Late Breaking Science502Hemopexin counteracts systolic dysfunction induced by heme overload503Inhibition of NF-kappa B suppressed inflammation induced by acute shear stress in endothelial cells: Implications for vein graft failure504Optical treatment of cardiac arrhythmias505Tachypacing-induced heart failure: a metabolomic investigation506Characterization of early left ventricle dysfunction in a relevant experimental model for human rheumatoid arthritis507Circadian rhythm in heart rate is due to an intrinsic circadian clock in the sinus node