Fig. 3From: Impact of vitamin C supplementation on placental DNA methylation changes related to maternal smoking: association with gene expression and respiratory outcomesVolcano plots of differentially methylated regions (DMRs) in placenta between a placebo and vitamin C smokers and b placebo smokers and never-smokers. DMRs with a Šidák adjusted p value < 0.05 are shown in red. The top 20 DMRs per comparison are annotated with the nearest gene and number of CpGs. The x-axis denotes the average delta-beta between sample groups across the DMR regionBack to article page