Effect of propionate treatment (0.3 g/kg, i.p. for 7 days) on Akt knockout-induced change in protein phosphatase levels. (a) Representative gel blots depicting expression of PP2AA, PP2AB, PP2C, and β-actin (loading control) using specific antibodies; (b) PP2AA; (c) PP2AB; (d) PP2C. Mean ± SEM, per group, and *P < 0.05 versus WT group.