- document
-
Westerterp, M. (author), van der Hoogt, C.C. (author), de Haan, W. (author), Offerman, E.H. (author), Dallinga-Thie, G.M. (author), Jukema, J.W. (author), Havekes, L.M. (author), Rensen, P.C.N. (author), TNO Kwaliteit van Leven (author)OBJECTIVE - The role of cholesteryl ester transfer protein (CETP) in the development of atherosclerosis is still undergoing debate. Therefore, we evaluated the effect of human CETP expression on atherosclerosis in APOE*3-Leiden (E3L) mice with a humanized lipoprotein profile. METHODS AND RESULTS - E3L mice were crossbred with human CETP...article 2006
- document
-
Jenniskens, Y.M. (author), Koevoet, W. (author), de Bart, A.C.W. (author), Weinans, H. (author), Jahr, H. (author), Verhaar, J.A.N. (author), de Groot, J. (author), van Osch, G.J.V.M. (author), TNO Kwaliteit van Leven (author)Objective: Examine effects of insulin-like growth factor 1 (IGF1), transforming growth factor β2 (TGFβ2) and fibroblast growth factor 2 (FGF2) on proteoglycan and collagen network and biomechanical properties of the newly formed cartilage matrix. Methods: Bovine articular chondrocytes were cultured in alginate beads for 3 weeks with or without...article 2006
- document
-
Verwei, M. (author), van Burgsteden, J.A. (author), Krul, C.A.M. (author), van de Sandt, J.J.M. (author), Freidig, A.P. (author), TNO Kwaliteit van Leven (author)The new EU legislations for chemicals (Registration, Evaluation and Authorization of Chemicals, REACH) and cosmetics (Seventh Amendment) stimulate the acceptance of in vitro and in silico approaches to test chemicals for their potential to cause reproductive effects. In the current study seven compounds with known in vivo developmental effects...article 2006
- document
-
Korsheninnikova, E. (author), van der Zon, G.C.M. (author), Voshol, P.J. (author), Janssen, G.M. (author), Havekes, L.M. (author), Grefhorst, A. (author), Kuipers, F. (author), Reijngoud, D.-J. (author), Romijn, J.A. (author), Ouwens, D.M. (author), Maassen, J.A. (author), TNO Kwaliteit van Leven (author)Aims/hypothesis: Activation of nutrient sensing through mammalian target of rapamycin (mTOR) has been linked to the pathogenesis of insulin resistance. We examined activation of mTOR-signalling in relation to insulin resistance and hepatic steatosis in mice. Materials and methods: Chronic hepatic steatosis and hepatic insulin resistance were...article 2006
- document
-
Rein, D. (author), Schijlen, E. (author), Kooistra, T. (author), Herbers, K. (author), Verschuren, L. (author), Hall, R. (author), Sonnewald, U. (author), Bovy, A. (author), Kleemann, R. (author), TNO Kwaliteit van Leven TNO Voeding (author)The increased consumption of fruits and vegetables is associated with reduced cardiovascular disease. The molecular basis of this health effect is not fully understood, yet dietary flavonoids are thought to play an important role. Genetic engineering has enabled us to overexpress specific flavonoids (flavones and flavonols) in tomato fruit....article 2006
- document
-
Verhaagh, S. (author), de Jong, E. (author), Goudsmit, J. (author), Lecollinet, S. (author), Gillissen, G. (author), de Vries, M. (author), van Leuven, K. (author), Que, I. (author), Ouwehand, K. (author), Mintardjo, R. (author), Weverling, G.J. (author), Radošević, K. (author), Richardson, J. (author), Eloit, M. (author), Lowik, C. (author), Quax, P. (author), Havenga, M. (author), TNO Kwaliteit van Leven (author)Wild-type strains of mice do not express CD46, a high-affinity receptor for human group B adenoviruses including type 35. Therefore, studies performed to date in mice using replication-incompetent Ad35 (rAd35) vaccine carriers may underestimate potency or result in altered vector distribution. Here, it is reported that CD46 transgenic mice (MYII...article 2006
- document
-
