Cited by 995Stress Responses and CortisolTryptophan and brain disordersCancer, Stress, Anesthesia, and Immune Response

The Relationship of Depression and Stressors to Immunological Assays: A Meta-Analytic Review

Zorrilla, Eric P., Luborsky, Lester, McKay, James R., Rosenthal, Robert, Houldin, Arlene, Tax, Anne, McCorkle, Ruth, Seligman, David A. +1 more·2001·Brain, Behavior, and Immunity

Abstract

This is a broad meta-analysis of the relations of both depression and stressors to immunological assays. The number of study samples (greater than 180) and measures (greater than 40) is much more extensive than any so far. Analyses are done by both fixed and random effects. By a fixed-effects analysis, both major depression and naturally occurring acute stressors are associated with (1) an overall leukocytosis, (2) mild reductions in absolute NK-cell counts and relative T-cell proportions, (3) marginal increases in CD4/CD8 ratios, and (4) moderate decreases in T- and NK-cell function. However, the degree of heterogeneity of the studies' results raises questions about their robustness. Therefore, we also did the first random effects analysis to estimate what is likely to appear in future studies. For depression, the analysis showed the immunological correlates included (1) an overall leukocytosis, manifesting as a relative neutrophilia and lymphoenia; (2) increased CD4/CD8 ratios; (3) increased circulating haptoglobin, PGE(2), and IL-6 levels; (4) reduced NK-cell cytotoxicity; and (5) reduced lymphocyte proliferative response to mitogen. For stressors, the random effects analysis showed that future studies are likely to find the following effects: (1) an overall leukocytosis, manifesting as an absolute lymphocytosis; (2) alterations in cytotoxic lymphocyte levels, CD4/CD8 ratios, and natural killer cell cytotoxicity with the direction of change depending on the chronicity of t…

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Crossref · 10.1006/brbi.2000.0597

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Authors
Zorrilla, E. P., Luborsky, L., McKay, J. R., Rosenthal, R., Houldin, A., Tax, A., McCorkle, R., Seligman, D. A., & Schmidt, K.
Affiliations
University of Pennsylvania (US)
Venue
Brain, Behavior, and Immunity
Publisher
Elsevier BV
Published
2001-09
Volume
15
Issue
3
Pages
199-226
ISSN
0889-1591 (ISSN-L)
OpenAlex
W1968248096
Cited by
995
References
12
Citations by year
2026: 9 · 2025: 26 · 2024: 32 · 2023: 29 · 2022: 39 · 2021: 41 · 2020: 99 · 2019: 41 · 2018: 36 · 2017: 43 · 2016: 42 · 2015: 63 · 2014: 50 · 2013: 40 · 2012: 68
FWCI
2.22
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Behavior and Immunity (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5k05da000168-30)
  • National Institute of Mental Health (MH 45178)
  • National Institute on Drug Abuse (2K05 DA 00168-23A)
  • NIH Clinical Center
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Cancer, Stress, Anesthesia, and Immune Response
Keywords
depression, stress, leukocytosis, natural killer cells, T cells, CD4/CD8 ratio, NK cell cytotoxicity, lymphocyte proliferation, cytokines, haptoglobin, immune function, disease susceptibility
MeSH terms
Depression, Female, Humans, Leukocyte Count, Male, Monocytes, Neutrophils, Stress, Physiological, Biomarkers, Lymphocyte Subsets, Lymphocyte Count

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