Similarly, compared with the DM or NEC group, the expression of PCNA, β‐catenin, p‐GSK3β (Ser 9), p‐AKT (Ser 473), AKT and cyclin D1 decreased in the NEC‐L and NEC‐H groups (Figures 6E and S9A–H). The gene discussed is PCNA; the disease is necrotizing enterocolitis.