Searched for: subject:"Animals"
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Lu, Y. (author), Boekschoten, M.V. (author), Wopereis, S. (author), Müller, M. (author), Kersten, S. (author)
Comparative transcriptomic and metabolomic analysis of fenofibrate and fish oil treatments in mice. Physiol Genomics 43: 1307-1318, 2011. First published September 27, 2011; doi:10.1152/physiolgenomics.00100.2011. Elevated circulating triglycerides, which are considered a risk factor for cardiovascular disease, can be targeted by treatment with...
article 2011
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de Haan, W. (author), de Vries-van der Weij, J. (author), Mol, I.M. (author), Hoekstra, M. (author), Romijn, J.A. (author), Jukema, J.W. (author), Havekes, L.M. (author), Princen, H.M.G. (author), Rensen, P.C.N. (author), TNO Kwaliteit van Leven (author)
Pregnane X receptor (PXR) agonism has been shown to affect multiple steps in both the synthesis and catabolism of HDL, but its integrated effect on HDL metabolism in vivo remains unclear. The aim of this study was to evaluate the net effect of PXR agonism on HDL metabolism in ApoE*3-Leiden (E3L) and E3L.CETP mice, well-established models for...
article 2009
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Staal, Y.C.M. (author), Pushparajah, D.S. (author), van Herwijnen, M.H.M. (author), Gottschalk, R.W.H. (author), Maas, L.M. (author), Ioannides, C. (author), van Schooten, F.J. (author), van Delft, J.H.M. (author), TNO Kwaliteit van Leven (author)
Although exposure to polycyclic aromatic hydrocarbons (PAHs) occurs mostly through mixtures, hazard and risk assessment are mostly based on the effects caused by individual compounds. The objective of the current study was to investigate whether interactions between PAHs occur, focusing on gene expression (as measured by cDNA microarrays) and...
article 2008
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Arts, J.H.E. (author), Schijf, M.A. (author), Kuper, C.F. (author), TNO Kwaliteit van Leven (author)
Irritant-induced inflammation of the airways may aggravate respiratory allergy induced by chemical respiratory allergens. Therefore, the effect of airway irritation by synthetic amorphous silica (SAS) on respiratory allergy to trimellitic anhydride (TMA) was studied. Brown Norway (BN) rats were topically sensitized on day 0 and on day 7,...
article 2008
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van den Hoek, A.M. (author), van Heijningen, C. (author), van der Schröder - Elst, J.P. (author), Ouwens, D.M. (author), Havekes, L.M. (author), Romijn, J.A. (author), Kalsbeek, A. (author), Pijl, H. (author), TNO Kwaliteit van Leven (author)
OBJECTIVE-We recently showed that intracerebroventricular infusion of neuropeptide Y (NPY) hampers inhibition of endogenous glucose production (EGP) by insulin in mice. The down stream mechanisms responsible for these effects of NPY remain to be elucidated. Therefore, the aim of this study was to establish whether intracerebroventricular NPY...
article 2008
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Hu, L. (author), van der Hoogt, C.C. (author), Espirito Santo, S.M.S. (author), Out, R. (author), Kypreos, K.E. (author), van Vlijmen, B.J.M. (author), van Berkel, T.J.C. (author), Romijn, J.A. (author), Havekes, L.M. (author), van Dijk, K.W. (author), Rensen, P.C.N. (author), TNO Kwaliteit van Leven (author)
LPL activity plays an important role in preceding the VLDL remnant clearance via the three major apolipoprotein E (apoE)-recognizing receptors: the LDL receptor (LDLr), LDL receptor-related protein (LRP), and VLDL receptor (VLDLr). The aim of this study was to determine whether LPL activity is also important for VLDL remnant clearance...
article 2008
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de Haan, W. (author), van der Hoogt, C.C. (author), Westerterp, M. (author), Hoekstra, M. (author), Dallinga-Thie, G.M. (author), Princen, H.M.G. (author), Romijn, J.A. (author), Jukema, J.W. (author), Havekes, L.M. (author), Rensen, P.C.N. (author), TNO Kwaliteit van Leven (author)
Objective: In addition to lowering low-density lipoprotein (LDL)-cholesterol, statins modestly increase high-density lipoprotein (HDL)-cholesterol in humans and decrease cholesteryl ester transfer protein (CETP) mass and activity. Our aim was to determine whether the increase in HDL depends on CETP expression. Methods and results: APOE*3-Leiden ...
