Figure 2. Effects of aging or high-fat diet feeding on M3R mRNA expression in lacrimal glands. M3R mRNA expression levels in young and aged mice (N=7-8) (A), and in mice fed a normal diet (ND) or high-fat diet (HFD) for 8 weeks (N=4-5) (B). Values are presented as means ± SEM. NS, not significant (an unpaired Student’s t-test).