Schepers, A. (author), de Vries, M.R. (author), van Leuven, C.J. (author), Grimbergen, J.M. (author), Holers, V.M. (author), Daha, M.R. (author), van Bockel, J.H. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)BACKGROUND - Venous bypass grafts may fail because of development of intimal hyperplasia and accelerated atherosclerosis. Inflammation plays a major role in these processes. Complement is an important part of the immune system and participates in the regulation of inflammation. The exact role of complement in the process of accelerated...article 2006
- document
-
Kaijzel, E.L. (author), Koolwijk, P. (author), van Erck, M.G.M. (author), van Hinsbergh, V.W.M. (author), de Maat, M.P.M. (author), TNO Kwaliteit van Leven (author)Background: During wound repair, fibrin acts both as a barrier to prevent blood loss and as a temporary matrix for the invasion and ingrowth of endothelial and tissue cells. A well-controlled angiogenesis process in the fibrinous exudate matrix is crucial for optimal wound healing. The composition and structure of the fibrin matrix are important...article 2006
- document
-
Schepers, A. (author), Pires, N.M.M. (author), Eefting, D. (author), de Vries, M.R. (author), van Bokel, J.H. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)Objective: The aim of this study was to assess whether the anti-inflammatory agent dexamethasone can inhibit vein graft thickening without the occurrence of serious side effects. Methods: Venous interposition grafting was performed in the common carotid artery of hypercholesterolemic ApoE3Leiden transgenic mice. Mice were treated with...article 2006
- document
-
Kooistra, T. (author), Verschuren, L. (author), van der Vries de-Weij, J. (author), Koenig, W. (author), Toet, K. (author), Princen, H.M.G. (author), Kleemann, R. (author), TNO Kwaliteit van Leven (author)OBJECTIVE - To demonstrate, quantify, and mechanistically dissect antiatherosclerotic effects of fenofibrate besides lowering plasma cholesterol per se. METHODS AND RESULTS - ApoE*3Leiden transgenic mice received either a high-cholesterol diet (HC) or HC containing fenofibrate (HC+FF) resulting in 52% plasma cholesterol-lowering. In a separate...article 2006
- document
-
Burger-Kentischer, A. (author), Göbel, H. (author), Kleemann, R. (author), Zernecke, A. (author), Bucala, R. (author), Leng, L. (author), Finkelmeier, D. (author), Geiger, G. (author), Schaefer, H.E. (author), Schober, A. (author), Weber, C. (author), Brunner, H. (author), Rütten, H. (author), Ihling, C. (author), Bernhagen, J. (author), TNO Kwaliteit van Leven (author)Atherosclerosis is an inflammatory response of the arterial wall to "injury", which is prominently driven by cytokines. The inflammatory mediator macrophage migration inhibitory factor (MIF) is a unique cytokine that was recently associated with atherogenesis. Here, we have investigated whether MIF has a role in spontaneous atherosclerosis by...article 2006
- document
-
Hu, L. (author), Boesten, L.S.M. (author), May, P. (author), Herz, J. (author), Bovenschen, N. (author), Huisman, M.V. (author), Berbée, J.F.P. (author), Havekes, L.M. (author), van Vlijmen, B.J.M. (author), Tamsma, J.T. (author), TNO Kwaliteit van Leven (author)OBJECTIVE - In vitro studies implicate that the low-density lipoprotein receptor (LDLR)-related protein (LRP) in macrophages has a pro-atherogenic potential. In the present study, we investigated the in vivo role of macrophage specific LRP in atherogenesis independent of its role in the uptake of lipoproteins. METHODS AND RESULTS - We generated...article 2006
- document
-
van Hinsbergh, V.W.M. (author), Engelse, M.A. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)Pericellular proteases play an important role in angiogenesis and vasculogenesis. They comprise (membrane-type) matrix metalloproteinases [(MT-)MMPs], serine proteases, cysteine cathepsins, and membrane-bound aminopeptidases. Specific inhibitors regulate them. Major roles in initiating angiogenesis have been attributed to MT1-matrix...article 2006
- document
-
