Literature DB >> 6974340

Effects of Cs on acetylcholine induced current. Is ik1 increased by acetylcholine in frog atrium?

C Ojeda, O Rougier, Y Tourneur.   

Abstract

1.20 mM Cs+ ions reduce background current and decrease drastically the K+ depletion process, probably as a consequence of the reduction of iK1. The background current-voltage relationship becomes linear. 2. 20 mM Cs+ ions completely abolish the current induced by acetylcholine. 3. The possibility that the K+ current induced by acetylcholine is due to an increase of iK1 is discussed.

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Year:  1981        PMID： 6974340     DOI： 10.1007/BF00580695

Source DB:  PubMed          Journal:  Pflugers Arch        ISSN： 0031-6768            Impact factor:   3.657


  15 in total

Review 1.  Voltage clamp and tracer flux data: effects of a restricted extra-cellular space.

Authors:  D Attwell; D Eisner; I Cohen
Journal:  Q Rev Biophys       Date:  1979-08       Impact factor: 5.318

2.  Cardiac Purkinje fibers: cesium as a tool to block inward rectifying potassium currents.

Authors:  G Isenberg
Journal:  Pflugers Arch       Date:  1976-09-30       Impact factor: 3.657

3.  Some effects of prolonged polarization on membrane currents in bullfrog atrial muscle.

Authors:  D W Maughan
Journal:  J Membr Biol       Date:  1973       Impact factor: 1.843

4.  The decline of potassium permeability during extreme hyperpolarization in frog skeletal muscle.

Authors:  W Almers
Journal:  J Physiol       Date:  1972-08       Impact factor: 5.182

5.  Relaxation of the ACh-induced potassium current in the rabbit sinoatrial node cell.

Authors:  A Noma; W Trautwein
Journal:  Pflugers Arch       Date:  1978-11-30       Impact factor: 3.657

6.  Measurement and significance of the reversal potential for the pace-maker current (iK2) in sheep Purkinje fibres.

Authors:  D DiFrancesco; M Ohba; C Ojeda
Journal:  J Physiol       Date:  1979-12       Impact factor: 5.182

7.  Depletion and accumulation of potassium in the extracellular clefts of cardiac Purkinje fibers during voltage clamp hyperpolarization and depolarization.

Authors:  C M Baumgarten; G Isenberg
Journal:  Pflugers Arch       Date:  1977-03-11       Impact factor: 3.657

8.  K efflux through inward rectifying K channels in voltage clamped Purkinje fibers.

Authors:  J Vereecke; G Isenberg; E Carmeliet
Journal:  Pflugers Arch       Date:  1980-04       Impact factor: 3.657

9.  Changes in membrane currents in bullfrog atrium produced by acetylcholine.

Authors:  W Giles; S J Noble
Journal:  J Physiol       Date:  1976-09       Impact factor: 5.182

10.  Characterization of the electrogenic sodium pump in cardiac Purkinje fibres.

Authors:  D A Eisner; W J Lederer
Journal:  J Physiol       Date:  1980-06       Impact factor: 5.182
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  12 in total

1.  Characterization of the acetylcholine-induced potassium current in rabbit cardiac Purkinje fibres.

Authors:  E Carmeliet; K Mubagwa
Journal:  J Physiol       Date:  1986-02       Impact factor: 5.182

2.  Changes by acetylcholine of membrane currents in rabbit cardiac Purkinje fibres.

Authors:  E Carmeliet; K Mubagwa
Journal:  J Physiol       Date:  1986-02       Impact factor: 5.182

3.  A quantitative analysis of the acetylcholine-activated potassium current in single cells from frog atrium.

Authors:  M A Simmons; H C Hartzell
Journal:  Pflugers Arch       Date:  1987-08       Impact factor: 3.657

Review 4.  Currents through ionic channels in multicellular cardiac tissue and single heart cells.

Authors:  D Pelzer; W Trautwein
Journal:  Experientia       Date:  1987-12-01

5.  Block by Cs of K current iK1 and of carbachol induced K current iCch in frog atrium.

Authors:  J A Argibay; P Dutey; M Ildefonse; C Ojeda; O Rougier; Y Tourneur
Journal:  Pflugers Arch       Date:  1983-06-01       Impact factor: 3.657

6.  The shortening of the action potential by DNP in guinea-pig ventricular myocytes is mediated by an increase of a time-independent K conductance.

Authors:  G Isenberg; J Vereecke; G van der Heyden; E Carmeliet
Journal:  Pflugers Arch       Date:  1983-06-01       Impact factor: 3.657

7.  The effects of low concentrations of cardiotonic steroids on membrane currents and tension in sheep Purkinje fibres.

Authors:  G Hart; D Noble; Y Shimoni
Journal:  J Physiol       Date:  1983-01       Impact factor: 5.182

8.  Two distinct types of inwardly rectifying K+ channels in bull-frog atrial myocytes.

Authors:  R B Clark; T Nakajima; W Giles; K Kanai; Y Momose; G Szabo
Journal:  J Physiol       Date:  1990-05       Impact factor: 5.182

9.  Serotonin increases an anomalously rectifying K+ current in the Aplysia neuron R15.

Authors:  J A Benson; I B Levitan
Journal:  Proc Natl Acad Sci U S A       Date:  1983-06       Impact factor: 11.205

10.  Multiple effects of alpha-adrenoceptor stimulation on the action potential of the rabbit atrium.

Authors:  Y Miura; J Inui
Journal:  Naunyn Schmiedebergs Arch Pharmacol       Date:  1984-01       Impact factor: 3.000
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