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Keywords: Cardiac function
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Journal Articles
J Exp Biol (2021) 224 (10): jeb220129.
Published: 27 May 2021
... climate. Antarctic fishes Cardiac function Temperature Metabolism Membranes Ocean warming with its associated decline in oxygen content, coupled with the increase in dissolved CO 2 from the atmosphere, are factors responsible for altering the abundance and distribution of marine...
Journal Articles
J Exp Biol (2017) 220 (2): 147–160.
Published: 15 January 2017
.... The structural remodelling response is thought to be responsible for changes in cardiac stiffness, the Ca 2+ sensitivity of force generation and the rate of force generation by the heart. Such changes to both active and passive properties help to compensate for the loss of cardiac function caused by a...
Journal Articles
J Exp Biol (2015) 218 (9): 1359–1372.
Published: 01 May 2015
...Nishad Jayasundara; Lars Tomanek; W. Wesley Dowd; George N. Somero ABSTRACT Cardiac function is thought to play a central role in determining thermal optima and tolerance limits in teleost fishes. Investigating proteomic responses to temperature in cardiac tissues may provide insights into...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (24): 4678–4690.
Published: 15 December 2013
...O. Lynne Nelson; Bryan C. Rourke SUMMARY Deep hibernators such as golden-mantled ground squirrels ( Callospermophilus lateralis ) have multiple challenges to cardiac function during low temperature torpor and subsequent arousals. As heart rates fall from over 300 beats min −1 to less than 10...
Journal Articles
J Exp Biol (2013) 216 (11): 2111–2121.
Published: 01 June 2013
...Nishad Jayasundara; George N. Somero SUMMARY An insufficient supply of oxygen under thermal stress is thought to define thermal optima and tolerance limits in teleost fish. When under thermal stress, cardiac function plays a crucial role in sustaining adequate oxygen supply for respiring tissues...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (11): 2140–2149.
Published: 01 June 2013
... cardiovascular system at euthermia, despite increased autonomic input to preserve cardiac function. On acute cooling this autonomic control was lost and cardiac performance declined further than for cold-naïve hamsters, suggesting that CA may compromise elements of cardiovascular function to facilitate...
Includes: Supplementary data
Journal Articles
J Exp Biol (2008) 211 (1): 15–23.
Published: 01 January 2008
... exhibit diastolic interval prolongation, heart rhythm abnormalities and a reduced lifespan, while showing no obvious structural phenotype. Our data demonstrate that Mlp84B is essential for normal cardiac function and establish the Drosophila model for the investigation of the mechanisms connecting...
Includes: Supplementary data
Journal Articles
J Exp Biol (2007) 210 (12): 2192–2198.
Published: 15 June 2007
... cardiac mechanics and energetics of this system, and in particular during times of physiological stress. * Author for correspondence (e-mail: jguadagnoli@touro.edu ) 26 3 2007 © The Company of Biologists Limited 2007 2007 invertebrate cardiac function stroke work Palaemonetes...
Journal Articles
J Exp Biol (2006) 209 (11): 2114–2128.
Published: 01 June 2006
... cardiac function. The current study investigated whether steroid-induced inotropism in electrically paced (0.5 Hz, 14°C) ventricle strips at 90% L max (1) has a metabolic requirement for exogenous glucose and (2) is associated with enhanced intracellular Ca 2+ storage and release from the sarcoplasmic...
Journal Articles
J Exp Biol (2004) 207 (12): 2083–2093.
Published: 15 May 2004
...Richard S. Farrar; Kenneth J. Rodnick SUMMARY The purpose of this study was to determine whether steroid hormones modulate cardiac function in rainbow trout ( Oncorhynchus mykiss Walbaum). We assessed the effects of exogenously administered steroids on isolated ventricle strips and report that...
Journal Articles
J Exp Biol (2002) 205 (13): 1881–1888.
Published: 01 July 2002
... possibility that cardiac performance may limit their thermal niches. We used an in situ perfused heart preparation to investigate the effects of acute temperature change and the effects of epinephrine and extracellular Ca 2+ on cardiac function in yellowfin tuna ( Thunnus albacares ). Heart rate showed a...