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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 68 (1996), S. 478-483 
    ISSN: 1432-1246
    Keywords: Carbon black dust exposure ; Lung function testing ; Obstructive airway diseases ; Confounding variables ; Bronchial hyperresponsiveness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Spirometry, full-bodyplethysmography, and inhalation challenge tests are the most frequently used methods for lung function testing. In all, 677 examinations were performed among exposed employees at the Degussa carbon black plant in Kalscheuren/Germany using the above mentioned methods, in order to detect whether there is a measurable impact of carbon black fine dust on pulmonary function, or a higher prevalence of obstructive air-way diseases among the study candidates, and whether fine dust exposure is related to the prevalence of bronchial hyperresposiveness. Within the smokers' group carbon black dust exposure reveals a (minimal) impact upon the lung function of the study subjects. However, the impact of fine dust exposure within that group is less significant than the influence of smoking on pulmonary function. Nevertheless, smokers are displaying significant more frequently signs of obstructive airway diseases compared with nonsmokers. In the smokers' group we found 7.3% of study subjects with signs of obstructive airway diseases compared with 3.9% in the group of nonsmokers. No significant impact of fine dust exposure on lung function could be detected within former-and nonsmokers. The overall percentage of 5.1 % is not higher than that of subjects with bronchial hyperresponsiveness in other comparable studies.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 68 (1996), S. 478-483 
    ISSN: 1432-1246
    Keywords: Key words Carbon black dust exposure ; Lung function ; testing ; Obstructive airway diseases ; Confounding ; variables ; Bronchial hyperresponsiveness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Spirometry, full-bodyplethysmography, and inhalation challenge tests are the most frequently used methods for lung function testing. In all, 677 examinations were performed among exposed employees at the Degussa carbon black plant in Kalscheuren/Germany using the above mentioned methods, in order to detect whether there is a measurable impact of carbon black fine dust on pulmonary function, or a higher prevalence of obstructive air-way diseases among the study candidates, and whether fine dust exposure is related to the prevalence of bronchial hyperresposiveness. Within the smokers’ group carbon black dust exposure reveals a (minimal) impact upon the lung function of the study subjects. However, the impact of fine dust exposure within that group is less significant than the influence of smoking on pulmonary function. Nevertheless, smokers are displaying significant more frequently signs of obstructive airway diseases compared with nonsmokers. In the smokers’ group we found 7.3% of study subjects with signs of obstructive airway diseases compared with 3.9% in the group of nonsmokers. No significant impact of fine dust exposure on lung function could be detected within former- and nonsmokers. The overall percentage of 5.1% is not higher than that of subjects with bronchial hyperresponsiveness in other comparable studies.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    ISSN: 1432-1750
    Keywords: Sptum analyses ; Obstructive airway diseases ; Immunglobulins ; Proteolytic ferments ; Ferment inhibitors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Im Sputum von Patienten mit chronisch obstruktiven Atemwegserkrankungen werden unter anderem Immunglobuline, vor allem IGA sowie proteolytische Fermente und deren Inhibitoren gefunden. Bei 8 Patienten wurde im Vergleich mit dem klinischen Verlauf untersucht, ob bei täglicher Analyse dieser Parameter Rückschlüsse auf das Krankheitsbild gezogen werden können. Unsere Untersuchungen ergaben eine Zunahme des IGA-Spiegels im Sputum unter der Therapie mit Glucocorticoiden und Antibiotica bei großen täglichen Schwankungen. Die proteolytische Fermentaktivität veränderte sich nur wenig unter der Behandlung. Alpha1-Antitrypsin, als wichtigster Proteasehemmer des Organismus, spielt in der Lunge eine untergeordnete Rolle, er imponiert eher als Ausdruck der Entzündung. Sputumeigene Fermentinhibitoren scheinen bei der Inaktivierung der Proteasen im Bronchialraum in unterschiedlichen Konzentrationen zur Verfügung zu stehen. Bei allen Patienten schwankten die Meßwerte erheblich bei den täglichen Untersuchungen.
    Notes: Abstract The sputa of patients affected with chronic obstructive airway diseases contains among other things, immunoglobulins, mainly IGA as well as proteolytic ferments and inhibitors of them. We analyzed these parameters daily in 8 patients and compared the values with the clinical course of the disease to see whether the values measured allowed any conclusions on the clinical picture. Our investigations showed a rise in the IGA-level in the sputa during the administration of glucocorticoids and antibiotics but with large daily variations. Proteolytic ferment activity showed only minor alterations during this treatment. Alpha1-antitrypsin, the most important protease inhibitor in the organism, is of less importance for the lungs and is more important as a sign of inflammation. Ferment inhibitors intrinsic to the sputum seem to be available in varying concentrations in the bronchial space during inactivation of the proteases. The values measured at the daily examinations varied considerably in all patients.
    Type of Medium: Electronic Resource
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