Fig. 1.

Exercise training increases tribbles homolog 3 (TRB3) mRNA and protein expression. C57BL/6 mice (Charles River Laboratories, 10 wk old) were housed in wheel cages for 4 wk (Training; T), and sedentary (S) mice were housed in separate cages without a wheel. Mice were euthanized and triceps muscles were snap frozen in liquid nitrogen. RNA and protein were extracted and TRB3 mRNA (A) and protein (B) were determined. Data are means ± SE, n = 9 mice/group. *P < 0.05 compared with sedentary mice.