Searched for: subject:"Bioavailability"
(1 - 20 of 51)

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Vink, J.P.M. (author), Comans, R.N.J. (author), Dijkstra, J.J. (author), Lamers, L.P.M. (author)
article 2020
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Wambaugh, J.F. (author), Hughes, M.F. (author), Ring, C.L. (author), MacMillan, D.K. (author), Ford, J. (author), Fennell, T.R. (author), Black, S.R. (author), Snyder, R.W. (author), Sipes, N.S. (author), Wetmore, B.A. (author), Westerhout, J. (author), Setzer, R.W. (author), Pearce, R.G. (author), Simmons, J.E. (author), Thomas, R.S. (author)
Prioritizing the risk posed by thousands of chemicals potentially present in the environment requires exposure, toxicity, and toxicokinetic (TK) data, which are often unavailable. Relatively high throughput, in vitro TK (HTTK) assays and in vitro-to-in vivo extrapolation (IVIVE) methods have been developed to predict TK, but most of the in vivo...
article 2018
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Krul, L. (author), Kremer, B.H.A. (author), Lucas Luijckx, N.B. (author), Leeman, W.R. (author)
The EU Food Supplements Directive (2002/46/EC) mandates the determination of both maximum and minimum permitted levels (MPLs) for micronutrients. In order to determine MPLs which are feasible for particular population groups, a scientific approach should be used in which risk of high intake, risk of inadequacy and benefits are assessed in an...
article 2017
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Cnubben, N.H.P. (author), Tel, S.L. (author), Hemmes, M.A. (author), Langenkamp-Brand, A. (author), Grossouw, D. (author), Jansen, H.T. (author), de Bie, B.T.H.J. (author)
Background: Worldwide obesity has nearly doubled since 1980 and is a leading risk for global deaths, profoundly affecting morbidity, mortality, health-care costs, and professional and personal quality of life. Treatment of obesity and its consequences include lifestyle intervention, pharmacotherapy, and bariatric surgery. Polyglucosamines have...
article 2016
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Dusinska, M. (author), Boland, S. (author), Saunders, M. (author), Juillerat-Jeanneret, L. (author), Tran, L. (author), Pojana, G. (author), Marcomini, A. (author), Volkovova, K. (author), Tulinska, J. (author), Knudsen, L.E. (author), Gombau, L. (author), Whelan, M. (author), Collins, A.R. (author), Marano, F. (author), Housiadas, C. (author), Bilanicova, D. (author), Halamoda Kenzaoui, B. (author), Correia Carreira, S. (author), Magdolenova, Z. (author), Fjellsbo, L.M. (author), Huk, A. (author), Handy, R. (author), Walker, L. (author), Barancokova, M. (author), Bartonova, A. (author), Burello, E. (author), Castell, J. (author), Cowie, H. (author), Drlickova, M. (author), Guadagnini, R. (author), Harris, G. (author), Harju, M. (author), Heimstad, E.S. (author), Hurbankova, M. (author), Kazimirova, A. (author), Kovacikova, Z. (author), Kuricova, M. (author), Liskova, A. (author), Milcamps, A. (author), Neubauerova, E. (author), Palosaari, T. (author), Papazafiri, P. (author), Pilou, M. (author), Poulsen, M.S. (author), Ross, B. (author), Runden-Pran, E. (author), Sebekova, K. (author), Staruchova, M. (author), Vallotto, D. (author), Worth, A. (author)
In spite of recent advances in describing the health outcomes of exposure to nanoparticles (NPs), it still remains unclear how exactly NPs interact with their cellular targets. Size, surface, mass, geometry, and composition may all play a beneficial role as well as causing toxicity. Concerns of scientists, politicians and the public about...
article 2015
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Walczak, A.P. (author), Hendriksen, P.J.M. (author), Woutersen, R.A. (author), van der Zande, M. (author), Undas, A.K. (author), Helsdingen, R. (author), van den Berg, H.H.J. (author), Rietjens, I.M.C.M. (author), Bouwmeester, H. (author)
The likelihood of oral exposure to nanoparticles (NPs) is increasing, and it is necessary to evaluate the oral bioavailability of NPs. In vitro approaches could help reducing animal studies, but validation against in vivo studies is essential. Previously, we assessed the translocation of 50 nm polystyrene NPs of different charges (neutral,...
