1. Biochemical regulators in cardiac hypertrophy

   • F. Kölbel
   • V. Schreiber

   Editorial Pages: 351 - 363

2. The effects of intracoronary Renografin injection on coronary flow and distribution in dogs following coronary occlusion

   • M. V. Cohen

   Original Contributions Pages: 364 - 372

3. Reduced resistances of septal artery collateral channels after cardiac sympathectomy

   • K. W. Scheel
   • C. E. Jones

   Original Contributions Pages: 373 - 383

4. Application of an end-systolic pressure-segment length relationship for measuring regional contractility

   • A. J. Liedtke
   • St. H. Nellis
   • L. F. Whitesell

   Original Contributions Pages: 384 - 395

5. Sodium-calcium exchange in Purkinje fibers: Electrical and mechanical effects

   • Tung Li
   • M. Vassalle

   Original Contributions Pages: 396 - 414

6. Effects of vasoactive stimuli on coronary vascular resistance in isolated perfused rabbit hearts: No vasospastic response to ergonovine with or without atherogenic diet

   • Th. v. Arnim
   • F. Crea
   • A. Maseri

   Original Contributions Pages: 415 - 422

7. Morphology and mitochondrial function of the surviving myocardium following myocardial infarction in the cat

   • M. Weitbrecht
   • J. Schaper
   • P. Mathes

   Original Contributions Pages: 423 - 434

8. On the inability of ketone bodies to serve as the only energy providing substrate for rat heart at physiological work load

   • H. Taegtmeyer

   Original Contributions Pages: 435 - 450

9. Differences in sarcolemmal preparations: Cell surface material and membrane sidedness

   • M. P. Moffat
   • P. K. Singal
   • N. S. Dhalla

   Original Contributions Pages: 451 - 461

10. Skinned coronary smooth muscle: Calmodulin, calcium antagonists, and cAMP influence contractility

    • J. C. Rüegg
    • K. Meisheri
    • C. Zeugner

    Original Contributions Pages: 462 - 471

11. Announcements

    Announcement Pages: 472 - 472