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Coughlan K, Sadowska ET, Bauchinger U. Repeat Sampling of Female Passerines During Reproduction Reveals Surprising Higher Plasma Oxidative Damage During Resting Compared to Active State. Integr Comp Biol 2023; 63:1197-1208. [PMID: 37698890 PMCID: PMC10755187 DOI: 10.1093/icb/icad120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/07/2023] [Accepted: 09/07/2023] [Indexed: 09/13/2023] Open
Abstract
Traditional models of oxidative stress predict accumulation of damage caused by reactive oxygen species (ROS) production as highly correlated with aerobic metabolism, a prediction under increasing scrutiny. Here, we repeat sampled female great tits (Parus major) at two opposite levels of energy use during the period of maximum food provisioning to nestlings, once at rest and once during activity. Our results were in contrast to the above prediction, namely significantly higher levels of oxidative damage during rest opposed to active phase. This discrepancy could not be explained neither using levels of "first line" antioxidant enzymes activity measured from erythrocytes, nor from total nonenzymatic antioxidant capacity measured from plasma, as no differences were found between states. Significantly higher levels of uric acid, a potent antioxidant, were seen in the plasma during the active phase than in rest phase, which may explain the lower levels of oxidative damage despite high levels of physical activity. Our results challenge the hypothesis that oxidative stress is elevated during times with high energy use and call for more profound understanding of potential drivers of the modulation of oxidative stress such as metabolic state of the animal, and thus also the time of sampling in general.
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Affiliation(s)
- Kyle Coughlan
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Edyta T Sadowska
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Ulf Bauchinger
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St., 02-093 Warsaw, Poland
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2
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Berntsen HH, Bech C. Incubation temperature and physiological aging in the zebra finch. PLoS One 2021; 16:e0260037. [PMID: 34843532 PMCID: PMC8629242 DOI: 10.1371/journal.pone.0260037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 10/30/2021] [Indexed: 11/19/2022] Open
Abstract
In birds, incubation temperature has received increased attention as an important source of phenotypic variability in offspring. A lower than optimal incubation temperature may negatively affect aspects of nestling physiology, such as body growth and energy metabolism. However, the long-term effects of sub-optimal incubation temperature on morphology and physiology are not well understood. In a previous study, we showed that zebra finches from eggs incubated at a low temperature (35.9°C) for 2/3 of the total incubation time suffered a lower post-fledging survival compared to individuals that had been incubated at higher temperatures (37.0 and 37.9°C). In the present study, we investigated whether these variations in incubation temperature could cause permanent long-lasting differences in body mass, body size, or basal metabolic rate. Furthermore, we tested whether the observed differences in survival between treatment groups would be reflected in the rate of physiological deterioration, assessed through oxidative damage and decreased metabolic rate with age (i.e. 'metabolic aging'). Incubation temperature did not significantly affect embryonic or nestling body growth and did not influence final adult body mass or body size. Nor was there any long-term effect on basal metabolic rate. Birds from eggs incubated at the lowest temperature experienced an accumulation of oxidative damage with age, although this was not accompanied by an accelerated rate of metabolic aging. The present results suggest that the low survival in these birds was possibly mediated by increased oxidative stress, but independent of body growth and the basal metabolic rate.
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Affiliation(s)
- Henrik H. Berntsen
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Norwegian Institute for Nature Research, Trondheim, Norway
| | - Claus Bech
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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3
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Těšický M, Krajzingrová T, Świderská Z, Syslová K, Bílková B, Eliáš J, Velová H, Svobodová J, Bauerová P, Albrecht T, Vinkler M. Longitudinal evidence for immunosenescence and inflammaging in free-living great tits. Exp Gerontol 2021; 154:111527. [PMID: 34428476 DOI: 10.1016/j.exger.2021.111527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 12/30/2022]
Abstract
The first-line effector mechanisms of immune defence, including inflammation and oxidative burst, contribute significantly to host-pathogen resistance. Whether these immune responses undergo age-related changes in birds remains unknown. Here, we tracked selected inflammatory parameters in 54 free-living great tits (Parus major) of known age, captured repeatedly over three consecutive years, with the aims to investigate long-term repeatability and age-dependent changes in cellular oxidative burst responsiveness upon in vitro stimulation with bacterial lipopolysaccharide (LPS), and to identify its relationships with leukotriene B4 (LTB4) levels and haematological traits. In addition, we linked these immunological traits to selected physiological markers (antioxidants and oxidative stress markers). LTB4 levels increased with age and we have shown a similar non-significant tendency also for absolute granulocyte counts, indicating propagating chronic inflammation over the bird's lifetime, consistent with the inflammaging hypothesis. In contrast, cellular oxidative burst followed a quadratic trend of dependency on age with a peak in midlife individuals, in line with the immunosenescence hypothesis. Interestingly, LTB4 levels were positively associated with general oxidative damage, but negatively with antioxidant glutathione peroxidase activity, indicating links to redox balance. This longitudinal study demonstrates the contrasting patterns of age-related changes in background and acute markers of pro-inflammatory immunity contributing to immunosenescence in birds and thus provides basis for interpretation of the tested inflammatory markers in cross-cohort datasets.
