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Klipstein-Grobusch, K. (author), Grobbee, D.E. (author), den Breeijen, J.H. (author), Boeing, H. (author), Hofman, A. (author), Witteman, J.C.M. (author)Free iron has been implicated in lipid peroxidation and ischemic myocardial damage, and it has been suggested that iron is an independent risk factor for myocardial infarction. The authors investigated whether dietary iron is associated with an increased risk of fatal and nonfatal myocardial infarction in the Rotterdam Study, a community-based...article 1999
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Centraal Instituut voor Voedingsonderzoek TNO TNO Voeding (author), van den Berg, H. (author)Chemicals/CAS: Homocysteine, 454-28-4; Proteins; Pyridoxic Acid, 82-82-6; Pyridoxine, 65-23-6article 1999
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Oostenbrug, G.S. (author), Mensink, R.P. (author), van Houwelingen, A.C. (author), Al, M.D.M. (author), Hornstra, G. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Objective: Our purpose was to investigate whether plasma lipid-soluble antioxidant levels during the third trimester of pregnancy and immediately after birth are altered in women with pregnancy-induced hypertension. Design: Nested case-control study of women with pregnancy-induced hypertension. Subjects: A group of 23 women with (mild) pregnancy...article 1998
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- Naaborg, R. (author), TNO Preventie en Gezondheid (author) article 1998
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Veltman, J.A. (author), Gaillard, A.W.K. (author), TNO Technische Menskunde (author)The sensitivity of physiological measures to mental workload has been investigated in a flight simulator. Twelve pilots had to fly through a tunnel with different levels of difficulty. Additionally, they had to perform a memory task with four levels of difficulty. The easiest memory task was combined with the easiest tunnel task and the most...article 1998
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de Maat, M.P.M. (author), Kastelein, J.J.P. (author), Jukema, J.W. (author), Zwinderman, A.H. (author), Jansen, H. (author), Groenemeier, B. (author), Bruschke, A.V.G. (author), Kluft, C. (author), Gaubius instituut TNO (author)Increased plasma fibrinogen levels have been identified as a risk indicator for myocardial infarction, stroke, and thrombosis. Both environmental and genetic factors make an important contribution to plasma fibrinogen levels in humans. In the present study we evaluated, in patients with serum cholesterol levels between 4 and 8 mmol/L, the...article 1998
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Weststrate, J.A. (author), van het Hof, K.H. (author), van den Berg, H. (author), te Velthuis-te-Wierik, E.J.M. (author), de Graaf, C. (author), Zimmermanns, N.J.H. (author), Westerterp, K.R. (author), Westerterp-Plantenga, M.S. (author), van de Verboeket-Venne, W.P.H.G. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Objectives: To compare the effects of free access to reduced fat products or their full fat equivalents on fat and energy intake, body weight, plasma lipids and fat-soluble antioxidants concentrations and haemostasis variables. Design: A multicentre open randomised controlled trial in which intervention and control groups were followed in...article 1998
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Stergiopulos, N. (author), Westerhof, B.E. (author), Westerhof, N. (author), TNO Biomedical Instrumentation (author)We propose a new method to derive aortic pressure from peripheral pressure and velocity by using a time domain approach. Peripheral pressure is separated into its forward and backward components, and these components are then shifted with a delay time, which is the ratio of wave speed and distance, and added again to reconstruct aortic pressure....article 1998
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de Maat, M.P.M. (author), Haverkate, F. (author), Kluft, C. (author), Gaubius Instituut TNO (author)On October 1, 1997, a 1 day hot-topic workshop on C-reactive protein (CRP) was organized in Leiden, the Netherlands, aiming at further evaluating the importance of inflammation as a critical mechanism in cardiovascular disease. C-reactive protein (CRP) is an acute phase protein that is associated with risk of cardiovascular events in healthy...article 1998
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van der Bom, J.G. (author), de Maat, M.P.M. (author), Bots, M.L. (author), Haverkate, F. (author), de Jong, P.T.V.M. (author), Hofman, A. (author), Kluft, C. (author), Grobbee, D.E. (author), Gaubius Instituut TNO (author)An association between increased plasma fibrinogen and an increased risk for myocardial infarction (MI) is well established, but the nature of this association is subject to debate. Our aim was to shed light on the potentially causal nature of this association. We examined whether increased plasma fibrinogen, due to a condition that is...article 1998
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Myrup, B. (author), Jensen, T. (author), Gram, J. (author), Kluft, C. (author), Jespersen, J. (author), Deckert, T. (author), Gaubius Instituut TNO (author)OBJECTIVE - The high risk for cardiovascular disease in IDDM patients with nephropathy may be mediated by abnormal function of the vascular wall. We investigated whether heparin was able to modulate markers of vascular wall and hemostatic function in patients with incipient nephropathy. RESEARCH DESIGN AND METHODS - Thirty-five IDDM patients...article 1997
