Cited by 161Genetics, Aging, and Longevity in Model OrganismsMitochondrial Function and PathologyRedox biology and oxidative stress

Mitochondrial Oxidative Stress: Physiologic Consequences and Potential for a Role in Aging

MELOV, SIMON·2000·Annals of the New York Academy of Sciences

Abstract

During the last 10 years, the theory known as the "free radical theory of aging" has achieved prominence as one of the most compelling explanations for many of the degenerative changes associated with aging. Although its appeal derives from a long-standing body of supporting correlative data, the theory was only recently more rigorously tested. Ongoing researches in the study of free radical biochemistry and the genetics of aging have been at the forefront of this work. First, transgenic approaches in invertebrate models with candidate genes such as superoxide dismutase (SOD) involved in the detoxification of reactive oxygen species (ROS) have shown that the endogenous production of ROS due to normal physiologic processes is a major limiter of life span. Genes involved in ROS detoxification are highly conserved among eukaryotes; hence, the physiologic processes that limit life span in invertebrates are likely to be similar in higher eukaryotes. Secondly, transgenic mice deficient in the antioxidant enzyme mitochondrial superoxide dismutase (SOD2) die within their first week of life, demonstrating the importance of limiting endogenous mitochondrial free radicals in mammals. Together, data from studies using transgenic invertebrates and those using sod2 mutant mice demonstrate that modulation of metabolic ROS can have a profound effect on life span. We show here that the effects of mitochondrial ROS can be modulated through appropriate catalytic antioxidant intervention. These catalytic antioxidants are discussed in the context of mitochondrial oxidative stress and their potential role in intervening in mitochondrial oxidative stress and aging.

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Crossref · 10.1111/j.1749-6632.2000.tb06649.x

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  • Mitochondria are essential regulators of cellular bioenergetics that respond to changes in environmental stimuli such as hormones, nutrients, and oxygen tension.

    “Mitochondria are essential regulators of cellular bioenergetics that respond to changes in environmental stimuli, such as hormones, nutrients, and oxygen tension (47, 94, 99, 109, 290, 301, 385).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [290]

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Authors
MELOV, S.
Affiliations
Buck Institute for Research on Aging (US)
Corresponding author
MELOV, SIMON
Venue
Annals of the New York Academy of Sciences
Publisher
Wiley
Published
2000-06
Volume
908
Issue
1
Pages
219-225
ISSN
  • 0077-8923 (ISSN-L)
  • 1749-6632
OpenAlex
W1994481733
Cited by
161
References
53
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 1 · 2017: 4 · 2016: 5 · 2015: 9 · 2014: 6 · 2013: 5 · 2012: 8
FWCI
0.56
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of the New York Academy of Sciences (publishedVersion)
  • PubMed (publishedVersion)
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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
mitochondrial oxidative stress, free radical theory of aging, reactive oxygen species, mitochondrial superoxide dismutase, manganese superoxide dismutase, catalytic antioxidants, lifespan, degenerative changes
MeSH terms
Aging, Animals, Antioxidants, Catalysis, Life Expectancy, Mice, Mutant Strains, Mitochondria, Superoxide Dismutase, Oxidative Stress, Mice

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