Cited by 25Stress Responses and CortisolThyroid Disorders and TreatmentsAdrenal Hormones and Disorders

Hypersecretion of corticotrophin-releasing hormone and arginine vasopressin in hypothyroid male rats as estimated with push-pull perfusion

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Tohei, A, Watanabe, G, Taya, K·1998·Journal of Endocrinology

Abstract

The relationship between hypothyroidism and disturbance of the hypothalamo-hypophysial-adrenal axis was investigated using adult male rats. Hypothyroidism was produced by administration of 4-methyl-2-thiouracil (thiouracil) in the drinking water for 2 weeks. Hypothyroidism decreased adrenal weights to 57% of controls and plasma concentrations of corticosterone to 48% of controls. The changes in the weight of adrenals recovered to control levels by administration of thyroxine. The pituitary responsiveness to corticotrophin-releasing hormone (CRH) and arginine vasopressin (AVP) for ACTH release markedly increased in hypothyroid rats as compared with euthyroid rats. In vivo release of CRH and AVP in median eminence significantly increased in hypothyroid rats as compared with euthyroid rats. There were no significant differences in hypothalamic concentrations of CRH and AVP. These results indicate that hypothyroidism causes adrenal dysfunction directly and results in hypersecretion of ACTH mediated by increases in synthesis of CRH and AVP in the hypothalamus.

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  1. McCarthy JL, Corley RC & Zarrow MX 1959 Effect of goitrogens on adrenal glands of rats. American Journal of Physiology 197 693-698.

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Authors
Tohei, A., Watanabe, G., & Taya, K.
Affiliations
Tokyo University of Agriculture and Technology (JP)
Venue
Journal of Endocrinology
Published
1998-02-01
Volume
156
Issue
2
Pages
395-400
ISSN
  • 0022-0795 (ISSN-L)
  • 1479-6805
OpenAlex
W2155626371
Cited by
25
References
30
Citations by year
2025: 1 · 2024: 1 · 2023: 1 · 2021: 1 · 2014: 1 · 2013: 2 · 2012: 1
FWCI
0.48
Type
journal article
Language
en
Open access
Locations
  • Journal of Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Colorado State University
  • Hirosaki University
  • Soochow University
  • National Institutes of Health
  • Japan Society for the Promotion of Science
  • National Institute of Diabetes and Digestive and Kidney Diseases
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
Keywords
hypothyroidism, corticotropin-releasing factor, vasopressin, ACTH secretion, adrenal dysfunction, thyroxine, median eminence, hypothalamus, corticosterone, rats
MeSH terms
Adrenal Glands, Adrenocorticotropic Hormone, Analysis of Variance, Animals, Arginine Vasopressin, Corticosterone, Corticotropin-Releasing Hormone, Hypothyroidism, Male, Median Eminence, Organ Size, Perfusion, Pituitary Gland, Thiouracil, Rats, Wistar, Rats

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