Searched for: author%3A%22Vaes%2C+W.H.J.%22
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de Ligt, R. (author), Westerhout, J. (author), Grossouw, D. (author), Buters, T.P. (author), Rissman, R. (author), Burggraaf, J. (author), Windhorst, A.D. (author), Tozer, S. (author), Pappa, G. (author), Wal, B. (author), Bury, D. (author), Mason, D.R. (author), Vaes, W.H.J. (author)
A follow-up study was performed in 12 healthy women to evaluate systemic exposure to aluminium following topical application of a representative antiperspirant formulation under real-life use conditions (part A) and to assess the local fate of topically applied aluminium by taking additional tape strips and skin biopsies (Part B). A simple roll...
article 2022
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Oesterreicher, Z. (author), Eberl, S. (author), Wulkersdorfer, B. (author), Matzneller, P. (author), Eder, C (author), van Duijn, E. (author), Vaes, W.H.J. (author), Reiter, B. (author), Stimpfl, T. (author), Jäger, W. (author), Nussbaumer-Proell, A. (author), Marhofer, D. (author), Marhofer, P. (author), Langer, O. (author), Zeitlinger, M. (author)
Background and Objective In microdose studies, drug pharmacokinetics is measured in humans after administration of subtherapeutic doses. While previous microdose studies focused primarily on plasma pharmacokinetics, we set out to evaluate the feasibility of microdosing for a pharmacokinetic assessment in subcutaneous tissue and epithelial lining...
article 2022
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Wang, X. (author), Vaes, W.H.J. (author), van Duijn, E. (author), Nooijen, I. (author), Tong, Z. (author), Lopes de Menezes, D. (author), Maxwell, S.E. (author)
We report an accelerator mass spectrometry (AMS) assay to quantify azacitidine (Aza) incorporation into DNA and RNA from human acute myeloid leukemia (AML) cells, mouse bone marrow (BM) and peripheral blood mononuclear cells (PBMCs). Aza, a cytidine nucleoside analogue, is a disease modifying pharmacological agent used for treatment of...
article 2021
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Stevens, L.J. (author), Zhu, A.Z.X. (author), Chothe, P.P. (author), Chowdhury, S.K. (author), Donkers, J.M. (author), Vaes, W.H.J. (author), Knibbe, C.A.J. (author), Alwayn, I.P.J. (author), van de Steeg, E. (author)
There is a lack of translational preclinical models that can predict hepatic handling of drugs. In this study we aimed to evaluate the applicability of normothermic machine perfusion (NMP) of porcine livers as a novel ex vivo model to predict hepatic clearance, biliary excretion and plasma exposure of drugs. For this evaluation we dosed...
article 2021
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Stevens, L.J. (author), Donkers, J.M. (author), Dubbel, J. (author), Vaes, W.H.J. (author), van de Steeg, E. (author), Knibbe, C.A.J. (author), Alwayn, I.P.J. (author), van de Steeg, E. (author)
To predict the absorption, distribution, metabolism and excretion (ADME) profile of candidate drugs a variety of preclinical models can be applied. The ADME and toxicological behavior of newly developed drugs are often investigated prior to assessment in humans, which is associated with long time-lines and high costs. Therefore, good predictions...
article 2020
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van Groen, B.D. (author), van Duijn, E. (author), de Vries, A. (author), Mooij, M.G. (author), Tibboel, D. (author), Vaes, W.H.J. (author), de Wildt, S.N. (author)
Growth and development affect drug-metabolizing enzyme activity thus could alter the metabolic profile of a drug. Traditional studies to create metabolite profiles and study the routes of excretion are unethical in children due to the high radioactive burden. To overcome this challenge, we aimed to show the feasibility of an absorption,...