article 2008
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Stierum, R. (author), Conesa, A. (author), Heijne, W. (author), Ommen, B.v. (author), Junker, K. (author), Scott, M.P. (author), Price, R.J. (author), Meredith, C. (author), Lake, B.G. (author), Groten, J. (author), TNO Kwaliteit van Leven (author), KvL (author)
Transcriptomics was performed to gain insight into mechanisms of food additives butylated hydroxytoluene (BHT), curcumin (CC), propyl gallate (PG), and thiabendazole (TB), additives for which interactions in the liver can not be excluded. Additives were administered in diets for 28 days to Sprague-Dawley rats and cDNA microarray experiments were...
article 2008
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Nagelkerken, L. (author), Verzaal, P. (author), Lagerweij, T. (author), Persoon-Deen, C. (author), Berbee, J.F.P. (author), Prens, E.P. (author), Havekes, L.M. (author), Oranje, A.P. (author), TNO Kwaliteit van Leven (author)
Mice with transgenic expression of human apolipoprotein C1 (APOC1) in liver and skin have strongly increased serum levels of cholesterol, triglycerides, and free fatty acids, indicative of a disturbed lipid metabolism. Importantly, these mice display a disturbed skin barrier function, evident from increased transepidermal water loss, and...
article 2008
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Pols, T.W.H. (author), Ottenhoff, R. (author), Vos, M. (author), Levels, J.H.M. (author), Quax, P.H.A. (author), Meijers, J.C.M. (author), Pannekoek, H. (author), Groen, A.K. (author), de Vries, C.J.M. (author), TNO Kwaliteit van Leven (author)
NR4A nuclear receptors are induced in the liver upon fasting and regulate hepatic gluconeogenesis. Here, we studied the role of nuclear receptor Nur77 (NR4A1) in hepatic lipid metabolism. We generated mice expressing hepatic Nur77 using adenoviral vectors, and demonstrate that these mice exhibit a modulation of the plasma lipid profile and a...
article 2008
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Blum, R. (author), Kiy, T. (author), Waalkens-Berendsen, I. (author), Wong, A.W. (author), Roberts, A. (author), TNO Kwaliteit van Leven (author)
Polyunsaturated fatty acids, including docosahexaenoic acid (DHA), are natural constituents of the human diet. DHA-algal oil is produced through the use of the marine protist, Ulkenia sp. The reproductive toxicity of DHA-algal oil was assessed in a one-generation study. Rats were provided diets containing DHA-algal oil at concentrations of 1.5,...
article 2007
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van Ginneken, V. (author), Verhey, E. (author), Poelmann, R. (author), Ramakers, R. (author), van Dijk, K.W. (author), Ham, L. (author), Voshol, P. (author), Havekes, L. (author), van Eck, M. (author), van der Greef, J. (author), TNO Kwaliteit van Leven (author)
A metabolomic approach was applied to a mouse model of starvation-induced hepatic steatosis. After 24 h of fasting it appears that starvation reduced the phospholipids (PL), free cholesterol (FC), and cholesterol esters (CE) content of low-density lipoproteins (LDL). In liver lipid profiles major changes were observed using different techniques....
article 2007
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Schoonen, W.G.E.J. (author), Kloks, C.P.A.M. (author), Ploemen, J.P.H.T.M. (author), Horbach, G.J. (author), Smit, M.J. (author), Zandberg, P. (author), Mellema, J.R. (author), van Zuylen, C.T. (author), Tas, A.C. (author), van Nesselrooij, J.H.J. (author), Vogels, J.T.W.E. (author), TNO Kwaliteit van Leven (author)
1H nuclear magnetic resonance (NMR) spectroscopy of rat urine in combination with pattern recognition analysis was evaluated for early noninvasive detection of toxicity of investigational chemical entities. Bromobenzene (B) and paracetamol (P) were administered at five single oral dosages between 2 and 500 mg/kg and between 6 and 1800 mg/kg,...
