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The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Untargeted metabolomics identifies trimethyllysine, a TMAO-producing nutrient precursor, as a predictor of incident cardiovascular disease risk

Open access
Li, Xinmin S., Wang, Zeneng, Cajka, Tomas, Buffa, Jennifer A., Nemet, Ina, Hurd, Alex G., Gu, Xiaodong, Skye, Sarah M., Roberts, Adam B., Wu, Yuping, Li, Lin, Shahen, Christopher J., Wagner, Matthew A., Hartiala, Jaana A., Kerby, Robert L., Romano, Kymberleigh A., Han, Yi, Obeid, Slayman, Lüscher, Thomas F., Allayee, Hooman, Rey, Federico E., DiDonato, Joseph A., Fiehn, Oliver, Tang, W.H. Wilson, Hazen, Stanley L.·2018·JCI Insight

Abstract

Using an untargeted metabolomics approach in initial (N = 99 subjects) and replication cohorts (N = 1,162), we discovered and structurally identified a plasma metabolite associated with cardiovascular disease (CVD) risks, N6,N6,N6-trimethyl-L-lysine (trimethyllysine, TML). Stable-isotope-dilution tandem mass spectrometry analyses of an independent validation cohort (N = 2,140) confirmed TML levels are independently associated with incident (3-year) major adverse cardiovascular event risks (hazards ratio [HR], 2.4; 95% CI, 1.7-3.4) and incident (5-year) mortality risk (HR, 2.9; 95% CI, 2.0-4.2). Genome-wide association studies identified several suggestive loci for TML levels, but none reached genome-wide significance; and d9(trimethyl)-TML isotope tracer studies confirmed TML can serve as a nutrient precursor for gut microbiota-dependent generation of trimethylamine (TMA) and the atherogenic metabolite trimethylamine N-oxide (TMAO). Although TML was shown to be abundant in both plant- and animal-derived foods, mouse and human fecal cultures (omnivores and vegans) showed slow conversion of TML to TMA. Furthermore, unlike chronic dietary choline, TML supplementation in mice failed to elevate plasma TMAO or heighten thrombosis potential in vivo. Thus, TML is identified as a strong predictor of incident CVD risks in subjects and to serve as a dietary precursor for gut microbiota-dependent generation of TMAO; however, TML does not appear to be a major microbial source for TMAO generation in vivo.

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Metadata

Authors
Li, X. S., Wang, Z., Cajka, T., Buffa, J. A., Nemet, I., Hurd, A. G., Gu, X., Skye, S. M., Roberts, A. B., Wu, Y., Li, L., Shahen, C. J., Wagner, M. A., Hartiala, J. A., Kerby, R. L., Romano, K. A., Han, Y., Obeid, S., Lüscher, T. F., Allayee, H., Rey, F. E., DiDonato, J. A., Fiehn, O., Tang, W. H. W., & Hazen, S. L.
Venue
JCI Insight
Published
2018-03-22
Volume
3
Issue
6
ISSN
2379-3708 (ISSN-L)
OpenAlex
W2790593817
Cited by
167
References
12
FWCI
6.36
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Untargeted metabolomics identifies trimethyllysine, a TMAO-producing nutrient precursor, as a predictor of incident cardiovascular disease risk. https://app.cochat.ai/papers/10.1172/jci.insight.99096
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Li, X. S., Wang, Z., Cajka, T., Buffa, J. A., Nemet, I., Hurd, A. G., Gu, X., Skye, S. M., Roberts, A. B., Wu, Y., Li, L., Shahen, C. J., Wagner, M. A., Hartiala, J. A., Kerby, R. L., Romano, K. A., Han, Y., Obeid, S., Lüscher, T. F., . . . Hazen, S. L. (2018). Untargeted metabolomics identifies trimethyllysine, a TMAO-producing nutrient precursor, as a predictor of incident cardiovascular disease risk. JCI Insight. https://doi.org/10.1172/jci.insight.99096

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.