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TNO Kwaliteit van Leven (author), Westerterp, M. (author), Berbée, J.F.P. (author), Pires, N.M.M. (author), van Mierlo, G.J.D. (author), Kleemann, R. (author), Romijn, J.A. (author), Havekes, L.M. (author), Rensen, P.C.N. (author)BACKGROUND - Lipopolysaccharide (LPS), which is released from Gram-negative bacteria on multiplication or lysis, aggravates atherosclerosis in humans and rodents by inducing inflammation via toll-like receptors. Because apolipoprotein C-I (apoCI) enhances the LPS-induced inflammatory response in macrophages in vitro and in mice, we investigated...article 2007
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TNO Kwaliteit van Leven (author), Westerterp, M. (author), Berbée, J.F.P. (author), Delsing, D.J.M. (author), Jong, M.C. (author), Gijbels, M.J.J. (author), Dahlmans, V.E.H. (author), Offerman, E.H. (author), Romijn, J.A. (author), Havekes, L.M. (author), Rensen, P.C.N. (author)Mice that overexpress human apolipoprotein C-I (apoC-I) homozygously (APOC1+/+ mice) are protected against obesity and show cutaneous abnormalities. Although these effects can result from our previous observation that apoC-I inhibits FFA generation by LPL, we have also found that apoC-I impairs the uptake of a FFA analog in adipose tissue. In...article 2007
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TNO Kwaliteit van Leven (author), Moen, C.J.A. (author), Tholens, A.P. (author), Voshol, P.J. (author), de Haan, W. (author), Havekes, L.M. (author), Gargalovic, P. (author), Lusis, A.J. (author), van Dyk, K.W. (author), Frants, R.R. (author), Hofker, M.H. (author), Rensen, P.C.N. (author)The Hyplip2 congenic mouse strain contains part of chromosome 15 from MRL/MpJ on the BALB/cJ background. Hyplip2 mice show increased plasma levels of cholesterol and predominantly triglycerides (TGs) and are susceptible to diet-induced atherosclerosis. This study aimed at elucidation of the mechanism(s) explaining the hypertriglyceridemia....article 2007
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Kitayama, K. (author), Nakai, D. (author), Kono, K. (author), van der Hoop, A.G. (author), Kurata, H. (author), de Wit, E.C. (author), Cohen, L.H. (author), Inaba, T. (author), Kohama, T. (author), TNO Preventie en Gezondheid (author)1-{7-[(1-(3,5-Diethoxyphenyl)-3-{[(3,5-difluorophenyl)(ethyl)amino]carbo nyl}-4-oxo-1,4-dihydroquinolin-7-yl)oxy]heptyl}-1-methylpiperidinium bromide, R-146224, is a potent, specific ileum apical sodium-dependent bile acid transporter (ASBT) inhibitor; concentrations required for 50% inhibition of [3H]taurocholate uptake in human ASBT-expressing...article 2006
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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
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van Doorn, M.B.A. (author), Espirito Santo, S.M. (author), Meijer, P. (author), Kamerling, I.M. (author), Schoemaker, R.C. (author), Dirsch, V. (author), Vollmar, A. (author), Haffner, T. (author), Gebhardt, R. (author), Cohen, A.F. (author), Princen, H.M. (author), Burggraaf, J. (author), TNO Kwaliteit van Leven (author)Background: Epidemiologic studies suggest that garlic may have beneficial effects on risk factors associated with cardiovascular disease (CVD). However, these findings are not unambiguously supported by randomized placebo-controlled clinical trials. Objective: We sought to investigate the effects of a chemically well-characterized garlic...article 2006
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Zadelaar, A.S.M. (author), Boesten, L.S.M. (author), Jukema, J.W. (author), van Vlijmen, B.J.M. (author), Kooistra, T. (author), Emeis, J.J. (author), Lundholm, E. (author), Camejo, G. (author), Havekes, L.M. (author), Gaubius Instituut TNO (author)OBJECTIVE - We investigated whether the dual PPARα/γ agonist tesaglitazar has anti-atherogenic effects in ApoE*3Leiden mice with reduced insulin sensitivity. METHODS AND RESULTS - ApoE*3Leiden transgenic mice were fed a high-fat (HF) insulin-resistance-inducing diet. One group received a high-cholesterol (HC) supplement (1% wt/wt; HC group). A...article 2006
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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
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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
