1. Decrease in myocardial Na⁺-K⁺-ATPase activity and ouabain binding sites in hypercholesterolemic rabbits

   • W. -J. Chen
   • S. -Y. Lin-Shiau
   • Y. -T. Lee

   Original Contribution Pages: 1 - 7

2. Negative metabolic effects of cyclic GMP are altered in renal hypertension induced cardiac hypertrophy

   • P. Rabindranauth
   • K. L. Naim
   • H. R. Weiss

   Original Contribution Pages: 8 - 16

3. Mepacrine protects the isolated rat heart during hypoxia and reoxygenation —but not by inhibition of phospholipase A₂

   • E. Bugge
   • T. M. Gamst
   • K. Ytrehus

   Original Contribution Pages: 17 - 24

4. Modulation of pacemaker activity in sheep cardiac Purkinje fibers by stimulation of β-adrenoceptor subtypes

   • U. Thome
   • F. Berger
   • D. Hafner

   Original Contribution Pages: 25 - 34

5. Induction of ventricular fibrillation by T-wave field-shocks in the isolated perfused rabbit heart: Role of nonuniform shock responses

   • P. F. Kirchhof
   • C. L. Fabritz
   • M. R. Franz

   Original Contribution Pages: 35 - 44

6. Blood flow capacity via direct acute myocardial revascularization

   • T. Kohmoto
   • G. Uzun
   • D. Burkhoff

   Original Contribution Pages: 45 - 51

7. Systemic and cardiac catecholamines during elective PTCA and during immediate PTCA for acute myocardial infarction

   • G. Richardt
   • G. Munch
   • T. Kurz

   Original Contribution Pages: 52 - 60