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Affiliation(s)
- Martin Těšický
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic.
| | - Tereza Krajzingrová
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic
| | - Zuzana Świderská
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic; Charles University, Faculty of Science, Department of Cell Biology, Viničná 7, 128 43 Prague, Czech Republic
| | - Kamila Syslová
- Laboratory of Medicinal Diagnostics, Department of Organic Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
| | - Barbora Bílková
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic
| | - Jiří Eliáš
- Czech University of Life Sciences, Department of Ecology, Faculty of Environmental Sciences, Kamýcká 129, Prague, Czech Republic
| | - Hana Velová
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic
| | - Jana Svobodová
- Czech University of Life Sciences, Department of Ecology, Faculty of Environmental Sciences, Kamýcká 129, Prague, Czech Republic
| | - Petra Bauerová
- Czech Hydrometeorological Institute, Tušimice Observatory, Tušimice 6, Kadaň 432 01, Czech Republic
| | - Tomáš Albrecht
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic; Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, Brno 603 65, Czech Republic
| | - Michal Vinkler
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43 Prague, Czech Republic.
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4
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Goodchild CG, DuRant SE. Fluorescent Heme Degradation Products Are Biomarkers of Oxidative Stress and Linked to Impaired Membrane Integrity in Avian Red Blood Cells. Physiol Biochem Zool 2020; 93:129-139. [PMID: 32027232 DOI: 10.1086/707920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Oxidative stress is generally understood to be an important mediator of life-history traits, yet the specific relationships between oxidative stress and life-history traits have been difficult to describe because there is often a lack of covariation among biomarkers of oxidative stress. For instance, although oxidative damage to red blood cell (RBC) membranes can lead to pathological conditions (i.e., anemia), in some cases there is not a clear relationship between lipid oxidation and RBC membrane resistance to pro-oxidants. Alternatively, oxidative damage to hemoglobin may be an indirect mechanism contributing to RBC membrane damage. To better understand the mechanisms contributing to oxidative damage and probe new approaches to measuring oxidative stress, we used a series of in vitro and in vivo procedures in zebra finches (Taeniopygia guttata) to explore (1) whether avian RBCs exposed to a pro-oxidant generate fluorescent heme degradation products (HDPs), (2) whether HDPs interact with RBC membranes, and (3) whether HDPs are linked to impaired RBC integrity. We found that finch RBCs exposed in vitro to hydrogen peroxide produced fluorescent HDPs and HDPs associated with RBC membranes. Exposure to hydrogen peroxide also caused a reduction in hemoglobin and an increase in percent methemoglobin (a hemoglobin oxidation product), further indicating hemoglobin degradation. Moreover, HDP fluorescence correlated with impaired membrane integrity and erythrocyte osmotic fragility in vivo. This study suggests that reactive oxygen species may indirectly impair RBC membrane integrity via hemoglobin degradation products that associate with RBC membranes and that HDPs may be an inexpensive and logistically simple tool for measuring oxidative stress.
