants showing a more typical neurobehavioral profile.

    “Similarly, human infants born preterm that exhibit an atypical neurobehavioral profile, including poor attention, self-regulation, and quality of movement, as well as increased arousal, excitability, and systemic signs of prenatal stress, have significantly differential methylation of GRIK3 when compared with infants showing a more typical neurobehavioral profile (Everson et al., 2019).”

    From Glutamate receptors in domestication and modern human evolution (2020) · cites this paper as Everson et al., 2019

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  1. [3]Institute of Medicine. Preterm Birth: Causes, Consequences and Prevention. (National Academic Press, 2006).
  2. [38]Lester BM Tronick EZ Brazelton TB The Neonatal Intensive Care Unit Network Neurobehavioral Scale procedures Pediatrics 2004 113 641 667 14993524

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Authors
Everson, T. M., Marsit, C. J., Michael O’Shea, T., Burt, A., Hermetz, K., Carter, B. S., Helderman, J., Hofheimer, J. A., McGowan, E. C., Neal, C. R., Pastyrnak, S. L., Smith, L. M., Soliman, A., DellaGrotta, S. A., Dansereau, L. M., Padbury, J. F., & Lester, B. M.
Affiliations
  • Emory University (US)
  • Children's Mercy Hospital (US)
  • Wake Forest University Health Sciences (US)
  • University of North Carolina at Chapel Hill (US)
  • Brown University (US)
  • University of Hawaiʻi at Mānoa (US)
  • Spectrum Health (US)
  • Harbor–UCLA Medical Center (US)
  • Miller Children's & Women's Hospital (US)
Corresponding author
Everson, Todd M.
Venue
Scientific Reports
Published
2019-04-19
Volume
9
Issue
1
Pages
6322-6322
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2898171560
Cited by
82
References
86
Citations by year
2026: 3 · 2025: 5 · 2024: 6 · 2023: 19 · 2022: 30 · 2021: 5 · 2020: 11 · 2019: 3
FWCI
4.05
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • U.S. Department of Health &amp; Human Services | NIH | Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD084515, R01HD072267)
  • U.S. Department of Health &amp; Human Services | National Institutes of Health (UH3OD023347)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Infant Development and Preterm Care
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
Keywords
preterm infants, DNA methylation, epigenome-wide association study, neurobehavioral development, NICU Network Neurobehavioral Scale, epigenetic age, accelerated aging, buccal cell DNA, neonatal biomarkers, brain-behavior relationship, developmental prediction, TRIM9, GRIK3, MACROD2
MeSH terms
Child, Female, Humans, Infant, Infant, Newborn, Infant, Premature, Diseases, Male, Nerve Tissue Proteins, Infant Behavior, CpG Islands, Infant, Very Low Birth Weight, DNA Methylation

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