Cited by 114Nutritional Studies and DietCarcinogens and Genotoxicity AssessmentColorectal Cancer Screening and Detection

Dietary N-nitroso compounds and risk of colorectal cancer: a case–control study in Newfoundland and Labrador and Ontario, Canada

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Zhu, Yun, Wang, Peizhon Peter, Zhao, Jing, Green, Roger, Sun, Zhuoyu, Roebothan, Barbara, Squires, Josh, Buehler, Sharon +7 more·2014·British Journal of Nutrition

Abstract

Several N-nitroso compounds (NOC) have been shown to be carcinogenic in a variety of laboratory animals, but evidence of their carcinogenicity in humans is lacking. We aimed to examine the association between NOC intake and colorectal cancer (CRC) risk and possible effect modification by vitamins C and E and protein in a large case–control study carried out in Newfoundland and Labrador and Ontario, Canada. A total of 1760 case patients with pathologically confirmed adenocarcinoma and 2481 population controls were asked to complete a self-administered FFQ to evaluate their dietary intakes 1 year before diagnosis (for cases) or interview (for controls). Adjusted OR and 95 % CI were calculated across the quintiles of NOC (measured by N-nitrosodimethylamine (NDMA)) intake and relevant food items using unconditional logistic regression. NDMA intake was found to be associated with a higher risk of CRC (highest v.lowest quintiles: OR 1·42, 95 % CI 1·03, 1·96;P for trend = 0·005), specifically for rectal carcinoma (OR 1·61, 95 % CI 1·11, 2·35;P for trend = 0·01). CRC risk also increased with the consumption of NDMA-containing meats when the highest tertile was compared with the lowest tertile (OR 1·47, 95 % CI 1·03, 2·10;P for trend = 0·20). There was evidence of effect modification between dietary vitamin E and NDMA. Individuals with high NDMA and low vitamin E intakes had a significantly increased risk than those with both low NDMA and low vitamin E intakes (OR 3·01, 95 % CI 1·43, 6·51;P for interaction = 0·017). The present results support the hypothesis that NOC intake may be positively associated with CRC risk in humans. Vitamin E, which inhibits nitrosation, could modify the effect of NDMA on CRC risk.

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  • Phenols, indoles, and amines can combine with nitric oxide to form genotoxic N-nitroso compounds that are associated with gastrointestinal cancers in human populations.

    “phenols, indoles, and amines can combine with nitric oxide to form genotoxic N-nitroso compounds that are associated with gastrointestinal cancers in human populations (42).”

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Authors
Zhu, Y., Wang, P. P., Zhao, J., Green, R., Sun, Z., Roebothan, B., Squires, J., Buehler, S., Dicks, E., Zhao, J., Cotterchio, M., Campbell, P. T., Jain, M., Parfrey, P. S., & Mclaughlin, J. R.
Affiliations
  • Memorial University of Newfoundland (CA)
  • Cancer Care Ontario (CA)
  • American Cancer Society (US)
  • University of Toronto (CA)
  • Mount Sinai Hospital (CA)
Corresponding author
Wang, Peizhon Peter
Venue
British Journal of Nutrition
Published
2013-10-25
Volume
111
Issue
6
Pages
1109-1117
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
OpenAlex
W2017264775
Cited by
114
References
41
Citations by year
2026: 9 · 2025: 11 · 2024: 10 · 2023: 9 · 2022: 16 · 2021: 17 · 2020: 11 · 2019: 7 · 2018: 7 · 2017: 7 · 2016: 7 · 2015: 3
FWCI
3.41
Type
journal article
Language
en
Open access
Locations
  • British Journal Of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Newfoundland and Labrador Centre for Applied Health Research
  • National Institutes of Health
  • Canadian Institutes of Health Research (205835, /CPT79845, CIHR-CPT79845, U01 CA074783)
  • National Cancer Institute (UM1CA167551, U01CA074783, CA-08-502, U24CA074783, CA074783)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Screening and Detection
Keywords
N-nitroso compounds, colorectal cancer, N-nitrosodimethylamine, dietary intake, rectal cancer, vitamin E, vitamin C, protein intake, effect modification, nitrosation inhibition, processed meat, cancer risk
MeSH terms
Adenocarcinoma, Adult, Aged, Ascorbic Acid, Diet, Dietary Proteins, Dimethylnitrosamine, Female, Humans, Male, Meat, Middle Aged, Newfoundland and Labrador, Nitroso Compounds, Ontario, Surveys and Questionnaires, Rectal Neoplasms, Risk Factors, Vitamin E, Colorectal Neoplasms, Logistic Models, Case-Control Studies

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