Cited by 368Antioxidant Activity and Oxidative StressTreatment of Major DepressionTryptophan and brain disorders

Antioxidant enzyme activities and oxidative stress in affective disorders

Erkan Ozcan, M., Gulec, Mukaddes, Ozerol, Elif, Polat, Ruhcan, Akyol, Omer·2004·International Clinical Psychopharmacology

Abstract

Recent data from several reports indicate that free radicals are involved in the biochemical mechanisms underlying neuropsychiatric disorders in human. The results of several reports suggest that lower antioxidant defences against lipid peroxidation exist in patients with depression and that there is a therapeutic benefit from antioxidant supplementation in unstable manic-depressive patients. We investigated the antioxidant enzyme status and the indices of oxidative stress and lipid peroxidation end products in erythrocytes from patients with affective disorder. For this purpose, we measured superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) activities, as well as malondialdehyde (MDA) and nitric oxide (NO) levels in patients with affective disorders (n=30) in both pre- and post-treatment periods, and in a control group (n=21). CAT activities were significantly decreased in both pre-, and post-treatment periods in patients compared to the control group. GSH-Px activity in the pre-treatment period in the patients was significantly lower than both post-treatment patient and control groups. MDA levels were increased in both pre-, and post-treatment patient groups compared to the control group. NO level was lower in the pre-treatment patient group than in the control group. There were statistically significant correlations between SOD and MDA, and SOD and NO in the pre-treatment patient and control groups. Because the overall study sample was small, and the post-treatment patient group was even smaller, it can tentatively be suggested that the antioxidant system is impaired during a mood episode in patients with affective disorders, normalizing at the end of the episode.

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Crossref · 10.1097/00004850-200403000-00006

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Authors
Erkan Ozcan, M., Gulec, M., Ozerol, E., Polat, R., & Akyol, O.
Venue
International Clinical Psychopharmacology
Published
2004-03
Volume
19
Issue
2
Pages
89-95
ISSN
0268-1315 (ISSN-L)
OpenAlex
W2047048235
Cited by
368
References
28
Citations by year
2026: 6 · 2025: 6 · 2024: 8 · 2023: 8 · 2022: 10 · 2021: 17 · 2020: 19 · 2019: 17 · 2018: 22 · 2017: 12 · 2016: 24 · 2015: 18 · 2014: 35 · 2013: 30 · 2012: 28
FWCI
6.49
Type
journal article
Language
en
Open access
closed
Locations
  • International Clinical Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
mood disorders, depression, bipolar disorder, oxidative stress, antioxidant enzymes, lipid peroxidation, superoxide dismutase, glutathione peroxidase, catalase, malondialdehyde, nitric oxide, erythrocytes, free radicals
MeSH terms
Adolescent, Adult, Affective Disorders, Psychotic, Aged, Antioxidants, Catalase, Erythrocytes, Female, Glutathione Peroxidase, Humans, Male, Malondialdehyde, Middle Aged, Nitric Oxide, Superoxide Dismutase, Lipid Peroxidation, Oxidative Stress

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