1. Effectiveness of theophylline to increase cyclic AMP levels and force of contraction in electrically paced guinea-pig auricles. Comparison with isoprenaline, calcium and ouabain

   • Claudia Dönges
   • Martin Heitmann
   • Hasso Scholz

   OriginalPaper Pages: 87 - 97

2. The effects of adrenaline and theophylline on action potential and contraction of mammalian ventricular muscle under “rested-state” and “steady-state” stimulation

   • Andrzej Beręsewicz
   • Harald Reuter

   OriginalPaper Pages: 99 - 107

3. Analysis of the β-receptor mediated effect on fast-contracting skeletal muscle in vitro

   • Eva Holmberg
   • Bertil Waldeck

   OriginalPaper Pages: 109 - 113

4. Effect of acetylsalicylic acid on experimentally induced arterial thrombosis in rats

   • K. Meng
   • F. Seuter

   OriginalPaper Pages: 115 - 119

5. Correlation between drug-induced supersensitivity of dopamine dependent striatal mechanisms and the increase in striatal content of the Ca²⁺ regulated protein activator of cAMP phosphodiesterase

   • M. E. Gnegy
   • A. Lucchelli
   • E. Costa

   OriginalPaper Pages: 121 - 127

6. Effects of guanidine on synaptic transmission in the spinal cord of the frog

   • P. Grafe
   • U. Sonnhof
   • A. Kühner

   OriginalPaper Pages: 129 - 134

7. Histoautoradiography of central nervous system in rats with generalized tetanus due to ¹²⁵I-toxin

   • G. Erdmann
   • E. Habermann

   OriginalPaper Pages: 135 - 138

8. Action of the competitive angiotensin II antagonist saralasin during the initial phase of glycerol-induced acute renal failure of the rat

   • J. Greven
   • H. Klein

   OriginalPaper Pages: 139 - 143

9. The role of bile acids in phalloidin poisoning

   • M. Frimmer
   • E. Petzinger
   • L. B. Veil

   Short Communication Pages: 145 - 147