Cited by 46Colorectal Cancer Screening and DetectionGut microbiota and healthNutritional Studies and Diet

Partial associations of dietary iron, smoking and intestinal bacteria with colorectal cancer risk

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Kato, Ikuko, Boleij, Annemarie, Kortman, Guus A. M., Roelofs, Rian, Djuric, Zora, Severson, Richard K., Tjalsma, Harold·2013·Nutrition and Cancer

Abstract

Smoking and high red meat intake have been associated with colorectal cancer (CRC) risk. Increased iron exposure may be a common factor, favoring the colonization of certain bacterial pathogens that preferentially grow in an iron-rich luminal environment. We analyzed the data from a population-based case-control study of CRC and measured antibody levels against flagelin of Salmonella (FliC), one of the irontrophic bacteria, in 2 independent blood collections. The risk of CRC synergistically increased by combined exposures to heme iron intake and pack-yr (PY) of cigarette smoking (P value for the interaction = 0.039 on the continuous scale). There was a marginally significant interaction between heme iron intake and PY in increasing FliC antibody in the U.S. control subjects (P = 0.055), although no iron or smoking data were available for Dutch samples. Furthermore, FliC antibody levels were significantly higher in patients with colorectal polyps and cancer than in controls in both Dutch (3.93 vs. 2.23) (P = 0.014) and U.S. samples (6.65 vs. 4.37) (P < 0.001). Potential roles of iron from cigarette smoking and dietary heme in CRC through altering irontrophic luminal bacterial population may warrant further investigation.

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Authors
Kato, I., Boleij, A., Kortman, G. A. M., Roelofs, R., Djuric, Z., Severson, R. K., & Tjalsma, H.
Affiliations
  • Wayne State University (US)
  • Radboud University Nijmegen (NL)
Venue
Nutrition and Cancer
Published
2013-02
Volume
65
Issue
2
Pages
169-177
ISSN
  • 0163-5581 (ISSN-L)
  • 1532-7914
OpenAlex
W2131629553
Cited by
46
References
50
Citations by year
2026: 2 · 2025: 1 · 2024: 2 · 2023: 8 · 2022: 3 · 2021: 7 · 2020: 4 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 5 · 2015: 1 · 2014: 1 · 2013: 2
FWCI
1.61
Type
journal article
Language
en
Open access
Locations
  • Nutrition and Cancer (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
National Cancer Institute (CA-22453, CA46592, R01CA93817, R01CA120381, R01CA093817, P30CA046592, P30CA022453)
Topics
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Screening and Detection
  • 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
Keywords
colorectal cancer, dietary iron, cigarette smoking, pack-years, flagellin, Salmonella, intestinal bacteria, colorectal polyps, synergistic interaction, cancer risk
MeSH terms
Aged, Aged, 80 and over, Female, Flagellin, Humans, Intestinal Mucosa, Male, Michigan, Middle Aged, Netherlands, Risk Factors, Salmonella, Smoking, Colorectal Neoplasms, Multivariate Analysis, Odds Ratio, Case-Control Studies, Iron, Dietary

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