ZNF20 and diabetic kidney disease: Only six CpGs were hypermethylated, i.e., had a higher methylation level in DKD (Fig. 3a), with the largest difference observed for cg17944885 located between ZNF788P and ZNF625-ZNF20 (Methylation β-value difference=0.069, p = 2.0 × 10−44).