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Bannink, E.M.N. (author), van Sassen, C. (author), van Buuren, S. (author), de Jong, F.H. (author), Lequin, M. (author), Mulder, P.G.H. (author), de Muinck Keizer-Schrama, S.M.P.F. (author), TNO Kwaliteit van Leven (author)
Background: Besides short stature, gonadal dysgenesis leading to a lack of oestrogen is one of the main characteristics of Turner syndrome (TS). In most TS girls, puberty is induced with exogenous oestrogens. Objective: To describe the pubertal development and uterine dimensions achieved by low-dose 17β-oestradiol (17β-E2) orally started at an...
article 2009
document
Norris, L.A. (author), Brosnan, J. (author), Bonnar, J. (author), Conard, J. (author), Kluft, C. (author), Hellgren, M. (author), TNO Kwaliteit van Leven (author)
Epidemiological studies have shown that hormone therapy (HT) increases the risk of venous thromboembolism in post menopausal women. The mechanism of this increased risk is unknown; however, activation of the haemostatic system is known to contribute to the pathogenesis of venous thromboembolism. In post-menopausal women the estrogen /progestogen...
article 2008
document
TNO Defensie en Veiligheid (author), van Vliet, S.A.M. (author), Vanwersch, R.A.P. (author), Jongsma, M.J. (author), van der Gugten, J. (author), Olivier, B. (author), Philippens, I.H.C.H.M. (author)
The vigilance-enhancing agent modafinil has neuroprotective properties: it prevents striatal ischemic injury, nigrostriatal pathway deterioration after partial transsection and intoxication with 1-methyl-1,2,3,6-tetrahydropyridine. The present study determines the protective effects of modafinil in the marmoset 1-methyl-1,2,3,6...
article 2006
document
Ullmann, U. (author), Haller, J. (author), Bakker, G.C.M. (author), Brink, E.J. (author), Weber, P. (author), TNO Kwaliteit van Leven (author)
A number of studies have shown that tea catechins can inhibit intestinal iron absorption, mostly iron in the nonhaem form. This randomized, double-blind, placebo-controlled, 3-periods cross-over study examined the degree of inhibition of nonhaem iron absorption by pure crystalline epigallocatechin gallate (EGCG). The study was designed to show...
article 2005
document
Killestein, J. (author), Hoogervorst, E.L.J. (author), Reif, M. (author), Blauw, B. (author), Smits, M. (author), Uitdehaag, B.M.J. (author), Nagelkerken, L. (author), Polman, C.H. (author), TNO Preventie en Gezondheid (author)
Cannabinoids can modulate the function of immune cells. We here present the first human in vivo study measuring immune function in 16 MS patients treated with oral cannabinoids. A modest increase of TNF-α in LPS-stimulated whole blood was found during cannabis plant-extract treatment (p=0.037), with no change in other cytokines. In the subgroup...
article 2003
document
Giltay, E.J. (author), Gooren, L.J.G. (author), Emeis, J.J. (author), Kooistra, T. (author), Stehouwer, C.D.A. (author), TNO Preventie en Gezondheid (author)
Oral estrogen administration decreases plasma levels of tissue-type plasminogen activator (tPA), which may be explained by a decrease in endothelial tPA synthesis, an increase in its hepatic clearance, or both. In the present study, we determined (1) differences between oral (ie, via the liver) ethinyl estradiol and transdermal (ie, systemic)...
article 2000
document
van den Heuvel, E.G.H.M. (author), Schoterman, M.H.C. (author), Muijs, T. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The aim of this study was to investigate whether a product rich in transgalactooligosaccharides (TOS, Elix'or) stimulates true Ca absorption in postmenopausal women. The study was a double-blind, randomized crossover study, consisting of two 9-d treatment periods separated by a 19-d washout period. During the treatment periods, 12 subjects drank...
article 2000
document
de Bie, A.T.H.J. (author), van Ommen, B. (author), Bär, A. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The absorption, disposition, metabolism, and excretion of 14C-labeled γ-cyclodextrin ([14C]γ-CD) was examined in four separate experiments with Wistar rats. In experiment 1, [14C]γ-CD (25 μCi, 600 mg/kg body wt) was administered intravenously to four male and four female conventional rats. In experiment 2, [14C]γ- CD (25 μCi, 1000 mg/kg body wt)...
article 1998
document
Mannaerts, B.M.J.L. (author), Geurts, T.B.P. (author), Odink, J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The objective of this study was to compare the bioavailability of s.c. and i.m. administration of human chorionic gonadotrophin (HCG; Pregnyl®). In a randomized, single centre, three-way cross-over study, 18 healthy pituitary-suppressed volunteers were assigned to single HCG injections of 5000 and 10000 IU i.m. and 10000 IU s.c. Rate (C(max), t...
article 1998
document
van den Heuvel, E.G.H.M. (author), Muys, T. (author), Pellegrom, H. (author), Bruyntjes, J.P. (author), van Dokkum, W. (author), Spanhaak, S. (author), Schaafsma, G. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Iron absorption can be measured by the incorporation of stable iron isotopes into erythrocytes, 14 days after isotope administration. The disadvantage of this method is the high dose of isotopes needed to obtain a sufficient enrichment. Therefore, in this study cell fractions rich in young erythroid cells were prepared by using a density...
article 1998
document
Jonker, D. (author), Woutersen, R.A. (author), Feron, V.J. (author), TNO Voeding (author)
The toxicity of mixtures of chemicals with the same target organ was examined in rats using nephrotoxicants with similar or dissimilar modes of action. In a 4-wk feeding study, lysinoalanine, mercuric chloride, hexachloro-1,3-butadiene and d-limonene, each affecting renal proximal tubular cells but through different modes of action, were...
article 1996
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