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5
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Bodey TW, Cleasby IR, Blount JD, McElwaine G, Vigfusdottir F, Bearhop S. Consistent measures of oxidative balance predict survival but not reproduction in a long‐distance migrant. J Anim Ecol 2020; 89:1872-1882. [DOI: 10.1111/1365-2656.13237] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 03/27/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Thomas W. Bodey
- Centre for Ecology & Conservation University of Exeter Penryn Campus Penryn UK
- School of Biological Sciences University of Auckland Auckland New Zealand
| | - Ian R. Cleasby
- Centre for Ecology & Conservation University of Exeter Penryn Campus Penryn UK
- Royal Society for the Protection of Birds Centre for Conservation Science Inverness UK
| | - Jonathan D. Blount
- Centre for Ecology & Conservation University of Exeter Penryn Campus Penryn UK
| | | | - Freydis Vigfusdottir
- Faculty of Life and Environmental Sciences and School of Social Sciences University of Iceland Reykjavik Iceland
| | - Stuart Bearhop
- Centre for Ecology & Conservation University of Exeter Penryn Campus Penryn UK
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Langille E, Lemieux V, Garant D, Bergeron P. Development of small blood volume assays for the measurement of oxidative stress markers in mammals. PLoS One 2018; 13:e0209802. [PMID: 30589904 PMCID: PMC6307736 DOI: 10.1371/journal.pone.0209802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 12/11/2018] [Indexed: 02/06/2023] Open
Abstract
Measuring oxidative stress has become increasingly valuable in ecological studies, especially when different markers are measured on the same individual. However, many of the current methods lack sensitivity for analysis of low blood volume samples, which represent a challenge for longitudinal field studies of small organisms. Small blood volumes can usually only be analysed by using a single assay, therefore providing limited information on individual's oxidative profile. In this study, we used blood collected from a population of wild eastern chipmunks (Tamias striatus) and modified methods presented in the literature to improve analytical selectivity and sensitivity required for small blood volumes. Specifically, we proposed a modified malondialdehyde (MDA) analysis protocol by HPLC and also optimized both the uric acid independent ferric reducing antioxidant power (FRAP) and hypochlorous acid shock capacity (HASC) assays. Development of the three modified methods was achieved with a sensitivity and repeatability that meets standards of field ecology while allowing measurement of all three assays in duplicate using less than 60 μL of plasma. Availability of these tests using small blood volumes will provide ecologists with a more comprehensive portrait of an individual's oxidative profile and a better understanding of its determinants and interactions with the environment.
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Affiliation(s)
- Evan Langille
- Bishop’s University, Sherbrooke, Québec, Canada
- Chemistry Department, Memorial University of Newfoundland, St. John’s, NL, Canada
| | - Vincent Lemieux
- Bishop’s University, Sherbrooke, Québec, Canada
- Département de biologie, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Dany Garant
- Département de biologie, Université de Sherbrooke, Sherbrooke, Québec, Canada
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7
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Deviche P, Valle S, Gao S, Davies S, Bittner S, Carpentier E. The seasonal glucocorticoid response of male Rufous-winged Sparrows to acute stress correlates with changes in plasma uric acid, but neither glucose nor testosterone. Gen Comp Endocrinol 2016; 235:78-88. [PMID: 27292791 DOI: 10.1016/j.ygcen.2016.06.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 05/09/2016] [Accepted: 06/08/2016] [Indexed: 10/21/2022]
Abstract
We sought to clarify functional relationships between baseline and acute stress-induced changes in plasma levels of the stress hormone corticosterone (CORT) and the reproductive hormone testosterone (T), and those of two main metabolites, uric acid (UA) and glucose (GLU). Acute stress in vertebrates generally stimulates the secretion of glucocorticoids, which in birds is primarily CORT. This stimulation is thought to promote behavioral and metabolic changes, including increased glycemia. However, limited information in free-ranging birds supports the view that acutely elevated plasma CORT stimulates glycemia. Acute stress also often decreases the secretion of reproductive hormones (e.g., T in males), but the role of CORT in this decrease and the contribution of T to the regulation of plasma GLU remain poorly understood. We measured initial (pre-stress) and acute stress-induced plasma CORT and T as well as GLU in adult male Rufous-winged Sparrows, Peucaea carpalis, sampled during the pre-breeding, breeding, post-breeding molt, and non-breeding stages. Stress increased plasma CORT and the magnitude of this increase did not differ across life history stages. The stress-induced elevation of plasma CORT was consistently associated with decreased plasma UA, suggesting a role for CORT in the regulation of plasma UA during stress. During stress plasma GLU either increased (pre-breeding), did not change (breeding), or decreased (molt and non-breeding), and plasma T either decreased (pre-breeding and breeding) or did not change (molt and non-breeding). These data provide only partial support to the hypothesis that CORT secretion during acute stress exerts a hyperglycemic action or is responsible for the observed decrease in plasma T taking place at certain life history stages. They also do not support the hypothesis that rapid changes in plasma T influence glycemia.
