Thiago Wendt Viola retweetledi

We profiled genome-wide DNA methylation (DNAm) of umbilical cord blood from newborns with and without cocaine exposure during pregnancy. We used DNAm data to (1) assess pediatric epigenetic clocks at birth and (2) to estimate epigenetic scores (ES) considering the large-scale DNAm data availability and existing evidence regarding prenatal cocaine exposure (PCE) as a risk for health problems later in life. We generated ES for tobacco smoking, psychosis, autism, diabetes, and obesity.
PCE was associated with protracted DNAm gestational age in newborns, and this effect remained significant when controlling for potential confounders, such as blood cell type composition predicted by DNAm and obstetric data. DNAmGA was negatively correlated with BDNF levels in the serum of UCB. Higher tobacco smoking, psychosis, and diabetes ES were found in the PCE group. The GO analysis revealed GABAergic synapses as a potential pathway altered by PCE.
@WViolaThiago @FriesGabriel
nature.com/articles/s4159…
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