Cited by 115Antioxidant Activity and Oxidative StressAlzheimer's disease research and treatmentsDementia and Cognitive Impairment Research

Markers of oxidative damage to lipids, nucleic acids and proteins and antioxidant enzymes activities in Alzheimer’s disease brain: A meta-analysis in human pathological specimens

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Zabel, Matthew, Nackenoff, Alex, Kirsch, Wolff M., Harrison, Fiona E., Perry, George, Schrag, Matthew·2018·Free Radical Biology and Medicine

Abstract

Oxidative stress and decreased cellular responsiveness to oxidative stress are thought to influence brain aging and Alzheimer's disease, but the specific patterns of oxidative damage and the underlying mechanism leading to this damage are not definitively known. The objective of this study was to define the pattern of changes in oxidative-stress related markers by brain region in human Alzheimer's disease and mild cognitive impairment brain tissue. Observational case-control studies were identified from systematic queries of PubMed, ISI Web of Science and Scopus databases and studies were evaluated with appropriate quality measures. The data was used to construct a region-by-region meta-analysis of malondialdehyde, 4-hydroxynonenal, protein carbonylation, 8-hydroxyguanine levels and superoxide dismutase, glutathione peroxidase, glutathione reductase and catalase activities. We also evaluated ascorbic acid, tocopherol, uric acid and glutathione levels. The analysis was complicated in several cases by publication bias and/or outlier data. We found that malondialdehyde levels were slightly increased in the temporal and occipital lobes and hippocampus, but this analysis was significantly impacted by publication bias. 4-hydroxynonenal levels were unchanged in every brain region. There was no change in 8-hydroxyguanine level in any brain region and protein carbonylation levels were unchanged except for a slight increase in the occipital lobe. Superoxide dismutase, glutathione peroxidase and reductase and catalase activities were not decreased in any brain region. There was limited data reporting non-enzymatic antioxidant levels in Alzheimer's disease brain, although glutathione and tocopherol levels appear to be unchanged. Minimal quantitative data is available from brain tissue from patients with mild cognitive impairment. While there is modest evidence supporting minor regional changes in markers of oxidative damage, this analysis fails to identify a consistent pattern of pro-oxidative changes and accumulation of oxidative damage in bulk tissue analysis in the setting of Alzheimer's disease, as has been widely reported.

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Crossref · 10.1016/j.freeradbiomed.2017.12.016

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  • Oxidative damage may be linked to the genetic risk of AD, and in this view more relevant in patients carrying the APOE ε4 allele.

    “Besides, oxidative damage may be linked to the genetic risk of AD, and in this view more relevant in patients carrying the APOE ε4 allele [169].”
  • Despite failure of studies on oxidative damage products in AD to reveal reliable marker, oxidative damage can be localized to mitochondria in AD brain and ROS may act as second messenger, initiating a downstream signaling pathway to face up the alteration in the redox balance.

    “Despite the failure of studies on oxidative damage products in AD to reveal, till now, one or more reliable marker, oxidative damage can be localized to mitochondria in AD brain and ROS may act as second messenger, initiating a downstream signaling pathway to face up the alteration in the redox balance [169].”

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Authors
Zabel, M., Nackenoff, A., Kirsch, W. M., Harrison, F. E., Perry, G., & Schrag, M.
Affiliations
  • California Northstate University (US)
  • Vanderbilt University (US)
  • Loma Linda University (US)
  • The University of Texas at San Antonio (US)
Corresponding author
Schrag, Matthew
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2018-02
Volume
115
Pages
351-360
ISSN
0891-5849 (ISSN-L)
OpenAlex
W2774814757
Cited by
115
References
49
Citations by year
2026: 6 · 2025: 16 · 2024: 10 · 2023: 23 · 2022: 15 · 2021: 15 · 2020: 12 · 2019: 10 · 2018: 7 · 2013: 1
FWCI
0.91
Type
journal article
Language
en
Open access
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
Vanderbilt University Medical Center's Faculty Research
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, oxidative stress, lipid peroxidation, malondialdehyde, 4-hydroxynonenal, protein carbonylation, 8-oxoguanine, antioxidant enzymes, superoxide dismutase, glutathione peroxidase, catalase, glutathione, tocopherols, uric acid, vitamin C, regional brain differences, hippocampus, temporal lobe, occipital lobe, mild cognitive impairment, brain aging
MeSH terms
Alzheimer Disease, Antioxidants, Ascorbic Acid, Brain, Glutathione, Humans, Lipids, Nucleic Acids, Prognosis, Uric Acid, Biomarkers, Case-Control Studies, Oxidative Stress, Tocopherols, Lipid Metabolism

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