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Affiliation(s)
- Pierre Deviche
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA.
| | - Shelley Valle
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA
| | - Sisi Gao
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA
| | - Scott Davies
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Stephanie Bittner
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA
| | - Elodie Carpentier
- Universite de Poitiers, Faculte des Sciences Fondamentales et Appliquees, Poitiers F-86022, France
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8
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Urvik J, Meitern R, Rattiste K, Saks L, Hõrak P, Sepp T. Variation in the Markers of Nutritional and Oxidative State in a Long-Lived Seabird: Associations with Age and Longevity. Physiol Biochem Zool 2016; 89:417-40. [PMID: 27617362 DOI: 10.1086/688180] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Age-related declines in life-history traits have been widely observed in free-living animals. Several theories link senescence to oxidative stress. The aim of this study was to measure several widely used markers of oxidative and nutritional state in a long-lived seabird, the common gull (Larus canus), in order to assess the suitability of these markers for describing deterioration in physiological condition associated with chronological age and survival. Associations with longevity and individual consistency of these parameters over the years (repeatability) were also assessed. Senescence in fitness parameters was observed during the study period: in females, laying date and clutch mass were related to bird age in a curvilinear manner, with middle-aged birds breeding earlier and laying heavier eggs. The only parameter associated with aging processes was glutathione concentration in erythrocytes, which was lower in female birds with longer life spans. Of indexes of nutritional state, plasma triglyceride concentration showed a between-individual increase with age, suggesting selective mortality of birds with low levels. Additionally, total plasma protein levels of individual males increased with age. The mostly negative results of this study hint that the commonly used parameters of physiological condition and oxidative state used in this study do not adequately reflect an individual's long-term health condition. Alternatively, it is possible that in common gulls, senescence occurs in reproductive mechanisms but not in mechanisms responsible for maintaining an organism's redox balance, consistent with the idea that different aspects of an organism's physiological condition age at different rates. Significant interannual repeatability was detected in three plasma constituents-carotenoids, uric acid, and total protein-all of which can possibly be linked to variation in dietary habits.
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9
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Butler MW, Lutz TJ, Fokidis HB, Stahlschmidt ZR. Eating increases oxidative damage in a reptile. J Exp Biol 2016; 219:1969-73. [DOI: 10.1242/jeb.138875] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/07/2016] [Indexed: 11/20/2022]
Abstract
While eating has substantial benefits in terms of both nutrient and energy acquisition, there are physiological costs associated with digesting and metabolizing a meal. Frequently, these costs have been documented in the context of energy expenditure while other physiological costs have been relatively unexplored. Here, we tested whether the seemingly innocuous act of eating affects either systemic pro-oxidant (reactive oxygen metabolites: ROM) levels or antioxidant capacity of corn snakes (Pantherophis guttatus) by collecting plasma during absorptive (peak increase in metabolic rate due to digestion of a meal) and non-absorptive (baseline) states. When individuals were digesting a meal, there was a minimal increase in antioxidant capacity relative to baseline (4%), but a substantial increase in ROMs (nearly 155%), even when controlling for circulating nutrient levels. We report an oxidative cost of eating that is much greater than that due to long distance flight or mounting an immune response in other taxa. This result demonstrates the importance of investigating non-energetic costs associated with meal processing, and it begs future work to identify the mechanism(s) driving this increase in ROM levels. Because energetic costs associated with eating are taxonomically widespread, identifying the taxonomic breadth of eating-induced ROM increases may provide insights into the interplay between oxidative damage and life history theory.
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Affiliation(s)
| | - Thomas J. Lutz
- Department of Biology, Lafayette College, Easton, PA 18042, USA
| | - H. Bobby Fokidis
- Department of Biology, Rollins College, Winter Park, FL 32789, USA
| | - Zachary R. Stahlschmidt
- Department of Biology, Georgia Southern University, Statesboro, GA 30460, USA
- Department of Biological Sciences, University of the Pacific, Stockton, CA 95211, USA
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10
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Christensen LL, Selman C, Blount JD, Pilkington JG, Watt KA, Pemberton JM, Reid JM, Nussey DH. Plasma markers of oxidative stress are uncorrelated in a wild mammal. Ecol Evol 2015; 5:5096-108. [PMID: 26640685 PMCID: PMC4662306 DOI: 10.1002/ece3.1771] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 09/03/2015] [Accepted: 09/17/2015] [Indexed: 01/19/2023] Open
Abstract
Oxidative stress, which results from an imbalance between the production of potentially damaging reactive oxygen species versus antioxidant defenses and repair mechanisms, has been proposed as an important mediator of life‐history trade‐offs. A plethora of biomarkers associated with oxidative stress exist, but few ecological studies have examined the relationships among different markers in organisms experiencing natural conditions or tested whether those relationships are stable across different environments and demographic groups. It is therefore not clear to what extent studies of different markers can be compared, or whether studies that focus on a single marker can draw general conclusions regarding oxidative stress. We measured widely used markers of oxidative damage (protein carbonyls and malondialdehyde) and antioxidant defense (superoxide dismutase and total antioxidant capacity) from 706 plasma samples collected over a 4‐year period in a wild population of Soay sheep on St Kilda. We quantified the correlation structure among these four markers across the entire sample set and also within separate years, age groups (lambs and adults), and sexes. We found some moderately strong correlations between some pairs of markers when data from all 4 years were pooled. However, these correlations were caused by considerable among‐year variation in mean marker values; correlation coefficients were small and not significantly different from zero after accounting for among‐year variation. Furthermore, within each year, age, and sex subgroup, the pairwise correlation coefficients among the four markers were weak, nonsignificant, and distributed around zero. In addition, principal component analysis confirmed that the four markers represented four independent axes of variation. Our results suggest that plasma markers of oxidative stress may vary dramatically among years, presumably due to environmental conditions, and that this variation can induce population‐level correlations among markers even in the absence of any correlations within contemporaneous subgroups. The absence of any consistent correlations within years or demographic subgroups implies that care must be taken when generalizing from observed relationships with oxidative stress markers, as each marker may reflect different and potentially uncoupled biochemical processes.
