FASEB Bioadv. 2020 Oct 21;2(12):720-733. doi: 10.1096/fba.2020-00047. eCollection 2020 Dec.
Aging markers in human urine: A comprehensive, non-targeted LC-MS study.
FASEB bioAdvances
Takayuki Teruya, Haruhisa Goga, Mitsuhiro Yanagida
Affiliations
Affiliations
- G0 Cell Unit Okinawa Institute of Science and Technology Graduate University Okinawa Japan.
- Forensic Laboratory, Department of Criminal Investigation Okinawa Prefectural Police HQ Okinawa Japan.
PMID: 33336159
PMCID: PMC7734427 DOI: 10.1096/fba.2020-00047
Abstract
Metabolites in human biofluids document the physiological status of individuals. We conducted comprehensive, non-targeted, non-invasive metabolomic analysis of urine from 27 healthy human subjects, comprising 13 young adults (30 ± 3 years) and 14 seniors (76 ± 4 years). Quantitative analysis of 99 metabolites revealed 55 that displayed significant differences in abundance between the two groups. Forty-four did not show a statistically significant relationship with age. These include 13 standard amino acids, 5 methylated, 4 acetylated, and 9 other amino acids, 6 nucleosides, nucleobases, and derivatives, 4 sugar derivatives, 5 sugar phosphates, 4 carnitines, 2 hydroxybutyrates, 1 choline, and 1 ethanolamine derivative, and glutathione disulfide. Abundances of 53 compounds decreased, while 2 (glutathione disulfide, myo-inositol) increased in elderly people. The great majority of age-linked markers were highly correlated with creatinine. In contrast, 44 other urinary metabolites, including urate, carnitine, hippurate, and betaine, were not age-linked, neither declining nor increasing in elderly subjects. As metabolite profiles of urine and blood are quite different, age-related information in urine offers additional valuable insights into aging mechanisms of endocrine system. Correlation analysis of urinary metabolites revealed distinctly inter-related groups of compounds.
© 2020 The Authors. FASEB BioAdvances published by the Federation of American Societies for Experimental Biology.
Keywords: LC‐MS; creatinine; glutathione; human endocrine aging; non‐targeted metabolomics; pseudouridine; urinary age markers
Conflict of interest statement
The authors declare that they have no competing interests.
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