Figure 3).

Effect of ischemic preconditioning (PC) on tumour necrosis factor-alpha (TNF-α)-mediated depressant effects on left ventricular contractility and coronary vascular hemodynamics. Data were computed at 60 min recirculation and expressed as mean ± SEM. **P<0.01; ***P<0.001 when compared with control; ^†P<0.05; ^††P<0.01; ^†††P<0.001 compared with 1 h TNF-α perfusion. 1 h TNF-α 1 h of recirculating TNF-α perfusion; CF Coronary flow; Control 1 h of control perfusion; CVR Coronary vascular resistance; LVEDP Left ventricular end-diastolic pressure; Pmax Maximum developed pressure