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Cited by 392Redox biology and oxidative stressAntioxidant Activity and Oxidative StressSulfur Compounds in Biology

The DOI matches its Crossref record; 39 of the 41 references it cites were found in a registry or an index.

Redox analysis of human plasma allows separation of pro-oxidant events of aging from decline in antioxidant defenses

Jones, Dean P, Mody, Vino C, Carlson, Joanne L, Lynn, Michael J, Sternberg, Paul·2002·Free Radical Biology and Medicine
DOI 10.1016/s0891-5849(02)01040-7
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Abstract

Oxidative stress is a component of diseases and degenerative processes associated with aging. However, no means are available to assess causative oxidative events separately from decline in function of protective antioxidant systems. Previous studies show that ongoing oxidative processes maintain plasma cysteine/cystine redox at a value that is more oxidized than the antioxidant glutathione/glutathione disulfide (GSH/GSSG) system, suggesting that redox analysis of these plasma thiols could allow separate evaluation of an increase in oxidative events from a decline in antioxidant function. The present study uses measurement of cysteine/cystine and GSH/GSSG redox in plasma of 122 healthy individuals aged 19-85 years to determine whether thiol-disulfide redox changes occur with age. The results show a linear oxidation of cysteine/cystine redox state with age at a rate of 0.16 mV/year over the entire age span. In contrast, GSH/GSSG redox was not oxidized prior to 45 years and subsequently was oxidized at a nearly linear rate of 0.7 mV/year. These data suggest that there is a continuous, linear increase in oxidative events throughout adult life but that the capacity of the GSH antioxidant system is maintained until 45 years and then declines rapidly. The data further suggest that redox states of cysteine/cystine and GSH/GSSG provide an approach to clinically distinguish between increased causative oxidative events and decreased GSH antioxidant function. In principle, such analyses can be used to assess efficacy of intervention strategies against oxidative stress prior to or early after onset of clinical symptoms in aging and age-related disease.

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Research works printed but not linked: 2

  1. Solberg, 1986, Statistical treatment of reference values in laboratory medicine, Scand. J. Clin. Lab. Invest. Suppl., 184, 125
  2. Chevion, 2000, Human studies related to protein oxidation, Free Radic. Res., 33, S99

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Metadata

Authors
Jones, D. P., Mody, V. C., Carlson, J. L., Lynn, M. J., & Sternberg, P.
Affiliations
Emory University (US)
Corresponding author
Jones, Dean P
ORCID
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2002-11
Volume
33
Issue
9
Pages
1290-1300
ISSN
0891-5849 (ISSN-L)
DOI
10.1016/s0891-5849(02)01040-7
OpenAlex
W2067305246
Cited by
392
References
41
Citations by year
2026: 6 · 2025: 9 · 2024: 9 · 2023: 7 · 2022: 18 · 2021: 12 · 2020: 17 · 2019: 21 · 2018: 18 · 2017: 17 · 2016: 20 · 2015: 23 · 2014: 23 · 2013: 14 · 2012: 25
FWCI
3.59
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Eye Institute (EY07892, EY0 6360, P30EY006360)
  • National Institute of Environmental Health Sciences (ES09047, R01ES009047)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Biochemistry (medical) › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Sulfur Compounds in Biology
Keywords
oxidative stress, aging, antioxidant defense, age-related diseases
MeSH terms
Adolescent, Adult, Aged, Aged, 80 and over, Aging, Cysteine, Disulfides, Female, Glutathione, Humans, Kinetics, Male, Middle Aged, Models, Chemical, Oxidation-Reduction, Reference Values, Sulfhydryl Compounds, Age Distribution, Sex Distribution, Oxidative Stress, Glutathione Disulfide

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