“The activity of serum creatine kinase-MB and the levels of serum troponins T and I and the activities of serum and heart lysosomal enzymes (β-glucuronidase, β-N-acetylglucosaminidase, β-galactosidase, cathepsin-B and D ) were increased significantly (P<0.05) in isoproterenol induced cardio toxic rats.”