article 2015
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Kostewicz, E.S. (author), Abrahamsson, B. (author), Brewster, M. (author), Brouwers, J. (author), Butler, J. (author), Carlert, S. (author), Dickinson, P.A. (author), Dressman, J. (author), Holm, R. (author), Klein, S. (author), Mann, J. (author), McAllister, M. (author), Minekus, M. (author), Muenster, U. (author), Müllertz, A. (author), Verwei, M. (author), Vertzoni, M. (author), Weitschies, W. (author), Augustijns, P. (author)
Accurate prediction of the in vivo biopharmaceutical performance of oral drug formulations is critical to efficient drug development. Traditionally, in vitro evaluation of oral drug formulations has focused on disintegration and dissolution testing for quality control (QC) purposes. The connection with in vivo biopharmaceutical performance has...
article 2014
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Westerhout, J. (author), van de Steeg, E. (author), Grossouw, D. (author), Zeijdner, E.E. (author), Krul, C.A.M. (author), Verwei, M. (author), Wortelboer, H.M. (author)
A reliable prediction of the oral bioavailability in humans is crucial and of high interest for pharmaceutical and food industry. The predictive value of currently used in silico methods, in vitro cell lines, ex vivo intestinal tissue and/or in vivo animal studies for human intestinal absorption, however, is often insufficient, especially when...
article 2014
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Ligthart, T.N. (author), Jongbloed, R.H. (author), Tamis, J.E. (author), TNO Bouw en Ondergrond (author)
Background, aim and scope: The environmental impact of building products made from heavy metals has been a topic of discussion for some years. This was fuelled by results of life cycle assessments (LCAs), where the emission of heavy metals strongly effected the results. An issue was that the characterisation factors of the Centre for...
article 2010
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Mateo Anson, N. (author), van den Berg, R. (author), Havenaar, R. (author), Bast, A. (author), Haenen, G.R.M.M. (author), TNO Kwaliteit van Leven (author)
Epidemiological studies have linked whole grain consumption to prevention of several chronic diseases. Whole grain is a source of important phytochemicals, such as ferulic acid (FA). FA is the most abundant phenolic and major contributor to the in vitro antioxidant capacity of wheat grain. Several studies have reported highly variable results on...
article 2009
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Boelsma, E. (author), Kloek, J. (author), TNO Kwaliteit van Leven (author)
Hypertension or high blood pressure is a significant health problem worldwide. Typically, lifestyle changes, including adopting a healthy diet, are recommended for people with an elevated blood pressure. Lactotripeptides are bioactive milk peptides with potential antihypertensive properties in man. These peptides, as part of a food product or as...
article 2009
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Vermeulen, M. (author), Klöpping-Ketelaars, I.W.A.A. (author), van den Berg, R. (author), Vaes, W.H.J. (author), TNO Kwaliteit van Leven (author), KvL (author)
The aim of this study was to determine the bioavailability and kinetics of the supposed anticarcinogen sulforaphane, the hydrolysis product of glucoraphanin, from raw and cooked broccoli. Eight men consumed 200 g of crushed broccoli, raw or cooked, with a warm meal in a randomized, free-living, open cross-over trial. Higher amounts of...
article 2008
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Schutte, M.E. (author), Alink, G.M. (author), Freidig, A.P. (author), Spenkelink, B. (author), Vaessen, J.C.H. (author), van de Sandt, J.J.M. (author), Groten, J.P. (author), Rietjens, I.M.C.M. (author), TNO Kwaliteit van Leven (author), KvL (author)
This study investigates whether the previous observation that quercetin increases the transport of PhIP through Caco-2 monolayers in vitro could be confirmed in an in vivo rat model. Co-administration of 1.45 μmol PhIP/kg bw and 30 μmol quercetin/kg bw significantly increased the blood AUC(0-8 h) of PhIP in rats to 131 ± 14% of the AUC(0-8 h)...
