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The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin
BACKGROUND: Several studies have investigated copeptin as a prognostic marker of different acute diseases and as a diagnostic marker in disorders of water and salt homeostasis. However, no data of the normal circadian rhythm of copeptin in healthy subjects are available. AIM: To investigate the circ...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5471567/ https://www.ncbi.nlm.nih.gov/pubmed/28656120 http://dx.doi.org/10.1155/2017/4737082 |
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author | Beglinger, Svetlana Drewe, Jürgen Christ-Crain, Mirjam |
author_facet | Beglinger, Svetlana Drewe, Jürgen Christ-Crain, Mirjam |
author_sort | Beglinger, Svetlana |
collection | PubMed |
description | BACKGROUND: Several studies have investigated copeptin as a prognostic marker of different acute diseases and as a diagnostic marker in disorders of water and salt homeostasis. However, no data of the normal circadian rhythm of copeptin in healthy subjects are available. AIM: To investigate the circadian rhythm of copeptin in healthy subjects under standardized conditions. METHODS: 19 healthy volunteers aged 18 to 53 years, male and female, were studied in a prospective observational study. In all 19 participants, blood samples for copeptin were taken in regular intervals of 30 minutes for 24 hours after a fasting period of minimum 8 hours. RESULTS: The mean values of copeptin showed a circadian rhythm, similar to that described for AVP release, with a trend towards higher levels (5.9 ± 1 pmol/L) at night and early morning between 4 am and 6 am and lowest levels (2.3 ± 0.2 pmol/L) in the late afternoon between 5 pm and 7 pm. This finding was only observed in individuals with initial higher copeptin levels, whereas in individuals with lower basal copeptin levels no circadian rhythm was observed. CONCLUSION: There is evidence for a circadian rhythm in copeptin release during 24 hours, however, of minor extent. These findings suggest that copeptin levels can be determined irrespectively of the time of the day. |
format | Online Article Text |
id | pubmed-5471567 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-54715672017-06-27 The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin Beglinger, Svetlana Drewe, Jürgen Christ-Crain, Mirjam J Biomark Research Article BACKGROUND: Several studies have investigated copeptin as a prognostic marker of different acute diseases and as a diagnostic marker in disorders of water and salt homeostasis. However, no data of the normal circadian rhythm of copeptin in healthy subjects are available. AIM: To investigate the circadian rhythm of copeptin in healthy subjects under standardized conditions. METHODS: 19 healthy volunteers aged 18 to 53 years, male and female, were studied in a prospective observational study. In all 19 participants, blood samples for copeptin were taken in regular intervals of 30 minutes for 24 hours after a fasting period of minimum 8 hours. RESULTS: The mean values of copeptin showed a circadian rhythm, similar to that described for AVP release, with a trend towards higher levels (5.9 ± 1 pmol/L) at night and early morning between 4 am and 6 am and lowest levels (2.3 ± 0.2 pmol/L) in the late afternoon between 5 pm and 7 pm. This finding was only observed in individuals with initial higher copeptin levels, whereas in individuals with lower basal copeptin levels no circadian rhythm was observed. CONCLUSION: There is evidence for a circadian rhythm in copeptin release during 24 hours, however, of minor extent. These findings suggest that copeptin levels can be determined irrespectively of the time of the day. Hindawi 2017 2017-06-01 /pmc/articles/PMC5471567/ /pubmed/28656120 http://dx.doi.org/10.1155/2017/4737082 Text en Copyright © 2017 Svetlana Beglinger et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Beglinger, Svetlana Drewe, Jürgen Christ-Crain, Mirjam The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin |
title | The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin |
title_full | The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin |
title_fullStr | The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin |
title_full_unstemmed | The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin |
title_short | The Circadian Rhythm of Copeptin, the C-Terminal Portion of Arginine Vasopressin |
title_sort | circadian rhythm of copeptin, the c-terminal portion of arginine vasopressin |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5471567/ https://www.ncbi.nlm.nih.gov/pubmed/28656120 http://dx.doi.org/10.1155/2017/4737082 |
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