Cited by 761Genetics, Aging, and Longevity in Model OrganismsMitochondrial Function and PathologyPhysiological and biochemical adaptations

Uncoupled and surviving: individual mice with high metabolism have greater mitochondrial uncoupling and live longer

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Speakman, John R., Talbot, Darren A., Selman, Colin, Snart, Sam, McLaren, Jane S., Redman, Paula, Krol, Ela, Jackson, Diane M. +2 more·2004·Aging Cell

Abstract

Summary: Two theories of how energy metabolism should be associated with longevity, both mediated via free‐radical production, make completely contrary predictions. The ‘rate of living‐free‐radical theory’ (Pearl, 1928;Harman, 1956;Sohal, 2002) suggests a negative association, the ‘uncoupling to survive’ hypothesis (Brand, 2000) suggests the correlation should be positive. Existing empirical data on this issue is contradictory and extremely confused (Rubner, 1908;Yan & Sohal, 2000;Ragland & Sohal, 1975;Daan et al., 1996;Wolf & Schmid‐Hempel, 1989]. We sought associations between longevity and individual variations in energy metabolism in a cohort of outbred mice. We found a positive association between metabolic intensity (kJ daily food assimilation expressed as g/body mass) and lifespan, but no relationships of lifespan to body mass, fat mass or lean body mass. Mice in the upper quartile of metabolic intensities had greater resting oxygen consumption by 17% and lived 36% longer than mice in the lowest intensity quartile. Mitochondria isolated from the skeletal muscle of mice in the upper quartile had higher proton conductance than mitochondria from mice from the lowest quartile. The higher conductance was caused by higher levels of endogenous activators of proton leak through the adenine nucleotide translocase and uncoupling protein‐3. Individuals with high metabolism were therefore more uncoupled, had greater resting and total daily energy expenditures and survived longest – supporting the ‘uncoupling to survive’ hypothesis.

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  1. Nicholls DG, Ferguson SJ (2002) Bioenergetics 3. Academic Press, London, UK.
  2. Packard, GC. & Boardman, TJ (1988) The misuse of ratios to scale physiological data that vary allometrically with body size. Chpr 10, pp. 216 -239. In: New Directions in Ecological Physiology (eds Feder, ME Bennett, AF, Burggren, WW, Huey, RB.). Cambridge University Press, Cambridge, UK.
  3. Yan LJ, Sohal RS (2000) Prevention of flight activity prolongs the lifespan of the housefly, Musca domestica. Free Rad Biol. Med. 29, 1143 - 1154. 14749726, 2004, 3, Downloaded from https://onlinelibrary.wiley.com/doi/10.1111/j.1474-9728.2004.00097.x by Readcube (Labtiva Inc.), Wiley Online Library on [11/07/2023]. See the Terms and Conditions (https://onlinelibrary.wiley.com/terms-and-conditions) on Wiley Online Library for rules of use; OA articles are governed by the applicable Creative Commons License · DOI

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Authors
Speakman, J. R., Talbot, D. A., Selman, C., Snart, S., McLaren, J. S., Redman, P., Krol, E., Jackson, D. M., Johnson, M. S., & Brand, M. D.
Affiliations
  • University of Aberdeen (GB)
  • MRC Mitochondrial Biology Unit (GB)
Corresponding author
Speakman, John R.
Venue
Aging Cell
Publisher
Wiley
Published
2004-05-06
Volume
3
Issue
3
Pages
87-95
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2105537673
Cited by
761
References
81
Citations by year
2026: 8 · 2025: 9 · 2024: 14 · 2023: 16 · 2022: 13 · 2021: 21 · 2020: 23 · 2019: 33 · 2018: 32 · 2017: 32 · 2016: 36 · 2015: 44 · 2014: 37 · 2013: 43 · 2012: 34
FWCI
13.26
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion)
  • PubMed (publishedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
Funders
  • Medical Research Council
  • Biotechnology and Biological Sciences Research Council
  • Natural Environment Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Physical Sciences › Environmental Science › Ecology › Physiological and biochemical adaptations
Keywords
mitochondrial uncoupling, rate of living theory, longevity, energy metabolism, metabolic intensity, resting oxygen consumption, proton leak, adenine nucleotide translocase, UCP3, skeletal muscle mitochondria, interindividual variability, free radicals, lifespan, outbred mice
MeSH terms
Animals, Body Weight, Energy Metabolism, Female, Kinetics, Longevity, Membrane Potentials, Mitochondria, Mice

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