article 2008
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van Ommen, B. (author), Fairweather-Tait, S. (author), Freidig, A. (author), Kardinaal, A. (author), Scalbert, A. (author), Wopereis, S. (author), TNO Kwaliteit van Leven (author)
Micronutrients are involved in specific biochemical pathways and have dedicated functions in the body, but they are also interconnected in complex metabolic networks, such as oxidative-reductive and inflammatory pathways and hormonal regulation, in which the overarching function is to optimise health. Post-genomic technologies, in particular...
article 2008
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Chanteranne, B. (author), Branca, F. (author), Kardinaal, A. (author), Wahala, K. (author), Braesco, V. (author), Ladroite, P. (author), Brouns, F. (author), Coxam, V. (author), TNO Kwaliteit van Leven (author)
The estrogenic effects of soy isoflavones (IF) on symptoms of menopause are of particular interest. The aim of the present study was to improve compliance of IF in two IF-enriched foods providing the same IF circulating levels in postmenopausal women. Forty-two healthy postmenopausal women (mean age: 53.28 years) were recruited for a randomized,...
article 2008
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van Dokkum, W. (author), Frølich, W. (author), Saltmarsh, M. (author), Gee, J. (author), TNO Kwaliteit van Leven (author)
COST (European Cooperation in the field of Scientific and Technical Research) Action 926 is a networking partnership funded by the European Union through the European Science Foundation. Scientists involved have evaluated whether or not the new 'omic' technologies can offer a means of obtaining the scientific evidence to underpin the established...
article 2008
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de Weert, J. (author), de la Cal, A. (author), van den Berg, H. (author), Murk, A. (author), Langenhoff, A. (author), Rijnaarts, H. (author), Grotenhuis, T. (author), TNO Bouw en Ondergrond (author)
The surfactant nonylphenol (NP) is an endocrine-disrupting compound that is widely spread throughout the environment. Although environmental risk assessments are based on total NP concentrations, only the bioavailable fraction posses an environmental risk. The present study describes the bioavailability and biodegradability of NP over time in...
article 2008
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van de Wiele, T.R. (author), Oomen, A.G. (author), Wragg, J. (author), Cave, M. (author), Minekus, M. (author), Hack, A. (author), Cornelis, C. (author), Rompelberg, C.J.M. (author), de Zwart, L.L. (author), Klinck, B. (author), van Wijnen, J. (author), Verstraete, W. (author), Sips, A.J.A.M. (author), TNO Kwaliteit van Leven (author)
This paper presents a multi-laboratory comparison study of in vitro models assessing bioaccessibility of soil-bound lead in the human gastrointestinal tract under simulated fasted and fed conditions. Oral bioavailability data from a previous human in vivo study on the same soil served as a reference point. In general, the bioaccessible lead...
article 2007
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van de Sandt, J.J.M. (author), Dellarco, M. (author), van Hemmen, J.J. (author), TNO Kwaliteit van Leven (author)
Exposure scenarios form an essential basis for chemical risk assessment reports under the new EU chemicals regulation REACH (Registration, Evaluation, Authorisation and restriction of Chemicals). In case the dermal route of exposure is predominant, information on both exposure and dermal bioavailability is necessary for a proper risk assessment....
article 2007
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Vermeulen, M. (author), van den Berg, R. (author), Freidig, A.P. (author), van Bladeren, P.J. (author), Vaes, W.H.J. (author), TNO Kwaliteit van Leven (author)
A high intake of cruciferous vegetables is associated with a reduced risk of cancer and cardiovascular diseases. This protective effect has been linked to isothiocyanates, enzymatic hydrolysis products of glucosinolates. In this study, the metabolic fate of glucosinolates and isothiocyanates after ingestion of 19 different cruciferous vegetables...
article 2006
Searched for: subject:"Bioavailability"
(1 - 20 of 51)

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