Fig. 3

GNMT deficiency did not impair the secretion function of pancreatic islets. a Serum insulin levels in overnight-fasted WT and Gnmt−/− mice (n = 5 per group). b Serum insulin levels after glucose injection in WT and Gnmt−/− mice mice (n = 4–7 per group). c Insulin and glucagon staining of pancreatic islets in WT and Gnmt−/− mice. Scale bars indicate 100 μm. All error bars indicate s.e.m