Searched for: subject:"Lung"
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Ploemen, J.P.H.T.M. (author), Kelder, J. (author), Hafmans, T. (author), van de Sandt, H. (author), van Burgsteden, J.A. (author), Salemink, P.J.M. (author), van Esch, E. (author), TNO Voeding (author)
Several cationic amphiphilic compounds are known to induce phospholipidosis, a condition primarily characterized by excessive accumulation of phospholipids in different cell types, giving the affected cells a finely foamy appearance. Excessive storage of lamellar membranous intralysosomal inclusion bodies is the hallmark for phospholipidosis on...
article 2004
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Arts, J.H.E. (author), de Koning, M.W. (author), Bloksma, N. (author), Kuper, C.F. (author), TNO Voeding (author)
The present study investigated whether airway responses of sensitized rats to trimellitic anhydride (TMA) were concentration dependent and whether these were related to irritation by TMA. Groups of BN and Wistar rats were sensitized by two dermal applications of TMA (50% w/v, followed by 25% w/v in vehicle). Controls received vehicle (acetone...
article 2004
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van Ommen, B. (author), de Bie, A.T.H.J. (author), Bär, A. (author), TNO Voeding (author)
The absorption, disposition, metabolism, and excretion of uniformly 14C-labeled α-cyclodextrin (14C-α-CD) was examined in four separate experiments with Wistar rats. In Experiment 1, 14C-α-CD (25μCi, 50mg/kg bw) was administered intravenously to four male and four female conventional rats. In Experiment 2, 14C-α-CD (25μCi, 200mg/kg bw) was given...
article 2004
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Heus, R. (author), den Hartog, E.A. (author), Kistemaker, L.J.A. (author), van Dijk, W.J. (author), Swenker, G. (author), TNO Technische Menskunde (author)
Due to more stringent requirements to protect personnel against hazardous gasses, the inspiratory resistance of the present generation of respiratory protective devices tends to increase. Therefore an important question is to what extent inspiratory resistance may increase without giving problems during physical work. In this study the effects...
article 2004
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van Helden, H.P.M. (author), Kuijpers, W.C. (author), Diemel, R.V. (author)
The purpose of the present study was to investigate: (1) the acute effects of sulfur mustard on airway, lung, and surface tension of bronchoalveolar lavage fluid (BALfluid) in guinea pigs following intratracheal (i.t.) exposure to 1LD50 of an aerosolized solution of sulfur mustard in saline, and (2) the therapeutic efficacy of i.t....
article 2004
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van Helden, H.P.M. (author), van de Meent, D. (author), Oostdijk, J.P. (author), Joosen, M.J.A. (author), van Esch, J.H.M. (author), Hammer, A.H. (author), Diemel, R.V. (author)
Airborne exposure to lung-toxic agents may damage the lung surfactant system and epithelial and endothelial cells, resulting in a life-threatening pulmonary edema that is known to be refractory to treatment. The aim of this study was to investigate in rats (1) the respiratory injury caused by nose-only exposure to perfluoroisobutene (PFIB), and ...
article 2004
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Bergers, W.W.A. (author), van de Meent-van der Horst, D. (author), Joosen, M.J.A. (author)
A technique for measurement of respiration-based lung deposition of an aerosol was investigated and subsequently applied in a pilot study with a marmoset monkey. The technique consisted of an aerosol exposure system for a marmoset using a face mask and a previously constructed monkey chair, a method for recovery of fluorescent dextrane from lung...
article 2004
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Smith-Warner, S.A. (author), Spiegelman, D. (author), Yaun, S.-S. (author), Albanes, D. (author), Beeson, W.L. (author), van den Brandt, P.A. (author), Feskanich, D. (author), Folsom, A.R. (author), Fraser, G.E. (author), Freudenheim, J.L. (author), Giovannucci, E. (author), Goldbohm, R.A. (author), Graham, S. (author), Kushi, L.H. (author), Miller, A.B. (author), Pietinen, P. (author), Rohan, T.E. (author), Speizer, F.E. (author), Willett, W.C. (author), Hunter, D.J. (author)
Inverse associations between fruit and vegetable consumption and lung cancer risk have been consistently reported. However, identifying the specific fruits and vegetables associated with lung cancer is difficult because the food groups and foods evaluated have varied across studies. We analyzed fruit and vegetable groups using standardized...
article 2003
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Arts, J.H.E. (author), Bloksma, N. (author), Leusink-Muis, T. (author), Kuper, C.F. (author)
Occupational exposure to low-molecular-weight (LMW) allergens such as acid anhydrides can result in occupational asthma, an allergic disease characterized by episodic airway obstruction, airways inflammation, and non specific airways hyperresponsiveness. Since LMW irritants can provoke rather similar effects and since most, if not all, LMW...
article 2003
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Cassee, F.R. (author), Muijser, H. (author), Duistermaat, E. (author), Freijer, J.J. (author), Geerse, E.K.B. (author), Marijnissen, J.C.M. (author), Arts, J.H.E. (author), Instituut CIVO-Toxicologie en Voeding TNO (author)
The relative importance of the three particulate matter (PM) size fractions in ambient air, i.e. coarse (2.5-10 μm), fine (0.1-2.5 μm) and ultrafine (< 0.1 μm) fractions, on the induction of adverse health effects is still unknown. Moreover, there is no straightforward relationship between ambient concentration levels, exposure (external dose)...