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Affiliation(s)
- Louise L Christensen
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen UK
| | - Colin Selman
- Glasgow Ageing Research Network (GARNER) Institute of Biodiversity Animal Health and Comparative Medicine University of Glasgow Glasgow UK
| | - Jonathan D Blount
- College of Life and Environmental Sciences University of Exeter Penryn Campus UK
| | - Jill G Pilkington
- Institute of Evolutionary Biology University of Edinburgh Edinburgh UK
| | - Kathryn A Watt
- Institute of Evolutionary Biology University of Edinburgh Edinburgh UK
| | | | - Jane M Reid
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen UK
| | - Daniel H Nussey
- Institute of Evolutionary Biology University of Edinburgh Edinburgh UK
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11
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Pap PL, Pătraş L, Osváth G, Buehler DM, Versteegh MA, Sesarman A, Banciu M, Vágási CI. Seasonal Patterns and Relationships among Coccidian Infestations, Measures of Oxidative Physiology, and Immune Function in Free-Living House Sparrows over an Annual Cycle. Physiol Biochem Zool 2015; 88:395-405. [DOI: 10.1086/681243] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Skin pentosidine and telomere length do not covary with age in a long-lived seabird. Biogerontology 2015; 16:435-41. [DOI: 10.1007/s10522-015-9564-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 02/24/2015] [Indexed: 10/23/2022]
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13
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Arnold KE, Herborn KA, Adam A, Alexander L. Individual variation in the oxidative costs of personality traits. Funct Ecol 2014. [DOI: 10.1111/1365-2435.12375] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
| | - Katherine A. Herborn
- Institute of Biodiversity Animal Health and Comparative Medicine School of Life Sciences College of Medical Veterinary and Life Sciences University of Glasgow Glasgow G12 8QQ UK
| | - Aileen Adam
- Institute of Biodiversity Animal Health and Comparative Medicine School of Life Sciences College of Medical Veterinary and Life Sciences University of Glasgow Glasgow G12 8QQ UK
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14
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Pap PL, Sesarman A, Vágási CI, Buehler DM, Pătraş L, Versteegh MA, Banciu M. No Evidence for Parasitism-Linked Changes in Immune Function or Oxidative Physiology over the Annual Cycle of an Avian Species. Physiol Biochem Zool 2014; 87:729-39. [DOI: 10.1086/676934] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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15
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Stier A, Bize P, Roussel D, Schull Q, Massemin S, Criscuolo F. Mitochondrial uncoupling as a regulator of life-history trajectories in birds: an experimental study in the zebra finch. ACTA ACUST UNITED AC 2014; 217:3579-89. [PMID: 25063856 DOI: 10.1242/jeb.103945] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Mitochondria have a fundamental role in the transduction of energy from food into ATP. The coupling between food oxidation and ATP production is never perfect, but may nevertheless be of evolutionary significance. The 'uncoupling to survive' hypothesis suggests that 'mild' mitochondrial uncoupling evolved as a protective mechanism against the excessive production of damaging reactive oxygen species (ROS). Because resource allocation and ROS production are thought to shape animal life histories, alternative life-history trajectories might be driven by individual variation in the degree of mitochondrial uncoupling. We tested this hypothesis in a small bird species, the zebra finch (Taeniopygia guttata), by treating adults with the artificial mitochondrial uncoupler 2,4-dinitrophenol (DNP) over a 32-month period. In agreement with our expectations, the uncoupling treatment increased metabolic rate. However, we found no evidence that treated birds enjoyed lower oxidative stress levels or greater survival rates, in contrast to previous results in other taxa. In vitro experiments revealed lower sensitivity of ROS production to DNP in mitochondria isolated from skeletal muscles of zebra finch than mouse. In addition, we found significant reductions in the number of eggs laid and in the inflammatory immune response in treated birds. Altogether, our data suggest that the 'uncoupling to survive' hypothesis may not be applicable for zebra finches, presumably because of lower effects of mitochondrial uncoupling on mitochondrial ROS production in birds than in mammals. Nevertheless, mitochondrial uncoupling appeared to be a potential life-history regulator of traits such as fecundity and immunity at adulthood, even with food supplied ad libitum.
