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Keywords: antioxidants
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Journal Articles
J Exp Biol (2021) 224 (18): jeb243198.
Published: 28 September 2021
... cells, there was no effect of ACTH or RU486 on transforming growth factor-β or interleukin-6 levels; however, both cytokines decreased with the 4 day fasting progression. Similarly, ACTH did not impact protein oxidation, lipid peroxidation or antioxidant enzymes, but plasma isoprostanes and catalase...
Journal Articles
J Exp Biol (2020) 223 (24): jeb234914.
Published: 24 December 2020
... relationship with other stress-related biomarkers, and how the incidence of an immune challenge during long-term stress could affect an individual’s overall stress response. We investigated here the relationship between basal and post-acute stress fecal cortisol metabolite (FC) with different antioxidant...
Journal Articles
J Exp Biol (2020) 223 (13): jeb207613.
Published: 10 July 2020
... of Biologists Ltd 2020 Summary: Here we integrate knowledge gained from studies of anoxia-tolerant species from many animal taxa to identify common strategies, as well as novel solutions, for the challenges of anoxia exposure. Anaerobic metabolism Antioxidants Ischaemia Reactive oxygen species...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (17): jeb200675.
Published: 10 September 2019
... males should favour the antioxidant protection of their somatic tissues, and subordinate males should favour the antioxidant protection of their sperm. We tested this hypothesis by experimentally infecting wild-caught house sparrows Passer domesticus with Coccidia Isopora sp., an internal parasite known...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (13): jeb194688.
Published: 02 July 2019
... oxidative stress, and proposes the ‘redox signalling hypothesis’ of life history. Antioxidants Life history Redox Reproduction Senescence Signalling There is considerable evidence across a wide range of taxa that oxidative (or redox) status (see Glossary) plays a central role...
Journal Articles
J Exp Biol (2019) 222 (12): jeb200246.
Published: 25 June 2019
... and accelerated aging. We contrasted markers of oxidative damage with antioxidant profiles across age and sex for propulsive (longissismus dorsi) and maneuvering (pectoralis) muscles of Weddell seals to determine whether previously observed morphological senescence is associated with oxidative stress...
Journal Articles
J Exp Biol (2019) 222 (5): jeb194530.
Published: 08 March 2019
...Norma Martínez-Lendech; Marcela Osorio-Beristain; Bernardo Franco; Mario Pedraza-Reyes; Armando Obregón; Jorge Contreras-Garduño ABSTRACT In invertebrates, it has recently been reported that secondary sexual characteristics (SSCs) reflect the antioxidant defense of their bearers...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (5): jeb187708.
Published: 01 March 2019
... by 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...
Journal Articles
J Exp Biol (2018) 221 (6): jeb167825.
Published: 19 March 2018
... damage is a major cause of reperfusion injury that becomes worse with subsequent reperfusions if insufficient time is available to fully recover in between ( Lighton and Schilman, 2007 ). To counteract ROS damage, insects increase antioxidant defences during anoxia, in anticipation of reperfusion...
Journal Articles
J Exp Biol (2018) 221 (5): jeb162503.
Published: 01 March 2018
... for assessing the impact of these proteins on oxidative stress. We tested the hypothesis that the lack of oxygen-binding proteins may reduce oxidative stress. Levels and activity of pro-oxidants and small-molecule and enzymatic antioxidants, and levels of oxidized lipids and proteins in the liver, oxidative...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (17): 3162–3171.
Published: 01 September 2017
... is converted into ice. Whilst in the frozen state, their hearts cease to pump blood, causing their cells to experience ischemia, which can dramatically increase the production of reactive oxygen species within the cell. To overcome this, wood frogs have elevated levels of glutathione, a primary antioxidant. We...
Journal Articles
J Exp Biol (2017) 220 (16): 2957–2964.
Published: 15 August 2017
... signals and antioxidant activity . Am. Nat.   164 , 651 - 659 . Ardia , D. R. , Broughton , D. R. and Gleicher , M. J. ( 2010 ). Short-term exposure to testosterone propionate leads to rapid bill color and dominance changes in zebra finches . Horm. Behav.   58 , 526 - 532...
Journal Articles
J Exp Biol (2017) 220 (10): 1749–1760.
Published: 15 May 2017
..., which may cause oxidative stress by degrading key cell components, while playing essential roles in cell homeostasis. Given the delicate equilibrium between pro- and antioxidants in fueling acclimation responses, the need for a thorough understanding of the relationship between salinity-induced...
Journal Articles
J Exp Biol (2017) 220 (9): 1693–1700.
Published: 01 May 2017
... antioxidants. Cortisol caused a significant decrease in growth rates but did not affect predation risk. Over-winter survival in the stream was associated with low levels of oxidative stress and glutathione. Thus, oxidative stress may be a mechanism by which elevated cortisol causes negative physiological...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (4): 582–587.
Published: 15 February 2017
...Ensiyeh Ghanizadeh-Kazerouni; Craig E. Franklin; Frank Seebacher ABSTRACT Ultraviolet B radiation (UV-B) is an important environmental driver that can affect locomotor performance negatively by inducing production of reactive oxygen species (ROS). Prolonged regular exercise increases antioxidant...
Journal Articles
J Exp Biol (2016) 219 (23): 3794–3802.
Published: 01 December 2016
... and -independent mitochondrial proteases, and antioxidants) in tolerance to intermittent hypoxia or anoxia in three species of marine bivalves: hypoxia-tolerant hard clams ( Mercenaria mercenaria ) and oysters ( Crassostrea virginica ), and a hypoxia-sensitive subtidal scallop ( Argopecten irradians ). In clams...
Journal Articles
J Exp Biol (2016) 219 (19): 3155–3162.
Published: 01 October 2016
..., and show a strong antioxidant activity in vitro . Studies of avian species feeding on berries suggest that dietary flavonoids have health-promoting effects and may enhance the expression of melanin-based plumage traits. These effects are probably mediated by the antioxidant activity of flavonoids. However...
Journal Articles
J Exp Biol (2015) 218 (24): 3901–3910.
Published: 01 December 2015
... success or survival, but the physiological mechanisms underlying these costs are still obscure. To test for a role of oxidative stress, we measured oxidative damage to lipids and proteins in liver, heart, kidneys and muscles, as well as the level of antioxidants (total glutathione and catalase...
Journal Articles
J Exp Biol (2015) 218 (13): 2106–2115.
Published: 01 July 2015
...Marie Vaugoyeau; Beatriz Decencière; Samuel Perret; Filiz Karadas; Sandrine Meylan; Clotilde Biard ABSTRACT In the context of sexual and natural selection, an allocation trade-off for carotenoid pigments may exist because of their obligate dietary origin and their role both in the antioxidant...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (23): 4237–4243.
Published: 01 December 2014
... in oxidative damage, an increase in ceruloplasmin (which is upregulated in response to oxidative damage) and a decrease in thiol antioxidants. We also compared the blood oxidative stress level of reproducing birds with that of non-reproducing birds, a crucial aspect that most studies have invariably failed...