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Crone, M.R. (author), Spronsen, F.J. (author), Oudshoorn, K. (author), Bekhof, J. (author), van Rijn, G. (author), Verkerk, P.H. (author), TNO Preventie en Gezondheid (author)Background. The objective of this study was to determine the importance of parental factors possibly related to dietary control in early and continuously treated patients with phenylketonuria (PKU). Methods. A questionnaire was disseminated among parents of 238 patients with PKU born after the nationwide introduction of newborn screening for PKU...article 2005
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Weenen, H. (author), Jellema, R.H. (author), de Wijk, R.A. (author), TNO Kwaliteit van Leven (author)The sensory components of creamy mouthfeel in commercial mayonnaises, custard desserts and sauces were determined, using multi-variate analysis of the mean sensory ratings obtained from a quantitative descriptive analysis (QDA) panel. Creamy is a particularly interesting attribute, as it is generally well correlated with consumer preference....article 2005
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Jansen, J.J. (author), Hoefsloot, H.C.J. (author), van der Greef, J. (author), Timmerman, M.E. (author), Smilde, A.K. (author), TNO Kwaliteit van Leven (author)Genomics-based technologies in systems biology have gained a lot of popularity in recent years. These technologies generate large amounts of data. To obtain information from this data, multivariate data analysis methods are required. Many of the datasets generated in genomics are multilevel datasets, in which the variation occurs on different...article 2005
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Verhoeckx, K.C.M. (author), Gaspari, M. (author), Bijlsma, S. (author), van der Greef, J. (author), Witkamp, R.F. (author), Doornbos, R.P. (author), Rodenburg, R.J.T. (author), TNO Kwaliteit van Leven (author)Two-dimensional difference gel electrophoresis (DIGE) in combination with univariate (Student's t-test) and multivariate data analysis, principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) were used to study the anti-inflammatory effects of the β2-adrenergic receptor (β2-AR) agonist zilpaterol. U937...article 2005
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van Mispelaar, V.G. (author), Smilde, A.K. (author), de Noord, O.E. (author), Blomberg, J. (author), Schoenmakers, P.J. (author), TNO Kwaliteit van Leven (author)Comprehensive two-dimensional gas chromatography (GC × GC) has proven to be an extremely powerful separation technique for the analysis of complex volatile mixtures. This separation power can be used to discriminate between highly similar samples. In this article we will describe the use of GC × GC for the discrimination of crude oils from...article 2005
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Lamers, R.J.A.N. (author), van Nesselrooij, J.H.J. (author), Kraus, V.B. (author), Jordan, J.M. (author), Renner, J.B. (author), Dragomir, A.D. (author), Luta, G. (author), van der Greef, J. (author), de Groot, J. (author), TNO Kwaliteit van Leven (author)Objective: Osteoarthritis (OA) is one of the most common diseases among the elderly. The main characteristic is the progressive destruction of articular cartilage. We lack quantitative and sensitive biomarkers for OA to detect changes in the joints in an early stage of the disease. In this study, we investigated whether a urinary metabolite...article 2005
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Kalanda, B.F. (author), van Buuren, S. (author), Verhoeff, F.H. (author), Brabin, B.J. (author), TNO Kwaliteit van Leven (author)Introduction: Infant growth has not been studied in developing countries in relation to maternal factors related to malaria in pregnancy and maternal illiteracy. Objective: To describe growth patterns in infants with low and normal birthweight and determine maternal risk factors for infant undernutrition. Methods: Babies born in a rural district...article 2005
