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Keywords: oxidative stress
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Journal Articles
J Exp Biol (2021) 224 (8): jeb235820.
Published: 26 April 2021
... workload remain poorly understood. To examine how high workload affects haematology, oxidative stress and reproductive output, we experimentally manipulated foraging effort in captive zebra finches, Taeniopygia guttata , using a previously described technique, and allowed individuals to breed first in low...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (6): jeb233486.
Published: 26 March 2021
... is associated with changes in oxidative status. Avian migration Refuelling Oxidative stress Oxidative damage Lipid peroxidation Enzymatic antioxidants Another aspect that deserves attention in the context of migration eco-physiology is that the majority of studies in birds have...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (5): jeb221606.
Published: 11 March 2021
... they are a significant site, but not necessarily the main source of cellular ROS under most conditions. Mitochondrial respiration, Oxidative damage Oxidative stress Life-history tradeoffs Mitochondria-targeted antioxidants More than half a century ago, Harman (1955) proposed the free...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (4): jeb237156.
Published: 16 February 2021
... mitochondria of M. arenaria than chronic hypoxia and might lead to impaired ATP synthesis, higher costs of mitochondrial maintenance and oxidative stress. These changes might negatively affect populations of M. arenaria in the coastal Baltic Sea under increasing hypoxia pressure. Mitochondria of animals...
Journal Articles
J Exp Biol (2020) 223 (22): jeb223867.
Published: 20 November 2020
...Abigail R. Esquivel; Jenna C. Douglas; Rachel M. Loughran; Thomas E. Rezendes; Kaela R. Reed; Tobias H. L. Cains; Sarah A. Emsley; William A. Paddock; Patrick Videau; Marc J. Koyack; Brie E. Paddock ABSTRACT Oxidative stress, which occurs from an imbalance of reactive oxygen and nitrogen species...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (22): jeb203794.
Published: 18 November 2020
... feedback that greatly improved this paper. References Abdel-Halim , K. Y. , Abo El-Saad , A. M. , Talha , M. M. , Hussein , A. A. and Bakry , N. M. ( 2013 ). Oxidative stress on land snail Helix aspersa as a sentinel organism for ecotoxicological effects of urban pollution...
Journal Articles
J Exp Biol (2020) 223 (21): jeb235002.
Published: 06 November 2020
..., and then the two populations became geographically isolated. We found that, at the beginning of the experiment, Sardinian and Corsican frogs had similar concentrations of all oxidative status markers analysed. One year later, Corsican frogs had higher oxidative stress and suffered higher mortality...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (15): jeb222513.
Published: 04 August 2020
... replicative potential, induce cell senescence and decrease fitness. Stress exposure, which elevates glucocorticoid hormone concentrations, can exacerbate telomere attrition. This phenomenon has been attributed to increased oxidative stress generated by glucocorticoids (‘oxidative stress hypothesis’). We...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (14): jeb214841.
Published: 28 July 2020
... more oxidative stress damage and reduced capacity for antioxidant defense [lower catalase (CAT) activity]. We found no evidence that a higher susceptibility to oxidative stress contributes to female-biased mortality at warm temperatures. We did, however, find that females had significantly lower...
Journal Articles
J Exp Biol (2020) 223 (13): jeb222877.
Published: 06 July 2020
...Brittney G. Borowiec; Graham R. Scott ABSTRACT Hypoxia is common in aquatic environments, and exposure to hypoxia followed by re-oxygenation is often believed to induce oxidative stress. However, there have been relatively few studies of reactive oxygen species (ROS) homeostasis and oxidative...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (12): jeb221630.
Published: 23 June 2020
...-oxidant to counteract oxidative stress associated with vitellogenesis. The relationship between bSO and VTG was strongest in post-ovulatory females, indicating that its function may be largely anti-oxidant at this time. In conclusion, VTG may be under selection to offset oxidative costs of reproduction in...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (6): jeb220095.
Published: 16 March 2020
... levels. Dose–response d-ROMs Heme oxygenase Lipopolysaccharide Oxidative stress Triglyceride As animals navigate their environment, they address challenges such as food acquisition, predator avoidance and mating success. Although these forces are critical in shaping an individual's...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (4): jeb196352.
Published: 26 February 2020
...Kenneth R. Olson ABSTRACT The biological effects of oxidants, especially reactive oxygen species (ROS), include signaling functions (oxidative eustress), initiation of measures to reduce elevated ROS (oxidative stress), and a cascade of pathophysiological events that accompany excessive ROS...
Journal Articles
J Exp Biol (2019) 222 (18): jeb207761.
Published: 18 September 2019
... introduced back to its natal hive. Physiological bee parameters and diet behavior were monitored daily for caged bees over several weeks. Bee samples from both cohorts were sampled weekly for RNA sequencing and oxidative stress analyses. Imidacloprid induced significant protein damage and post-ingestive...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (17): jeb200675.
Published: 10 September 2019
... in sperm quality versus the somatic traits involved in mating success, e.g. their social status. As oxidative stress affects both sperm performance and somatic functions, it has been hypothesized to mediate such a trade-off. According to the oxidation-based soma/germline trade-off hypothesis...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (12): jeb195545.
Published: 25 June 2019
... effects is oxidative stress. Reproduction has been shown to increase or reduce oxidative stress under different conditions and to modify mitochondrial performance. We hypothesized that the changes associated with reproduction can alter how animals respond to future oxidative stressors. We tested this...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (12): jeb203588.
Published: 17 June 2019
... Sheep River Provincial Park, AB, Canada. Fleas were experimentally added to adult female U. columbianus at physiologically demanding times, including birth, lactation and weaning of their young. The body mass of adult females, as well as their oxidative stress and immunity were recorded multiple times...
Journal Articles
J Exp Biol (2019) 222 (7): jeb195909.
Published: 03 April 2019
... males seem to suffer from oxidative stress under relatively cold weather compared with those of brown males, and vice versa under relatively warm weather. Although differently colored males experienced changes in their oxidative status under different temperatures, the link between paternal melanin...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (6): jeb200055.
Published: 21 March 2019
... - 210 . 10.1016/j.atherosclerosis.2015.11.008 Costantini , D. ( 2016 ). Oxidative stress ecology and the d-ROMs test: facts, misfacts and an appraisal of a decade's work . Behav. Ecol. Sociobiol.   70 , 809 - 820 . 10.1007/s00265-016-2091-5 Costantini , D. and Møller , A...
Journal Articles
J Exp Biol (2019) 222 (5): jeb187708.
Published: 01 March 2019
... dietary polyunsaturated fatty acids (PUFA), which, although prone to oxidative damage, may limit mitochondrial ROS production and increase antioxidant capacity. We examined how flight muscles manage oxidative stress during flight, and whether dietary long-chain PUFA influence ROS management or damage...