Literature DB >> 2470594

Competitive antagonism by glibenclamide of cromakalim inhibition of twitch contractions in rabbit vas deferens.

M Eltze1.   

Abstract

Electrically induced contractions of the rabbit isolated vas deferens were potentiated by carbachol but inhibited by the K+ channel opener cromakalim. The inhibition by cromakalim could be competitively antagonized by 10(-7)-10(-6) M glibenclamide (pA2 = 7.17) and was also reversed by carbachol, extra K+ or Bay k 8644. The data support the view that smooth muscle membrane depolarization is the cause for carbachol potentiation in rabbit vas deferens and that hyperpolarization by cromakalim is susceptible to blockade by the inhibitor of ATP-sensitive K+ channels, glibenclamide.

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Year:  1989        PMID: 2470594     DOI: 10.1016/0014-2999(89)90187-8

Source DB:  PubMed          Journal:  Eur J Pharmacol        ISSN: 0014-2999            Impact factor:   4.432


  8 in total

Review 1.  ATP-dependent potassium channels of muscle cells: their properties, regulation, and possible functions.

Authors:  N W Davis; N B Standen; P R Stanfield
Journal:  J Bioenerg Biomembr       Date:  1991-08       Impact factor: 2.945

2.  Potassium channel agonists cause penile erection in cats.

Authors:  Wayne J G Hellstrom; Run Wang; Philip J Kadowitz; Floyd R Domer
Journal:  Int J Impot Res       Date:  1992       Impact factor: 2.896

3.  Molecular analysis of ATP-sensitive K⁺ channel subunits expressed in mouse vas deferens myocytes.

Authors:  Kazuomi Iwasa; Hai-Lei Zhu; Atsushi Shibata; Yoshihiko Maehara; Noriyoshi Teramoto
Journal:  Br J Pharmacol       Date:  2014-01       Impact factor: 8.739

4.  Characterization of responses to cromakalim and pinacidil in smooth and cardiac muscle by use of selective antagonists.

Authors:  G A McPherson; J A Angus
Journal:  Br J Pharmacol       Date:  1990-06       Impact factor: 8.739

5.  Alkali cation permeability and caesium blockade of cromakalim-activated current in guinea-pig ventricular myocytes.

Authors:  J C Randle; S H Oliet; J F Renaud
Journal:  Br J Pharmacol       Date:  1991-07       Impact factor: 8.739

6.  Glibenclamide is a competitive antagonist of the thromboxane A2 receptor in dog coronary artery in vitro.

Authors:  T M Cocks; S J King; J A Angus
Journal:  Br J Pharmacol       Date:  1990-06       Impact factor: 8.739

7.  Retinal ganglion cell survival is enhanced by gabapentin-lactam in vitro: evidence for involvement of mitochondrial KATP channels.

Authors:  Amelie Pielen; Matthias Kirsch; Hans-Dieter Hofmann; Thomas J Feuerstein; Wolf A Lagrèze
Journal:  Graefes Arch Clin Exp Ophthalmol       Date:  2004-02-10       Impact factor: 3.117

8.  Comparison of the effects of several potassium-channel openers on rat bladder and rat portal vein in vitro.

Authors:  G Edwards; M Henshaw; M Miller; A H Weston
Journal:  Br J Pharmacol       Date:  1991-03       Impact factor: 8.739

  8 in total

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