Cited by 115Stress Responses and CortisolAdrenal Hormones and DisordersCircadian rhythm and melatonin

Impaired diurnal adrenal rhythmicity restored by constant infusion of corticotropin-releasing hormone in corticotropin-releasing hormone-deficient mice.

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Muglia, L J, Jacobson, L, Weninger, S C, Luedke, C E, Bae, D S, Jeong, K H, Majzoub, J A·1997·Journal of Clinical Investigation

Abstract

The normal pattern of daily glucocorticoid production in mammals requires circadian modulation of hypothalamicpituitary-adrenal axis activity. To assess both the factors responsible for imparting this diurnal profile and its physiologic importance, we have exploited corticotropin-releasing hormone (CRH)-deficient mice generated by homologous recombination in embryonic stem cells. CRH-deficient mice have lost normal circadian variations in plasma ACTH and glucocorticoid while maintaining normal circadian locomotor activity. Constant peripheral infusion of CRH produced marked diurnal excursions of plasma glucocorticoid, indicating that CRH acts in part as a permissive factor for other circadian modulators of adrenocortical activity. The presence of atrophic adrenals in CRH-deficient mice without an overt deficit in basal plasma ACTH concentration suggests that the diurnal increase in ACTH is essential to maintain normal adrenal function.

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  • CRH KO mice demonstrate a sexual dichotomy in response to stress, indicating a mechanism independent of CRH.

    “CRH KO mice also demonstrate this sexual dichotomy in response to stress, indicating a mechanism independent of CRH (12, 38).”

    From Interleukin-6 is an essential, corticotropin-releasing hormone-independent stimulator of the adrenal axis during immune system activation (2000) · cites this paper as [38]

    The Discussion (p. 2923) reports that female CRH-knockout mice can produce glucocorticoids during acute restraint stress, supporting a stress response despite CRH deficiency. The paper compares male and female knockout mice for circadian corticosterone levels, but does not establish a male–female difference in their responses to stress. (LLM, conf=0.84)

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Authors
Muglia, L. J., Jacobson, L., Weninger, S. C., Luedke, C. E., Bae, D. S., Jeong, K. H., & Majzoub, J. A.
Affiliations
  • Boston Children's Hospital (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Majzoub, J A
Venue
Journal of Clinical Investigation
Published
1997-06-15
Volume
99
Issue
12
Pages
2923-2929
ISSN
0021-9738 (ISSN-L)
OpenAlex
W1992866860
Cited by
115
References
47
Citations by year
2026: 2 · 2025: 1 · 2023: 1 · 2022: 2 · 2021: 3 · 2019: 2 · 2018: 2 · 2017: 2 · 2016: 6 · 2015: 5 · 2014: 6 · 2013: 2 · 2012: 1
FWCI
5.64
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Pfizer
  • National Alliance for Research on Schizophrenia and Depression
  • National Institutes of Health (1p30hd033688-01)
  • Pfizer Pharmaceuticals
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 33688)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
corticotropin-releasing factor, circadian rhythm, hypothalamic-pituitary-adrenal axis, ACTH, adrenal atrophy, adrenocortical function, glucocorticoid synthesis
MeSH terms
Adrenal Cortex, Adrenocorticotropic Hormone, Animals, Blood Glucose, Circadian Rhythm, Corticosterone, Corticotropin-Releasing Hormone, Female, Glucocorticoids, Insulin, Light, Male, Mice, Inbred C57BL, Motor Activity, Photoperiod, Mice, Knockout, Mice

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