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de Vogel, S. (author), Wouters, K.A.D. (author), Gottschalk, R.W.H. (author), van Schooten, F.J. (author), de Goeij, A.F.P.M. (author), de Bruïne, A.P. (author), Goldbohm, R.A. (author), van den Brandt, P.A. (author), van Engeland, M. (author), Weijenberg, M.P. (author)Dietary methyl donors might influence DNA methylation during carcinogenesis of colorectal cancer (CRC). Among 609 CRC cases and 1,663 subcohort members of the Netherlands Cohort Study on diet and cancer (n = 120,852), we estimated CRC risk according to methyl donor intake across genotypes of folate metabolizing enzymes and methyltransferases....article 2011
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Henneman, P. (author), van der Sman-de Beer, F. (author), Moghaddam, P.H. (author), Huijts, P. (author), Stalenhoef, A.F.H. (author), Kastelein, J.J.P. (author), van Duijn, C.M. (author), Havekes, L.M. (author), Frants, R.R. (author), van Dijk, K.W. (author), Smelt, A.H.M. (author), TNO Kwaliteit van Leven (author)Type III hyperlipoproteinemia (HLP) is mainly found in homozygous apolipoprotein (APO) E2 (R158C) carriers. Genetic factors contributing to the expression of type III HLP were investigated in 113 hyper- and 52 normolipidemic E2/2 subjects, by testing for polymorphisms in APOC3, APOA5, HL (hepatic lipase) and LPL (lipoprotein lipase) genes. In...article 2009
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TNO Kwaliteit van Leven (author), van Dijk, B.A.C. (author), Schouten, L.J. (author), Oosterwijk, E. (author), Hulsbergen van de, (author), Kaa, C.A. (author), Kiemeney, L.A.L.M. (author), Goldbohm, R.A. (author), Schalken, J.A. (author), van den Brandt, P.A. (author)We investigated whether smoking is associated with mutations in the Von Hippel-Lindau (VHL) gene in 337 cases of sporadic renal cell carcinoma (RCC) among 120 852 people followed for 11.3 years; the findings suggest that smoking causes RCC independently of VHL gene mutations. © 2006 Cancer Research. Chemicals / CAS: adenine, 22177-51-1, 2922-28...article 2006
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Lou, X. (author), van Buijtenen, J. (author), Bastiaansen, J.J.A.M. (author), de Waal, B.F.M. (author), Langeveld, B.M.W. (author), van Dongen, J.L.J. (author), TNO Industrie en Techniek (author)Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) was applied to the analysis of Ru(OCOCF 3)2(CO)(PPh3)2, Ru(OCOC 3F7)2(CO)(PPh3)2, Ir(tBuppy)3 and Ir(ppy)2(acac) complexes. A troublesome problem in the MALDI-TOFMS characterization of these metal complexes is the possible replacement of complex ligands by...article 2005
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Brink, M. (author), Weijenberg, M.P. (author), de Goeij, A.F.P.M. (author), Schouten, L.J. (author), Koedijk, F.D.H. (author), Roemen, G.M.J.M. (author), Lentjes, M.H.F.M. (author), de Bruïne, A.P. (author), Goldbohm, R.A. (author), van den Brandt, P.A. (author), TNO Voeding (author)Associations between dietary intake of various fats and specific K-ras mutations in colorectal cancer (CRC) were investigated within the framework of The Netherlands Cohort Study on diet and cancer (NLCS). After 7.3 years of follow-up and with exclusion of the first 2.3 years, 448 colon and 160 rectal cancer patients and 2948 subcohort members ...article 2004
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Brink, M. (author), de Goeij, A.F.P.M. (author), Weijenberg, M.P. (author), Roemen, G.M.J.M. (author), Lentjes, M.H.F.M. (author), Pachen, M.M.M. (author), Smits, K.M. (author), de Bruïne, A.P. (author), Goldbohm, R.A. (author), van den Brandt, P.A. (author)Activation of K-ras oncogene has been implicated in colorectal carcinogenesis, being mutated in 30-60% of the adenocarcinomas. In this study, 737 incident colorectal cancer (CRC) patients, originating from 120 852 men and women (55-69 years at baseline) participating in the Netherlands Cohort Study (NLCS), were studied in order to evaluate...article 2003
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TNO Preventie en Gezondheid (author), Bayley, J.P. (author), Bakker, A.M. (author), Kaijzel, E.L. (author), Huizinga, T.W.J. (author), Verweij, C.L. (author)Objective. To assess the role of polymorphisms of the tumour necrosis factor (TNF) receptors, TNF-RI (p55) and TNF-RII (p75) in the susceptibility to and severity of rheumatoid arthritis (RA) in Dutch patients. Methods. A total of 319 consecutive RA patients, and a cohort of 90 female RA patients with detailed 12-yr follow-up were genotyped for...article 2003
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Vink, A.A. (author), Bergen Henegouwen, J.B.A. (author), Nikaido, O. (author), Baan, R.A. (author), Roza, L. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Induction and removal of cyclobutane thymine dimers and (6-4)photoproducts were studied in epidermal DNA isolated from UV-exposed hairless mice. For the detection of DNA damage, lesion-specific monoclonal antibodies were used in an immunoslotblot assay. Following the exposure of mice to 3.0 kJ m-2 UV-B, substantial removal of both thymine dimers...article 1994
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Vink, A.A. (author), Berg, R.J.W. (author), de Gruijl, F.R. (author), Lohman, P.H.M. (author), Roza, L. (author), Baan, R.A. (author), Centraal Instituut voor Voedingsonderzoek TNO Medisch Biologisch Laboratorium TNO (author)An immunocytochemical method was developed to study induction and removal of DNA damage in specific cell populations in the epidermis of hairless mice during chronic ultraviolet (UV) exposure. Identification of mouse suprabasal cells was performed with an immunoperoxidase stain. This stain was shown not to affect the fluorescent nuclear stains,...article 1993
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Medisch Biologisch Laboratorium TNO (author), Roza, L. (author), Vermeulen, W. (author), Bergen Henegouwen, J.B.A. (author), Eker, A.P.M. (author), Jaspers, N.G.J. (author), Lohman, P.H.M. (author), Hoeijmakers, J.H.J. (author)UV-induced thymine dimers (10 J/m2 of UV-C) were assayed in normal human and xeroderma pigmentosum (XP) fibroblasts with a monoclonal antibody against these dimers and quantitative fluorescence microscopy. In repair-proficient cells dimer-specific immunofluorescence gradually decreased with time, reaching about 25% of the initial fluorescence...article 1990