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Steenstra, I.A. (author), Koopman, F.S. (author), Knol, D.L. (author), Kat, E. (author), Bongers, P.M. (author), de Vet, H.C.W. (author), van Mechelen, W. (author), TNO Kwaliteit van Leven (author)Information on prognostic factors for duration of sick leave due to low-back pain (LBP) is growing. In this prospective cohort study, prognostic factors for duration of sick leave and course of disability were identified at a very early stage of sick leave due to LBP. A total of 615 workers calling in sick from work due to LBP at an occupational...article 2005
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Smilde, A.K. (author), Jansen, J.J. (author), Hoefsloot, H.C.J. (author), Lamers, R.J.A.N. (author), van der Greef, J. (author), Timmerman, M.E. (author), TNO Kwaliteit van Leven (author)Motivation: Datasets resulting from metabolomics or metabolic profiling experiments are becoming increasingly complex. Such datasets may contain underlying factors, such as time (time-resolved or longitudinal measurements), doses or combinations thereof. Currently used biostatistics methods do not take the structure of such complex datasets into...article 2005
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Koushik, A. (author), Hunter, D.J. (author), Spiegelman, D. (author), Anderson, K.E. (author), Arslan, A.A. (author), Beeson, W.L. (author), van den Brandt, P.A. (author), Buring, J.E. (author), Cerhan, J.R. (author), Colditz, G.A. (author), Fraser, G.E. (author), Freudenheim, J.L. (author), Genkinger, J.M. (author), Goldbohm, R.A. (author), Hankinson, S.E. (author), Koenig, K.L. (author), Larsson, S.C. (author), Leitzmann, M. (author), McCullough, M.L. (author), Miller, A.B. (author), Patel, A. (author), Rohan, T.E. (author), Schatzkin, A. (author), Smit, E. (author), Willett, W.C. (author), Wolk, A. (author), Zhang, S.M. (author), Smith-Warner, S.A. (author), TNO Kwaliteit van Leven (author)Because fruits and vegetables are rich in bioactive compounds with potential cancer-preventive actions, increased consumption may reduce the risk of ovarian cancer. Evidence on the association between fruit and vegetable intake and ovarian cancer risk has not been consistent. We analyzed and pooled the primary data from 12 prospective studies in...article 2005
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van Rhenen, W. (author), Blonk, R.W.B. (author), van der Klink, J.J. (author), van Dijk, F.J. (author), Schaufeli, W.B. (author), TNO Kwaliteit van Leven (author)Objectives: To investigate the short-term and long-term effectiveness of two, brief, preventive, work stress management programmes. One programme was a cognition-focused programme, the other was a newly developed intervention in which physical exercise and relaxation were combined. It was hypothesised that the newly developed intervention would...article 2005
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de Smet, P. (author), Sans, S. (author), Dramaix, M. (author), Boulenguez, C. (author), de Backer, G. (author), Ferrario, M. (author), Cesana, G. (author), Houtman, I. (author), Isacsson, S.O. (author), Kittel, F. (author), Ostergren, P.O. (author), Peres, I. (author), Pelfrene, E. (author), Romon, M. (author), Rosengren, A. (author), Wilhelmsen, L. (author), Kornitzer, M. (author), TNO Kwaliteit van Leven (author)Background: Over the last 20 years stress at work has been found to be predictive of several conditions such as coronary heart disease, high blood pressure and non-specific sick leave. The Karasek demand/ control/strain concept has been the most widely used in prospective epidemiological studies. Objectives: To describe distribution in Karasek's...article 2005
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Euser, A.M. (author), Finken, M.J.J. (author), Keijzer-Veen, M.G. (author), Hille, E.T.M. (author), Wit, J.M. (author), Dekker, F.W. (author)Background: Increasing evidence indicates that adult body composition is associated with prenatal and infancy weight gain, but the relative importance of different time periods has not been elucidated. Objective: The objective was to study the association between prenatal, early postnatal, and late infancy weight gain and body mass index (BMI),...article 2005
