Human age-declined saliva metabolic markers determined by LC–MS

Abstract Metabolites in human biofluids reflect individual physiological states influenced by various factors. Using liquid chromatography-mass spectrometry (LC–MS), we conducted non-targeted, non-invasive metabolomics using saliva of 27 healthy volunteers in Okinawa, comprising 13 young (30 ± 3 yea...

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Autores principales: Takayuki Teruya, Haruhisa Goga, Mitsuhiro Yanagida
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/edea6e5599774a9a9122104cd53835b8
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spelling oai:doaj.org-article:edea6e5599774a9a9122104cd53835b82021-12-02T18:34:02ZHuman age-declined saliva metabolic markers determined by LC–MS10.1038/s41598-021-97623-72045-2322https://doaj.org/article/edea6e5599774a9a9122104cd53835b82021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97623-7https://doaj.org/toc/2045-2322Abstract Metabolites in human biofluids reflect individual physiological states influenced by various factors. Using liquid chromatography-mass spectrometry (LC–MS), we conducted non-targeted, non-invasive metabolomics using saliva of 27 healthy volunteers in Okinawa, comprising 13 young (30 ± 3 year) and 14 elderly (76 ± 4 year) subjects. Few studies have comprehensively identified age-dependent changes in salivary metabolites. Among 99 salivary metabolites, 21 were statistically age-related. All of the latter decline in abundance with advancing age, except ATP, which increased 1.96-fold in the elderly, possibly due to reduced ATP consumption. Fourteen age-linked and highly correlated compounds function in a metabolic network involving the pentose-phosphate pathway, glycolysis/gluconeogenesis, amino acids, and purines/pyrimidines nucleobases. The remaining seven less strongly correlated metabolites, include ATP, anti-oxidation-related glutathione disulfide, muscle-related acetyl-carnosine, N-methyl-histidine, creatinine, RNA-related dimethyl-xanthine and N-methyl-adenosine. In addition, glutamate and N-methyl-histidine are related to taste, so their decline suggests that the elderly lose some ability to taste. Reduced redox metabolism and muscle activity are suggested by changes in glutathione and acetyl-carnosine. These age-linked salivary metabolites together illuminate a metabolic network that reflects a decline of oral functions during human aging.Takayuki TeruyaHaruhisa GogaMitsuhiro YanagidaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Takayuki Teruya
Haruhisa Goga
Mitsuhiro Yanagida
Human age-declined saliva metabolic markers determined by LC–MS
description Abstract Metabolites in human biofluids reflect individual physiological states influenced by various factors. Using liquid chromatography-mass spectrometry (LC–MS), we conducted non-targeted, non-invasive metabolomics using saliva of 27 healthy volunteers in Okinawa, comprising 13 young (30 ± 3 year) and 14 elderly (76 ± 4 year) subjects. Few studies have comprehensively identified age-dependent changes in salivary metabolites. Among 99 salivary metabolites, 21 were statistically age-related. All of the latter decline in abundance with advancing age, except ATP, which increased 1.96-fold in the elderly, possibly due to reduced ATP consumption. Fourteen age-linked and highly correlated compounds function in a metabolic network involving the pentose-phosphate pathway, glycolysis/gluconeogenesis, amino acids, and purines/pyrimidines nucleobases. The remaining seven less strongly correlated metabolites, include ATP, anti-oxidation-related glutathione disulfide, muscle-related acetyl-carnosine, N-methyl-histidine, creatinine, RNA-related dimethyl-xanthine and N-methyl-adenosine. In addition, glutamate and N-methyl-histidine are related to taste, so their decline suggests that the elderly lose some ability to taste. Reduced redox metabolism and muscle activity are suggested by changes in glutathione and acetyl-carnosine. These age-linked salivary metabolites together illuminate a metabolic network that reflects a decline of oral functions during human aging.
format article
author Takayuki Teruya
Haruhisa Goga
Mitsuhiro Yanagida
author_facet Takayuki Teruya
Haruhisa Goga
Mitsuhiro Yanagida
author_sort Takayuki Teruya
title Human age-declined saliva metabolic markers determined by LC–MS
title_short Human age-declined saliva metabolic markers determined by LC–MS
title_full Human age-declined saliva metabolic markers determined by LC–MS
title_fullStr Human age-declined saliva metabolic markers determined by LC–MS
title_full_unstemmed Human age-declined saliva metabolic markers determined by LC–MS
title_sort human age-declined saliva metabolic markers determined by lc–ms
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/edea6e5599774a9a9122104cd53835b8
work_keys_str_mv AT takayukiteruya humanagedeclinedsalivametabolicmarkersdeterminedbylcms
AT haruhisagoga humanagedeclinedsalivametabolicmarkersdeterminedbylcms
AT mitsuhiroyanagida humanagedeclinedsalivametabolicmarkersdeterminedbylcms
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