Fig. 3

Decreased DNMT1 expression in old mice. A) DNMT1 structure. B–D) mRNA and protein level of DNMT1. *P < 0.05, **P < 0.01
Decreased DNMT1 expression in old mice. A) DNMT1 structure. B–D) mRNA and protein level of DNMT1. *P < 0.05, **P < 0.01