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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2021
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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) |
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Medicine R Science Q Takayuki Teruya Haruhisa Goga Mitsuhiro Yanagida Human age-declined saliva metabolic markers determined by LC–MS |
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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 |
_version_ |
1718377953376600064 |