den Boer, M.A.M. (author), Voshol, P.J. (author), Schröder-van Der Elst, J.P. (author), Korsheninnikova, E. (author), Ouwens, D.M. (author), Kuipers, F. (author), Havekes, L.M. (author), Romijn, J.A. (author), TNO Kwaliteit van Leven (author)Several studies have demonstrated an association in humans between plasma levels or production capacity of the antiinflammatory cytokine IL-10 and insulin sensitivity. The aim of our study was to investigate the protective role of endogenous IL-10 availability in the development of diet-induced insulin resistance. We compared parameters of...article 2006
- document
-
Brand, W. (author), Schutte, M.E. (author), Williamson, G. (author), van Zanden, J.J. (author), Cnubben, N.H.P. (author), Groten, J.P. (author), van Bladeren, P.J. (author), Rietjens, I.M.C.M. (author), TNO Kwaliteit van Leven (author)The transcellular transport of ingested food ingredients across the intestinal epithelial barrier is an important factor determining bioavailability upon oral intake. This transcellular transport of many chemicals, food ingredients, drugs or toxic compounds over the intestinal epithelium can be highly dependent on the activity of membrane bound...article 2006
- document
-
den Boer, M.A.M. (author), Voshol, P.J. (author), Kuipers, F. (author), Romijn, J.A. (author), Havekes, L.M. (author), TNO Kwaliteit van Leven (author)Insulin is an important inhibitor of both hepatic glucose output and hepatic VLDL-triglyceride (VLDL-TG) production. We investigated whether both processes are equally sensitive to insulin-mediated inhibition. To test this, we used euglycemic clamp studies with four increasing plasma concentrations of insulin in wild-type C57Bl/6 mice. By...article 2006
- document
-
Schepers, A. (author), Eefting, D. (author), Bonta, P.I. (author), Grimbergen, J.M. (author), de Vries, M.R. (author), van Weel, V. (author), de Vries, C.J. (author), Egashira, K. (author), van Bockel, J.H. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)OBJECTIVE - Because late vein graft failure is caused by intimal hyperplasia (IH) and accelerated atherosclerosis, and these processes are thought to be inflammation driven, influx of monocytes is one of the first phenomena seen in IH, we would like to provide direct evidence for a role of the MCP-1 pathway in the development of vein graft...article 2006
- document
-
Zvinavashe, E. (author), Murk, A.J. (author), Vervoort, J. (author), Soffers, A.E.M.F. (author), Freidig, A. (author), Rietjens, I.M.C.M. (author), TNO Kwaliteit van Leven (author)Fifteen experimental literature data sets on the acute toxicity of substituted nitrobenzenes to algae (Scenedesmus obliquus, Chlorella pyrenoidosa, C. vulgaris), daphnids (Daphnia magna, D. carinata), fish (Cyprinus carpio, Poecilia reticulata), protozoa (Tetrahymena pyriformis), bacteria (Phosphobacterium phosphoreum), and yeast (Saccharomyces...article 2006
- document
-
Boesten, L.S.M. (author), Zadelaar, A.S.M. (author), van Nieuwkoop, A. (author), Hu, L. (author), Jonkers, J. (author), van de Water, B. (author), Gijbels, M.J.J. (author), van der Made, I. (author), de Winther, M.P.J. (author), Havekes, L.M. (author), van Vlijmen, B.J.M. (author), TNO Kwaliteit van Leven (author)The cellular composition of an atherosclerotic lesion is determined by cell infiltration, proliferation, and apoptosis. The tumor suppressor gene retinoblastoma (Rb) has been shown to regulate both cell proliferation and cell death in many cell types. To study the role of macrophage Rb in the development of atherosclerosis, we used apoE...article 2006
- document
-
Rensen, P.C.N. (author), Havekes, L.M. (author), TNO Kwaliteit van Leven (author)Chemicals / CAS: 2 methylpropanethioic acid s [2 [1 (2 ethylbutyl)cyclohexylcarboxamido]phenyl] ester, 211513-37-0; atorvastatin, 134523-00-5, 134523-03-8; nicotinic acid, 54-86-4, 59-67-6; torcetrapib, 262352-17-0; Carrier Proteins; CETP protein, human; Cholesterol Ester Transfer Proteins; Cholesterol Esters; Cholesterol, HDL; Glycoproteins;...article 2006