Searched for: subject:"Animals"
(1 - 16 of 16)
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Gautier, T. (author), Tietge, U.J.F. (author), Boverhof, R. (author), Perton, F.G. (author), Le Guern, N. (author), Masson, D. (author), Rensen, P.C.N. (author), Havekes, L.M. (author), Lagrost, L. (author), Kuipers, F. (author), TNO Kwaliteit van Leven (author)
The impact of apolipoprotein C-I (apoC-I) deficiency on hepatic lipid metabolism was addressed in mice in the presence or the absence of cholesteryl ester transfer protein (CETP). In addition to the expected moderate reduction in plasma cholesterol levels, apoCIKO mice showed significant increases in the hepatic content of cholesteryl esters (...
article 2007
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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
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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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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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Duivenvoorden, I. (author), Teusink, B. (author), Rensen, P.C.N. (author), Kuipers, F. (author), Romijn, J.A. (author), Havekes, L.M. (author), Voshol, P.J. (author), TNO Kwaliteit van Leven (author)
Hepatic VLDL and glucose production is enhanced in type 2 diabetes and associated with hepatic steatosis. Whether the derangements in hepatic metabolism are attributable to steatosis or to the increased availability of FA metabolites is not known. We used methyl palmoxirate (MP), an inhibitor of carnitine palmitoyl transferase I, to acutely...
article 2005
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Goudriaan, J.R. (author), den oer, M.A.M. (author), Rensen, P.C.N. (author), Febbraio, M. (author), Kuipers, F. (author), Romijn, J.A. (author), Havekes, L.M. (author), Voshol, P.J. (author), TNO Kwaliteit van Leven (author)
CD36 is involved in high-affinity peripheral FFA uptake. CD36-deficient (cd36-/-) mice exhibit increased plasma FFA and triglyceride (TG) levels. The aim of the present study was to elucidate the cause of the increased plasma TG levels in cd36-/- mice. cd36-/- mice showed no differences in hepatic VLDL-TG production or intestinal [3H]TG uptake...
article 2005
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TNO Kwaliteit van Leven (author), Grefhorst, A. (author), van Dijk, T.H. (author), Hammer, A. (author), van der Sluijs, F.H. (author), Havinga, R. (author), Havekes, L.M. (author), Romijn, J.A. (author), Groot, P.H. (author), Reijngoud, D.J. (author), Kuipers, F. (author)
Liver X receptor (LXR) agonists have been proposed to act as anti-diabetic drugs. However, pharmacological LXR activation leads to severe hepatic steatosis, a condition usually associated with insulin resistance and type 2 diabetes mellitus. To address this apparent contradiction, lean and ob/ob mice were treated with the LXR agonist GW-3965 for...
article 2005
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den Boer, M. (author), Voshol, P.J. (author), Kuipers, F. (author), Havekes, L.M. (author), Romijn, J.A. (author), TNO Preventie en Gezondheid (author)
Epidemiological studies in humans, as well as experimental studies in animal models, have shown an association between visceral obesity and dyslipidemia, insulin resistance, and type 2 diabetes mellitus. Recently, attention has been focused on the excessive accumulation of triglycerides (TG) in the liver as part of this syndrome. In this review,...
article 2004
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Grefhorst, A. (author), Elzinga, B.M. (author), Voshol, P.J. (author), Plösch, T. (author), Kok, T. (author), Bloks, V.W. (author), van der Sluijs, F.H. (author), Havekes, L.M. (author), Romijn, J.A. (author), Verkade, H.J. (author), Kuipers, F. (author), Gaubius Instituut TNO (author)
The oxysterol-activated liver X receptor (LXR) provides a link between sterol and fatty acid metabolism; activation of LXR induces transcription of lipogenic genes. This study shows that induction of the lipogenic genes Srebp-1c, Fas, and Acc1 upon administration of the synthetic LXR agonist T0901317 to C57BL/6J mice (10 mg/kg/day, 4 days) is...
