Figure 8).

Concentration of myocardial glucose-6-phosphate (G6P) in newborn hearts either nonperfused (dotted line) (n=6) or perfused (solid line) (n=6) through the aortic root from the onset of global ischemia. G6P rose steadily in the nonperfused hearts throughout the ischemic time and was significantly (*P<0.05) elevated by the time to onset of ischemic contracture (TIC_o), which was sustained at the time to peak of ischemic contracture (TIC_p). There were no significant changes in the perfused group