Figure 1.

The time course of changes in left ventricular developed pressure (LVDP; the upper panel) and left ventricular end-diastolic pressure (LVEDP; the lower panel) of the ischaemic/reperfused untreated heart and the heart treated with 10, 30, or 100 μM propranolol. Each value represents the mean±s.e.mean of five experiments. Treatment with propranolol was conducted for the final 3 min of pre-ischaemia. ^*Significantly different from the corresponding untreated ischaemic/reperfused group (P<0.05).