Literature DB >> 2726431

Calcium-induced calcium release activates contraction in intact cardiac cells.

M Valdeolmillos1, S C O'Neill, G L Smith, D A Eisner.   

Abstract

The "caged" calcium chelator Nitr-5 was incorporated into isolated rat ventricular myocytes. Brief illumination with ultra-violet light made the cell twitch. The light-induced twitch was inhibited by ryanodine (1-10/microM) suggesting that it resulted from calcium-induced release of calcium from the sarcoplasmic reticulum. Inhibition of the Ca current (Ni, 10 mM) abolished the electrically stimulated twitch but did not inhibit the light-induced twitch. These results provide direct evidence for the importance of Ca-induced Ca release in excitation-contraction coupling in the heart.

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Year:  1989        PMID： 2726431     DOI： 10.1007/bf00581820

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


  6 in total

1.  Activation of a potassium current by rapid photochemically generated step increases of intracellular calcium in rat sympathetic neurons.

Authors:  A M Gurney; R Y Tsien; H A Lester
Journal:  Proc Natl Acad Sci U S A       Date:  1987-05       Impact factor: 11.205

2.  Effect of membrane potential changes on the calcium transient in single rat cardiac muscle cells.

Authors:  M B Cannell; J R Berlin; W J Lederer
Journal:  Science       Date:  1987-12-04       Impact factor: 47.728

3.  The ionic nature of slow inward current and its relation to contraction.

Authors:  W New; W Trautwein
Journal:  Pflugers Arch       Date:  1972       Impact factor: 3.657

4.  Ryanodine alteration of the contractile state of rat ventricular myocardium. Comparison with dog, cat, and rabbit ventricular tissues.

Authors:  J L Sutko; J T Willerson
Journal:  Circ Res       Date:  1980-03       Impact factor: 17.367

5.  The effects of metabolic inhibition on intracellular calcium and pH in isolated rat ventricular cells.

Authors:  D A Eisner; C G Nichols; S C O'Neill; G L Smith; M Valdeolmillos
Journal:  J Physiol       Date:  1989-04       Impact factor: 5.182

Review 6.  Calcium-induced release of calcium from the cardiac sarcoplasmic reticulum.

Authors:  A Fabiato
Journal:  Am J Physiol       Date:  1983-07
  6 in total
  27 in total

1.  The effects of exogenous calcium buffers on the systolic calcium transient in rat ventricular myocytes.

Authors:  M E Díaz; A W Trafford; D A Eisner
Journal:  Biophys J       Date:  2001-04       Impact factor: 4.033

Review 2.  Late sodium current in the pathophysiology of cardiovascular disease: consequences of sodium-calcium overload.

Authors:  D Noble; P J Noble
Journal:  Heart       Date:  2006-07       Impact factor: 5.994

Review 3.  Ion channel gating in plants: physiological implications and integration for stomatal function.

Authors:  M R Blatt
Journal:  J Membr Biol       Date:  1991-11       Impact factor: 1.843

4.  The Fura-2 transient can show two types of voltage dependence at 36 degrees C in ventricular myocytes isolated from the rat heart.

Authors:  J C Hancox; S J Evans; A J Levi
Journal:  Pflugers Arch       Date:  1996-06       Impact factor: 3.657

5.  Measurement of Ca2(+)-release-dependent inward current reveals two distinct components of Ca2+ release from sarcoplasmic reticulum in guinea-pig atrial myocytes.

Authors:  T Budde; P Lipp; L Pott
Journal:  Pflugers Arch       Date:  1991-02       Impact factor: 3.657

6.  Does the use of DM-nitrophen, nitr-5, or diazo-2 interfere with the measurement of indo-1 fluorescence?

Authors:  R W Hadley; M S Kirby; W J Lederer; J P Kao
Journal:  Biophys J       Date:  1993-12       Impact factor: 4.033

7.  [Ca2+]i waves in heart cells: more than a passing fancy.

Authors:  W G Wier
Journal:  Biophys J       Date:  1993-12       Impact factor: 4.033

8.  Measurement of intracellular Ca2+ concentration using Indo-1 during simultaneous flash photolysis to release Ca2+ from DM-nitrophen.

Authors:  M S Kirby; R W Hadley; W J Lederer
Journal:  Pflugers Arch       Date:  1994-05       Impact factor: 3.657

9.  Regulation of unloaded cell shortening by sarcolemmal sodium-calcium exchange in isolated rat ventricular myocytes.

Authors:  R A Bouchard; R B Clark; W R Giles
Journal:  J Physiol       Date:  1993-09       Impact factor: 5.182

10.  Calcium transients caused by calcium entry are influenced by the sarcoplasmic reticulum in guinea-pig atrial myocytes.

Authors:  P Lipp; L Pott; G Callewaert; E Carmeliet
Journal:  J Physiol       Date:  1992-08       Impact factor: 5.182
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