article 2002
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Voshol, P.J. (author), Koopen, N.R. (author), de Vree, J.M.L. (author), Havinga, R. (author), Princen, H.M.G. (author), Oude Elferink, R.P.J (author), Groen, A.K. (author), Kuipers, F. (author), Gaubius Instituut TNO (author)
Background/Aims: Mdr2 P-glycoprotein deficiency in mice (Mdr2(-/-)) leads to formation of cholesterol/cholesterol-depleted bile and reduced plasma HDL cholesterol. We addressed the questions: (1) does HDL in Mdr2(-/-) mice normalize upon phospholipid and/or cholesterol feeding, and (2): is the Mdr2(-/-) liver capable of handling excess dietary...
article 2001
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Mensenkamp, A.R. (author), Teusink, B. (author), Baller, J.F.W. (author), Wolters, H. (author), Havinga, R. (author), van Dijk, K.W. (author), Havekes, L.M. (author), Kuipers, F. (author), Gaubius Instituut TNO (author)
Apolipoprotein E (apoE)-deficient mice develop hepatic steaatosis and show impaired very low density lipoprotein (VLDL)-triglyceride (TG) secretion. These effects are normalized on the introduction of the human APOE3 gene. To assess whether this apoE effect is isoform specific, we studied hepatic lipid metabolism in mice expressing either APOE3...
article 2001
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Koopen, N.R. (author), Post, S.M. (author), Wolters, H. (author), Havinga, R. (author), Stellaard, F. (author), Boverhof, R. (author), Kuipers, F. (author), Princen, H.M.G. (author), Gaubius instituut TNO (author)
Effects of 17α-ethinylestradiol (EE) on the neutral and acidic biosynthetic pathways of bile salt (BS) synthesis were evaluated in rats with an intact enterohepatic circulation and in rats with long-term bile diversion to induce BS synthesis. For this purpose, bile salt pool composition, synthesis of individual BS in vivo, hepatic activities,...
article 1999
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Post, S.M. (author), Paul Zoeteweij, J. (author), Bos, M.H.A. (author), de Wit, E.C.M. (author), Havinga, R. (author), Kuipers, F. (author), Princen, H.M.G. (author), Gaubius instituut TNO (author)
Acyl-coenzyme A:cholesterol acyltransferase (ACAT) inhibitors are currently in clinical development as potential lipid-lowering and antiatherosclerotic agents. We investigated the effect of avasimibe (C1- 1011), a novel ACAT inhibitor, on bile acid synthesis and cholesterol 7α- hydroxylase in cultured rat hepatocytes and rats fed different diets...
article 1999
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Mensenkamp, A.R. (author), Jong, M.C. (author), van Goor, H. (author), van Luyn, M.J.A. (author), Bloks, V. (author), Havinga, R. (author), Voshol, P.J. (author), Hofker, M.H. (author), van Dijk, K.W. (author), Havekes, L.M. (author), Kuipers, F. (author), TNO Preventie en Gezondheid (author)
ApoE-deficient mice on low fat diet show hepatic triglyceride accumulation and a reduced very low density lipoprotein (VLDL) triglyceride production rate. To establish the role of apoE in the regulation of hepatic VLDL production, the human APOE3 gene was introduced into apoE-deficient mice by cross-breeding with APOE3 transgenics (APOE3/apoe-/-...
article 1999
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Gaubius Instituut TNO (author), Princen, H.M.G. (author), Meijer, P. (author), Wolthers, B.G. (author), Vonk, R.J. (author), Kuipers, F. (author)
Bile acid synthesis, determined by conversion of [4-14C]cholesterol into bile acids in rat and human hepatocytes and by measurement of mass production of bile acids in rat hepatocytes, was dose-dependently decreased by cyclosporin A, with 52% (rat) and 45% (human) inhibition at 10 μM. The decreased bile acid production in rat hepatocytes was due...
article 1991
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Kempen, H.J. (author), Kuipers, F. (author), van Berkel, T.J.C. (author), Vonk, R.J. (author), Gaubius instituut TNO (author)
As shown by us previously (van Berkel et al. 1985. J. Biol. Chem. 260: 2694-2699 and van Berkel et al. 1985. J. Biol. Chem. 260: 12203-12207) the clearance of both low density lipoproteins (LDL) and high density lipoproteins (HDL) from the blood can be greatly enhanced by pretreatment of these lipoproteins with a tris-galactosylated cholesterol...
article 1987
Searched for: subject:"Animals"
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