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Serum Trimethylamine N-oxide, Carnitine, Choline, and Betaine in Relation to Colorectal Cancer Risk in the Alpha Tocopherol, Beta Carotene Cancer Prevention Study
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Abstract
Abstract Background: Trimethylamine N-oxide (TMAO), a choline-derived metabolite produced by gut microbiota, and its biomarker precursors have not been adequately evaluated in relation to colorectal cancer risk. Methods: We investigated the relationship between serum concentrations of TMAO and its biomarker precursors (choline, carnitine, and betaine) and incident colorectal cancer risk in a nested case–control study of male smokers in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. We measured biomarker concentrations in baseline fasting serum samples from 644 incident colorectal cancer cases and 644 controls using LC/MS-MS. Logistic regression models estimated the ORs and 95% confidence interval (CI) for colorectal cancer by quartile (Q) of serum TMAO, choline, carnitine, and betaine concentrations. Results: Men with higher serum choline at ATBC baseline had approximately 3-fold greater risk of developing colorectal cancer over the ensuing (median ± IQR) 14 ± 10 years (in fully adjusted models, Q4 vs. Q1, OR, 3.22; 95% CI, 2.24–4.61; Ptrend < 0.0001). The prognostic value of serum choline for prediction of incident colorectal cancer was similarly robust for proximal, distal, and rectal colon cancers (all P < 0.0001). The association between serum TMAO, carnitine, or betaine and colorectal cancer risk was not statistically significant (P = 0.25, 0.71, and 0.61, respectively). Conclusions: Higher serum choline concentration (but not TMAO, carnitine, or betaine) was associated with increased risk of colorectal cancer. Impact: Serum choline levels showed strong prognostic value for prediction of incident colorectal cancer risk across all anatomical subsites, suggesting a role of altered choline metabolism in colorectal cancer pathogenesis. Cancer Epidemiol Biomarkers Prev; 26(6); 945–52. ©2017 AACR.
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“A higher plasma level of TMAO was associated with an increased risk of CRC,151 but this finding was not replicated.152”
From Influence of the Gut Microbiome, Diet, and Environment on Risk of Colorectal Cancer (2020) · cites this paper as [152]
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Metadata
- Authors
- Guertin, K. A., Li, X. S., Graubard, B. I., Albanes, D., Weinstein, S. J., Goedert, J. J., Wang, Z., Hazen, S. L., & Sinha, R.
- Affiliations
- National Institutes of Health (US)
- Cleveland Clinic (US)
- Corresponding author
- Guertin, Kristin A.
- ORCID
- Venue
- Cancer Epidemiology, Biomarkers & Prevention
- Published
- 2017-05-31
- Volume
- 26
- Issue
- 6
- Pages
- 945-952
- ISSN
- 1055-9965 (ISSN-L)
- 1538-7755
- PMC
- PMC5608021
- OpenAlex
- W2578584710
- Cited by
- 96
- References
- 37
- Citations by year
- 2026: 5 · 2025: 5 · 2024: 7 · 2023: 17 · 2022: 21 · 2021: 10 · 2020: 8 · 2019: 9 · 2018: 10 · 2017: 4
- FWCI
- 3.46
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Cancer Epidemiology Biomarkers & Prevention (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- NIH (HHSN261201500005C, R01HL103866, R01DK106000 and 1R01HL126827)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Polyamine Metabolism and Applications
- Keywords
- trimethylamine N-oxide, choline, L-carnitine, betaine, colorectal cancer risk, serum biomarkers, choline metabolism, gut microbiota, smokers, Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study
- MeSH terms
- Betaine, Carnitine, Choline, Female, Humans, Male, Methylamines, Middle Aged, Prognosis, Risk Factors, Colorectal Neoplasms, Case-Control Studies, beta Carotene, alpha-Tocopherol
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