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Gayban, A.J.B. (author), Souza, L.A.C. (author), Cooper, S.G. (author), Regalado, E. (author), Kleemann, R. (author), Earley, Y.F. (author)Non-alcoholic fatty liver disease (NAFLD) comprises a spectrum of liver damage directly related to diabetes, obesity, and metabolic syndrome. The (pro)renin receptor (PRR) has recently been demonstrated to play a role in glucose and lipid metabolism. Here, we test the hypothesis that the PRR regulates the development of diet-induced hepatic...article 2023
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Lukovac, S. (author), Belzer, C. (author), Pellis, L. (author), Keijser, B.J. (author), de Vos, W.M. (author), Montijn, R.C. (author), Roeselers, G. (author)The gut microbiota is essential for numerous aspects of human health. However, the underlying mechanisms of many host-microbiota interactions remain unclear. The aim of this study was to characterize effects of the microbiota on host epithelium using a novel ex vivo model based on mouse ileal organoids. We have explored the transcriptional...article 2014
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Kooijman, S. (author), Boon, M.R. (author), Parlevliet, E.T. (author), Geerling, J.J. (author), van de Pol, V. (author), Romijn, J.A. (author), Havekes, L.M. (author), Meurs, I. (author), Rensen, P.C.N. (author)The melanocortin system is an important regulator of energy balance, and melanocortin 4 receptor (MC4R) deficiency is the most common monogenic cause of obesity. We investigated whether the relationship between melanocortin system activity and energy expenditure (EE) is mediated by brown adipose tissue (BAT) activity. Therefore, female APOE∗3...article 2014
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TNO Kwaliteit van Leven (author), Caesar, R. (author), Manieri, M. (author), Kelder, T. (author), Boekschoten, M. (author), Evelo, C. (author), Müller, M. (author), Kooistra, T. (author), Cinti, S. (author), Kleemann, R. (author), Drevon, C.A. (author)Depot-dependent differences in adipose tissue physiology may reflect specialized functions and local interactions between adipocytes and surrounding tissues. We combined time-resolved microarray analyses of mesenteric- (MWAT), subcutaneous- (SWAT) and epididymal adipose tissue (EWAT) during high-fat feeding of male transgenic ApoE3Leiden mice...article 2010
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TNO Kwaliteit van Leven (author), Bijland, S. (author), Pieterman, E.J. (author), Maas, A.C.E. (author), van der Hoorn, J.W.A. (author), van Erk, M.J. (author), van Klinken, J.B. (author), Havekes, L.M. (author), van Dijk, K.W. (author), Princen, H.M.G. (author), Rensen, P.C.N. (author)The peroxisome proliferator-activated receptor alpha (PPARalpha) activator fenofibrate efficiently decreases plasma triglycerides (TG), which is generally attributed to enhanced very low density lipoprotein (VLDL)-TG clearance and decreased VLDL-TG production. However, because data on the effect of fenofibrate on VLDL production are...article 2010
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Pons, D. (author), de Vries, F.R. (author), van den Elsen, P.J. (author), Heijmans, B.T. (author), Quax, P.H.A. (author), Jukema, J.W. (author), TNO Kwaliteit van Leven (author)Significant progress has been made in the clinical management of a variety of cardiovascular diseases. Nevertheless, the therapeutic efficacy of the current treatment modalities for atherosclerosis and restenosis is not fully sufficient in a large proportion of patients. One of the major contributing factors is the clinical and biological...article 2009
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Steeneken, P.A.M. (author), Woortman, A.J.J. (author), TNO Kwaliteit van Leven (author)The occurrence of surface effects in the acetylation of granular potato starch with acetic anhydride to degrees of substitution 0.04-0.2 was studied by two different approaches. The first approach involved the fractionation of granular starch acetates into five different size classes and analysis of their acetate content. Alternatively, two...article 2008
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Bansal, S. (author), Gaspari, M. (author), Raj, H.G. (author), Kumar, A. (author), Cuda, G. (author), Verheij, E. (author), Tyagi, Y.K. (author), Ponnan, P. (author), Rastogi, R.C. (author), Parmar, V.S. (author), TNO Kwaliteit van Leven (author)Our earlier investigations identified acetoxy drug: protein transacetylase (TAase), a unique enzyme in the endoplasmic reticulum (ER) catalyzing the transfer of acetyl groups from polyphenolic acetates (PA) to certain functional proteins. Recently we have established the identity of TAase with ER protein calreticulin (CR) and subsequently...article 2008
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Damsten, M.C. (author), Commandeur, J.N.M. (author), Fidder, A. (author), Hulst, A.G. (author), Touw, D. (author), Noort, D. (author), Vermeulen, N.P.E. (author), TNO Defensie en Veiligheid (author)Covalent binding of reactive electrophilic intermediates to proteins is considered to play an important role in the processes leading to adverse drug reactions and idiosyncratic drug reactions. Consequently, both for the discovery and the development of new drugs, there is a great interest in sensitive methodologies that enable the detection of...article 2007
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de Groot, J. (author), Kosters, H.A. (author), de Jongh, H.H.J. (author), TNO Kwaliteit van Leven (author)To study the influence of the carbohydrate-moiety of ovalbumin on the formation of the heat-stable conformer S-ovalbumin, ovalbumin is deglycosylated with PNGase-F under native conditions. Although the enzymatic deglycosylation procedure resulted in a complete loss of the ability to bind to Concavalin A column-material, only in about 50% the...article 2007
