Figure 1.

Alterations of energy metabolism of platelet concentrates stored for up to 8 days with autologous plasma only (control) and with autologous plasma supplemented with increasing concentrations of glucose. ATP (Panel A) and GTP (Panel B) were determined in deproteinised platelets at 0, 2, 4, 6 and 8 days of storage at 22 °C under constant shaking. Each point is the mean value for six platelet concentrates and is expressed as percent change with respect to the value determined at time 0, immediately before starting storage. Standard deviations have been omitted for the sake of clarity.