article 2020
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Kleiber, N. (author), Calvier, E. (author), Mooij, M.G. (author), Krekels, E.H.J. (author), Vaes, W.H.J. (author), Tibboel, D. (author), Knibbe, C.A.J. (author), de Wildt, S.N. (author)
OBJECTIVES: Decreasing morbidity and mortality by rationalizing drug treatment in the critically ill is of paramount importance but challenging as the underlying clinical condition may lead to large variation in drug disposition and response. New microtracer methodology is now available to gain knowledge on drug disposition in the intensive care...
article 2019
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van de Steeg, E. (author), Schuren, F.H.J. (author), Nooijen, I.H.G. (author), Erpelinck, S. (author), Scott Obach, R. (author), Vaes, W.H.J. (author)
Gut microbiota plays a major role in metabolizing xenobiotics into active, inactive or toxic metabolites, thereby influencing pharmacokinetics, efficacy and toxicity profiles of prescribed drugs, which is currently being underexplored.
public lecture 2019
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van de Steeg, E. (author), Schuren, F.H.J. (author), Obach, R.S. (author), van Woudenbergh, C. (author), Walker, G.S. (author), Heerikhuisen, M. (author), Nooijen, I.H.G. (author), Vaes, W.H.J. (author)
Colon microbiota-based drug metabolism has received little attention thus far in the process of drug development, whereas the role of gut microbiota in clinical safety and efficacy of drugs has become more clear. Many of these studies have been performed using animal studies, but the translational value of these data with respect to drug...
article 2018
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de Ligt, R. (author), van Duijn, E. (author), Grossouw, D. (author), Bosgra, S. (author), Burggraaf, J. (author), Windhorst, A. (author), Peeters, P.A.M. (author), van der Luijt, G.A. (author), Alexander-White, C. (author), Vaes, W.H.J. (author)
A clinical pharmacokinetic study was performed in 12 healthy women to evaluate systemic exposure to aluminum following topical application of a representative antiperspirant formulation under real-life use conditions. A simple roll-on formulation containing an extremely rare isotope of aluminum (26 Al) chlorohydrate (ACH) was prepared to...
article 2018
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Mooij, M.G. (author), van de Steeg, E. (author), van Rosmalen, J. (author), Windster, J.D. (author), de Koning, B.A.E. (author), Vaes, W.H.J. (author), van Groen, B.D. (author), Tibboel, D. (author), Wortelboer, H.M. (author), de Wildt, S.N. (author)
Human hepatic membrane-embedded transporter proteins are involved in trafficking endogenous and exogenous substrates. Even though impact of transporters on pharmacokinetics is recognized, little is known on maturation of transporter protein expression levels, especially during early life. We aimed to study the protein expression of 10...
article 2016
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Nohynek, G.J. (author), Skare, J.A. (author), Meuling, W.J.A. (author), Wehmeyer, K.R. (author), de Bie, A.T.H.J. (author), Vaes, W.H.J. (author), Dufour, E.K. (author), Fautz, R. (author), Steiling, W. (author), Bramante, M. (author), Toutain, H. (author)
Systemic exposure was measured in humans after hair dyeing with oxidative hair dyes containing 2.0% (A) or 1.0% (B) [14C]-p-phenylenediamine (PPD). Hair was dyed, rinsed, dried, clipped and shaved; blood and urine samples were collected for 48 hours after application. [14C] was measured in all materials, rinsing water, hair, plasma, urine and...
article 2015
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Garner, C.R. (author), Park, K.B. (author), French, N.S. (author), Earnshaw, C. (author), Schipani, A. (author), Selby, A.M. (author), Byrne, L. (author), Siner, S. (author), Crawley, F.P. (author), Vaes, W.H.J. (author), van Duijn, E. (author), de ligt, R. (author), Varendi, H. (author), Lass, J. (author), Grynkiewicz, G. (author), Maruszak, W. (author), Turner, M.A. (author)
Aims The aims of the study were to compare [14C]-paracetamol ([14C]-PARA) paediatric pharmacokinetics (PK) after administration mixed in a therapeutic dose or an isolated microdose and to develop further and validate accelerator mass spectrometry (AMS) bioanalysis in the 0-2 year old age group. Methods [14C]-PARA concentrations in 10-15 μl...
