Searched for: subject%3A%22Metabolic%255C%2Bregulation%22
(1 - 17 of 17)
document
Sullivan-Kwantes, W. (author), Haman, F. (author), Kingma, B.R.M. (author), Martini, S. (author), Gautier-Wong, E. (author), Chen, K.Y. (author), Friedl, K.E. (author)
Objectives. Soldier performance in the Arctic depends on planning and training, protective equipment, and human physiological limits. The purpose of this review was to highlight the span of current research on enhancing soldier effectiveness in extreme cold and austere environments. Methods. The practices of seasoned soldiers who train in the...
article 2020
document
Wopereis, S. (author), Stroeve, J.H.M. (author), Stafleu, A. (author), Bakker, G.C.M. (author), Burggraaf, J. (author), van Erk, M.J. (author), Pellis, L. (author), Boessen, R. (author), Kardinaal, A.A.F. (author), van Ommen, B. (author)
Background: A key feature of metabolic health is the ability to adapt upon dietary perturbations. Recently, it was shown that metabolic challenge tests in combination with the new generation biomarkers allow the simultaneous quantification of major metabolic health processes. Currently, applied challenge tests are largely non-standardized. A...
article 2017
document
Derous, D. (author), Kelder, T. (author), van Schothorst, E.M. (author), van Erk, M. (author), Voigt, A. (author), Klaus, S. (author), Keijer, J. (author), Radonjic, M. (author)
Health is influenced by interplay of molecular, physiological and environmental factors. To effectively maintain health and prevent disease, health-relevant relations need to be understood at multiple levels of biological complexity. Network-based methods provide a powerful platform for integration and mining of data and knowledge characterizing...
article 2015
document
Saccenti, E. (author), Tenori, L. (author), Verbruggen, P. (author), Timmerman, M.E. (author), Bouwman, J. (author), van der Greef, J. (author), Luchinat, C. (author), Smilde, A.K. (author)
Background: Metabolomics has attracted the interest of the medical community for its potential in predicting early derangements from a healthy to a diseased metabolic phenotype. One key issue is the diversity observed in metabolic profiles of different healthy individuals, commonly attributed to the variation of intrinsic (such as (epi)genetic...
article 2014
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van Eunen, K. (author), Rossell, S. (author), Bouwman, J. (author), Westerhoff, H.V. (author), Bakker, B.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Regulation analysis is a methodology that quantifies to what extent a change in the flux through a metabolic pathway is regulated by either gene expression or metabolism. Two extensions to regulation analysis were developed over the past years: (i) the regulation of Vmax can be dissected into the various levels of the gene-expression cascade,...
conference paper 2011
document
van Spronsen, F.J. (author), Rijn, M. (author), Dorgelo, B. (author), Hoeksma, M. (author), Bosch, A.M. (author), Mulder, M.F. (author), de Klerk, J.B.C. (author), de Koning, T. (author), Rubio-Gozalbo, M.E. (author), de Vries, M. (author), Verkerk, P.H. (author)
Background: The clinical severity of phenylalanine hydroxylase deficiency is usually defined by either pre-treatment phenylalanine (Phe) concentration or Phe tolerance at 5 years of age. So far, little is known about the course of Phe tolerance or the ability of both pre-treatment Phe and Phe tolerance at early age to predict Phe tolerance at...
article 2009
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TNO Kwaliteit van Leven (author), van Ommen, B. (author), Keijer, J. (author), Kleemann, R. (author), Elliott, R. (author), Drevon, C.A. (author), McArdle, H. (author), Gibney, M. (author), Müller, M. (author)
In quantifying the beneficial effect of dietary interventions in healthy subjects, nutrition research meets a number of new challenges. Inter individual variation in biomarker values often is larger than the effect related to the intervention. Healthy subjects have a remarkable capacity to maintain homeostasis, both through direct metabolic...
article 2008
document
van der Werf, M.J. (author), Pieterse, B. (author), van Luijk, N. (author), Schuren, F. (author), van der Werff van der - Vat, B. (author), Overkamp, K. (author), Jellema, R.H. (author), TNO Kwaliteit van Leven (author)
The value of the multivariate data analysis tools principal component analysis (PCA) and principal component discriminant analysis (PCDA) for prioritizing leads generated by microarrays was evaluated. To this end, Pseudomonas putida S12 was grown in independent triplicate fermentations on four different carbon sources, i.e. fructose, glucose,...
