(A) An equal number of FACS-isolated SCs from C57 mice were cultured for 24 hrs and treated with 0, 1, 10, or 20mM 2-DG (glycolytic inhibitor) or NaN3 (respiration inhibitor) for 3 hrs before measurement of ATP production. The relative ATP levels normalized to the 0 mM values are plotted. N=3 mice. 