Glucose homeostasis and insulin sensitivity in mTOR⁻ mice. (A) Fasting and fed blood glucose concentrations in mTOR⁻ and control male mice. (B) Fasting and fed serum insulin concentrations in mTOR⁻ and control male mice (n = 7 mice/group). (C) Glucose tolerance test on male mice (n = 15 mice/group). (D) Insulin tolerance test on mTOR⁻ and control mice (n = 8 mice/group). **, P < 0.01. Data indicate mean ± SEM.