article 2006
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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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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
document
van Ommen, B. (author), de Bie, A.T.H.J. (author), Bär, A. (author), TNO Voeding (author)
The absorption, disposition, metabolism, and excretion of uniformly 14C-labeled α-cyclodextrin (14C-α-CD) was examined in four separate experiments with Wistar rats. In Experiment 1, 14C-α-CD (25μCi, 50mg/kg bw) was administered intravenously to four male and four female conventional rats. In Experiment 2, 14C-α-CD (25μCi, 200mg/kg bw) was given...
article 2004
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Jansen, J.J. (author), Hoefsloot, H.C.J. (author), Boelens, H.F.M. (author), van der Greef, J. (author), Smilde, A.K. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)
Motivation: Metabolomics datasets are generally large and complex. Using principal component analysis (PCA), a simplified view of the variation in the data is obtained. The PCA model can be interpreted and the processes underlying the variation in the data can be analysed. In metabolomics, often a priori information is present about the data....
article 2004
document
TNO Preventie en Gezondheid (author), Raamsdonk, L.M. (author), Teusink, B. (author), Broadhurst, D. (author), Zhang, N. (author), Hayes, A. (author), Walsh, M.C. (author), Berden, J.A. (author), Brindle, K.M. (author), Kell, D.B. (author), Rowland, J.J. (author), Westerhoff, H.V. (author), van Dam, K. (author), Oliver, S.G. (author)
A large proportion of the 6,000 genes present in the genome of Saccharomyces cerevisiae, and of those sequenced in other organisms, encode proteins of unknown function. Many of these genes are "silent," that is, they show no overt phenotype, in terms of growth rate or other fluxes, when they are deleted from the genome. We demonstrate how the...
article 2001
document
Gaubius Instituut TNO (author), Teusink, B. (author), Passarge, J. (author), Reijenga, C.A. (author), Esgalhado, E. (author), van der Weijden, C.C. (author), Schepper, M. (author), Walsh, M.C. (author), Bakker, B.M. (author), van Dam, K. (author), Westerhoff, H.V. (author), Snoep, J.L. (author)
This paper examines whether the in vivo behavior of yeast glycolysis can be understood in terms of the in vitro kinetic properties of the constituent enzymes. In nongrowing, anaerobic, compressed Saccharomyces cerevisiae the values of the kinetic parameters of most glycolytic enzymes were determined. For the other enzymes appropriate literature...
article 2000
document
TNO Preventie en Gezondheid (author), Teusink, B. (author), Westerhoff, H.V. (author)
Although control of fluxes and concentrations tends to be distributed rather than confined to a single rate-limiting enzyme, the extent of control can differ widely between enzymes in a metabolic network. In some cases, there are enzymes that lack control completely. This paper identifies one surprising origin of such lack of control: If, in a...
article 2000
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Brussaard, H.E. (author), Leuven, J.A.G. (author), Kluft, C. (author), Krans, H.M.J. (author), van Duyvenvoorde, W. (author), Buytenhek, R. (author), van der Laarse, A. (author), Princen, H.M.G. (author), TNO Preventie en Gezondheid (author)
In type II diabetes mellitus the altered hormonal state after menopause may represent an additional cardiovascular risk factor. Estrogen replacement therapy (ERT) is associated with a decreased cardiovascular risk, at least in nondiabetic post-menopausal women. We studied the effect of ERT on plasma lipids and lipoproteins and on LDL oxidation...
article 1997
document
Gaubius Instituut TNO (author), Princen, H.M.G. (author), Meijer, P. (author), Hofstee, B. (author)
To study the effect of steroid hormones on bile acid synthesis by cultured rat hepatocytes, cells were incubated with various amounts of these compounds during 72 h and conversion of [4-14C]cholesterol into bile acids was measured. Bile acid synthesis was stimulated in a dose-dependent way by glucocorticoids, but not by sex steroid hormones,...
article 1989
Searched for: subject%3A%22Metabolic%255C%2Bregulation%22
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