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Keywords: excitation—contraction coupling
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Journal Articles
J Exp Biol (2020) 223 (22): jeb225730.
Published: 16 November 2020
... Excitationcontraction coupling Heart K + channels Temperature Freshwater fish that reside in the north-temperate zone experience pronounced seasonal variation of ambient temperature and oxygen availability ( Eliason and Anttila, 2017 ; Stecyk, 2017 ; Vornanen, 2016 ). Consequently, in winter...
Journal Articles
J Exp Biol (2020) 223 (19): jeb228205.
Published: 08 October 2020
...+ channels and ryanodine receptors in the SR. However, this phenomenon was not observed in atrial myocytes. Taken together, these findings help to explain the high-efficiency avian myocyte excitationcontraction coupling with regard to their reptilian-like cellular ultrastructure. * Author for...
Journal Articles
J Exp Biol (2017) 220 (3): 445–454.
Published: 01 February 2017
...://www.biologists.com/user-licence-1-1/ Summary: Low temperature pre-conditions fish heart for prolonged anoxia by changes in activity of excitationcontraction coupling genes and thereby allows sustained bradycardia and prolongation of ventricular action potential when oxygen shortage sets in. Anoxia...
Journal Articles
J Exp Biol (2016) 219 (15): 2340–2348.
Published: 01 August 2016
... temperature, we examined the effect of low temperature (5°C) on several events in excitationcontraction coupling in the migratory locust ( Locusta migratoria ). Intracellular membrane potential recordings during single nerve stimulations showed that 70% of fibers at 20°C produced an action potential (AP...
Journal Articles
J Exp Biol (2016) 219 (2): 175–182.
Published: 01 January 2016
.... © 2016. Published by The Company of Biologists Ltd 2016 Summary: This article reviews recent work regarding the communication between the L-type Ca 2+ channel (Ca V 1.1) and the type 1 ryanodine receptor (RyR1) that supports excitationcontraction coupling in skeletal muscle. 1,4...
Journal Articles
J Exp Biol (2012) 215 (7): 1162–1169.
Published: 01 April 2012
... particular in the atrial muscle. * Author for correspondence ( hanna.korajoki@uef.fi ) 5 12 2011 © 2012. 2012 cardiac contraction sarcoplasmic reticulum calcium uptake fish excitationcontraction coupling Contraction of the cardiac muscle cell is initiated by a transient...
Journal Articles
J Exp Biol (2009) 212 (21): 3403–3414.
Published: 01 November 2009
... acclimation to low temperatures increases the use of SR Ca 2+ in excitationcontraction coupling. The hypotheses that chamber-specific and temperature-induced differences in SR function are due to the increased SR CASQ content were tested in rainbow trout ( Oncorhynchus mykiss )acclimated at either 4°C (cold...
Journal Articles
J Exp Biol (2004) 207 (8): 1369–1377.
Published: 15 March 2004
... equally to this work 19 1 2004 © The Company of Biologists Limited 2004 2004 trout excitation-contraction coupling Na-Ca exchange membrane current teleost heart caffeine In the mammalian heart, β-adrenergic stimulation has both inotropic and lusitropic effects. The...
Journal Articles
J Exp Biol (2002) 205 (23): 3631–3639.
Published: 01 December 2002
...,University of Leeds, Leeds LS2 9JT, UK (e-mail: hollys@sfu.ca ) 21 8 2002 © The Company of Biologists Limited 2002 2002 L-type Ca 2+ current (I Ca ) I Ca inactivation sarcoplasmic reticulum Ca 2+ load excitationcontraction coupling heart rate fish rainbow trout Oncorhynchus...
Journal Articles
J Exp Biol (2002) 205 (22): 3535–3541.
Published: 15 November 2002
... for correspondence (e-mail: iinoue@ier.tokushima-u.ac.jp ) 21 8 2002 © The Company of Biologists Limited 2002 2002 excitationcontraction coupling Ca 2+ skeletal muscle caudal muscle hagfish Eptatretus burgeri Hagfishes are now considered, on both morphological and...
Journal Articles
J Exp Biol (2002) 205 (19): 2957–2962.
Published: 01 October 2002
...+ metabolism adaptation excitationcontraction coupling homeostasis Ca 2+ is a universal intracellular messenger that participates in numerous biological processes from neural regulation to muscle contraction,and from gene expression to cell growth and death (for a review, see Berridge et al...
Journal Articles
J Exp Biol (2001) 204 (21): 3727–3736.
Published: 01 November 2001
... facilitatory relationship, indicating that calcium stores participate in excitationcontraction coupling. Calcium stores were identified ultrastructurally using enzymatic histochemistry to localize CaATPases, and potassium dichromate to precipitate calcium. Electron energy-loss spectroscopy was used to verify...