... after a post-weaning period, during which they fast and progressively increase their activity, making this period critical for the development of an adaptive response to oxygen restriction and oxidative stress. We compared the functional capacity of a swimming muscle in 5 recently weaned and 6 adult...

... thermal cycle; (3) constant high temperature (20°C); and (4) diel thermal cycling (12 to 20°C every 24 h). Exposure to 20°C causes increases plasma lactate and glucose, an imbalance in antioxidant systems, and oxidative stress in the liver. The 20°C treatment also elevated fractional rates of protein...

.... , Sahiner , U. M. , Sackesen , C. , Erzurum , S. and Kalayci , O. ( 2012 ). Oxidative stress and antioxidant defense . World Allergy Organ. J. 5 , 9 - 19 . 10.1097/WOX.0b013e3182439613 Borowiec , B. G. and Scott , G. R. ( 2020 ). Hypoxia acclimation alters...

... but not their cellular metabolism; the number of individuals in the nest is associated with different cellular metabolic rates independently of the treatment. Animal performance Brood size Cellular metabolism Oxidative stress Parus major Opetushallitus http://dx.doi.org/10.13039/501100011842...

... a high variability in responsiveness towards various pathogens; they can safely harbor certain pathogens that are highly lethal to other mammals. Oxidative stress may act as a pathophysiological cellular mechanism mediating the immunological function of bats because of its potentially detrimental effects...

... such as oxidative stress have also been hypothesized to contribute. For example, mussels in the genus Mytilus exhibit evolved physiological differences at several levels of organization that have been linked with interspecific differences in whole-organism heat tolerance. Both omics and behavioral studies suggested...

... as being reoxygenated after a hypoxic period, which provokes oxidative stress. Additionally, we determined substrate levels for energy metabolism and neurotransmission in brain tissue samples. Recently, it has been suggested that the lipid composition of membranes facilitates metabolic suppression...

..., post-natal THs, mitochondria and oxidative stress), telomere length and medium-term survival using wild great tits as a model system. While prenatal THs did not significantly affect telomere length a week after hatching (i.e. day 7), they influenced postnatal telomere shortening (i.e. shorter telomeres...

... physiology and oxidative stress have been implicated as important mediators of life-history trade-offs. The goal of this investigation was to uncover the physiological mechanisms responsible for the enhanced trade-off between self-maintenance and offspring investment when an animal is exposed to stressful...

... Summary: Low food availability, but not infection, negatively affects mitochondrial function and flight performance in monarch butterflies, with potential implications for migration, fitness and population dynamics. Dietary restriction Infection Metabolic rate Migration Oxidative stress...

... for a slight increase in the OXPHOS state during post-hypoxic recovery. A decrease in NADH-driven respiration and ROS production, enhanced capacity for succinate oxidation and resistance to RET might assist in post-hypoxic recovery of oysters mitigating oxidative stress and supporting rapid ATP re-synthesis...

... phenomena in reciprocally transplanted land snail Helix lucorum at 0 and 1250 m altitudes underline phenotypic plasticity as a response to seasonal environmental changes in corresponding habitats. Species distribution Temperature variation Tissue-specific response Oxidative stress Vertical...

... antioxidant enzymes superoxide dismutase and catalase, while intermediate-laid eggs showed increased levels of lipid peroxidation. However, elevated yolk CORT did not affect oxidative stress endpoints in the brain. Our results indicate that elevated yolk CORT levels affect prenatal embryo development...

... there is more intense competition. Oxidative stress has been proposed as a potential cost of social dominance, but few studies have examined this cost in relation to social stability. We studied the cost of social dominance in the cichlid fish Astatotilapia burtoni by manipulating social stability among males...

... and greater costs associated with protein turnover. Oxidative stress Protein turnover Autophagy Ubiquitin proteasome system National Institute of Diabetes and Digestive and Kidney Diseases http://dx.doi.org/10.13039/100000062 grant R15DK106688 It has long been recognized...

...: Hypercapnic conditions during postlarval development improve physiological performance and oxidative status in Panopea generosa . Ocean acidification Oxidative stress Phenotypic variation Stress acclimation Geoduck Foundation for Food and Agriculture Research http://dx.doi.org/10.13039...

... 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...

... of the migratory phenotype in birds is associated with changes in oxidative status. Avian migration Refuelling Oxidative stress Oxidative damage Lipid peroxidation Enzymatic antioxidants All sampling procedures were performed under the same photoperiod conditions (i.e. 12 h:12 h light:dark...

... that 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 radical theory...

... on the 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. * Author...