article 2007
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Schoonen, W.G.E.J. (author), Kloks, C.P.A.M. (author), Ploemen, J.-P.H.T.M. (author), Smit, M.J. (author), Zandberg, P. (author), Horbach, G.J. (author), Mellema, J.-R. (author), van Zuylen, C.T. (author), Tas, A.C. (author), van Nesselrooij, J.H.J. (author), Vogels, J.T.W.E. (author), TNO Kwaliteit van Leven (author)
A procedure of nuclear magnetic resonance (NMR) urinalysis using pattern recognition is proposed for early detection of toxicity of investigational compounds in rats. The method is applied to detect toxicity upon administration of 13 toxic reference compounds and one nontoxic control compound (mianserine) in rats. The toxic compounds are...
article 2007
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Hendriksen, P.J.M. (author), Freidig, A.P. (author), Jonker, D. (author), Thissen, U. (author), Bogaards, J.J.P. (author), Mumtaz, M.M. (author), Groten, J.P. (author), Stierum, R.H. (author), TNO Kwaliteit van Leven (author)
The present research aimed to study the interaction of three chemicals, methyl mercury, benzene and trichloroethylene, on mRNA expression alterations in rat liver and kidney measured by microarray analysis. These compounds were selected based on presumed different modes of action. The chemicals were administered daily for 14 days at the Lowest...
article 2007
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Vis, D.J. (author), Westerhuis, J.A. (author), Smilde, A.K. (author), van der Greef, J. (author), TNO Kwaliteit van Leven (author)
Background: Innovative extensions of (M) ANOVA gain common ground for the analysis of designed metabolomics experiments. ASCA is such a multivariate analysis method; it has successfully estimated effects in megavariate metabolomics data from biological experiments. However, rigorous statistical validation of megavariate effects is still...
article 2007
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Korsheninnikova, E. (author), Voshol, P.J. (author), Baan, B. (author), van der Zon, G.C.M. (author), Havekes, L.M. (author), Romijn, J.A. (author), Maassen, J.A. (author), Ouwens, D.M. (author), TNO Kwaliteit van Leven (author)
Insulin is an important regulator of hepatic carbohydrate, lipid, and protein metabolism, and the regulation of these processes by insulin is disturbed under conditions of insulin resistance and type 2 diabetes. Despite these alterations, the impact of insulin resistance on insulin signalling in the liver is not well defined. Variations in time...
article 2007
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Kleemann, R. (author), Verschuren, L. (author), van Erk, M.J. (author), Nikolsky, Y. (author), Cnubben, N.H.P. (author), Verheij, E.R. (author), Smilde, A.K. (author), Hendriks, H.F.J. (author), Zadelaar, A.S.M. (author), Smith, G.J. (author), Kaznacheev, V. (author), Nikolskaya, T. (author), Melnikov, A. (author), Hurt-Camejo, E. (author), van der Greef, J. (author), van Ommen, B. (author), Kooistra, T. (author), TNO Kwaliteit van Leven (author)
Background: Increased dietary cholesterol intake is associated with atherosclerosis. Atherosclerosis development requires a lipid and an inflammatory component. It is unclear where and how the inflammatory component develops. To assess the role of the liver in the evolution of inflammation, we treated ApoE* 3Leiden mice with cholesterol-free ...
article 2007
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Kienhuis, A.S. (author), Wortelboer, H.M. (author), Hoflack, J.C. (author), Moonen, E.J. (author), Kleinjans, J.C.S. (author), van Ommen, B. (author), van Delft, J.H.M. (author), Stierum, R.H. (author), TNO Kwaliteit van Leven (author)
Sandwich-cultured primary rat hepatocytes are often used as an in vitro model in toxicology and pharmacology. However, loss of liver-specific functions, in particular, the decline of cytochrome P450 (P450) enzyme activity, limits the value of this model for prediction of in vivo toxicity. In this study, we investigated whether a hepatic in vitro...
article 2006
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Duivenvoorden, I. (author), Voshol, P.J. (author), Rensen, P.C.N. (author), van Duyvenvoorde, W. (author), Romijn, J.A. (author), Emeis, J.J. (author), Havekes, L.M. (author), Nieuwenhuizen, W.F. (author), TNO Kwaliteit van Leven (author)
Background: The prevalence of dyslipidemia and obesity resulting from excess energy intake and physical inactivity is increasing. The liver plays a pivotal role in systemic lipid homeostasis. Effective, natural dietary interventions that lower plasma lipids and promote liver health are needed. Objective: Our goal was to determine the effect of...
article 2006
Searched for: subject:"Animals"
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