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Affiliation(s)
- Antoine Stier
- University of Angers, Groupe Écologie et Conservation des Vertébrés (GECCO), 49045 Angers, Cedex 01, France
| | - Pierre Bize
- Department of Ecology and Evolution, University of Lausanne, Biophore 1015 Lausanne-Dorigny, Switzerland
| | - Damien Roussel
- Laboratoire d'Écologie des Hydrosystèmes Naturels et Anthropisés, CNRS UMR 5023, Université de Lyon, 69622 Villeurbanne Cedex, France
| | - Quentin Schull
- University of Strasbourg, Institut Pluridisciplinaire Hubert Curien, 67037 Strasbourg Cedex, France Département d'Ecologie, Physiologie et Ethologie (DEPE), CNRS UMR 7178, 23 rue Becquerel, 67087 Strasbourg Cedex 2, France
| | - Sylvie Massemin
- University of Strasbourg, Institut Pluridisciplinaire Hubert Curien, 67037 Strasbourg Cedex, France Département d'Ecologie, Physiologie et Ethologie (DEPE), CNRS UMR 7178, 23 rue Becquerel, 67087 Strasbourg Cedex 2, France
| | - François Criscuolo
- University of Strasbourg, Institut Pluridisciplinaire Hubert Curien, 67037 Strasbourg Cedex, France Département d'Ecologie, Physiologie et Ethologie (DEPE), CNRS UMR 7178, 23 rue Becquerel, 67087 Strasbourg Cedex 2, France
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16
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Giraudeau M, McGraw KJ. Physiological Correlates of Urbanization in a Desert Songbird. Integr Comp Biol 2014; 54:622-32. [DOI: 10.1093/icb/icu024] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Romero-Haro AA, Alonso-Alvarez C. Covariation in Oxidative Stress Markers in the Blood of Nestling and Adult Birds. Physiol Biochem Zool 2014; 87:353-62. [DOI: 10.1086/674432] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Stier A, Viblanc VA, Massemin‐Challet S, Handrich Y, Zahn S, Rojas ER, Saraux C, Le Vaillant M, Prud'homme O, Grosbellet E, Robin J, Bize P, Criscuolo F. Starting with a handicap: phenotypic differences between early‐ and late‐born king penguin chicks and their survival correlates. Funct Ecol 2014. [DOI: 10.1111/1365-2435.12204] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antoine Stier
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Vincent A. Viblanc
- Centre d'Ecologie Fonctionnelle et Evolutive CNRS‐UM2 UMR 5175 1919 route de Mende 34293 Montpellier cedex 5 France
| | - Sylvie Massemin‐Challet
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Yves Handrich
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Sandrine Zahn
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Emilio R. Rojas
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Claire Saraux
- Laboratoire des Ressources Halieutiques IFREMER Av. Jean Monnet BP 171 34203 Sète Cedex France
| | - Maryline Le Vaillant
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Onésime Prud'homme
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Edith Grosbellet
- Institut des Neurosciences Cellulaires et Intégratives CNRS UPR 3212 5 rue Blaise Pascal 67084 Strasbourg France
| | - Jean‐Patrice Robin
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
| | - Pierre Bize
- Department of Ecology and Evolution Biophore University of Lausanne CH‐1015 Lausanne Switzerland
| | - Francois Criscuolo
- Institut Pluridisciplinaire Hubert Curien Département Ecologie, Physiologie et Ethologie CNRS‐UDS UMR 7178 23 rue Becquerel 67087 Strasbourg Cedex 2 France
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Bokony V, Lendvai AZ, Vagasi CI, Patras L, Pap PL, Nemeth J, Vincze E, Papp S, Preiszner B, Seress G, Liker A. Necessity or capacity? Physiological state predicts problem-solving performance in house sparrows. Behav Ecol 2013. [DOI: 10.1093/beheco/art094] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Moreno J, Velando A, González-Braojos S, Ruiz-de-Castañeda R, Cantarero A. Females Paired with More Attractive Males Show Reduced Oxidative Damage: Possible Direct Benefits of Mate Choice in Pied Flycatchers. Ethology 2013. [DOI: 10.1111/eth.12112] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Juan Moreno
- Departamento de Ecología Evolutiva; Museo Nacional de Ciencias Naturales-CSIC; Madrid Spain
| | - Alberto Velando
- Departamento de Ecoloxía y Bioloxía Animal; Universidade de Vigo; Vigo Spain
| | - Sonia González-Braojos
- Departamento de Ecología Evolutiva; Museo Nacional de Ciencias Naturales-CSIC; Madrid Spain
| | | | - Alejandro Cantarero
