Cited by 96Stress Responses and CortisolAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesAdrenal Hormones and Disorders

Cortisol and α-Amylase Secretion Patterns between and within Depressed and Non-Depressed Individuals

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Booij, Sanne H., Bos, Elisabeth H., Bouwmans, Mara E. J., van Faassen, Martijn, Kema, Ido P., Oldehinkel, Albertine J., de Jonge, Peter·2015·PLOS ONE

Abstract

OBJECTIVES: Associations between biological stress markers and depression are inconsistent across studies. We assessed whether inter- and intra-individual variability explain these inconsistencies. METHODS: Pair-matched depressed and non-depressed participants (N = 30) collected saliva thrice a day for 30 days, resulting in 90 measurements per individual. The relationships between measures of stress-system function and depression were examined at the group level by means of mixed model analyses, and at the individual level by means of pair-matched comparisons. The analyses were repeated after adjusting for time-varying lifestyle factors by means of time-series regression analyses. RESULTS: Cortisol and α-amylase levels were higher, the α-amylase/cortisol ratio larger, and the daily cortisol slope steeper in the depressed compared to the non-depressed group. Adjusting for lifestyle factors and antidepressant use reduced the associations under study. In 40%-60% of the matched comparisons, depressed individuals had higher cortisol and α-amylase levels, a larger α-amylase/cortisol ratio, and a steeper daily slope than their non-depressed match, regardless of adjustment. CONCLUSIONS: Our group-level findings were mostly in line with the literature but generalization to individuals appeared troublesome. Findings of studies on this topic should be interpreted with care, because in clinical practice the focus is on individuals instead of groups.

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Authors
Booij, S. H., Bos, E. H., Bouwmans, M. E. J., van Faassen, M., Kema, I. P., Oldehinkel, A. J., & de Jonge, P.
Affiliations
University Medical Center Groningen (NL)
Corresponding author
Booij, Sanne H.
Venue
PLOS ONE
Published
2015-07-06
Volume
10
Issue
7
Pages
e0131002
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1830668861
Cited by
96
References
46
Citations by year
2026: 5 · 2025: 7 · 2024: 6 · 2023: 7 · 2022: 12 · 2021: 12 · 2020: 9 · 2019: 11 · 2018: 7 · 2017: 6 · 2016: 10 · 2015: 4
FWCI
4.68
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by)
Funders
  • ZonMw (91812607)
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (91812607;)
  • Universitair Medisch Centrum Groningen
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
depression, cortisol, alpha-amylase, stress biomarkers, diurnal cortisol slope, within-person variability, between-person variation, antidepressant use, lifestyle factors, salivary biomarkers
MeSH terms
Adaptation, Physiological, Adult, Affect, alpha-Amylases, Antidepressive Agents, Circadian Rhythm, Depression, Depressive Disorder, Female, Humans, Hydrocortisone, Hypothalamo-Hypophyseal System, Life Style, Male, Medical Records, Middle Aged, Netherlands, Pituitary-Adrenal System, Saliva, Secretory Rate, Stress, Physiological, Matched-Pair Analysis, Young Adult, Actigraphy

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