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Nohynek, G.J. (author), Skare, J.A. (author), Meuling, W.J.A. (author), Hein, D.W. (author), de Bie, A.T.H.J. (author), Toutain, H. (author), TNO Voeding (author)In the organism of mammals, important detoxification pathways of arylamines are catalysed by N-acetyltransferase 2 (NAT2). A recent case-control epidemiology study suggested that human NAT2 slow acetylators exposed to oxidative hair dyes may be at greater risk to develop bladder cancer. We therefore profiled urinary [14C]-metabolites and NAT2...article 2004
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Kohli, E. (author), Gaspari, M. (author), Raj, H.G. (author), Parmar, V.S. (author), Sharma, S.K. (author), van der Greef, J. (author), Kumari, R. (author), Gupta, G. (author), Khurana, P. (author), Tyagi, Y.K. (author), Watterson, A.C. (author), Olsen, C.E. (author), TNO Voeding (author)The purification and characterization of the buffalo liver microsomal transacetylase (TAase) catalyzing the transfer of acetyl groups from a model acetoxy drug: 7,8-diacetoxy-4-methylcoumarin (DAMC) to GST3-3 has been described here. The enzyme was routinely assayed using DAMC and cytosolic GST as the substrates and was partially purified from...article 2004
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Artola-Garicano, E. (author), Sinnige, T.L. (author), van Holsteijn, I. (author), Vaes, W.H.J. (author), Hermens, J.L.M. (author)In the current study, the bioconcentration behavior and acute toxicity of two polycyclic musks, Tonalide® 7-acetyl-1,1,3,4,4,6,-hexamethyl-1,2,3,4,-tetrahydronaphthalene (AHTN) and Galaxolide® 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexa-methyl-cyclopenta[γ]-2- benzopyran (HHCB), were studied in two benthic organisms. Polycyclic musks are frequently...article 2003
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Artola-Garicano, E. (author), Hermens, J.L.M. (author), Vaes, W.H.J. (author)In the current study, predictions by Simple Treat 3.0, a fate model for organic chemicals in sewage treatment plants (STPs), are compared with actual measurements in three STPs. Two polycyclic musks, Tonalide® (AHTN) and Galaxolide® (HHCB), were used for model evaluation. Results show that Simple Treat 3.0 is able to predict the removal...article 2003
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Centraal Instituut voor Voedingsonderzoek TNO TNO Voeding (author), Kohli, E. (author), Gaspari, M. (author), Raj, H.G. (author), Parmar, V.S. (author), van der Greef, J. (author), Gupta, G. (author), Kumari, R. (author), Prasad, A.K. (author), Goel, S. (author), Pal, G. (author), Tyagi, K. (author), Jain, S.C. (author), Ahmad, N. (author), Watterson, A.C. (author), Olsen, C.E. (author)The current knowledge on biological protein acetylation is confined to acetyl CoA-dependent acetylation of protein catalyzed by specific acetyl transferases and the non-enzymatic acetylation of protein by acetylated xenobiotics such as aspirin. We have discovered a membrane-bound enzyme catalyzing the transfer of acetyl groups from the acetyl...article 2002
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Demeyer, D. (author), Raemaekers, M. (author), Rizzo, A. (author), Holck, A. (author), de Smedt, A. (author), ten Brink, B. (author), Hagen, B. (author), Montel, C. (author), Zanardi, E. (author), Murbrekk, E. (author), Leroy, F. (author), Vandendriessche, F. (author), Lorentsen, K. (author), Venema, K. (author), Sunesen, L. (author), Stahnke, L. (author), de Vuyst, L. (author), Talon, R. (author), Chizzolini, R. (author), Eerola, S. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Four types of fermented sausages were prepared: two using Northern technology (Norway and Belgium) and two using Mediterranean technology (Belgium and Italy). Mediterranean sausages showed higher pH values and highest residual amounts of myosin and actin. Free fatty acid concentrations reflected the nature of the raw material, rather than the...article 2000
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Gaubius Instituut TNO (author), 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)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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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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Slomp, J. (author), de Gittenberger - Groot, A.C. (author), van Munsteren, J.C. (author), Huysmans, H.A. (author), van Bockel, J.H. (author), van Hinsbergh, V.W.M. (author), Poelmann, R.E. (author), Gaubius Instituut TNO (author)Intimal proliferation is a characteristic feature of arteriosclerosis. Whole vessel wall organ culture systems have been developed to study the early stages of neointima formation. We have cultured a large number of explants of human saphenous vein specimens for several weeks, and have identified the nature of the cells in the newly formed...article 1996
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Rijken, D.C. (author), Jie, A.F.H. (author), Gaubius Laboratory TNO Preventie en Gezondheid (author)Reteplase is a protein consisting of the kringle-2 and protease domains of tissue-type plasminogen activator (t-PA). Because intravenous heparin will be used as an adjunct to thrombolytic therapy with reteplase, we investigated the interactions in vitro between heparin and reteplase as well as between heparin and recombinant t-PA (alteplase) as...article 1996
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