1-20 of 158
Keywords: Heart
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles
J Exp Biol (2023) 226 (17): jeb245990.
Published: 6 September 2023
... temperature-dependent effects. First, while differences in resting heart rate ( f H ) between groups were predictable based on previous research (range ∼28–65 beats min −1 ), with values for 1°C-acclimated fish slightly higher than those of acutely exposed conspecifics, the resting cardiac output ( ) of 1°C...
Includes: Supplementary data
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2022) 225 (15): jeb244307.
Published: 10 August 2022
...Georg Welzel; Stefan Schuster ABSTRACT High voltage electric shocks cause life threatening cardiac injuries such as sudden cardiac standstill or severe myocardial injury. Here, we analysed the physiology of the heart of the strongly electric catfish ( Malapterurus beninensis ) that stuns prey...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (12): jeb243680.
Published: 22 June 2022
... accounting for body mass, heart ventricle mass was not related to variation in MMR or SMR, indicating that the quality of the heart (i.e. the capacity for mitochondrial metabolism) was more influential than heart size. Finally, the myocardial oxygen consumption required to offset the dissipation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (20): jeb242699.
Published: 22 October 2021
... Summary: The circulation of hemolymph in the antenna of Drosophila is powered by the rhythmic contraction of an auto-active somatic muscle which runs through the brain. Circulatory system Pulsatile organs Heart Pulsatility National Institutes of Health http://dx.doi.org/10.13039...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (18): jeb242425.
Published: 15 September 2021
..., superoxide dismutase (SOD) activity and NAD + levels, and it prevented HFD-induced or cardiac Nmnat knockdown-induced cardiac lipid accumulation, malondialdehyde (MDA) content and fibrillation increase, and fractional shortening decrease. Cardiac Nmnat overexpression also activated heart Nmnat/NAD + /SIR2...
Journal Articles
J Exp Biol (2021) 224 (16): jeb242778.
Published: 24 August 2021
...Denis V. Abramochkin; Vladislav S. Kuzmin; Vladimir Matchkov; Andrey A. Kamensky; Tobias Wang ABSTRACT To provide the first description of the exact location of primary pacemaker of the squamate heart, we used sharp microelectrode impalements and optical mapping of isolated sinus venosus...
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2021) 224 (9): jeb242382.
Published: 30 April 2021
... and complex I activity. Fig. 1. Representative trace of the respiration protocol for isolated trout heart mitochondria. Malate (Mal, 2.5 mmol l −1 ) and pyruvate (Pyr, 5 mmol l −1 ) were added to stimulate complex I (CI)-dependent leak respiration (LEAK MP), followed by addition of adenosine...
Journal Articles
Journal Articles
J Exp Biol (2020) 223 (19): jeb229278.
Published: 12 October 2020
... of the conduction system in the rat heart as determined by Leu-7 (HNK-1) immunohistochemistry and computer graphics reconstruction . Lab. Invest.   72 , 355 - 366 . Bezuijen , M. R. , Cox , J. H. , Thorbjarnarson , J. B. , Phothitay , C. , Hedemark , M. and Rasphone , A. ( 2013...
Journal Articles
J Exp Biol (2020) 223 (19): jeb228205.
Published: 8 October 2020
...Tatiana S. Filatova; Denis V. Abramochkin; Holly A. Shiels ABSTRACT Birds occupy a unique position in the evolution of cardiac design. Their hearts are capable of cardiac performance on par with, or exceeding that of mammals, and yet the structure of their cardiomyocytes resembles those of reptiles...
Journal Articles
J Exp Biol (2019) 222 (21): jeb213017.
Published: 11 November 2019
... with oxygen. The highly oxygen-dependent heart mitochondria thus might play a key role in shaping an organism's tolerance to temperature. The present study aimed to investigate the effects of acute and chronic warming on the respiratory capacity of European sea bass ( Dicentrarchus labrax L.) heart...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (17): jeb202788.
Published: 6 September 2019
...Elizabeth F. Johnston; Ivan G. Cadonic; Paul M. Craig; Todd E. Gillis ABSTRACT Warm acclimation of rainbow trout can cause a decrease in the collagen content of the heart. This ability to remove cardiac collagen is particularly interesting considering that collagen deposition in the mammalian heart...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2019) 222 (11): jeb201202.
Published: 4 June 2019
... its redox active motif Cys-X-X-Sec. In mammals, SELENOT is expressed during ontogenesis and progressively decreases in adult tissues. In the heart, it is re-expressed after ischemia and induces cardioprotection against ischemia–reperfusion (IR) injury. SELENOT is present in teleost fish, including...
Journal Articles
J Exp Biol (2018) 221 (12): jeb181107.
Published: 22 June 2018
...Leah T. Sigle; Julián F. Hillyer ABSTRACT The primary pump of the circulatory system of insects is a dorsal vessel that traverses the length of the insect. The anterior portion, located in the head, neck and thorax, is the aorta, and the posterior portion, located in the abdomen, is the heart. Here...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (11): jeb178400.
Published: 7 June 2018
... 2018 16 4 2018 © 2018. Published by The Company of Biologists Ltd 2018 http://www.biologists.com/user-licence-1-1/ Summary: The heart ventricles of squamate reptiles are without a specialized ventricular conduction system, and the manner of electrical activation can therefore...