Cited by 473Tryptophan and brain disordersTreatment of Major DepressionStress Responses and Cortisol

Oxidative stress, inflammation and treatment response in major depression

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Lindqvist, Daniel, Dhabhar, Firdaus S., James, S. Jill, Hough, Christina M., Jain, Felipe A., Bersani, F. Saverio, Reus, Victor I., Verhoeven, Josine E. +5 more·2017·Psychoneuroendocrinology

Abstract

Objective Increased inflammation and oxidative stress have been shown in Major Depressive Disorder (MDD), although there is significant heterogeneity across studies. Whether markers of inflammation and oxidative stress are associated with antidepressant treatment response in MDD is currently unclear. The goals of the present study are to investigate markers of inflammation and oxidative stress in unmedicated MDD subjects and controls and test the relationship between these markers and antidepressant response in MDD subjects.Methods Interleukin (IL)-6, tumor necrosis factor (TNF)-α, C-reactive protein, F2-isoprostanes, 8-OH 2-deoxyguanosine (8-OHdG), glutathione peroxidase, glutathione, and vitamin C were quantified in blood samples from 50 unmedicated MDD subjects and 55 healthy controls. Depression symptom severity was rated with the 17-item Hamilton Depression Rating Scale (HDRS). All subjects were somatically healthy and free from medications that could interfere with inflammation and oxidative stress markers. A subgroup of 22 MDD subjects underwent open-label selective serotonin reuptake inhibitor (SSRI) antidepressant treatment for eight weeks, after which blood sampling and the HDRS were repeated. Antidepressant treatment "response" was defined as ≥50% decrease in HDRS ratings over 8 weeks of treatment.Results After controlling for the effects of age, sex, body mass index and smoking, MDD subjects had significantly higher levels of IL-6 (p<0.001), TNF-α (p<0.001), 8-OHdG (p=0.018), and F2-isoprostanes (p=0.012). Compared to Responders, Non-responders to SSRI antidepressant treatment had higher levels of F2-isoprostanes at baseline (p=0.006), and after eight weeks of treatment (p=0.031). Non-responders showed a significant increase in 8-OHdG over the course of treatment (p=0.021), whereas Responders showed a significant decrease in IL-6 over the course of treatment (p=0.019).Conclusion Our results are in line with previous reports of increased levels of markers of inflammation and oxidative stress in MDD. Moreover, poorer antidepressant treatment response was related to higher baseline levels of the major oxidative stress marker, F2-isoprostanes, in vivo. Further, antidepressant response was associated with changes in oxidative (8-OHdG) and inflammatory (IL-6) markers.

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Crossref · 10.1016/j.psyneuen.2016.11.031

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Authors
Lindqvist, D., Dhabhar, F. S., James, S. J., Hough, C. M., Jain, F. A., Bersani, F. S., Reus, V. I., Verhoeven, J. E., Epel, E. S., Mahan, L., Rosser, R., Wolkowitz, O. M., & Mellon, S. H.
Affiliations
  • University of California, San Francisco (US)
  • University of Miami (US)
  • Arkansas Children's Research Institute (US)
Corresponding author
Lindqvist, Daniel
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
2017-02
Volume
76
Pages
197-205
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2557893886
Cited by
473
References
58
Citations by year
2026: 27 · 2025: 50 · 2024: 51 · 2023: 60 · 2022: 78 · 2021: 65 · 2020: 58 · 2019: 36 · 2018: 31 · 2017: 17
FWCI
9.56
Type
journal article
Language
en
Open access
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • National Institute of Mental Health (R01-MH083784)
  • O'Shaughnessy Foundation
  • Tinberg family, and grants from the UCSF Academic Senate
  • UCSF Research Evaluation and Allocation Committee
  • National Institutes of Health/National Center for Research Resources
  • National Center for Advancing Translational Sciences (UL1 RR024131)
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
major depressive disorder, oxidative stress, inflammation, antidepressant response, F2-isoprostanes, 8-hydroxy-2'-deoxyguanosine, interleukin-6, TNF-α, C-reactive protein, glutathione, selective serotonin reuptake inhibitors, biomarkers, untreated depression, oxidative DNA damage, lipid peroxidation
MeSH terms
Adult, Major Depressive Disorder, Female, Follow-Up Studies, Humans, Inflammation, Male, Middle Aged, Outcome Assessment, Health Care, Selective Serotonin Reuptake Inhibitors, Oxidative Stress

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