FGF19 and type 1 diabetes mellitus: In neurons from T1DM mice, FGF19 produced a small but significant decrease in mean Rin (Figure 2C; ACSF: 1.51 ± 0.11 GΩ; FGF19: 1.33 ± 0.14 GΩ; n = 26; p=0.0202).