ArticleAging cell2023
Mitochondrial function declines with age within individuals but is not linked to the pattern of growth or mortality risk in zebra finch.
Article in Aging cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 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
5 citing papers in PubMed, 10 citations in OpenAlex.
- Mitonuclear discordance modulates mitochondrial ageing dynamics in naturalProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Blood mitochondrial metabolism predicts flight performance without lasting effects of early-life thyroid hormones.iScience · 2026Article
- The relationship between mitochondrial respiration, resting metabolic rate and blood cell count in great tits.Biology open · 2024Article
- Non-lethal sampling for assessment of mitochondrial function does not affect metabolic rate and swimming performance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Article
- Mitochondrial function declines with age within individuals but is not linked to the pattern of growth or mortality risk in zebra finch.Aging cell · 2023Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mitochondrial dysfunction is considered a highly conserved hallmark of ageing. However, most of the studies in both model and non-model organisms are cross-sectional in design; therefore, little is known, at the individual level, on how mitochondrial function changes with age, its link to early developmental conditions or its relationship with survival. Here we manipulated the postnatal growth in zebra finches (Taeniopygia guttata) via dietary modification that induced accelerated growth without changing adult body size. In the same individuals, we examined blood cells mitochondrial functioning (mainly erythrocytes) when they were young (ca. 36 weeks) and again in mid-aged (ca. 91 weeks) adulthood. Mitochondrial function was strongly influenced by age but not by postnatal growth conditions. Across all groups, within individual ROUTINE respiration, OXPHOS and OXPHOS coupling efficiency significantly declined with age, while LEAK respiration increased. However, we found no link between mitochondrial function and the probability of survival into relatively old age (ca. 4 years). Our results suggest that the association between accelerated growth and reduced longevity, evident in this as in other species, is not attributable to age-related changes in any of the measured mitochondrial function traits.
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Registered trials
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