Searched for: subject%3A%22Dexamethasone%22
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de Paula Faria, D. (author), Vlaming, M.L.H. (author), Copray, S.C.V.M. (author), Tielen, F. (author), Anthonijsz, H.J.A. (author), Sijbesma, J.W.A. (author), Buchpiguel, C.A. (author), Dierckx, R.A.J.O. (author), van der Hoorn, J.W.A. (author), de Vries, E.F.J. (author)
The experimental autoimmune encephalomyelitis model is a model of multiple sclerosis that closely mimics the disease characteristics in humans. The main hallmarks of multiple sclerosis are neuroinflammation (microglia activation, monocyte invasion, and T-cell infiltration) and demyelination. PET imaging may be a useful noninvasive technique for...
article 2014
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van Mierlo, G.J.D. (author), Kuper, C.F. (author), de Zeeuw-Brouwer, M.L. (author), Schijf, M.A. (author), Bruijntjes, J.P. (author), Otto, M. (author), Ganderup, N.C. (author), Penninks, A.H. (author)
Introduction: There is a growing interest in the minipig as a non-rodent species in the safety assessment of (bio) pharmaceuticals and (agro) chemicals. For (bio) pharmaceuticals the need to evaluate the potential adverse effects on the immune system is an increasingly important aspect of safety evaluation. In the present study, cyclosporin A...
article 2013
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van der Hoeven, B.L. (author), Pires, N.M.M. (author), Warda, H.M. (author), Putter, H. (author), Quax, P.H.A. (author), Schalij, M.J. (author), Jukema, J.W. (author), TNO Kwaliteit van Leven (author)
Diabetes mellitus (DM) is a strong predictor of in-stent restenosis. This may be due to a higher level of vascular inflammation. We hypothesized that diabetic patients will benefit from dexamethasone-eluting stents, since local inflammation and consequently neointimal growth are suppressed and no systemic side effects will occur. Methods: 21...
article 2008
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Kienhuis, A.S. (author), Wortelboer, H.M. (author), Maas, W.J. (author), van Herwijnen, M. (author), Kleinjans, J.C.S. (author), van Delft, J.H.M. (author), Stierum, R.H. (author), TNO Kwaliteit van Leven (author)
A rapid decline of cytochrome P450 (CYP450) enzyme activities remains a drawback of rat hepatocyte-based in vitro cultures. Consequently, judgment of the toxic potential of compounds that need bioactivation by CYP450s may not be adequate using this model. In the present study, an improved hepatocyte-based in vitro system was developed with...
article 2007
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Kienhuis, A.S. (author), Wortelboer, H.M. (author), Hoflack, J.C. (author), Moonen, E.J. (author), Kleinjans, J.C.S. (author), van Ommen, B. (author), van Delft, J.H.M. (author), Stierum, R.H. (author), TNO Kwaliteit van Leven (author)
Sandwich-cultured primary rat hepatocytes are often used as an in vitro model in toxicology and pharmacology. However, loss of liver-specific functions, in particular, the decline of cytochrome P450 (P450) enzyme activity, limits the value of this model for prediction of in vivo toxicity. In this study, we investigated whether a hepatic in vitro...
article 2006
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Pires, N.M.M. (author), Jukema, J.W. (author), Daemen, M.J.A.P. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)
In 2001, the first human study with drug-eluting stents (DES) was published showing a nearly complete abolition of restenosis by using a sirolimus-eluting stent. This success was very encouraging to test new compounds in combination with the DES platform. Nevertheless, several other anti-restenotic compounds have been used in human clinical...
article 2006
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Schepers, A. (author), Pires, N.M.M. (author), Eefting, D. (author), de Vries, M.R. (author), van Bokel, J.H. (author), Quax, P.H.A. (author), TNO Kwaliteit van Leven (author)
Objective: The aim of this study was to assess whether the anti-inflammatory agent dexamethasone can inhibit vein graft thickening without the occurrence of serious side effects. Methods: Venous interposition grafting was performed in the common carotid artery of hypercholesterolemic ApoE3Leiden transgenic mice. Mice were treated with...
article 2006
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van den Hauwe, O. (author), Campbell, K. (author), Crooks, S.R.H. (author), Schilt, R. (author), van Peteghem, C.H. (author), TNO Kwaliteit van Leven (author)
Within the framework of a European Union (EU) research project entitled "Food Safety Screening: Synthetic Glucocorticoids (QLK1-1999-00122)," an international interlaboratory ring test was organized to compare and evaluate different liquid chromatography/mass spectrometry (LC/MS) confirmatory methods that are applied in European monitoring...
article 2005
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Verhoeckx, K.C.M. (author), Bijlsma, S. (author), Jespersen, S. (author), Ramaker, R. (author), Verheij, E.R. (author), Witkamp, R.F. (author), van der Greef, J. (author), Rodenburg, R.J.T. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)
The discovery of new anti-inflammatory drugs is often based on an interaction with a specific target, although other pathways often play a primary or secondary role. Anti-inflammatory drugs can be categorized into classes, based on their mechanism of action. In this article we investigate the possibility to characterize novel anti-inflammatory...
article 2004
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Faassen, F. (author), Kelder, J. (author), Lenders, J. (author), Onderwater, R. (author), Vromans, H. (author)
Purpose. The purpose of this work was to study the relevant physicochemical properties for the absorption of steroids. Methods. Various physicochemical properties of steroids were calculated (molecular weight, ClogP, static polar surface area [PSA], etc.). Within this series of steroids, different pharmacological groups were defined. Based on...
