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Keywords: Heart
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Journal Articles
J Exp Biol jeb.242699.
Published: 29 September 2021
... be important for clearing the interstitial space. * Author for correspondence: alan-kay@uiowa.edu 23 4 2021 22 9 2021 © 2021. Published by The Company of Biologists Ltd 2021 http://www.biologists.com/user-licence-1-1/ Antenna Drosophila Heart Myogenic Pulsatility...
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
J Exp Biol (2021) 224 (15): jeb242487.
Published: 05 August 2021
... of high temperatures than Arctic char, and why char are particularly vulnerable to climate change. Thermal tolerance Heart Myocardium Red muscle Acute Temperature acclimation Muscle performance Muscle efficiency Natural Sciences and Engineering Research Council of Canada http...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (14): jeb242387.
Published: 30 July 2021
... enhanced anoxia survival in adult but not hatchling turtles. To test this, adult and hatchling turtles were acclimated to either 20°C (warm) or 3°C (cold) for 5 weeks, and then the heart ventricles were collected for quantitative proteomic analysis. The relative abundance of 1316 identified proteins...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (9): jeb242382.
Published: 30 April 2021
... and complex I activity. * Author for correspondence ( ammagabu@bio.au.dk ) Competing interests The authors declare no competing or financial interests. 3 2 2021 18 3 2021 © 2021. Published by The Company of Biologists Ltd 2021 Summary: Decreases in trout heart...
Journal Articles
J Exp Biol (2020) 223 (22): jeb225730.
Published: 16 November 2020
... (5H fish), on in vivo and spontaneous heart rate ( f H ), electrocardiogram, ventricular action potential (AP) shape and duration (APD), the background inward rectifier ( I K1 ) and rapid delayed rectifier ( I Kr ) K + currents and ventricular gene expression of proteins involved in excitation...
Journal Articles
J Exp Biol (2020) 223 (19): jeb229278.
Published: 12 October 2020
... . 10.3390/jcdd5030044 Aoyama , N. , Tamaki , H. , Kikawada , R. and Yamashina , S. ( 1995 ). Development 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...
Journal Articles
J Exp Biol (2020) 223 (19): jeb228205.
Published: 08 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: 06 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
J Exp Biol (2019) 222 (16): jeb202242.
Published: 20 August 2019
..., there is urgency to understand the compensatory abilities of key organs such as the heart to adjust under natural conditions. Thus, the aim of the present study was to directly compare the acclimatization and acclimatory response within a single eurythermal fish species, the European shorthorn sculpin...
Journal Articles
J Exp Biol (2019) 222 (11): jeb201202.
Published: 04 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: 07 June 2018
.... Size, developmental stage and gestational duration were not related to heart rate, atrioventricular delay or ventricular activation time ( Table 1 ). This suggests that the mechanistic underpinnings of the measured electrophysiological parameters, like the density of sodium channels and gap junctional...
Journal Articles
J Exp Biol (2017) 220 (23): 4391–4398.
Published: 01 December 2017
...José Guilherme Chaui-Berlinck; Luiz Henrique Alves Monteiro ABSTRACT The Frank–Starling law of the heart is a filling–force mechanism (FFm), a positive relationship between the distension of a ventricular chamber and its force of ejection, and such a mechanism is found across all the studied...
Journal Articles
J Exp Biol (2017) 220 (9): 1674–1683.
Published: 01 May 2017
...   465 , 441 - 445 . 10.1038/nature09066 Ekström , A. , Hellgren , K. , Gräns , A. , Pichaud , N. and Sandblom , E. ( 2016a ). Dynamic changes in scope for heart rate and cardiac autonomic control during warm acclimation in rainbow trout . J. Exp. Biol.   219 , 1106...
Journal Articles
J Exp Biol (2017) 220 (4): 531–536.
Published: 15 February 2017
.... 12 9 2016 6 12 2016 © 2017. Published by The Company of Biologists Ltd 2017 http://www.biologists.com/user-licence-1-1/ Summary: Shunting in reptiles is ineffective for regulating gastric CO 2 supply but effectively reduces blood O 2 levels. Gas exchange Heart...
Journal Articles
J Exp Biol (2016) 219 (17): 2763–2773.
Published: 01 September 2016
... of the first two steps in glucose utilization in the gas gland of Atlantic cod ( Gadus morhua ). Glucose metabolism by isolated gas gland cells was 12- and 170-fold higher, respectively, than that in heart and red blood cells (RBCs) as determined by the production of 3 H 2 O from [2- 3 H]glucose. In the gas...
Journal Articles
J Exp Biol (2016) 219 (8): 1154–1161.
Published: 15 April 2016
... large hearts, multiple ‘normal’ sized hearts spaced at regular intervals up the neck or held their necks horizontal, or that the siphon effect was in operation. By means of an experimental model, we demonstrate that the siphon principle is able to explain how blood was able to adequately perfuse...