The association between diet and serum concentrations of IGF-I, IGFBP-1, IGFBP-2, and IGFBP-3 in the European prospective investigation into cancer and nutrition

Francesca L. Crowe, Timothy J. Key, Naomi E. Allen, Paul N. Appleby, Andrew Roddam, Kim Overvad, Henning Grønbæk, Anne Tjønneland, Jutte Halkjær, Laure Dossus, Heiner Boeing, Janine Kröger, Antonia Trichopoulou, Vardis Dilis, Dimitrios Trichopoulos, Marie Christine Boutron-Ruault, Blandine De Lauzon, Françoise Clavel-Chapelon, Domenico Palli, Franco BerrinoSalvatore Panico, Rosario Tumino, Carlotta Sacerdote, H. Bas Bueno-de-Mesquita, Alina Vrieling, Carla H. Van Gils, Petra H.M. Peeters, Inger T. Gram, Guri Skeie, Eiliv Lund, Laudina Rodríguez, Paula Jakszyn, Esther Molina-Montes, María J. Tormo, Aurelio Barricarte, Nerea Larrañaga, Kay Tee Khaw, Sheila Bingham, Sabina Rinaldi, Nadia Slimani, Teresa Norat, Valentina Gallo, Elio Riboli, Rudolf Kaaks

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Resum

Circulating concentrations of insulin-like growth factor I (IGF-I) and IGF binding proteins (IGFBP) have been associated with the risk of several types of cancer. Dietary correlates of IGF-I and IGFBPs are not yet well established. The objective of this study was to assess the association between dietary intake and serum concentrations of IGF-I, IGFBP-1, IGFBP-2, and IGFBP-3 in a cross-sectional analysis of 4,731 men and women taking part in the European Prospective Investigation into Cancer and Nutrition. Diet was assessed using country-specific validated dietary questionnaires. Serum concentrations of IGF-I, IGFBP-1, IGFBP-2 and IGFBP-3 were measured, and the associations between diet and IGF-I and IGFBPs were assessed using multiple linear regression adjusting for sex, age, body mass index, smoking status, and alcohol and energy intake. Each 1 SD increment increase in total and dairy protein and calcium intake was associated with an increase in IGF-I concentration of 2.5%, 2.4%, and 3.3%, respectively (P for trend <0.001 for all) and a decrease in IGFBP-2 of 3.5%, 3.5%, and 5.4% (P for trend <0.001 for all), respectively. There were no significant associations between the intake of protein or calcium from nondairy sources and IGF-I. The results from this large cross-sectional analysis show that either the intake of dairy protein or calcium is an important dietary determinant of IGF-I and IGFBP-2 concentrations; however, we suggest that it is more likely to be protein from dairy products.

Idioma originalAnglès
Pàgines (de-a)1333-1340
Nombre de pàgines8
RevistaCancer Epidemiology Biomarkers and Prevention
Volum18
Número5
DOIs
Estat de la publicacióPublicada - de maig 2009
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