Cited by 206Stress Responses and CortisolAdrenal Hormones and DisordersMemory and Neural Mechanisms

Circadian regulation of cortisol after hippocampal damage in humans

Buchanan, Tony W., Kern, Simone, Allen, John S., Tranel, Daniel, Kirschbaum, Clemens·2004·Biological Psychiatry

Abstract

Background There is substantial evidence that the hippocampus (HC) regulates the activity of the hypothalamic-pituitary-adrenocortical (HPA) axis. Damage to the HC in animals produces a transient alteration in diurnal and stress-related HPA activity. This study was designed to examine the effects of HC damage on basal cortisol secretion in humans.Methods Salivary cortisol was measured in 22 patients with HC damage (12 with bilateral damage and 10 with unilateral damage), 7 brain-damaged comparison participants, 10 healthy, age-matched comparison participants, and 6 of the patients' caregivers. Salivary cortisol samples were taken immediately after awakening, 30 min after awakening, at 8:00 am, 11:00 am, 3:00 pm, 6:00 pm, and at bedtime on a single day. Brain-injured patients underwent a structural magnetic resonance imaging scan to examine quantitative volumes of the HC.Results Both bilateral and unilateral HC damage abolished the cortisol response to awakening documented in the comparison groups. Caregivers of bilateral HC patients showed a reduced response to awakening. The remainder of the circadian pattern was not affected in the HC patients; all groups showed a significant diurnal variation. There was no association between HC volume and cortisol secretion.Conclusions Hippocampal damage in humans abolishes the cortisol response to awakening, whereas the remainder of the diurnal cycle is unaffected in these patients. These data suggest a unique role of the HC in the control of basal cortisol secretion.

Integrity signals

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Crossref · 10.1016/j.biopsych.2004.08.014

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  • The cortisol response to awakening is associated with hippocampal integrity such that hippocampal damage predicts lower levels of cortisol in response to awakening.

    “We assessed the cortisol response to awakening in the elderly, which has been recently reported to be associated with HC integrity such that HC damage predicts lower levels of cortisol in response to awakening (Buchanan et al., 2004;Wolf et al., 2005).”

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Authors
Buchanan, T. W., Kern, S., Allen, J. S., Tranel, D., & Kirschbaum, C.
Affiliations
  • University of Iowa (US)
  • Technische Universität Dresden (DE)
Corresponding author
Buchanan, Tony W.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2004-11
Volume
56
Issue
9
Pages
651-656
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2005834680
Cited by
206
References
61
Citations by year
2026: 2 · 2025: 4 · 2024: 8 · 2023: 5 · 2022: 2 · 2021: 5 · 2020: 12 · 2019: 7 · 2018: 6 · 2017: 5 · 2016: 16 · 2015: 12 · 2014: 18 · 2013: 13 · 2012: 15
FWCI
3.31
Type
journal article
Language
en
Open access
closed
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (P01NS019632)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
hippocampal lesions, cortisol, circadian rhythm, diurnal variation, hypothalamic-pituitary-adrenal axis, cortisol awakening response, salivary cortisol, caregivers, hippocampal volume, brain injury
MeSH terms
Adult, Aged, Aged, 80 and over, Brain Damage, Chronic, Circadian Rhythm, Demography, Female, Hippocampus, Humans, Hydrocortisone, Functional Laterality, Male, Middle Aged, Saliva, Time Factors, Reproducibility of Results, Case-Control Studies, Caregivers, Area Under Curve

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