- Departamento de Ecología Evolutiva; Museo Nacional de Ciencias Naturales-CSIC; Madrid Spain
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Meitern R, Sild E, Lind MA, Männiste M, Sepp T, Karu U, Hõrak P. Effects of Endotoxin and Psychological Stress on Redox Physiology, Immunity and Feather Corticosterone in Greenfinches. PLoS One 2013; 8:e67545. [PMID: 23805316 PMCID: PMC3689720 DOI: 10.1371/journal.pone.0067545] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 05/20/2013] [Indexed: 12/24/2022] Open
Abstract
Assessment of costs accompanying activation of immune system and related neuroendocrine pathways is essential for understanding the selective forces operating on these systems. Here we attempted to detect such costs in terms of disruption to redox balance and interference between different immune system components in captive wild-caught greenfinches (Carduelis chloris). Study birds were subjected to an endotoxin-induced inflammatory challenge and temporary exposure to a psychological stressor (an image of a predator) in a 2*2 factorial experiment. Injection of bacterial endotoxin resulted in up-regulation of two markers of antioxidant protection – erythrocyte glutathione, and plasma oxygen radical absorbance (OXY). These findings suggest that inflammatory responses alter redox homeostasis. However, no effect on markers of oxidative damage to proteins or DNA in erythrocytes could be detected. We found no evidence that the endotoxin injection interfered with antibody production against Brucella abortus antigen or the intensity of chronic coccidiosis. The hypothesis of within-immune system trade-offs as a cost of immunity was thus not supported in our model system. We showed for the first time that administration of endotoxin can reduce the level of corticosterone deposited into feathers. This finding suggests a down-regulation of the corticosterone secretion cascade due to an endotoxin-induced immune response, a phenomenon that has not been reported previously. Exposure to the predator image did not affect any of the measured physiological parameters.
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Affiliation(s)
- Richard Meitern
- Department of Zoology, Institute of Ecology and Earth Sciences, Tartu University, Tartu, Estonia
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22
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Plasma reactive oxygen metabolites and non-enzymatic antioxidant capacity are not affected by an acute increase of metabolic rate in zebra finches. J Comp Physiol B 2013; 183:675-83. [PMID: 23358864 DOI: 10.1007/s00360-013-0745-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 01/08/2013] [Accepted: 01/09/2013] [Indexed: 10/27/2022]
Abstract
Understanding the sources of variation in oxidative stress level is a challenging issue due to the implications of oxidative stress for late age diseases, longevity and life-history trade-offs. Reactive oxygen species that cause oxidative stress are mostly a by-product of energy metabolism and it is therefore often assumed that oxidative stress is proportional to energy consumption. In mammals, an increased metabolic rate induced by cold exposure generally increases oxidative stress. However, compared to mammals, birds generate fewer free radicals per ATP produced and hence it is not obvious that, in birds, a cold-induced increase of metabolic rate increase oxidative stress. We tested whether cold-induced increase in metabolic rate increased oxidative stress in zebra finches by exposing individuals to cold and warm overnight temperatures. We registered metabolic rate and plasma levels of non-enzymatic antioxidants and reactive oxygen metabolites (ROMs), a measure of oxidative damage. Metabolic rate was on average 88 % higher in cold compared to warm temperature, with females being stronger affected than males. However, temperature had no effect on plasma antioxidants or our measure of oxidative damage. Middle-age birds had higher levels of plasma antioxidants than younger and older birds, but age was unrelated to ROMs. Birds showed repeatability of plasma ROMs across temperatures but not of non-enzymatic antioxidants. In contrast to similar studies in mammals, our results do not show evidence of increased oxidative stress in plasma after an acute cold-induced increase of metabolic rate but research in more bird species is needed to assess the generality of this pattern.
