Is depression associated with increased oxidative stress? A systematic review and meta-analysis
It has been suggested that depressed persons have increased oxidative stress and decreased anti-oxidant defences. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) and F2-isoprostanes, measures of oxidative DNA and lipid damage respectively, are among the most reliable oxidative stress markers, but studies on their association with depression show conflicting results. This meta-analysis quantifies the association between depression and these markers and explores factors that may explain inconsistencies in the results. A systematic literature search was conducted in PubMed, EMBASE and PsycINFO. Studies assessing the association of 8-OHdG or F2-isoprostanes with elevated depressive symptoms, major depressive disorder (MDD) or bipolar disorder (BD) were pooled in two random-effect models. The pooled effect size (Hedges' g) for the association of depression with oxidative stress was 0.31 (p=0.01, I(2)=75%) for 8-OHdG (10 studies, 1308 subjects) and 0.48 (p=0.001, I(2)=73%) for F2-isoprostanes (8 studies, 2471 subjects), indicating that both markers are increased in depression. There was no indication of publication bias for either marker. The F2-isoprostane results did not differ by type of depression, biological specimen, laboratory method or quality, however subgroup analyses in the 8-OHdG studies showed significantly stronger associations in plasma/serum vs. urine samples (p<0.01), in measurements performed with immuno-assay vs. chromatography-mass spectrometry (p<0.01) and weaker associations in high quality studies vs. low (p=0.02). This meta-analysis finds that oxidative stress, as measured by 8-OHdG and F2-isoprostanes, is increased in depression. Larger-scale studies are needed to extend the evidence on oxidative stress in depression, and examine the potential impact of treatment..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:51 |
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| Enthalten in: |
Psychoneuroendocrinology - 51(2015), Seite 164-175 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Black, Catherine N [VerfasserIn] |
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| Links: |
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| doi: |
10.1016/j.psyneuen.2014.09.025 |
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| Förderinstitution / Projekttitel: |
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| 520 | |a It has been suggested that depressed persons have increased oxidative stress and decreased anti-oxidant defences. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) and F2-isoprostanes, measures of oxidative DNA and lipid damage respectively, are among the most reliable oxidative stress markers, but studies on their association with depression show conflicting results. This meta-analysis quantifies the association between depression and these markers and explores factors that may explain inconsistencies in the results. A systematic literature search was conducted in PubMed, EMBASE and PsycINFO. Studies assessing the association of 8-OHdG or F2-isoprostanes with elevated depressive symptoms, major depressive disorder (MDD) or bipolar disorder (BD) were pooled in two random-effect models. The pooled effect size (Hedges' g) for the association of depression with oxidative stress was 0.31 (p=0.01, I(2)=75%) for 8-OHdG (10 studies, 1308 subjects) and 0.48 (p=0.001, I(2)=73%) for F2-isoprostanes (8 studies, 2471 subjects), indicating that both markers are increased in depression. There was no indication of publication bias for either marker. The F2-isoprostane results did not differ by type of depression, biological specimen, laboratory method or quality, however subgroup analyses in the 8-OHdG studies showed significantly stronger associations in plasma/serum vs. urine samples (p<0.01), in measurements performed with immuno-assay vs. chromatography-mass spectrometry (p<0.01) and weaker associations in high quality studies vs. low (p=0.02). This meta-analysis finds that oxidative stress, as measured by 8-OHdG and F2-isoprostanes, is increased in depression. Larger-scale studies are needed to extend the evidence on oxidative stress in depression, and examine the potential impact of treatment. | ||
| 540 | |a Nutzungsrecht: Copyright © 2014 Elsevier Ltd. All rights reserved. | ||
| 650 | 4 | |a Bipolar Disorder - metabolism | |
| 650 | 4 | |a Oxidative Stress - physiology | |
| 650 | 4 | |a F2-Isoprostanes - metabolism | |
| 650 | 4 | |a Deoxyguanosine - metabolism | |
| 650 | 4 | |a Depressive Disorder, Major - metabolism | |
| 650 | 4 | |a Deoxyguanosine - analogs & derivatives | |
| 650 | 4 | |a Biological Markers - metabolism | |
| 650 | 4 | |a Depression - metabolism | |
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