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Hawinkels, L.J.A.C. (author), Verspaget, H.W. (author), van der Reijden, J.J. (author), van der Zon, J.M. (author), Verheijen, J.H. (author), Hommes, D.W. (author), Lamers, C.B.H.W. (author), Sier, C.F.M. (author), TNO Kwaliteit van Leven (author)Transforming growth factor-β1 (TGF-β1), a cytokine involved in various stages of cancer, is produced as a latent complex and requires processing to become active. We have determined total and active TGF-β1 levels in homogenates of colorectal neoplasia. In contrast to total TGF-β levels, showing a stepwise increase in the mucosa-adenoma-carcinoma...article 2009
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Cho, E. (author), Smith-Warner, S.A. (author), Spiegelman, D. (author), Beeson, W.L. (author), van den Brandt, P.A. (author), Colditz, G.A. (author), Folsom, A.R. (author), Fraser, G.E. (author), Freudenheim, J.L. (author), Giovannucci, E. (author), Goldbohm, R.A. (author), Graham, S. (author), Miller, A.B. (author), Pietinen, P. (author), Potter, J.D. (author), Rohan, T.E. (author), Terry, P. (author), Toniolo, P. (author), Virtanen, M.J. (author), Willet, W.C. (author), Wolk, A. (author), Wu, K. (author), Yaun, S.-S. (author), Zeleniuch-Jacquotte, A. (author), Hunter, D.J. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)Background: Studies in animals have suggested that calcium may reduce the risk of colorectal cancer. However, results from epidemiologic studies of intake of calcium or dairy foods and colorectal cancer risk have been inconclusive. Methods: We pooled the primary data from 10 cohort studies in five countries that assessed usual dietary intake by...article 2004
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Feron, V.J. (author), Kittel, B. (author), Kuper, C.F. (author), Ernst, H. (author), Rittinghausen, S. (author), Muhle, H. (author), Koch, W. (author), Gamer, A. (author), Mallett, A.K. (author), Hoffmann, H.D. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)Two independent bioassays are available which have examined the potential carcinogenicity of monomeric and polymeric methylene diphenyl diisocyanate (MDI) following long-term inhalation exposure in rats. These studies are not directly comparable, however, due to differences in design and conduct of the in-life phase, and differences in...article 2001
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Rijnkels, J.M. (author), Hollanders, V.M.H. (author), Woutersen, R.A. (author), Koeman, J.H. (author), Alink, G.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)The potential inhibitory effects of a vegetables-fruit mixture on the initiation and promotion phases of azoxymethane-induced colorectal carcinogenesis were examined in rats fed low- or high-fat diets. Rats were fed low-fat diets (20 energy percent, Diets A and B) or high-fat diets (40 energy percent, Diets C and D), supplemented with a...article 1998
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TNO Voeding (author), Meijers, M. (author), Appel, M.J. (author), van Garderen-Hoetmer, A. (author), Lamers, C.B.H.W. (author), Rovati, L.C. (author), Jansen, J.B.M.J. (author), Woutersen, R.A. (author)Cholecystokinin and bombesin have been shown to promote pancreatic growth and development of azaserine-induced acidophilic atypical acinar cell nodules in rat pancreas after treatment for 16 weeks. Lorglumide, a specific cholescystokinin receptor antagonist, inhibited the stimulating effect of cholecystokinin, but not of bombesin. The present...article 1992
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Instituut voor Verouderings- en Vaatziekten Onderzoek TNO (author), Gijbels, M.J.J. (author), Visser, J.W.M. (author), Solleveld, H.A. (author), Broerse, J.J. (author), Zurcher, C. (author)Archival paraffin embedded material was used to examine whether additional quantitative criteria would be helpful to discriminate between histologically benign and malignant rat mammary tumours. To this end nuclear DNA content expressed as DNA ploidy index (DI) was measured using flow cytometry (FCM). A total of 63 benign and malignant mammary...article 1991
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Centraal Instituut voor Voedingsonderzoek TNO (author), Beems, R.B. (author), van Beek, L. (author)Chemicals/CAS: benzo[a]pyrene, 50-32-8; Benzo(a)pyrene, 50-32-8; Benzopyrenes; Carcinogens; Dietary Fats; Fatty Acids, Unsaturated.article 1984