article 2002
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Hoek, G. (author), Brunekreef, B. (author), Goldbohm, S. (author), Fischer, P. (author), van den Brandt, P.A. (author)
Background: Long-term exposure to particulate matter air pollution has been associated with increased cardiopulmonary mortality in the USA. We aimed to assess the relation between traffic-related air pollution and mortality in participants of the Netherlands Cohort study on Diet and Cancer (NLCS), an ongoing study. Methods: We investigated a...
article 2002
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Cassee, F.R. (author), Arts, J.H.E. (author), Fokkens, P.H.B. (author), Spoor, S.M. (author), Boere, A.J.F. (author), van Bree, L. (author), Dormans, J.A.M.A. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
In the present study the effects of a 3-day inhalation exposure to model compounds for ambient particulate matter were investigated: ammonium bisulfate, ammonium ferrosulfate, and ammonium nitrate, all components of the secondary aerosol fraction of ambient particulate matter (PM), and carbon black (CB, model aerosol for primary PM). The...
article 2002
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Buitendijk, S.E. (author)
In the 'Overview of the role of antibiotics in curtailing labour and early delivery'(ORACLE I)-trial in women with premature rupture of membranes, the use of erythromycin was found to be associated with a decrease in the primary composite outcome (neonatal death, chronic lung disease or major cerebral abnormality on ultrasound; p = 0.08) and in...
article 2001
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Feron, V.J. (author), Kittel, B. (author), Kuper, C.F. (author), Ernst, H. (author), Rittinghausen, S. (author), Muhle, H. (author), Koch, W. (author), Gamer, A. (author), Mallett, A.K. (author), Hoffmann, H.D. (author), TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author)
Two independent bioassays are available which have examined the potential carcinogenicity of monomeric and polymeric methylene diphenyl diisocyanate (MDI) following long-term inhalation exposure in rats. These studies are not directly comparable, however, due to differences in design and conduct of the in-life phase, and differences in...
article 2001
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van Zijverden, M. (author), de Haar, C. (author), van Beelen, A. (author), van Loveren, H. (author), Penninks, A. (author), Pieters, R. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Some particulate matter is known to affect human health, yet the mechanism(s) by which it acts is largely unknown. One of the factors that may play a role in the immune- stimulating activity of particles is binding of allergen to particles. This may turn the particles into allergen carriers, resulting in antigen deposition within the altered...
article 2001
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van Delft, J.H.M. (author), Steenwinkel, M.-J.S.T. (author), van Asten, J.G. (author), de Vogel, N. (author), Bruijntjes-Rozier, T.C.D.M. (author), Schouten, T. (author), Cramers, P. (author), Maas, L. (author), van Herwijnen, M.H. (author), van Schooten, F.-J. (author), Hopmans, P.M.J. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
Occupational exposure to polycyclic aromatic hydrocarbons (PAH) increases the risk of developing lung cancer. Human exposure is often demonstrated by increased internal levels of PAH metabolites and of markers for early biological effects, like DNA adducts and cytogenetic aberrations. Objective: This study aimed to assess whether the current...
article 2001
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Arts, J.H.E. (author), de Koning, M.W. (author), Bloksma, N. (author), Kuper, C.F. (author), TNO Voeding (author)
Several acid anhydrides are known for their sensitizing and irritative properties. Since both irritation and respiratory allergy can cause changes of lung function, proper testing of allergen-dependent effects on the respiratory tract requires knowledge of the respiratory irritant effects. To study the latter effects, groups of female Brown...
article 2001
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Theunissen, N.C.M. (author), Veen, S. (author), Fekkes, M. (author), Koopman, H.M. (author), Zwinderman, K.A.H. (author), Brugman, E. (author), Wit, J.M. (author), TNO Preventie en Gezondheid (author)
The relationship of preterm birth to health-related quality of life (HRQoL) was examined for children aged 1 to 4 years. Three gestational age groups with a NICU history were selected, <32 weeks (n=65), 32 to 36 weeks (n=41),≥37 weeks (n=54), and a reference group from the open population (n=50). The main instrument was the TNO-AZL Preschool...
article 2001
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Reichl, F.X. (author), Walther, U.I. (author), Durner, J. (author), Kehe, K. (author), Hickel, R. (author), Kunzelmann, K.H. (author), Spahl, W. (author), Hume, W.R. (author), Benschop, H.P. (author), Forth, W. (author)
Objective: The effect of dental composite components triethyleneglycoldimethacrylate (TEGDMA) and hydroxyethylmethacrylate (HEMA), as well as mercuric chloride (HgCl2) and methylmercury chloride (MeHgCl) was investigated on the release of lactatedehydrogenase (LDH) from alveolar epithelial lung cell lines in vitro. Methods: The confluent cell...
article 2001
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Emmen, H.H. (author), Hoogendijk, E.M.G. (author), Klöpping-Ketelaars, W.A.A. (author), Muijser, H. (author), Duistermaat, E. (author), Ravensberg, J.C. (author), Alexander, D.J. (author), Borkhataria, D. (author), Rusch, G.M. (author), Schmit, B. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
HFC 134a (1,1,1,2-tetrafluoroethane) and HFC 227 (1,1,1,2,3,3,3-heptafluoropropane) are used to replace chlorofluorocarbons (CFCs) in refrigerant and aerosol applications, including medical use in metered-dose inhalers. Production and consumption of CFCs are being phased out under the Montreal Protocol on Substances that Deplete the Ozone Layer....
article 2000
Searched for: subject:"Lung"
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