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Keywords: mitochondrial respiration
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Journal Articles
J Exp Biol (2022) 225 (21): jeb244934.
Published: 16 November 2022
... production originating from mitochondrial respiration. Within this framework, FAO has a much larger FADH 2 /NADH ratio than glucose breakdown. Further, the longer the fatty acid, the higher the FADH 2 /NADH ratio, and the higher the level of ROS production, as complex I, known as a major source of ROS...
Journal Articles
J Exp Biol (2022) 225 (1): jeb243194.
Published: 6 January 2022
...) and swimming performance [critical swimming speed ( U crit ) and cost of transport (COT)] were assessed. In addition, enzyme activities [citrate synthase (CS), cytochrome c oxidase (COX) and lactate dehydrogenase (LDH)] and mitochondrial respiration were examined in red muscle fibres. We found that acclimation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (8): jeb241216.
Published: 16 April 2021
... synthase activities as well as increased succinate contribution to mitochondrial respiration, allowing them to tolerate higher levels of aquatic H 2 S without inhibition of mitochondrial oxygen consumption. Our study reveals distinct physiological strategies in genetic lineages of a single species...
Journal Articles
J Exp Biol (2021) 224 (2): jeb236257.
Published: 26 January 2021
... thermal tolerance. We acclimated Atlantic salmon to 12 and 20°C (for >2 months), and investigated the effects of acute and chronic warming on cardiac mitochondrial respiration and reactive oxygen species (ROS) production (release rate) using high-resolution fluorespirometry. Further, we compared...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (13): jeb226332.
Published: 8 July 2020
.../ Summary: Mitochondrial respiration in a marine mollusc increases with body mass, demonstrating a link with overall growth performance. Mitochondrial respiration Allometric scaling Metabolic rate Proton leak Temperature Growth rate Metabolic rate is a fundamental biological rate...
Journal Articles
J Exp Biol (2019) 222 (22): jeb208074.
Published: 27 November 2019
... cardiac mitochondrial respiration and reactive oxygen species (ROS) release rates using high-resolution fluorespirometry. Further, we investigated how hypoxia acclimation affected the sensitivity of mitochondrial respiration to nitric oxide (NO), and compared mitochondrial lipid and fatty acid (FA...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (21): jeb213017.
Published: 11 November 2019
... of mitochondrial respiration and ATP synthesis ( Villani and Attardi, 2001 ; Gnaiger, 2009 , 2012 ; Kadenbach et al., 2010 ). CCO generally displays excess capacity, especially in heart tissue ( Gnaiger et al., 1998 ). In our study, CIV had excess capacity 1.5- to 2-fold higher than P respiration rate in all...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (18): jeb207951.
Published: 12 September 2019
... of oxidative phosphorylation capacity when temperature decreases. These steps are able to adjust following cold acclimation, allowing the animals to occupy a wide thermal range. Mitochondrial respiration Oxidative phosphorylation Thermal sensitivity Cold acclimation Control Regulation Complex I...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (23): 3719–3728.
Published: 1 December 2016
... glycolytic capacity and CIV activity, which likely facilitates mitochondrial respiration under hypoxic conditions. Compared with low-altitude torrent ducks, they also exhibit differences in enzyme activities in heart and pectoralis muscles that are seemingly unrelated to variation in respiratory capacity...
Journal Articles
J Exp Biol (2016) 219 (1): 96–102.
Published: 1 January 2016
...) in muscle. However, UV-B did not affect the activity of sarco-endoplasmic reticulum ATPase (SERCA), an enzyme associated with muscle calcium cycling and muscle relaxation. UV-B did not affect ADP phosphorylation (state 3) rates of mitochondrial respiration, and it did not alter the amount of ATP produced...
Journal Articles
J Exp Biol (2013) 216 (15): 2889–2895.
Published: 1 August 2013
... mechanisms involved in energy production, including mitochondrial respiration at different steps of the electron transport system (ETS) and related the results to citrate synthase activity in the liver of non-reproductive and reproductive (two and eight pups) female house mice at peak lactation. Whereas we...
Journal Articles
J Exp Biol (2010) 213 (10): 1665–1675.
Published: 15 May 2010
... and distribution, and to (2) evaluate the sensitivity of different enzymes of the electron transport system (ETS) during temperature-induced changes. We measured the impact of temperature of mitochondrial respiration and several key enzymes of mitochondrial metabolism in two mitotypes (s i II and s i III...
Includes: Supplementary data
Journal Articles
J Exp Biol (2008) 211 (12): 1911–1918.
Published: 15 June 2008
... 2008 2008 mitochondrial respiration adenine nucleotide translocase (ANT) uncoupling protein (UCP) Xenopus laevis carboxyatractylate (CAT) In contrast to a high and constant metabolic rate in endothermic mammals,the metabolism of ectothermic vertebrates is rather low. A study...
Includes: Supplementary data
Journal Articles
J Exp Biol (2006) 209 (7): 1274–1284.
Published: 1 April 2006
..., Crassostrea virginica (eastern oysters), using oxygen demand for ATP turnover, protein synthesis, mitochondrial proton leak and non-mitochondrial respiration in isolated gill and hepatopancreas cells as demand-side endpoints and mitochondrial oxidation capacity, abundance and fractional volume as supply-side...
Journal Articles
J Exp Biol (2003) 206 (12): 2059–2072.
Published: 15 June 2003
...T. Andrienko; A. V. Kuznetsov; T. Kaambre; Y. Usson; A. Orosco; F. Appaix; T. Tiivel; P. Sikk; M. Vendelin; R. Margreiter; V. A. Saks SUMMARY Regulation of mitochondrial respiration both by endogenous and exogenous ADP in the cells in situ was studied in isolated and permeabilized cardiomyocytes...