Cited by 131Growth Hormone and Insulin-like Growth FactorsLipid metabolism and biosynthesisAdipose Tissue and Metabolism

Additive effects of cortisol and growth hormone on regional and systemic lipolysis in humans

Djurhuus, C. B., Gravholt, C. H., Nielsen, S., Pedersen, S. B., Møller, N., Schmitz, O.·2004·American Journal of Physiology-Endocrinology and Metabolism

Abstract

Growth hormone (GH) and cortisol are important to ensure energy supplies during fasting and stress. In vitro experiments have raised the question whether GH and cortisol mutually potentiate lipolysis. In the present study, combined in vivo effects of GH and cortisol on adipose and muscle tissue were explored. Seven lean males were examined four times over 510 min. Microdialysis catheters were inserted in the vastus lateralis muscle and in the subcutaneous adipose tissue of the thigh and abdomen. A pancreatic-pituitary clamp was maintained with somatostatin infusion and replacement of GH, insulin, and glucagon at baseline levels. At t = 150 min, administration was performed of NaCl (I), a 2 μg·kg-1·min-1 hydrocortisone infusion (II), a 200-μg bolus of GH (III), or a combination of II and III (IV). Systemic free fatty acid (FFA) turnover was estimated by [9,10-3 H]palmitate appearance. Circulating levels of glucose, insulin, and glucagon were comparable in I-IV. GH levels were similar in I and II (0.50 ± 0.08 μg/l, mean ± SE). Peak levels during III and IV were ∼9 μg/l. Cortisol levels rose to ∼900 nmol/l in II and IV. Systemic (i.e., palmitate fluxes, s-FFA, s-glycerol) and regional (interstitial adipose tissue and skeletal muscle) markers of lipolysis increased in response to both II and III. In IV, they were higher and equal to the isolated additive effects of the two hormones. In conclusion, we find that GH and cortisol stimulate systemic and regional lipolysis independently and in an additive manner when coadministered. On the basis of previous studies, we speculate that the mode of action is mediated though different pathways.

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Crossref · 10.1152/ajpendo.00199.2003

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Authors
Djurhuus, C. B., Gravholt, C. H., Nielsen, S., Pedersen, S. B., Møller, N., & Schmitz, O.
Affiliations
Aarhus University Hospital (DK)
Venue
American Journal of Physiology-Endocrinology and Metabolism
Published
2004-03
Volume
286
Issue
3
Pages
E488-E494
ISSN
  • 0193-1849 (ISSN-L)
  • 1522-1555
OpenAlex
W2082503906
Cited by
131
References
43
Citations by year
2025: 3 · 2024: 3 · 2023: 5 · 2022: 3 · 2021: 5 · 2020: 4 · 2019: 5 · 2018: 3 · 2017: 10 · 2016: 6 · 2015: 6 · 2014: 7 · 2013: 5 · 2012: 6
FWCI
5.50
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Endocrinology and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Novo Nordisk
  • Diabetesforeningen
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
growth hormone, cortisol, lipolysis, free fatty acid turnover, adipose tissue lipolysis, vastus lateralis, subcutaneous adipose tissue, glycerol, hormone synergy
MeSH terms
Abdomen, Adipose Tissue, Adult, Drug Synergism, Fatty Acids, Nonesterified, Glycerol, Humans, Hydrocortisone, Knee, Lipolysis, Male, Growth Hormone, Placebo Effect, Single-Blind Method, Muscle, Skeletal, Palmitic Acid

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