Searched for: subject:"Animals"
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van der Heijden, R.A. (author), Morrison, M.C. (author), Sheedfar, F. (author), Mulder, P. (author), Schreurs, M. (author), Hommelberg, P.P.H. (author), Hofker, M.H. (author), Schalkwijk, C. (author), Kleemann, R. (author), Tietge, U.J.F. (author), Koonen, D.P.Y. (author), Heeringa, P. (author)
Background. Naturally occurring substances from the flavanol and anthocyanin family of polyphenols have been proposed to exert beneficial effects in the course of obesity. We hypothesized that their effects on attenuating obesity-induced dyslipidemia as well as the associated inflammatory sequelae especially have health-promoting potential....
article 2016
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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), TNO Kwaliteit van Leven (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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de Beer, F. (author), van Dijk, K.W. (author), Jong, M.C. (author), van Vark, L.C. (author), van der Zee, A. (author), Hofker, M.H. (author), Fallaux, F.J. (author), Hoeben, R.C. (author), Smelt, A.H.M. (author), Havekes, L.M. (author), Gaubius Instituut TNO (author)
The apolipoprotein E2 (Lys146→Gln) variant is associated with a dominant form of familial dysbetalipoproteinemia. Heterozygous carriers of this variant have elevated levels of plasma triglycerides, cholesterol, and apolipoprotein E (apoE). It was hypothesized that the high amounts of triglycerides in the very low density lipoprotein (VLDL)...
article 2000
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van Eck, M. (author), de Winther, M.P.J. (author), Herijgers, N. (author), Havekes, L.M. (author), Hofker, M.H. (author), Groot, P.H.E. (author), van Berkel, T.J.C. (author), Gaubius Instituut TNO (author)
In the arterial wall, scavenger receptor class A (SRA) is implicated in pathological lipid deposition. In contrast, in the liver, SRA is suggested to remove modified lipoproteins from the circulation, thereby protecting the body from their pathological action. The role of SRA on bone marrow-derived cells in lipid metabolism and atherogenesis was...
article 2000
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van Eck, M. (author), Herijgers, N. (author), van Dijk, K.W. (author), Havekes, L.M. (author), Hofker, M.H. (author), Groot, P.H.E. (author), van Berkel, T.J.C. (author), Gaubius Instituut TNO (author)
The effect of monocyte/macrophage-derived wild-type mouse apolipoprotein E (apoE), human apoE3-Leiden, and human apoE2 on serum cholesterol levels and the development of atherosclerosis in apoE-deficient (apoe-/-) mice was investigated by using bone marrow transplantation (BMT). At 4 weeks after BMT, murine apoe+/+ bone marrow reduced serum...
article 2000
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de Winther, M.P.J. (author), van Dijk, K.W. (author), Havekes, L.M. (author), Hofker, M.H. (author), Gaubius Instituut TNO (author)
In atherogenesis, elevated plasma levels of low density lipoprotein (LDL) lead to the chronic presence of LDL in the arterial wall. There, LDL is modified (eg, oxidized), and these modified lipoproteins activate endothelial cells, which attract circulating monocytes. These monocytes enter the vessel wall, differentiate into macrophages, and...
article 2000
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Herijgers, N. (author), de Winther, M.P.J. (author), van Eck, M. (author), Havekes, L.M. (author), Hofker, M.H. (author), Hoogerbrugge, P.M. (author), van Berkel, T.J.C. (author), Gaubius Instituut TNO (author)
Scavenger receptors, which include various classes, play an important role in atherogenesis by mediating the unrestricted uptake of modified lipoproteins, resulting in the massive accumulation of cholesteryl esters. Because macrophage-derived foam cells are considered to be an important feature in early atherogenesis, we investigated the role of...
article 2000
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Gaubius Instituut TNO (author), Tacken, P.J. (author), de Beer, F. (author), van Vark, L.C. (author), Havekes, L.M. (author), Hofker, M.H. (author), van Dijk, K.W. (author)
The apolipoprotein (apo)E receptor 2 (apoER2) is a recently cloned member of the low-density lipoprotein (LDL) receptor (LDLR) family, showing a high homology with both the LDLR and the very-low-density lipoprotein (VLDL) receptor (VLDLR). In the present study, the binding characteristics of the apoER2 with respect to apoE and lipoprotein lipase...
article 2000
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de Beer, F. (author), Hendriks, W.L. (author), van Vark, L.C. (author), Kamerling, S.W.A. (author), van Dijk, K.W. (author), Hofker, M.H. (author), Smelt, A.H.M. (author), Havekes, L.M. (author), Gaubius instituut TNO (author)
The binding of β-VLDL to heparan sulfate proteoglycans (HSPG) has been reported to be stimulated by both apoE and lipoprotein lipase (LPL). In the present study we investigated the effect of the isoform and the amount of apoE per particle, as well as the role of LPL on the binding of β-VLDL to HSPG. Therefore, we isolated β-VLDL from transgenic...
article 1999
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Gijbels, M.J.J. (author), van der Cammen, M. (author), van der Laan, L.J.W. (author), Emeis, J.J. (author), Havekes, L.M. (author), Hofker, M.H. (author), Kraal, G. (author), Gaubius instituut TNO (author)
Apolipoprotein E3-Leiden (APOE3-Leiden) transgenic mice develop hyperlipidemia and are highly susceptible to diet-induced atherosclerosis. We have studied the progression and regression of atherosclerosis using immunohistochemistry. Female transgenic mice were fed a moderate fat diet to study atherosclerosis over a longer time period. Fatty...
