CDKN1B and diabetic kidney disease: The Real-time PCR data showed that CDKN1B expression in patients with diabetic nephropathy was significantly higher than that in controls (Figure 5B), and a negative correlation between CDKN1B and miR-222-3p expression (Figure 5C) while a positive correlation between CDKN1B and NEAT1 expression was observed in diabetic nephropathy patients (Figure 5D).