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Novel Regions of Variable DNA Methylation in Human Placenta associated with Newborn Neurobehavioral Traits

ABSTRACT: Genome-wide profiling of placental DNA methylation in relation to neurobehavioral development. The Illumina 450k methylation array was used to profile 335 samples. These samples have been collected from the Rhode Island Child Health Study (RICHS).

ORGANISM(S): Homo sapiens

PROVIDER: GSE75248 | GEO | 2016/06/01

SECONDARY ACCESSION(S): PRJNA302897

REPOSITORIES: GEO

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Novel Regions of Variable DNA Methylation in Human Placenta associated with Newborn Neurobehavioral Traits

Project description:Genome-wide profiling of placental DNA methylation in relation to neurobehavioral development. The Illumina 450k methylation array was used to profile 335 samples. These samples have been collected from the Rhode Island Child Health Study (RICHS). Illumina analysis performed on 335 human placentas

2016-06-01 | E-GEOD-75248 | biostudies-arrayexpress

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Project description:Neonatal molecular biomarkers of neurobehavioral responses (measures of brain-behavior relationships), when combined with neurobehavioral performance measures, could lead to better predictions of long-term developmental outcomes. To this end, we examined whether variability in epigenomic measures from buccal cells were associated with neurobehavioral profiles in a cohort of infants born less than 30 weeks postmenstrual age (PMA) and participating in the Neonatal Neurobehavior and Outcomes in Very Preterm Infants (NOVI) Study (N=536). We tested whether epigenetic age, age acceleration, or DNA methylation (DNAm) levels at individual loci, measured via the Illumina EPIC microarray, differed between infants based on their NICU Network Neurobehavioral Scale (NNNS) profile classifications, ranging from most optimal to atypical. We adjusted for recruitment site, infant sex, PMA, and tissue heterogeneity. Infants with an optimally well-regulated NNNS profile had older epigenetic age compared to other NOVI infants (β1 = 0.201, p-value = 0.026), but no significant difference in age acceleration. In contrast, infants with an atypical NNNS profile had differential methylation at 29 CpG sites (FDR < 10%). Some of the genes annotated to these CpGs included PLA2G4E, TRIM9, GRIK3, and MACROD2, which have previously been associated with neurological structure and function, or with neurobehavioral disorders. These findings contribute to the existing evidence that neonatal epigenetic variations in buccal cells may be informative for infant neurobehavior.

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Project description: Not available

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Project description:Rhode Island Child Health Study

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Rhode Island Child Health Study

Project description:Rhode Island Child Health Study

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