The yield of isolated mitochondria was calculated as the ratio of total protein in the maximally enriched isolated mitochondrial fraction compared with the tissue mass homogenized at the start of the isolation. Control (n = 8), P188 (n = 10), delayed P188 (n = 6), and PEG (n = 6) were compared as indicated. Error bars represent SEM. Statistical significance (p < 0.05) denoted as: *comparing infarct to nonischemic territory from the same treatment group, and #comparing infarct tissue harvested from the P188 group to infarct tissue from all other groups. Abbreviations as in Figure 1.