article 2003
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Visser, J. (author), Lentjes, E. (author), Haspels, I. (author), Graffelman, W. (author), Blauw, B. (author), de Kloet, R. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)
Background: In this study we tested the hypothesis that the increased sensitivity to glucocorticoids in chronic fatigue syndrome (CFS)-patients can be attributed to an altered functioning of their glucocorticoid receptors (GR). Methods: For this purpose, affinity and distribution of the GR were studied in purified, peripheral blood mononuclear...
article 2001
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Blankvoort, B.M.G. (author), de Groene, E.M. (author), van Meeteren-Kreikamp, A.P. (author), Witkamp, R.F. (author), Rodenburg, R.J.T. (author), Aarts, J.M.M.J.G. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The aim of the work described in this report is to develop and characterize a cell-based androgen reporter assay. For this purpose, the androgen receptor (AR) expressing human breast cancer cell line T47D was stably transfected with a luciferase gene under transcriptional control of the PB-ARE-2 androgen response element. The application of this...
article 2001
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Visser, J. (author), Graffelman, W. (author), Blauw, B. (author), Haspels, I. (author), Lentjes, E. (author), de Kloet, R. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)
Several causes have been held responsible for the chronic fatigue syndrome (CFS), including an altered hypothalamus-pituitary-adrenal gland (HPA)-axis activity, viral infections and a reduced Th1 activity. Therefore, it was investigated whether the regulation of IL-10 is different in CFS. LPS-induced cytokine secretion in whole blood cultures...
article 2001
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Visser, J. (author), Blauw, B. (author), Hinloopen, B. (author), Brommer, E. (author), Ronald De Kloet, E. (author), Kluft, C. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)
A disturbed hypothalamus-pituitary-adrenal gland axis and alterations at the immune system level have been observed in patients with chronic fatigue syndrome (CFS). Glucocorticoids are known to modulate T cell responses; therefore, purified CD4 T cells from CFS patients were studied to determine whether they have an altered sensitivity to...
article 1998
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Visser, J. (author), van Boxel-Dezaire, A. (author), Methorst, D. (author), Brunt, T. (author), de Kloet, E.R. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)
Antigen-presenting cells are thought to modulate the development of Th1 and Th2 cells by the secretion of interleukin-10 (IL-10) and IL-12. Because glucocorticoids (GC) favor the development of Th2 responses, we determined whether dexamethasone (DEX) and hydrocortisone (HC) have differential effects on lipopolysaccharide-induced IL-10 and IL-12...
article 1998
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Monshouwer, M. (author), van 't Klooster, G.A.E. (author), Nijmeijer, S.M. (author), Witkamp, R.F. (author), van Miert, A.S.J.P.A.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Despite the fact that pigs are increasingly used in pharmacological and toxicological studies, knowledge on the enzymes which metabolize xenobiotics, in particular cytochrome P450 (CYP) enzymes, in pigs is still very limited. Primary cultures of pig hepatocytes were used to characterize CYP enzymes. The characterization was performed at the...
article 1998
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Noorman, F. (author), Braat, E.A.M. (author), Barrett-Bergshoeff, M.M. (author), Barbé, E. (author), van Leeuwen, A. (author), Lindeman, J. (author), Rijken, D.C. (author), TNO Preventie en Gezondheid (author)
Recently we developed mouse monocloual antibodies (mAb) against the isolated human 175-kDa mannose receptor. In the present study we tested whether these mAb are suitable for the detection of the mannose receptor on cultured macrophages using flow cytometry and on cells in human tissues using immunohistochemistry. Human monocytes did not react...
article 1997
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Nijhuis, E.W.P. (author), Oostervink, F. (author), Hinloopen, B. (author), Rozing, J. (author), Nagelkerken, L. (author), Gaubius Instituut TNO (author)
Peripheral blood mononuclear cells (PBMC) from 40 consecutive patients entering a screening program on cognitive impairment were studied in vitro with respect to their sensitivity to dexamethasone (DEX). Phytohemagglutinin-induced proliferation by PBMC from patients with senile dementia of the Alzheimer type (SDAT) was less sensitive to the...
article 1996
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Nijhuis, E.W.P. (author), Hinloopen, B. (author), van Lier, R.A.W. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)
Human CD45RA+ ('naive') and CD45RO+ ('memory') CD4+ T cells were compared with respect to their sensitivity to dexamethasone (DEX). In three different activation pathways, i.e. (i) immobilized anti-CD3, (ii) immobilized anti-CD3 plus soluble anti-CD28 and (iii) soluble anti-CD2 plus soluble anti-CD28, naive CD4+ T cells appeared more sensitive...
article 1995
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Emeis, J.E. (author), Hoekzema, R. (author), de Vos, A.F. (author), TNO Preventie en Gezondheid (author)
In experimental animals and humans, intravenous (IV) injection of endotoxin induces large increases in circulating plasminogen activator inhibitor type-1 (PAI-1), a major inhibitor of blood fibrinolysis. A similar increase is seen after the injection of interleukin-1 (IL-1) or of tumor necrosis factor-α (TNF-α), suggesting that these cytokines...
article 1995
Searched for: subject%3A%22Dexamethasone%22
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