Cited by 526Bipolar Disorder and TreatmentAntioxidant Activity and Oxidative StressSchizophrenia research and treatment

Oxidative stress markers in bipolar disorder: A meta-analysis

Andreazza, Ana C., Kauer-Sant'Anna, Marcia, Frey, Benicio N., Bond, David J., Kapczinski, Flavio, Young, L. Trevor, Yatham, Lakshmi N.·2008·Journal of Affective Disorders

Abstract

Background Oxidative stress is thought to mediate neuropathological processes of a number of neuropsychiatric disorders and recent data suggest that oxidative stress may be involved in the pathophysiology of bipolar disorder (BD). In the present investigation, we conducted a meta-analysis of studies that evaluated markers of oxidative stress in individuals with BD, as compared to healthy controls.Methods A Medline search was conducted to identify studies that measured peripheral markers of oxidative stress in bipolar disorder. Data were subjected to meta-analysis using a random effects model to examine the effect sizes of the pooled results. Bias assessment (Egger's test) and assessment of heterogeneity (I(2)) were also carried out.Results Thiobarbituric acidic reactive substances (TBARS) (p = 0.001) as well as NO activity (p = 0.02) were significantly increased in BD with a large effect size for TBARS and a moderate effect size for increase in NO. No significant effect sizes were observed for the antioxidant enzymes superoxide dismutase, catalase and glutathione peroxidase (all p>0.05).Limitations Some caution is warranted in interpreting these results: (1) Egger's test was positive for SOD, suggesting that SOD results may have been influenced by a publication bias. (2) We analyzed the absolute values of each antioxidant enzyme separately and the literature suggests that an imbalance between the antioxidant enzymes is a better indication of the presence of oxidative stress.Conclusions The present meta-analysis suggests that oxidative stress markers are increased in BD and that oxidative stress may play a role in the pathophysiology of BD.

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Crossref · 10.1016/j.jad.2008.04.013

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Authors
Andreazza, A. C., Kauer-Sant'Anna, M., Frey, B. N., Bond, D. J., Kapczinski, F., Young, L. T., & Yatham, L. N.
Affiliations
  • Universidade Federal do Rio Grande do Sul (BR)
  • Montreal Neurological Institute and Hospital (CA)
  • University of British Columbia (CA)
Corresponding author
Yatham, Lakshmi N.
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2008-12
Volume
111
Issue
2-3
Pages
135-144
ISSN
0165-0327 (ISSN-L)
OpenAlex
W2131671310
Cited by
526
References
4
Citations by year
2026: 18 · 2025: 16 · 2024: 17 · 2023: 16 · 2022: 27 · 2021: 26 · 2020: 45 · 2019: 26 · 2018: 25 · 2017: 37 · 2016: 39 · 2015: 36 · 2014: 48 · 2013: 49 · 2012: 30
FWCI
3.03
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Affective Disorders (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Health Canada
  • Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
oxidative stress, bipolar disorder, lipid peroxidation, TBARS, nitric oxide, antioxidant enzymes, superoxide dismutase, catalase, glutathione peroxidase, pathophysiology
MeSH terms
Antioxidants, Bipolar Disorder, Erythrocytes, Glutathione Peroxidase, Humans, Nitric Oxide, Superoxide Dismutase, Lipid Peroxidation, Biomarkers, Thiobarbituric Acid Reactive Substances, Oxidative Stress, Control Groups, Protein Carbonylation

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