Figure 5. Effect of lactate on the accumulation of DG6P in rat hearts (determined by ³¹P NMR). DG6P is measured in arbitrary units calculated with Bruker software after scaling all spectra to a reference spectrum. Filled circles, hearts perfused with Krebs buffer plus 11 mM glucose; open circles, hearts perfused with Krebs buffer plus 11 mM glucose plus 10 mM lactate. Values are mean±SEM, *p<0.05 compared with Krebs buffer plus glucose hearts, n=4 per group.