Plasma and dietary carotenoids and vitamines A,C and E and the risk of colon and rectal cancer in the European prospective investigation into cancer and nutrition

M. Leenders, A.M. Leufkens, P.D. Siersema, F.J.B. van Duijnhoven, A. Vrieling, P.J.M. Hulshof

Research output: Contribution to journalArticleAcademicpeer-review

37 Citations (Scopus)

Abstract

Carotenoids and vitamins A, C and E are possibly associated with a reduced colorectal cancer (CRC) risk through antioxidative properties. The association of prediagnostic plasma concentrations and dietary consumption of carotenoids and vitamins A, C and E with the risk of colon and rectal cancer was examined in this case-control study, nested within the European Prospective Investigation into Cancer and Nutrition study. Plasma concentrations of carotenoids (alpha- and beta-carotene, canthaxanthin, beta-cryptoxanthin, lutein, lycopene, zeaxanthin) and vitamins A (retinol), C and E (alpha-, beta- and gamma-and delta-tocopherol) and dietary consumption of beta-carotene and vitamins A, C and E were determined in 898 colon cancer cases, 501 rectal cancer cases and 1,399 matched controls. Multivariable conditional logistic regression models were performed to estimate incidence rate ratios (IRR) and corresponding 95% confidence intervals (CIs). An association was observed between higher prediagnostic plasma retinol concentration and a lower risk of colon cancer (IRR for highest quartile = 0.63, 95% CI: 0.46, 0.87, p for trend = 0.01), most notably proximal colon cancer (IRR for highest quartile = 0.46, 95% CI: 0.27, 0.77, p for trend = 0.01). Additionally, inverse associations for dietary beta-carotene and dietary vitamins C and E with (distal) colon cancer were observed. Although other associations were suggested, there seems little evidence for a role of these selected compounds in preventing CRC through their antioxidative properties.
Original languageEnglish
Pages (from-to)2930-2939
JournalInternational Journal of Cancer
Volume135
Issue number12
DOIs
Publication statusPublished - 2014

Keywords

  • serum alpha-tocopherol
  • colorectal-cancer
  • oxidative stress
  • physical-activity
  • epic project
  • antioxidants
  • retinol
  • health
  • cohort
  • biomarkers

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