article 1999
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van Dijk, K.W. (author), van Vlijmen, B.J.M. (author), van 't Hof, H.B. (author), van der Zee, A. (author), Santamarina-Fojo, S. (author), van Berkel, T.J.C. (author), Havekes, L.M. (author), Hofker, M.H. (author), TNO Preventie en Gezondheid (author)
To investigate the quantitative requirement for apolipoprotein (apo) E in the clearance of lipoproteins via the non-low density lipoprotein (LDL) receptor mediated pathway, human APOE was overexpressed at various levels in the livers of mice deficient for both the endogenous Apoe and Ldlr genes (Apoe-/- · Ldlr-/-) using adenovirus-mediated gene...
article 1999
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Lutgens, E. (author), Daemen, M. (author), Kockx, M. (author), Doevendans, P. (author), Hofker, M. (author), Havekes, L. (author), Wellens, H. (author), de Muinck, E.D. (author), Gaubius instituut TNO (author)
Background - This study documents (1) the progression of atherosclerosis along the entire arterial tree in APOE(*)3-Leiden mice after 1, 4, 6, 9, and 12 months of a high-fat/high-cholesterol (HFC) diet and (2) the amount and phenotype of DNA-synthesizing and apoptotic cells in different lesion types after 6 months of HFC diet. Methods and...
article 1999
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Jong, M.C. (author), Hofker, M.H. (author), Havekes, L.M. (author), Gaubius instituut TNO (author)
The human apoCs (ie, apoC1, apoC2, and apoC3) are often portrayed as members of 1 consistent protein family because of their similar distributions among lipoprotein classes, their low molecular weights, and coincident purification. The human apoCs are protein constituents of chylomicrons, VLDL, and HDL. In comparison with the intensely studied...
article 1999
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van Dijk, K.W. (author), van Vlijmen, B.J.M. (author), de Winther, M.P.J. (author), van 't Hof, B. (author), van der Zee, A. (author), van der Boom, H. (author), Havekes, L.M. (author), Hofker, M.H. (author), Gaubius instituut TNO (author)
To investigate the relative roles of the LDL receptor- and non-LDL receptor-mediated pathways in the clearance of apolipoprotein E (apoE) variants in vivo, we have generated apoE2(Arg158-Cys) (apoE2) and apoE3- Leiden transgenic mice deficient for the endogenous mouse Apoe and Ldl receptor genes (Apoe-/-.Ldlr-/- mice). Unexpectedly, on the Apoe-...
article 1999
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de Winther, M.P.J. (author), Gijbels, M.J.J. (author), van Dijk, K.W. (author), van Gorp, P.J.J. (author), Suzuki, H. (author), Kodama, T. (author), Frants, R.R. (author), Havekes, L.M. (author), Hofker, M.H. (author), Gaubius instituut TNO (author)
Apolipoprotein (apo) E3Leiden is a dysfunctional apo E variant associated with familial dysbetalipoproteinemia in humans. Transgenic mice carrying the APOE3Leiden gene develop hyperlipidemia and are highly susceptible to diet-induced atherosclerosis. An early step in atherosclerosis is foam cell formation, which is thought to result from the...
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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de Winther, M.P.J. (author), van Dijk, K.W. (author), van Vlijmen, B.J.M. (author), Gijbels, M.J.J. (author), Heus, J.J. (author), Wijers, E.R. (author), van den Bos, A.C. (author), Breuer, M. (author), Frants, R.R. (author), Havekes, L.M. (author), Hofker, M.H. (author), Gaubius instituut TNO (author)
Macrophage scavenger receptors class A (MSR) are thought to play an important role in atherogenesis by mediating the unrestricted uptake of modified lipoproteins by macrophages in the vessel wall leading to foam cell formation. To investigate the in vivo role of the MSR in this process, a transgenic mouse model expressing both isoforms of the...
article 1999
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Gaubius instituut TNO (author), Jong, M.C. (author), Willems-van Dijk, K. (author), Dahlmans, V.E.H. (author), van der Boom, H. (author), Kobayashi, K. (author), Oka, K. (author), Siest, G. (author), Chan, L. (author), Hofker, M.H. (author), Havekes, L.M. (author)
We have shown previously that human apolipoprotein (apo)Cl transgenic mice exhibit hyperlipidaemia, due primarily to an impaired clearance of very-low-density lipoprotein (VLDL) particles from the circulation. In the absence of at least the low-density-lipoprotein receptor (LDLR), it was shown that APOCI overexpression in transgenic mice...
article 1999
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Jong, M.C. (author), Gijbels, M.J.J. (author), Dahlmans, V.E.H. (author), van Gorp, P.J.J. (author), Koopman, S.-J. (author), Ponec, M. (author), Hofker, M.H. (author), Havekes, L.M. (author), Gaubius instituut TNO (author)
Transgenic mice were generated with different levels of human apolipoprotein C1 (APOC1) expression in liver and skin. At 2 mo of age, serum levels of cholesterol, triglycerides (TG), and FFA were strongly elevated in APOC1 transgenic mice compared with wild-type mice. These elevated levels of serum cholesterol and TG were due mainly to an...
article 1998
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van Vlijmen, B.J.M. (author), Pearce, N.J. (author), Bergö, M. (author), Staels, B. (author), Yates, J.W. (author), Gribble, A.D. (author), Bond, B.C. (author), Hofker, M.H. (author), Havekes, L.M. (author), Groot, P.H.E. (author), Gaubius Instituut TNO (author)
Apolipoprotein (APO) E*3-Leiden mice with impaired chylomicron and VLDL (very low density lipoprotein) remnant metabolism display hyperlipidaemia and atherosclerosis. In the present study, these mice were used for testing the hypolipidaemic effect of two marketed agents, lovastatin (CAS 75330-75-5) and gemfibrozil (CAS 25812-30-0) as well as a...
article 1998
Searched for: subject:"Animals"
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