Cited by 36Obsessive-Compulsive Spectrum DisordersGlutathione Transferases and PolymorphismsMitochondrial Function and Pathology

Genetic variants in nuclear-encoded mitochondrial proteins are associated with oxidative stress in obsessive compulsive disorders

Orhan, Nurcan, Kucukali, Cem Ismail, Cakir, Ulku, Seker, Nildan, Aydin, Makbule·2012·Journal of Psychiatric Research

Abstract

Obsessive compulsive disorder is a common psychiatric disorder defined by the presence of obsessive thoughts and repetitive compulsive actions. The mutations or polymorphic variants in mitochondrial DNA-encoded genes or nuclear genes result in oxidative stress, which has recently been associated with various psychiatric disorders. In order to understand the association of mitochondrial disorders with oxidative stress in obsessive compulsive disorder, we examined genetic variants of manganese superoxide dismutase and uncouple-2 antioxidant genes and malondialdehyde and glutathione, markers of oxidative stress. The study sample comprised 104 patients with OCD and 110 healthy controls. For manganese superoxide dismutase, the frequencies of CT (Ala/Val) genotype (p < 0.01) in patients were significantly lower than those of controls. In contrast, CC (Ala/Ala) genotype was significantly more frequent in patients than controls (p < 0.05). For uncouple-2 I/D, the frequencies of ID genotype (p < 0.01) and I allele (p < 0.05) were lower in patients as compared with controls. In contrast, DD genotype was more prevalent in patients than controls (p < 0.01). While whole blood glutathione was significantly diminished (p < 0.0001), serum malondialdehyde was significantly elevated in patients compared with controls (p < 0.0001). Malondialdehyde levels were significantly elevated in subjects with DD genotype of UCP-2 I/D (p < 0.05) and CC genotype of manganese superoxide dismutase (p < 0.05) as compared with II or ID and TT or CT genotype, respectively. Malondialdehyde levels in patients carrying CC (p < 0.05) or CT (p < 0.05) genotype were significantly higher than those of carrying TT genotype. In conclusion, CC genotype of manganese superoxide dismutase or DD genotype of UCP-2 might result in mitochondrial disorders by increasing oxidative stress in obsessive compulsive disorders.

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Crossref · 10.1016/j.jpsychires.2011.09.012

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Authors
Orhan, N., Kucukali, C. I., Cakir, U., Seker, N., & Aydin, M.
Affiliations
  • Istanbul University (TR)
  • Başkent University (TR)
Venue
Journal of Psychiatric Research
Publisher
Elsevier BV
Published
2012-02
Volume
46
Issue
2
Pages
212-218
ISSN
0022-3956 (ISSN-L)
OpenAlex
W1983472283
Cited by
36
References
65
Citations by year
2026: 1 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 6 · 2020: 3 · 2019: 3 · 2017: 1 · 2016: 2 · 2015: 2 · 2014: 5 · 2013: 2 · 2012: 1
FWCI
2.75
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Psychiatric Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Yale University
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glutathione Transferases and Polymorphisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
obsessive-compulsive disorder, oxidative stress, mitochondrial DNA-encoded proteins, manganese superoxide dismutase, UCP2, genetic polymorphism, malondialdehyde, glutathione, mitochondrial disease
MeSH terms
Uncoupling Protein 2, Adult, Female, Genotype, Glutathione, Humans, Ion Channels, Male, Malondialdehyde, Middle Aged, Obsessive-Compulsive Disorder, Retrospective Studies, Superoxide Dismutase, Lipid Peroxidation, Linkage Disequilibrium, Logistic Models, Odds Ratio, Oxidative Stress, Polymorphism, Single Nucleotide, Mitochondrial Proteins

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