Metabolomic Profiles of Mice Tissues Reveals an Interplay Between Aging and Energy Metabolism

Qishun Zhou; Jakob Kerbl-Knapp; Fangrong Zhang; Melanie Korbelius; Katharina Barbara Kuentzel; Nemanja Vujic; Alena Akhmetshina; Gerd Hörl; Margret Paar; Ernst Steyrer; Dagmar Kratky; Tobias Madl

doi:10.20944/preprints202112.0120.v1

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preprints.org > biology and life sciences > endocrinology and metabolism > doi: 10.20944/preprints202112.0120.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Metabolomic Profiles of Mice Tissues Reveals an Interplay Between Aging and Energy Metabolism

Katharina Barbara Kuentzel

Version 1 : Received: 7 December 2021 / Approved: 8 December 2021 / Online: 8 December 2021 (12:03:07 CET)

A peer-reviewed article of this Preprint also exists.

Zhou, Q.; Kerbl-Knapp, J.; Zhang, F.; Korbelius, M.; Kuentzel, K.B.; Vujić, N.; Akhmetshina, A.; Hörl, G.; Paar, M.; Steyrer, E.; Kratky, D.; Madl, T. Metabolomic Profiles of Mouse Tissues Reveal an Interplay between Aging and Energy Metabolism. Metabolites 2022, 12, 17. Zhou, Q.; Kerbl-Knapp, J.; Zhang, F.; Korbelius, M.; Kuentzel, K.B.; Vujić, N.; Akhmetshina, A.; Hörl, G.; Paar, M.; Steyrer, E.; Kratky, D.; Madl, T. Metabolomic Profiles of Mouse Tissues Reveal an Interplay between Aging and Energy Metabolism. Metabolites 2022, 12, 17.

Abstract

Energy metabolism, including alterations in energy intake and expenditure, is closely related to aging and longevity. Metabolomics studies have recently unraveled changes in metabolite composition in plasma and tissues during aging and have provided critical information to elucidate the molecular basis of aging process. However, the metabolic changes in tissues responsible for food intake and lipid storage have remained unexplored. In this study, we aimed to investigate aging-related metabolic alterations in these tissues. To fill this gap, we employed NMR-based metabolomics in several tissues, including different parts of the intestine (duodenum, jejunum, ileum) and brown/white adipose tissues (BAT, WAT) of young (9-10 weeks) and old (96-104 weeks) wild-type (mixed genetic background of 129/J and C57BL/6) mice. We further included plasma and skeletal muscle of the same mice to verify previous results. Strikingly, we found that duodenum, jejunum, ileum, and WAT do not metabolically age. In contrast, plasma, skeletal muscle, and BAT show a strong metabolic aging phenotype. Overall, we provide first insights into the metabolic changes of tissues essential for nutrient uptake and lipid storage and have identified biomarkers for metabolites that could be further explored to study the molecular mechanisms of aging.

Keywords

aging; NMR spectroscopy; mice; energy metabolism; fat; intestine; metabolomics

Subject

Biology and Life Sciences, Endocrinology and Metabolism

Copyright: 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.

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