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FGF-21 levels in polyuria-polydipsia syndrome

The pathomechanism of primary polydipsia is poorly understood. Recent animal data reported a connection between fibroblast growth factor 21 (FGF-21) and elevated fluid intake independently of hormonal control by the hormone arginine-vasopressin (AVP) and osmotic stimulation. We therefore compared ci...

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Autores principales: Refardt, Julie, Sailer, Clara Odilia, Winzeler, Bettina, Betz, Matthias Johannes, Chifu, Irina, Schnyder, Ingeborg, Fassnacht, Martin, Fenske, Wiebke, Christ-Crain, Mirjam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Bioscientifica Ltd 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6311457/
https://www.ncbi.nlm.nih.gov/pubmed/30592707
http://dx.doi.org/10.1530/EC-18-0469
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author Refardt, Julie
Sailer, Clara Odilia
Winzeler, Bettina
Betz, Matthias Johannes
Chifu, Irina
Schnyder, Ingeborg
Fassnacht, Martin
Fenske, Wiebke
Christ-Crain, Mirjam
author_facet Refardt, Julie
Sailer, Clara Odilia
Winzeler, Bettina
Betz, Matthias Johannes
Chifu, Irina
Schnyder, Ingeborg
Fassnacht, Martin
Fenske, Wiebke
Christ-Crain, Mirjam
author_sort Refardt, Julie
collection PubMed
description The pathomechanism of primary polydipsia is poorly understood. Recent animal data reported a connection between fibroblast growth factor 21 (FGF-21) and elevated fluid intake independently of hormonal control by the hormone arginine-vasopressin (AVP) and osmotic stimulation. We therefore compared circulating FGF-21 levels in patients with primary polydipsia to patients with AVP deficiency (central diabetes insipidus) and healthy volunteers. In this prospective cohort study, we analyzed FGF-21 levels of 20 patients with primary polydipsia, 20 patients with central diabetes insipidus and 20 healthy volunteers before and after stimulation with hypertonic saline infusion targeting a plasma sodium level ≥150 mmol/L. The primary outcome was the difference in FGF-21 levels between the three groups. Baseline characteristics were similar between the groups except for patients with central diabetes insipidus being heavier. There was no difference in baseline FGF-21 levels between patients with primary polydipsia and healthy volunteers (122 pg/mL (52,277) vs 193 pg/mL (48,301), but higher levels in patients with central diabetes insipidus were observed (306 pg/mL (114,484); P = 0.037). However, this was not confirmed in a multivariate linear regression analysis after adjusting for age, sex, BMI and smoking status. Osmotic stimulation did not affect FGF-21 levels in either group (difference to baseline: primary polydipsia −23 pg/mL (−43, 22); central diabetes insipidus 17 pg/mL (−76, 88); healthy volunteers −6 pg/mL (−68, 22); P = 0.45). To conclude, FGF-21 levels are not increased in patients with primary polydipsia as compared to central diabetes insipidus or healthy volunteers. FGF-21 therefore does not seem to be causal of elevated fluid intake in these patients.
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spelling pubmed-63114572019-01-03 FGF-21 levels in polyuria-polydipsia syndrome Refardt, Julie Sailer, Clara Odilia Winzeler, Bettina Betz, Matthias Johannes Chifu, Irina Schnyder, Ingeborg Fassnacht, Martin Fenske, Wiebke Christ-Crain, Mirjam Endocr Connect Research The pathomechanism of primary polydipsia is poorly understood. Recent animal data reported a connection between fibroblast growth factor 21 (FGF-21) and elevated fluid intake independently of hormonal control by the hormone arginine-vasopressin (AVP) and osmotic stimulation. We therefore compared circulating FGF-21 levels in patients with primary polydipsia to patients with AVP deficiency (central diabetes insipidus) and healthy volunteers. In this prospective cohort study, we analyzed FGF-21 levels of 20 patients with primary polydipsia, 20 patients with central diabetes insipidus and 20 healthy volunteers before and after stimulation with hypertonic saline infusion targeting a plasma sodium level ≥150 mmol/L. The primary outcome was the difference in FGF-21 levels between the three groups. Baseline characteristics were similar between the groups except for patients with central diabetes insipidus being heavier. There was no difference in baseline FGF-21 levels between patients with primary polydipsia and healthy volunteers (122 pg/mL (52,277) vs 193 pg/mL (48,301), but higher levels in patients with central diabetes insipidus were observed (306 pg/mL (114,484); P = 0.037). However, this was not confirmed in a multivariate linear regression analysis after adjusting for age, sex, BMI and smoking status. Osmotic stimulation did not affect FGF-21 levels in either group (difference to baseline: primary polydipsia −23 pg/mL (−43, 22); central diabetes insipidus 17 pg/mL (−76, 88); healthy volunteers −6 pg/mL (−68, 22); P = 0.45). To conclude, FGF-21 levels are not increased in patients with primary polydipsia as compared to central diabetes insipidus or healthy volunteers. FGF-21 therefore does not seem to be causal of elevated fluid intake in these patients. Bioscientifica Ltd 2018-12-04 /pmc/articles/PMC6311457/ /pubmed/30592707 http://dx.doi.org/10.1530/EC-18-0469 Text en © 2018 The authors http://creativecommons.org/licenses/by-nc/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) .
spellingShingle Research
Refardt, Julie
Sailer, Clara Odilia
Winzeler, Bettina
Betz, Matthias Johannes
Chifu, Irina
Schnyder, Ingeborg
Fassnacht, Martin
Fenske, Wiebke
Christ-Crain, Mirjam
FGF-21 levels in polyuria-polydipsia syndrome
title FGF-21 levels in polyuria-polydipsia syndrome
title_full FGF-21 levels in polyuria-polydipsia syndrome
title_fullStr FGF-21 levels in polyuria-polydipsia syndrome
title_full_unstemmed FGF-21 levels in polyuria-polydipsia syndrome
title_short FGF-21 levels in polyuria-polydipsia syndrome
title_sort fgf-21 levels in polyuria-polydipsia syndrome
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6311457/
https://www.ncbi.nlm.nih.gov/pubmed/30592707
http://dx.doi.org/10.1530/EC-18-0469
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