Figure 2. Activation of AMPK by AICAR is not associated with an increase in p38 MAPK phosphorylation in skeletal muscle.
Rat EDL muscles were isolated and preincubated in KRB buffer for 20 min. The muscles were then incubated with 2 mM AICAR for 40 min. Phosphorylation of AMPK (A) and p38 MAPK (B) were determined by immunoblotting using phospho-specific antibodies. Data are the means ± SEM. n = 4/group. (C); Mice were injected intraperitoneal with AICAR (1mg/g). Gastrocnemius muscles were harvested at each time point indicated. Phosphorylation of AMPK and p38 MAPK were determined by immunoblotting using phosphospecific antibodies. Representative images are shown.
