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. 2014 Jul 12;4(7):e005318. doi: 10.1136/bmjopen-2014-005318

Figure 2.

Figure 2

Cross-sectional analysis of the methylation rates of the glucocorticoid receptor (GR) gene promoter in leucocytes determined using the Mquant method. Percentage of methylation at each CpG site (mean±SEM) in the GR promoter isolated from peripheral blood collected at birth and on postnatal day 4 in term (dark grey bar) and preterm (light grey bar) infants, respectively. Mann–Whitney U tests were performed to compare the methylation rates in preterm and term infants at each CpG site. A p value <0.05 (two tailed) was considered statistically significant. Closed star symbol, methylation rate significantly higher in preterm compared with term infants; Open star symbol, methylation rate significantly lower in preterm compared with term infants.