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Meitern R, Sild E, Kilk K, Porosk R, Hõrak P. On the methodological limitations of detecting oxidative stress: effects of paraquat on measures of oxidative status in greenfinches. J Exp Biol 2013; 216:2713-21. [DOI: 10.1242/jeb.087528] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Summary
Oxidative stress (OS) is widely believed to be responsible for generation of trade-offs in evolutionary ecology by means of constraining investment into a number of components of fitness. Yet the progress in understanding the true role of OS in ecology and evolution has remained elusive. Interpretation of current findings is particularly hampered by the scarcity of experiments demonstrating which of the many available parameters of oxidative status respond most sensitively to and are relevant for measuring OS. We addressed these questions in wild-caught captive greenfinches (Carduelis chloris) by experimental induction of OS by administration of the pro-oxidant compound paraquat with drinking water. Treatment induced 50% of mortality and a significant drop in body mass and an increase in oxidative DNA damage and glutathione levels in erythrocytes among the survivors of the high paraquat (0.2 g/L during 7 days) group. Three days after the end of the treatment, paraquat had no effect on peroxidation of lipids (plasma malondialdehyde), carbonylation of proteins (in erythrocytes), parameters of plasma antioxidant protection (TAC and OXY), uric acid or carotenoids. Our findings of an increase in one marker of damage and one marker of protection from the multitude of measured variables indicate that detection of OS is difficult even under most stringent experimental induction of oxidative insult. We hope that this study highlights the need for reconsideration of over-simplistic models of OS and draws attention to the limitations of detection of OS due to time-lagged and hormetic up-regulation of protective mechanisms. This study also underpins the diagnostic value of measurement of oxidative damage to DNA bases and assessment of erythrocyte glutathione levels.
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Costantini D, Monaghan P, Metcalfe N. Loss of integration is associated with reduced resistance to oxidative stress. J Exp Biol 2013; 216:2213-20. [DOI: 10.1242/jeb.083154] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Summary
One cellular mechanism thought to be particularly important as a constraint on lifespan and life-history strategies is oxidative stress. Susceptibility to oxidative stress is influenced by a number of antioxidant defences, whose effectiveness depends on the synergistic and competitive interactions among them (biochemical integration). It is generally assumed that exposure to oxidative stress is detrimental, but it is also possible that low level oxidative stress has a positive effect on integration, and therefore carries some benefits. Using three experimental groups of zebra finches (control, mild and high flight activity), we tested whether exercise-induced oxidative stress altered the integration of the pro-oxidant/antioxidant system by manipulating levels of flight activity, known to generate oxidative stress in birds. We show for the first time that a short-term high level of physical activity leads to a reduction in integration among components of the blood antioxidant defences, associated with a reduced resistance to oxidative stress. We found no evidence of improved integration in the antioxidant defences at low levels of oxidative stress exposure, suggesting that improved integration is not the route whereby any benefits of low level stress exposure occur. These findings point to a reduction in biochemical integration as a potential mechanism explaining a reduced resistance to oxidative stress induced by short-term stressors.
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Sepp T, Karu U, Blount JD, Sild E, Männiste M, Hõrak P. Coccidian infection causes oxidative damage in greenfinches. PLoS One 2012; 7:e36495. [PMID: 22615772 PMCID: PMC3352913 DOI: 10.1371/journal.pone.0036495] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 04/03/2012] [Indexed: 12/22/2022] Open
Abstract
The main tenet of immunoecology is that individual variation in immune responsiveness is caused by the costs of immune responses to the hosts. Oxidative damage resulting from the excessive production of reactive oxygen species during immune response is hypothesized to form one of such costs. We tested this hypothesis in experimental coccidian infection model in greenfinches Carduelis chloris. Administration of isosporan coccidians to experimental birds did not affect indices of antioxidant protection (TAC and OXY), plasma triglyceride and carotenoid levels or body mass, indicating that pathological consequences of infection were generally mild. Infected birds had on average 8% higher levels of plasma malondialdehyde (MDA, a toxic end-product of lipid peroxidation) than un-infected birds. The birds that had highest MDA levels subsequent to experimental infection experienced the highest decrease in infection intensity. This observation is consistent with the idea that oxidative stress is a causative agent in the control of coccidiosis and supports the concept of oxidative costs of immune responses and parasite resistance. The finding that oxidative damage accompanies even the mild infection with a common parasite highlights the relevance of oxidative stress biology for the immunoecological research.
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Affiliation(s)
- Tuul Sepp
- Department of Zoology, Institute of Ecology and Earth Sciences, The Centre of Excellence FIBIR, Tartu University, Tartu, Estonia.
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