Oxygen consumption rates of L6E9 and R1H cells.

Oxygen consumption rates were measured in L6E9 myoblasts and R1H cells culture in growth medium or in differentiation medium at 37°C by polarography in DMEM serum free (basal), in the presence of oligomycin, and after the addition of FCCP. Respiration rates are expressed in nmol O2.min−1.cell−1. Respiratory control ratio (RCR) was calculated as the ratio between FCCP-stimulated and oligomycin insensitive respiration rates. For more details see Materials and Methods. Data are means ± SE from 12 independent culture dishes. *PPPP