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Vogler, G.P. (author), McClearn, G.E. (author), Snieder, H. (author), Boomsma, D.I. (author), Palmer, R. (author), de Knijff, P. (author), Slagboom, P.E. (author), TNO Preventie en Gezondheid (author)This is the second in a series of three articles addressing the intersection of interests in behavioral genetics and behavioral medicine. In this article, we use risk factors for cardiovascular disease as a prototypical trait for which behavioral genetic approaches provide powerful tools for understanding how risk factors, behavior, and health...article 1997
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Brussaard, H.E. (author), Gevers Leuven, J.A. (author), Frölich, M. (author), Kluft, C. (author), Krans, H.M.J. (author), Gaubius Instituut TNO (author)Oestrogen replacement therapy is associated with a decreased risk of cardiovascular disease in postmenopausal women. Patients with non-insulin- dependent diabetes mellitus (NIDDM) have an increased cardiovascular risk. However, oestrogen replacement therapy is only reluctantly prescribed for patients with NIDDM. In a double blind randomized...article 1997
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de Maat, M.P.M. (author), Knipscheer, H.C. (author), Kastelein, J.J.P. (author), Kluft, C. (author), TNO Preventie en Gezondheid (author)An elevated plasma fibrinogen level is increasingly accepted as an independent risk indicator of cardiovascular disease. This has enhanced the interest in identifying agents that can normalize elevated plasma fibrinogen levels. One group of agents with this capacity are the fibric acid derivatives, e. g. ciprofibrate and gemfibrozil. We studied...article 1997
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de Jong-de Vos Van Steenwijk, C.C.E. (author), Imholz, B.P.M. (author), Wesseling, K.H. (author), Wieling, W. (author), TNO Biomedical Instrumentation (author)The objective of this study was to determine whether the Valsalva manoeuvre is applicable as a test for neurocardiovascular control in healthy children and teenagers. Sixty-eight 6- to 16-year-old children and teenagers performed two Valsalva manoeuvres in the sitting position. They were instructed to maintain airway pressure (strain) for 15 s...article 1997
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Kluft, C. (author), Lansink, M. (author), Gaubius Instituut TNO (author)Combined oral contraceptives (COCs) have effects on a large number of haemostasis variables. We have summarised literature data on effects of COCs containing 30-35 μg ethinyl estradiol for the third generation of progestogens (PGs): desogestrel, gestodene and norgestimate. It is concluded that about 15 variables show a shift in distribution of...article 1997
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van der Bom, J.G. (author), de Maat, M.P.M. (author), Bots, M.L. (author), Hofman, A. (author), Kluft, C. (author), Grobbee, D.E. (author), Gaubius Instituut TNO (author)As evidence accumulates to implicate fibrinogen as a risk indicator for cardiovascular disease, it is of interest to study its seasonal variation. A population based cross-sectional study was performed among participants of the Rotterdam Study, a cohort of 7983 men and women, aged 55 years and over. Fibrinogen levels were measured by the...article 1997
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van der Bom, J.G. (author), de Knijff, P. (author), Haverkate, F. (author), Bots, M.L. (author), Meijer, P. (author), de Jong, P.T.V.M. (author), Hofman, A. (author), Kluft, C. (author), Grobbee, D.E. (author), Gaubius Instituut TNO (author)Background: Impaired fibrinolytic capacity, as assessed by euglobulin clot lysis time or plasma concentration of fibrinolytic parameters, has been associated with an increased risk of myocardial infarction (MI). We studied the association of a polymorphism in the gene for TPA and of plasma concentrations of TPA (antigen and activity) with the...article 1997
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Mennen, L.I. (author), de Maat, M.P.M. (author), Schouten, E.G. (author), Kluft, C. (author), de Jong, P.T.V.M. (author), Hofman, A. (author), Grobbee, D.E. (author), Gaubius Instituut TNO (author)Coagulation factor VII activity (FVII:C) is a risk indicator for cardiovascular disease. It is related to serum-triglycerides and the R/Q353 polymorphism (alleles R and Q) in the gene coding for factor VII is strongly associated with factor VU[. The association of serum-triglycerides with factor VII may differ between the genotypes, but the...article 1997
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de Maat, M.P.M. (author), de Bart, A.C.W. (author), Hennis, B.C. (author), Meijer, P. (author), Havelaar, A.C. (author), Mulder, P.G.H. (author), Kluft, C. (author), Gaubius Instituut TNO (author)We compared intraindividual and interindividual variability in the plasma levels of fibrinogen, tissue-type plasminogen activator (TPA) antigen, plasminogen activator inhibitor (PAI) activity, and C-reactive protein (CRP) in 20 healthy, young individuals and 26 patients with stable angina pectoris (AP) who were at higher risk for cardiovascular...article 1996