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Effects of cyclopiazonic acid on Ca(2+)-activated tension production in skinned skeletal muscle fibres of the ferret.
The effect of cyclopiazonic acid, an inhibitor of sarcoplasmic reticulum Ca(2+)-ATPase, was investigated on force generation by the contractile apparatus in Triton-skinned fibres from extensorExpand
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Skeletal muscle disuse induces fibre type-dependent enhancement of Na(+) channel expression.
Slow-twitch and fast-twitch muscle fibres have specific contractile properties to respond to specific needs. Since sodium current density is higher in fast-twitch than in slow-twitch fibres, sodiumExpand
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Comparison between the delayed outward current in slow and fast twitch skeletal muscle in the rat.
1. A comparison of the delayed outward current of isolated fibres from rat soleus and iliacus muscle has been made using a double sucrose‐gap voltage‐clamp method. 2. The fast and slow components ofExpand
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Ciliary neurotrophic factor prevents unweighting-induced functional changes in rat soleus muscle.
The purpose of the present work was to see whether changes in rat soleus characteristics due to 3 wk of hindlimb suspension could be modified by ciliary neurotrophic factor (CNTF) treatment.Expand
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Membrane currents and activation of contraction in rat ventricular fibres
  • C. Léoty
  • Medicine, Chemistry
  • The Journal of physiology
  • 1 June 1974
1. A double sucrose gap technique has been combined with an optical method of measuring the movement of the preparation and applied to rat ventricular trabeculae.
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The time‐dependent and dose‐dependent effects of caffeine on the contraction of the ferret heart
1. Trabeculae isolated from ferret heart and from other mammalian hearts have been mounted in a way that enables the tension generated to be measured while the composition of the bathing fluid isExpand
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Ionic currents in mammalian fast skeletal muscle.
1. The double sucrose‐gap technique has been applied to rat skeletal muscle fibres to study the ionic currents under voltage‐clamp conditions. 2. The iliacus muscle was found to be of 'fast' typeExpand
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Cyclopiazonic acid-induced changes in the contraction and Ca2+ transient of frog fast-twitch skeletal muscle.
The effects of cyclopiazonic acid (CPA) were investigated on isolated skeletal muscle fibers of frog semitendinosus muscle. CPA (0.5-10 μM) enhanced isometric twitch but produced little change inExpand
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Sarcoplasmic reticulum Ca(2+) release by 4-chloro-m-cresol (4-CmC) in intact and chemically skinned ferret cardiac ventricular fibers.
The purpose of this study was to determine whether 4-chloro-m-cresol (4-CmC) could generate caffeine-like responses in ferret cardiac muscle. The concentration dependence of 4-CmC-mediated release ofExpand
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Nandrolone decanoate treatment induces changes in contractile responses of rat untrained fast-twitch skeletal muscle.
This investigation was designed to examine whether short-term administration of anabolic-androgenic steroids (AAS) (nandrolone decanoate) could produce changes in contractile responses of untrainedExpand
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