ArticleJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2012
High levels of liver antioxidants are associated with life-history strategies characteristic of slow growth and high survival rates in birds.
Article in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Correlated evolution of oxidative physiology and MHC-based immunosurveillance in birds.Proceedings. Biological sciences · 2024Article
- Article
- Antioxidant systems in chick embryo development. Part 1. Vitamin E, carotenoids and selenium.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2016Review
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
Antioxidants have a large potential to coevolve with life-histories because of their capacity to counteract the negative effects of free radicals on fitness. However, only a few studies have explored the association between antioxidant levels and life-history strategies comparing a large number of species. Here we used an extensive dataset of 125 species of birds to investigate the association between concentrations of antioxidants (carotenoids and vitamin E) in the liver, which is the main storage organ for fat-soluble antioxidants, and life-history and morphology. We found that high liver antioxidant concentrations were associated with life-history strategies characterized by "live slow, die old", in clear contrast to previous studies reporting a relationship between high plasma antioxidants and life-histories characterized by "live fast, die young". Thus, high carotenoid concentrations were present in species with large body, brain and egg sizes, high absolute metabolic rate and a resident lifestyle, while high vitamin E concentrations were present in species with large brain size and long life span and incubation period. Our results indicate that antioxidants and life-histories coevolve, and that this may be mediated by positive fitness consequences of the accumulation of liver antioxidants, as species with higher antioxidant levels live longer.
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Registered trials
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