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Urine Metabolomics by 1H-NMR Spectroscopy Indicates Associations between Serum 3,5-T2 Concentrations and Intermediary Metabolism in Euthyroid Humans

  • Context: 3,5-Diiodo-<smlcap>L</smlcap>-thyronine (3,5-T<sub>2</sub>) is a thyroid hormone metabolite which exhibited versatile effects in rodent models, including the prevention of insulin resistance or hepatic steatosis typically forced by a high-fat diet. With respect to euthyroid humans, we recently observed a putative link between serum 3,5-T<sub>2</sub> and glucose but not lipid metabolism. Objective: The aim of the present study was to widely screen the urine metabolome for associations with serum 3,5-T<sub>2</sub> concentrations in healthy individuals. Study Design and Methods: Urine metabolites of 715 euthyroid participants of the population-based Study of Health in Pomerania (SHIP-TREND) were analyzed by <sup>1</sup>H-NMR spectroscopy. Multinomial logistic and multivariate linear regression models were used to detect associations between urine metabolites and serum 3,5-T<sub>2</sub> concentrations. Results: Serum 3,5-T<sub>2</sub> concentrations were positively associated with urinary levels of trigonelline, pyroglutamate, acetone and hippurate. In detail, the odds for intermediate or suppressed serum 3,5-T<sub>2</sub> concentrations doubled owing to a 1-standard deviation (SD) decrease in urine trigonelline levels, or increased by 29-50% in relation to a 1-SD decrease in urine pyroglutamate, acetone and hippurate levels. Conclusion: Our findings in humans confirmed the metabolic effects of circulating 3,5-T<sub>2</sub> on glucose and lipid metabolism, oxidative stress and enhanced drug metabolism as postulated before based on interventional pharmacological studies in rodents. Of note, 3,5-T<sub>2</sub> exhibited a unique urinary metabolic profile distinct from previously published results for the classical thyroid hormones.

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Author: Maik Pietzner, Georg Homuth, Kathrin Budde, Ina Lehmphul, Uwe Völker, Henry Völzke, Matthias Nauck, Josef Köhrle, Nele Friedrich
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=26601079
Parent Title (English):European Thyroid Journal
Publisher:S. Karger AG
Place of publication:Basel, Switzerland
Document Type:Article
Date of first Publication:2015/05/28
Release Date:2020/09/29
Tag:3,5-Diiodothyronine, NMR spectroscopy, Thyroid hormone, Trigonelline, Urine metabolome
GND Keyword:-
Issue:Suppl 1
First Page:92
Last Page:100
Faculties:Universitätsmedizin / Institut für Community Medicine
Licence (German):License LogoUrheberrechtlich geschützt