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Olle Melander

Principal investigator

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In adults with obesity, copeptin is linked with BMI but is not associated with long-term exposure to cortisol and cortisone

Author

  • Eline S. van der Valk
  • Bibian van der Voorn
  • Anand M. Iyer
  • Sjoerd A.A. van den Berg
  • Mesut Savas
  • Yolanda B. de Rijke
  • Erica L.T. van den Akker
  • Olle Melander
  • Elisabeth F.C. van Rossum

Summary, in English

Context: Obesity and cardiometabolic diseases are associated with higher long-term glucocorticoid levels, measured as scalp hair cortisol (HairF) and cortisone (HairE). Cardiometabolic diseases have also been associated with copeptin, a stable surrogate marker for the arginine-vasopressin (AVP) system. Since AVP is, together with corticotropin-releasing hormone (CRH) an important regulator of the hypothalamic-pituitary adrenal axis (HPA axis), we hypothesize that AVP contributes to chronic hypercortisolism in obesity. Objective: To investigate whether copeptin levels are associated with Higher HairF and HairE levels in obesity. Design: A cross-sectional study in 51 adults with obesity (BMI ≥30 kg/m2). Methods: Associations and interactions between copeptin, HairF, HairE, and cardiometabolic parameters were cross-sectionally analyzed. Results: Copeptin was strongly associated with BMI and waist circumference (WC) (rho = 0.364 and 0.530, P = 0.008 and <0.001, respectively), also after correction for confounders. There were no associations between copeptin and HairF or HairE on a continuous or dichotomized scale, despite correction for confounders. Conclusion: In patients with obesity, AVP seems not a major contributor to the frequently observed high cortisol levels. Other factors which stimulate the HPA axis or affect cortisol synthesis or breakdown may be more important than the influence of AVP on long-term glucocorticoid levels in obesity.

Department/s

  • Cardiovascular Research - Hypertension
  • EpiHealth: Epidemiology for Health
  • EXODIAB: Excellence in Diabetes Research in Sweden

Publishing year

2020

Language

English

Pages

669-676

Publication/Series

European Journal of Endocrinology

Volume

183

Issue

6

Document type

Journal article

Publisher

Society of the European Journal of Endocrinology

Topic

  • Endocrinology and Diabetes

Status

Published

Research group

  • Cardiovascular Research - Hypertension

ISBN/ISSN/Other

  • ISSN: 1479-683X