Oxidative damage and antioxidant defense are assay and tissue‐dependent both in captive and wild‐caught bank voles (Myodes glareolus) before and after reproduction
| Autor: | Jan R. E. Taylor, Łukasz Ołdakowski |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Antioxidant medicine.medical_treatment media_common.quotation_subject antioxidative defense Zoology Myodes glareolus oxidative damage medicine.disease_cause 010603 evolutionary biology 01 natural sciences costs of reproduction Oxidative damage 03 medical and health sciences medicine oxidative stress bank vole Parental investment Ecology Evolution Behavior and Systematics Original Research Nature and Landscape Conservation media_common Ecology biology biology.organism_classification Bank vole 030104 developmental biology Catalase biology.protein Reproduction Oxidative stress |
| Zdroj: | Ecology and Evolution |
| ISSN: | 2045-7758 |
| DOI: | 10.1002/ece3.4187 |
| Popis: | Reproduction is costly and life‐history theory predicts that current parental investment will result in lower survival or decreased future reproduction. The physiological mechanisms mediating the link between reproduction and survival are still under debate and elevated oxidative damage during reproduction has been proposed as a plausible candidate. Previous studies of oxidative stress during reproduction in animals under natural conditions have been restricted to analyses of blood. Herein, we measured the level of oxidative damage to lipids (tiobarbituric‐acid‐reactive substances) and proteins (carbonyls) in the liver, kidneys, heart and skeletal muscles in free‐living bank vole females from spring and autumn generations, before and after reproduction. Antioxidant defense in the liver and kidneys was also determined. We expected oxidative damage to tissues and hypothesized that the damage would be more uniform between tissues in wild animals compared to those breeding under laboratory conditions. Considering all combinations of markers/tissues/generations, oxidative damage in females did not differ before and after reproduction in 12 comparisons, was lower after reproduction in three comparisons, and was higher after breeding in one comparison. The total glutathione was significantly increased after reproduction only in the liver of the autumn generation and there was no change in catalase activity. Our results confirm—for the first time in the field—previous observations from laboratory studies that there is no simple link between oxidative stress and reproduction and that patterns depend on the tissue and marker being studied. Overall, however, our study does not support the hypothesis that the cost of reproduction in bank voles is mediated by oxidative stress in these tissues. |
| Databáze: | OpenAIRE |
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