1. Calcium signalling by G protein-coupled sphingolipid receptors in bovine aortic endothelial cells

   • Dagmar zu Heringdorf Meyer
   • Chris J. van Koppen
   • Karl H. Jakobs

   Original Article Pages: 397 - 403

2. Regulation of the expression of the proenkephalin gene in cultured meningeal fibroblasts: opposite effects of α₁- and β₂-adrenoceptors

   • Brigitte Hildebrand
   • Bernhard Wissler
   • Dieter K. Meyer

   Original Article Pages: 404 - 410

3. Expression of five somatostatin receptor mRNAs in the human brain and pituitary

   • V. Silke Thoss
   • Julio Pérez
   • Daniel Hoyer

   Original Article Pages: 411 - 419

4. Effect of glutamate receptor ligands on mitochondrial membrane potential in rat dissociated cerebellar cells

   • Francesc X. Sureda
   • Elena Escubedo
   • Antonio Camins

   Original Article Pages: 420 - 423

5. PACAP induces bradycardia in guinea-pig heart by stimulation of atrial cholinergic neurones

   • J. Seebeck
   • W. E. Schmidt
   • S. Herzig

   Original Article Pages: 424 - 430

6. Mechanisms of the contractile effects of 2,3-butanedione-monoxime in the mammalian heart

   • N. Zimmermann
   • P. Boknik
   • H. Scholz

   Original Article Pages: 431 - 436

7. Modulation of L-type Ca current by denopamine, a nonparenteral partial β₁ stimulant, in rabbit ventricular cells

   • Yoshizumi Habuchi
   • Taku Yamamoto
   • Manabu Yoshimura

   Original Article Pages: 437 - 443

8. The novel cardioprotective agent BMS-180448 activates a potassium conductance in cardiac and vascular smooth muscle

   • Nicholas J. Lodge
   • Mark A. Smith

   Original Article Pages: 444 - 451

9. Binding of [³H]-P1075, an opener of ATP-sensitive K⁺ channels, to rat glomerular preparations

   • Friedrich Metzger
   • Ulrich Quast

   Original Article Pages: 452 - 459

10. Effects of the potassium channel openers KRN4884 and levcromakalim on the contraction of rat aorta induced by A23187, compared with nifedipine

    • Jun-ichi Kawahara
    • Hideakira Izumi
    • Toshio Izawa

    Original Article Pages: 460 - 465

11. Effects of angiotensin I and angiotensin II in blood vessels: greater influence of converting enzyme activity in the rabbit basilar artery

    • A. Zerrouk
    • M. Auguet
    • P. E. Chabrier

    Original Article Pages: 466 - 473

12. Anatomical differences in responsiveness to vasoconstrictors in the mesenteric veins from normal and portal hypertensive rats

    • Lucrecia Moreno
    • M. A. Angeles Martínez-Cuesta
    • Juan V. Esplugues

    Original Article Pages: 474 - 480

13. P₂-purinoceptor antagonists: I. Blockade of P₂-purinoceptor subtypes and ecto-nucleotidases by small aromatic isothiocyanato-sulphonates

    • Ralph Bultmann
    • Birgit Pause
    • Klaus Starke

    Original Article Pages: 481 - 490

14. P₂-purinoceptor antagonists: II. Blockade of P₂-purinoceptor subtypes and ecto-nucleotidases by compounds related to Evans blue and trypan blue

    • Henning Wittenburg
    • Ralph Bültmann
    • Klaus Starke

    Original Article Pages: 491 - 497

15. P₂-purinoceptor antagonists: III. Blockade of P₂-purinoceptor subtypes and ecto-nucleotidases by compounds related to suramin

    • Ralph Bültmann
    • Henning Wittenburg
    • Klaus Starke

    Original Article Pages: 498 - 504

16. Facilitation of the vasorelaxant action of calcium antagonists by basal nitric oxide in depolarized artery

    • Salvatore Salomone
    • Claudia L. M. Silva
    • Théophile Godfraind

    Original Article Pages: 505 - 512

17. Changes in sensitivity of 5-HT receptor mediated functional responses in the rat oesophagus, fundus and jejunum following chronic infusion with 5-hydroxytryptamine

    • Peter G. McLean
    • Ian M. Coupar
    • Peter Molenaar

    Original Article Pages: 513 - 519

18. Suppressed anti-aggregating and cGMP-elevating effects of sodium nitroprusside in platelets from patients with stable angina pectoris

    • Yuliy Y. Chirkov
    • Larissa P. Chirkova
    • John D. Horowitz

    Original Article Pages: 520 - 525

19. Comparison of the effects of aminoguanidine and L-carnitine treatments on somatosensorial evoked potentials in alloxan-diabetic rats

    • Oğuzhan Yildiz
    • Metin Özata
    • Mehmet Ali Gündoğan

    Original Article Pages: 526 - 531

20. Methyl mercury reduces voltage-activated currents of rat dorsal root ganglion neurons

    • Ralph Leonhardt
    • Helmut Haas
    • Dietrich Büsselberg

    Original Article Pages: 532 - 538

21. The selective adenosine A_2A receptor antagonist SCH 58261 discriminates between two different binding sites for [³H]-CGS 21680 in the rat brain

    • Karin Lindstrom
    • Ennio Ongini
    • Bertil B. Fredhohn

    Short Communication Pages: 539 - 541