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van der Spek, A.* ; Broer, L.* ; Draisma, H.H.M.* ; Pool, R.* ; Albrecht, E. ; Beekman, M.* ; Mangino, M.* ; Raag, M.* ; Nyholt, D.R.* ; Dharuri, H.K.* ; Codd, V.* ; Amin, N.* ; de Geus, E.J.C.* ; Deelen, J.* ; Demirkan, A.* ; Yet, I.* ; Fischer, K.* ; Haller, T.* ; Henders, A.K.* ; Isaacs, A.* ; Medland, S.E.* ; Montgomery, G.W.* ; Mooijaart, S.P.* ; Strauch, K. ; Suchiman, H.E.D.* ; Vaarhorst, A.A.M.* ; van Heemst, D.* ; Wang-Sattler, R. ; Whitfield, J.B.* ; Willemsen, G.* ; Wright, M.J.* ; Martin, N.G.* ; Samani, N.J.* ; Metspalu, A.* ; Spector, T.D.* ; Boomsma, D.I.* ; van Duijn, C.M.* ; Gieger, C.

Metabolomics reveals a link between homocysteine and lipid metabolism and leukocyte telomere length: The ENGAGE consortium.

Sci. Rep. 9:11623 (2019)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Telomere shortening has been associated with multiple age-related diseases such as cardiovascular disease, diabetes, and dementia. However, the biological mechanisms responsible for these associations remain largely unknown. In order to gain insight into the metabolic processes driving the association of leukocyte telomere length (LTL) with age-related diseases, we investigated the association between LTL and serum metabolite levels in 7,853 individuals from seven independent cohorts. LTL was determined by quantitative polymerase chain reaction and the levels of 131 serum metabolites were measured with mass spectrometry in biological samples from the same blood draw. With partial correlation analysis, we identified six metabolites that were significantly associated with LTL after adjustment for multiple testing: lysophosphatidylcholine acyl C17:0 (lysoPC a C17:0, p-value=7.1 x 10(-6)), methionine (p-value=9.2 x 10(-5)), tyrosine (p-value=2.1 x 10(-4)), phosphatidylcholine diacyl C32:1 (PC aa C32:1, p-value=2.4 x 10(-4)), hydroxypropionylcarnitine (C3-OH, p-value=2.6 x 10(-4)), and phosphatidylcholine acyl-alkyl C38:4 (PC ae C38:4, p-value=9.0 x 10(-4)). Pathway analysis showed that the three phosphatidylcholines and methionine are involved in homocysteine metabolism and we found supporting evidence for an association of lipid metabolism with LTL. In conclusion, we found longer LTL associated with higher levels of lysoPC a C17:0 and PC ae C38:4, and with lower levels of methionine, tyrosine, PC aa C32:1, and C3-OH. These metabolites have been implicated in inflammation, oxidative stress, homocysteine metabolism, and in cardiovascular disease and diabetes, two major drivers of morbidity and mortality.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Plasma Total Homocysteine; Low-density-lipoprotein; White Blood-cells; Cardiovascular-disease; Life-span; Methionine Restriction; Familial Longevity; Endothelial-cells; Heart-disease; Mortality
ISSN (print) / ISBN 2045-2322
e-ISSN 2045-2322
Quellenangaben Volume: 9, Issue: 1, Pages: , Article Number: 11623 Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Non-patent literature Publications
Reviewing status Peer reviewed