Figure 2. Time plots of signal intensities normalized to the β-ATP signal before, during and after ischaemia.

Time courses of changes in PCr (WT) and PGua (GAMT−/−) (A), P_i (B) and ATP (C) are shown as means ± s.e.m. for WT (n = 7, ▪) and GAMT–/– (n = 7, ○). * Significantly different from WT at P < 0.05. a.u., arbitrary units.