Cited by 79Antioxidant Activity and Oxidative StressGenetics, Aging, and Longevity in Model OrganismsRedox biology and oxidative stress

Aging related changes in circulating reactive oxygen species (ROS) and protein carbonyls are indicative of liver oxidative injury

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Luceri, Cristina, Bigagli, Elisabetta, Femia, Angelo Pietro, Caderni, Giovanna, Giovannelli, Lisa, Lodovici, Maura·2018·Toxicology Reports

Abstract

Oxidative stress, defined as an imbalance between the production of reactive oxygen species (ROS) and antioxidant defense mechanisms, plays a major role in inducing oxidative damage and cellular impairment, resulting in a general decline of the physiological functions. The aim of this work was to evaluate age-related changes in circulating ROS levels and plasma protein carbonyls, in very young (2 months aged), young (8 months aged) and in middle age (15 months aged) F344 rats. In addition, the DNA oxidative marker 8-hydroxy-2′-deoxyguanosine (8-OHdG) and the expression of the DNA repair enzymes APE1, OGG1 and UNG genes were also measured in the liver of these animals. We also determined whether systemic oxidative stress reflects oxidative injury at organ level. Our results demonstrate that the increase in circulating ROS and protein carbonyl content occurs as early as middle age. Moreover, increased 8-OHdG in the liver of 15-month-old rats was at least in part associated with a reduced DNA damage repairing capacity as suggested by the down-regulation of APE1 gene expression. In addition, we demonstrated for the first time, that plasma carbonyls and liver 8-OHdG are well correlated, suggesting that plasma protein carbonyls may be used as a surrogate marker of oxidative injury in target organs.

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Authors
Luceri, C., Bigagli, E., Femia, A. P., Caderni, G., Giovannelli, L., & Lodovici, M.
Affiliations
University of Florence (IT)
Corresponding author
Lodovici, Maura
Venue
Toxicology Reports
Publisher
Elsevier BV
Published
2018
Volume
5
Pages
141-145
ISSN
2214-7500 (ISSN-L)
OpenAlex
W2777437165
Cited by
79
References
33
Citations by year
2026: 2 · 2025: 8 · 2024: 9 · 2023: 7 · 2022: 11 · 2021: 11 · 2020: 17 · 2019: 9 · 2018: 5
FWCI
5.73
Type
journal article
Language
en
Open access
Locations
  • Toxicology Reports (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Florence Research (University of Florence) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Florence University of the Arts
  • Ente Cassa di Risparmio di Firenze
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
aging, reactive oxygen species, protein carbonyls, oxidative stress, 8-hydroxy-2'-deoxyguanosine, DNA repair enzymes, APE1, OGG1, uracil-DNA glycosylase, oxidative damage biomarkers, F344 rats

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