TY - JOUR TI - Plasma Alkylresorcinols, Biomarkers of Whole-Grain Wheat and Rye Intake, and Incidence of Colorectal Cancer AU - Kyro, Cecilie AU - Olsen, Anja AU - Landberg, Rikard AU - Skeie, Guri and AU - Loft, Steffen AU - Aman, Per AU - Leenders, Max AU - Dik, Vincent K. and AU - Siersema, Peter D. AU - Pischon, Tobias AU - Christensen, Jane and AU - Overvad, Kim AU - Boutron-Ruault, Marie-Christine AU - Fagherazzi, Guy and AU - Cottet, Vanessa AU - Kuehn, Tilman AU - Chang-Claude, Jenny AU - Boeing, AU - Heiner AU - Trichopoulou, Antonia AU - Bamia, Christina AU - Trichopoulos, AU - Dimitrios AU - Palli, Domenico AU - Krogh, Vittorio AU - Tumino, Rosario AU - and Vineis, Paolo AU - Panico, Salvatore AU - Peeters, Petra H. and AU - Weiderpass, Elisabete AU - Bakken, Toril AU - Asli, Lene Angell and AU - Argueelles, Marcial AU - Jakszyn, Paula AU - Sanchez, Maria-Jose and AU - Amiano, Pilar AU - Huerta, Jose Maria AU - Barricarte, Aurelio and AU - Ljuslinder, Ingrid AU - Palmqvist, Richard AU - Khaw, Kay-Tee AU - Wareham, AU - Nick AU - Key, Timothy J. AU - Travis, Ruth C. AU - Ferrari, Pietro and AU - Freisling, Heinz AU - Jenab, Mazda AU - Gunter, Marc J. AU - Murphy, Neil AU - and Riboli, Eilo AU - Tjonneland, Anne AU - Bueno-de-Mesquita, H. B(as) JO - JNCI Journal of the National Cancer Institute PY - 2014 VL - 106 TODO - 1 SP - null PB - OXFORD UNIV PRESS INC SN - 0027-8874, 1460-2105 TODO - 10.1093/jnci/djt352 TODO - null TODO - Background Few studies have investigated the association between whole-grain intake and colorectal cancer. Because whole-grain intake estimation might be prone to measurement errors, more objective measures (eg, biomarkers) could assist in investigating such associations. Methods The association between alkylresorcinols, biomarkers of whole-grain rye and wheat intake, and colorectal cancer incidence were investigated using prediagnostic plasma samples from colorectal cancer case patients and matched control subjects nested within the European Prospective Investigation into Cancer and Nutrition. We included 1372 incident colorectal cancer case patients and 1372 individual matched control subjects and calculated the incidence rate ratios (IRRs) for overall and anatomical subsites of colorectal cancer using conditional logistic regression adjusted for potential confounders. Regional differences (Scandinavia, the Mediterranean, Central Europe) were also explored. Results High plasma total alkylresorcinol concentration was associated with lower incidence of distal colon cancer; the adjusted incidence rate ratio of distal colon cancer for the highest vs lowest quartile of plasma total alkylresorcinols was 0.48 (95% confidence interval [CI] = 0.28 to 0.83). An inverse association between plasma total alkylresorcinol concentrations and colon cancer was found for Scandinavian participants (IRR per doubling = 0.83; 95% CI = 0.70 to 0.98). However, plasma total alkylresorcinol concentrations were not associated with overall colorectal cancer, proximal colon cancer, or rectal cancer. Plasma alkylresorcinols concentrations were associated with colon and distal colon cancer only in Central Europe and Scandinavia (ie, areas where alkylresorcinol levels were higher). Conclusions High concentrations of plasma alkylresorcinols were associated with a lower incidence of distal colon cancer but not with overall colorectal cancer, proximal colon cancer, and rectal cancer. ER -