article 2015
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Turner, M.A. (author), Mooij, M.G. (author), Vaes, W.H.J. (author), Windhorst, A.D. (author), Hendrikse, N.H. (author), Knibbe, C.A.J. (author), Körgvee, L.T. (author), Maruszak, W. (author), Grynkiewicz, G. (author), Garner, R.C. (author), Tibbocl, D. (author), Park, B.K. (author), de Wildt, S.N. (author)
Important information gaps remain on the efficacy and safety of drugs in children. Pediatric drug development encounters several ethical, practical, and scientifîc chaflenges One barrier to the evaluation of medicines for children is a lack of Innovative methodologies that have been adapted to the needs of chiIdren This article presents our...
article 2015
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Bosgra, S. (author), Vlaming, M.L.H. (author), Vaes, W.H.J. (author)
Non-linearities occur no more frequently between microdose and therapeutic dose studies than in therapeutic range ascending-dose studies. Most non-linearities are due to known saturable processes, and can be foreseen by integrating commonly available preclinical data. The guidance presented here may support decision making on incorporating a...
article 2015
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Mooij, M.G. (author), Vaes, W.H.J. (author)
article 2014
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van Duijn, E. (author), Sandman, H. (author), Grossouw, D. (author), Mocking, J.A.J. (author), Coulier, L. (author), Vaes, W.H.J. (author)
The increasing role of accelerator mass spectrometry (AMS) in biomedical research necessitates modernization of the traditional sample handling process. AMS was originally developed and used for carbon dating, therefore focusing on a very high precision but with a comparably low sample throughput. Here, we describe the combination of automated...
article 2014
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Mooij, M.G. (author), van Duijn, E. (author), Knibbe, C.A.J. (author), Windhorst, A.D. (author), Hendrikse, N.H. (author), Vaes, W.H.J. (author), Spaans, E. (author), Fabriek, B.O. (author), Sandman, H. (author), Grossouw, D. (author), Hanff, L.M. (author), Janssen, P.J.J.M. (author), Koch, B.C.P. (author), Tibboel, D. (author), de Wildt, S.N. (author)
Results: Ten infants (aged 0.1–83.1 months) were included; one was excluded as he vomited shortly after administration. In nine patients, [14C]AAP and metabolites in blood samples were detectable at expected concentrations: median (range) maximum concentration (Cmax) [14C]AAP 1.68 (0.75–4.76) ng/L, [14C]AAP-Glu 0.88 (0.34–1.55) ng/L, and [14C...
article 2014
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van Schalkwijk, D.B. (author), Pasman, W.J. (author), Hendriks, H.F.J. (author), Verheij, E.R. (author), Rubingh, C.M. (author), van Bochove, K. (author), Vaes, W.H.J. (author), Adiels, M. (author), Freidig, A.P. (author), de Graaf, A.A. (author)
Dietary medium chain fatty acids (MCFA) and linoleic acid follow different metabolic routes, and linoleic acid activates PPAR receptors. Both these mechanisms may modify lipoprotein and fatty acid metabolism after dietary intervention. Our objective was to investigate how dietary MCFA and linoleic acid supplementation and body fat distribution...
article 2014
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Schrieks, I.C. (author), van Berg, R. (author), Sierksma, A. (author), Beulens, J.W.J. (author), Vaes, W.H.J. (author), Hendriks, N.F.J. (author)
Aims: To evaluate the effect of acute and chronic consumption of red wine or de-alcoholized red wine with a similar antioxidant capacity on plasma total antioxidant capacity (TEAC), nuclear factor-κB (NF-κB) activity and F2-isoprostanes (8-iso-PGF2α) in healthy men. Methods: Nineteen healthy men with an increased waist circumference (≥94 cm) and...
article 2013
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