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Monraats, P.S. (author), Pires, N.M.M. (author), Schepers, A. (author), Agema, W.R.P. (author), Boesten, L.S.M. (author), de Vries, M.R. (author), Zwinderman, A.H. (author), de Maat, M.P.M. (author), Doevendans, P.A.F.M. (author), de Winter, R.J. (author), Tio, R.A. (author), Waltenberger, J. (author), 't Hart, L.M. (author), Frants, R.R. (author), Quax, P.H.A. (author), van Vlijmen, B.J.M. (author), Havekes, L.M. (author), van der Laarse, A. (author), van der Wall, E.E. (author), Jukema, J.W. (author), TNO Kwaliteit van Leven (author)Genetic factors appear to be important in the restenotic process after percutaneous coronary intervention (PCI), as well as in inflammation, a pivotal factor in restenosis. TNFα, a key regulator of inflammatory responses, may exert critical influence on the development of restenosis after PCI. The GENetic DEterminants of Restenosis (GENDER)...article 2005
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Dhonukshe-Rutten, R.A.M. (author), van Dusseldorp, M. (author), Schneede, J. (author), de Groot, L.C.P.G.M. (author), van Staveren, W.A. (author), TNO Kwaliteit van Leven (author)Background: Cobalamin deficiency is prevalent in vegetarians and has been associated with increased risk of osteoporosis. Aim of the study: To examine the association between cobalamin status and bone mineral density in adolescents formerly fed a macrobiotic diet and in their counterparts. Methods: In this cross-sectional study bone mineral...article 2005
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Clish, C.B. (author), Davidov, E. (author), Oresic, M. (author), Plasterer, T.N. (author), Lavine, G. (author), Londo, T. (author), Meys, M. (author), Snell, P. (author), Stochaj, W. (author), Adourian, A. (author), Zhang, X. (author), Morel, N. (author), Neumann, E. (author), Verheij, E. (author), Vogels, J.T.W.E. (author), Havekes, L.M. (author), Afeyan, N. (author), Regnier, F. (author), van der Greef, J. (author), Naylor, S. (author), TNO Preventie en Gezondheid (author)Integrative (or systems biology) is a new approach to analyzing biological entities as integrated systems of genetic, genomic, protein, metabolite, cellular, and pathway events that are in flux and interdependent. Here, we demonstrate the application of intregrative biological analysis to a mammalian disease model, the apolipoprotein E3-Leiden ...article 2004
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Schouten, L.J. (author), Goldbohm, R.A. (author), van den Brandt, P.A. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)Although obesity is an established risk factor for endometrial cancer, evidence linking risk to height, weight change since age 20, and physical activity is limited. In this case-cohort study, 62 573 women from The Netherlands Cohort Study on Diet and Cancer were followed up from 1986 to 1995, and 226 endometrial cancer case patients were...article 2004
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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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Beckers, D.G.J. (author), van der Linden, D. (author), Smulders, P.G.W. (author), Kompier, M.A.J. (author), van Veldhoven, M.J.P.M. (author), van Yperen, N.W. (author), TNO Arbeid (author)Objectives: We sought to better understand the relationship between overtime and mental fatigue by taking into account work motivation and the quality of overtime work and studying theoretically derived subgroups. Methods: We conducted a survey-study among a representative sample of the Dutch full-time workforce (n = 1807). The prevalence of...article 2004
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Davidov, E. (author), Clish, C.B. (author), Oresic, M. (author), Meys, M. (author), Stochaj, W. (author), Snell, P. (author), Lavine, G. (author), Londo, T.R. (author), Adourian, A. (author), Zhang, X. (author), Johnston, M. (author), Morel, N. (author), Marple, E.W. (author), Plasterer, T.N. (author), Neumann, E. (author), Verheij, E. (author), Vogels, J.T.W.E. (author), Havekes, L.M. (author), van der Greef, J. (author), Naylor, S. (author), TNO Preventie en Gezondheid (author)Multitiered quantitative analysis of biological systems is rapidly becoming the desired approach to study hierarchical functional interactions between proteins and metabolites. We describe here a novel systematic approach to analyze organisms with complex metabolic regulatory networks. By using precise analytical methods to measure biochemical...article 2004