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den Boer, M.A.M. (author), Berbée, J.F.P. (author), Reiss, P. (author), van der Valk, M. (author), Voshol, P.J. (author), Kuipers, F. (author), Havekes, L.M. (author), Rensen, P.C.N. (author), Romijn, J.A. (author), Gaubius Instituut TNO (author)Objective - The use of the HIV protease inhibitor ritonavir (RTV) is frequently associated with hypertriglyceridemia and lipodystrophy. The aim of our study was to determine the mechanism underlying the observed hypertriglyceridemia. Methods and Results - Feeding female APOE*3-Leiden transgenic mice a Western-type diet supplemented with RTV (35...article 2006
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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
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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
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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
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Post, S.M. (author), Groenendijk, M. (author), van der Hoogt, C.C. (author), Fievet, C. (author), Luc, G. (author), Hoekstra, M. (author), Princen, H.M.G. (author), Staels, B. (author), Rensen, P.C.N. (author), TNO Kwaliteit van Leven (author)OBJECTIVE - High-density lipoprotein (HDL) plays a key role in protection against development of atherosclerosis by reducing inflammation, protecting against LDL oxidation, and promoting reverse cholesterol transport from peripheral tissues to the liver for secretion into bile. Cholesterol 7α-hydroxylase (Cyp7a1) catalyzes the rate-limiting step...article 2006
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TNO Kwaliteit van Leven (author), Westerterp, M. (author), de Haan, W. (author), Berbée, J.F.P. (author), Havekes, L.M. (author), Rensen, P.C.N. (author)Previous studies have shown that overexpression of human apolipoprotein C-I (apoC-I) results in moderate hypercholesterolemia and severe hypertriglyceridemia in mice in the presence and absence of apoE. We assessed whether physiological endogenous apoC-I levels are sufficient to modulate plasma lipid levels independently of effects of apoE on...article 2006
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TNO Kwaliteit van Leven (author), Mooijaart, S.P. (author), Berbée, J.F.P. (author), van Heemst, D. (author), Havekes, L.M. (author), de Craen, A.J.M. (author), Slagboom, P.E. (author), Rensen, P.C.N. (author), Westendorp, R.G.J. (author)Background: The ε2, ε3, and ε4 alleles of the apolipoprotein E gene (APOE) encode three isoforms, apoE2, E3, and E4, respectively. The apoE isoforms circulate in different plasma concentrations, but plasma concentrations of the same isoform also differ between individuals. Whereas the isoforms have been associated with cardiovascular disease,...article 2006
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Rensen, P.C.N. (author), van Dijk, K.W. (author), Havekes, L.M. (author), TNO Kwaliteit van Leven (author)Chemicals / CAS: lipoprotein lipase, 83137-80-8, 9004-02-8; APOA5 protein, human; Apolipoproteins A; Apolipoproteins; Triglyceridesarticle 2005
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- de Roos, B. (author), Duivenvoorden, I. (author), Rucklidge, G. (author), Reid, M. (author), Ross, K. (author), Lamers, R.J.A.N. (author), Voshol, P.J. (author), Havekes, L.M. (author), Teusink, B. (author), TNO Kwaliteit van Leven (author) article 2005
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Delsing, D.J.M. (author), Post, S.M. (author), Groenendijk, M. (author), Solaas, K. (author), van der Boom, H. (author), van Duyvenvoorde, W. (author), de Wit, E.C.M. (author), Bloks, V.W. (author), Kuipers, F. (author), Havekes, L.M. (author), Princen, H.M.G. (author), TNO Kwaliteit van Leven (author)The present study was designed to investigate the lipid-lowering properties and mechanisms of action of a new HMG-CoA reductase inhibitor, rosuvastatin, in female ApoE*3-Leiden transgenic mice. Mice received a high fat/cholesterol (HFC) diet containing either rosuvastatin (O [control], 0.00125%, 0.0025%, or 0.005% [w/w]) or 0.05% (w/w)...article 2005
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van Trijp, M.J.C.A. (author), Beulens, J.W.J. (author), Bos, W.J.W. (author), Uiterwaal, C.S.P.M. (author), Grobbee, D.E. (author), Hendriks, H.F.J. (author), Bots, M.L. (author), TNO Kwaliteit van Leven (author)Background: Light-to-moderate alcohol consumption is associated with a decreased risk of ischemic cardiovascular disease, whereas increased alcohol intake is related to hypertension and intracerebral hemorrhage. We studied the effect of alcohol consumption on the augmentation index (AIx), a measure of arterial wave reflection in a population of...article 2005