Cited by 40Treatment of Major DepressionTryptophan and brain disordersStress Responses and Cortisol

Sex differences in the association of baseline c-reactive protein (CRP) and acute-phase treatment outcomes in major depressive disorder: Findings from the EMBARC study

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Jha, Manish K., Minhajuddin, Abu, Chin-Fatt, Cherise, Greer, Tracy L., Carmody, Thomas J., Trivedi, Madhukar H.·2019·Journal of Psychiatric Research

Abstract

Peripheral inflammation is associated with poor response to antidepressant treatments. However, whether sex differentially affects this association remains unknown. Participants of Establishing Moderators and Biosignatures of Antidepressant Response for Clinical Care (EMBARC) with baseline plasma samples were included in this study (n = 220; male n = 75, female n = 145). Depression severity [Hamilton Rating Scale for Depression 17-item (HAMD-17)] was measured at baseline and weeks- 1, 2, 3, 4, 6, and 8. Plasma c-reactive protein (CRP) was measured with commercially-available ELISA kits at baseline, week-1, and week-8. Sex difference in prediction of baseline-to-week-8 HAMD-17 change by baseline CRP was tested with sex-by-baseline-CRP-by-time interaction in mixed model analysis. Additionally, changes in CRP from baseline-to-week-8 CRP and its association with HAMD-17 changes over that period were also evaluated. Covariates included body mass index, site, smoking status, and age. There was a significant sex difference in association of baseline-to-week-8 HAMD-17 reduction with baseline CRP (p = 0.033). Higher baseline CRP was associated with lower baseline-to-week-8 HAMD-17 reduction in females (p < 0.0001) but not in males (p = 0.632). Additionally, CRP was significantly reduced (p = 0.041, effect size = 0.254) from baseline-to-week-8, but there were no sex differences in this reduction (p = 0.249). Baseline-to-week-8 changes in HAMD-17 and CRP were not significantly associated either overall (p = 0.348) or based on sex (p = 0.370). In a large study of depressed outpatients, we replicated previous findings that elevated baseline CRP levels are associated with worse antidepressant treatment outcomes. However, this effect was limited only to females. These findings emphasize the importance of studying sex differences in biological mechanisms linking inflammation and depression.

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  • In an RCT, elevated baseline CRP levels were associated with the worst antidepressant treatment outcome only in female samples.

    “A recent RCT evaluated the sex differences in the association between CRP levels and the response to antidepressant treatments [97]. Participants were assessed with HAMD-17 at baseline and at weeks 1, 2, 3, 4, 6, and 8 after the treatment. Elevated baseline CRP levels were associated with the worst antidepressant treatment outcome only in female samples [97].”

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Authors
Jha, M. K., Minhajuddin, A., Chin-Fatt, C., Greer, T. L., Carmody, T. J., & Trivedi, M. H.
Affiliations
The University of Texas Southwestern Medical Center (US)
Corresponding author
Trivedi, Madhukar H.
Venue
Journal of Psychiatric Research
Publisher
Elsevier BV
Published
2019-06
Volume
113
Pages
165-171
ISSN
0022-3956 (ISSN-L)
OpenAlex
W2922705509
Cited by
40
References
40
Citations by year
2026: 2 · 2025: 5 · 2024: 2 · 2023: 9 · 2022: 9 · 2021: 8 · 2020: 3 · 2019: 2
FWCI
3.41
Type
journal article
Language
en
Open access
Locations
  • Journal of Psychiatric Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Hersh Foundation
  • National Institute of Mental Health
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
sex differences, C-reactive protein, major depressive disorder, antidepressant response, peripheral inflammation, acute phase response, depression severity, plasma biomarkers, outpatients
MeSH terms
Acute Disease, Adult, Antidepressive Agents, C-Reactive Protein, Major Depressive Disorder, Double-Blind Method, Female, Follow-Up Studies, Humans, Inflammation, Male, Psychiatric Status Rating Scales, Sex Factors, Treatment Outcome

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