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Chen L, Zhang J, Teh JPY, Cheon BK, Yang Y, Schlundt J, Wang Y, Conway PL. Comparative Blood and Urine Metabolomics Analysis of Healthy Elderly and Young Male Singaporeans. J Proteome Res 2020; 19:3264-3275. [PMID: 32434331 DOI: 10.1021/acs.jproteome.0c00215] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Comparative metabolomics analysis of biofluids could provide information about the metabolic alterations in aging. To investigate the signature of multiple metabolic profiles associated with aging in an Asian population, we performed a pilot study in healthy Singaporeans, including 33 elderly and 33 young males. Fasting whole bloods were analyzed by routine hematology; the serum and urine metabolome profiles were obtained using NMR-based nontargeted metabolomics analysis and targeted lipoprotein analysis. Among the 90 identified compounds in serum and urine samples, 32 were significantly different between the two groups. The most obvious age-related metabolic signatures include decreased serum levels of albumin lysyl and essential amino acids and derivatives but increased levels of N-acetyl glycoproteins and several lipids and elevated urine levels of trimethylamine N-oxide, scyllo-inositol, citrate, and ascorbic acid but decreased levels of several amino acids, acetate, etc. Among 112 lipoprotein subfractions, 65 were elevated, and 2 were lower in the elderly group. These significantly age-varying metabolites, especially in the amino acid and fatty acid metabolism pathways, suggest that the regulation of these pathways contributes to the aging process in Chinese Singaporeans. Further multiomics studies including the gut microbiome and intervention studies in a larger cohort are needed to elucidate the possible mechanisms in the aging process.
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Affiliation(s)
- Liwei Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore.,Nanyang Technological University Food Technology Centre (NAFTEC), Nanyang Technological University, 637459 Singapore
| | - Jingtao Zhang
- Singapore Phenome Centre, Nanyang Technological University, Experimental Medicine Building, 59 Nanyang Drive, 636921 Singapore
| | - Jean Pui Yi Teh
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore.,Nanyang Technological University Food Technology Centre (NAFTEC), Nanyang Technological University, 637459 Singapore
| | - Bobby K Cheon
- School of Social Sciences, Nanyang Technological University, 48 Nanyang Avenue, HSS-04-01, 639818 Singapore.,Singapore Institute for Clinical Sciences, Agency for Science Technology and Research (A*STAR), 30 Medical Drive, 117609 Singapore
| | - Yifan Yang
- Physical Education and Sports Science, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, 637616 Singapore
| | - Joergen Schlundt
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore.,Nanyang Technological University Food Technology Centre (NAFTEC), Nanyang Technological University, 637459 Singapore
| | - Yulan Wang
- Singapore Phenome Centre, Nanyang Technological University, Experimental Medicine Building, 59 Nanyang Drive, 636921 Singapore
| | - Patricia L Conway
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 Singapore.,Nanyang Technological University Food Technology Centre (NAFTEC), Nanyang Technological University, 637459 Singapore.,Centre for Marine Science and Innovation, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW 2052, Australia
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