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  • 1
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Eosinophil peroxidase (EPO) is an eosinophilic basic protein, which leads to increased permeability and damage of bronchial epithelial cells in asthma.Objective As little is known about its local expression and release in humans the intracellular expression in lung and peripheral eosinophils and the concentrations of EPO in bronchoalveolar lavage (BAL) fluid and serum was investigated in patients with asthma.Methods Twelve mild atopic asthmatic and nine control subjects underwent segmental sham and allergen challenge. EPO concentrations in BAL fluid and serum were determined by immunoassay and flow cytometry was used to determine the intracellular expression of EPO in BAL-derived and peripheral eosinophils.Results In asthmatic patients a large increase in BAL eosinophils – total cells: median 9.5 × 106 (range: 0.5 to 455.0 × 106); relative: 38% (1 to 91%) – was detectable 24 h following allergen challenge, but peripheral blood eosinophil counts did not change. Concentrations of EPO in BAL fluid increased from 1 µg/L (1.0 to 6.8 µg/L) to 42 µg/L (5.6 to 379.6 µg/L; P 〈 0.01) after allergen but not after saline challenge (1.5 µg/L; 1.0 to 21.9 µg/L), whereas in control subjects all measurements were below the detection limit. Serum concentrations of EPO increased slightly from 18.3 µg/L (3.0 to 56.8 µg/L) to 27 µg/L (3.8 to 133.9 µg/L; P 〈 0.05) 24 h after allergen challenge in asthmatic patients. Furthermore, the intracellular expression of EPO (measured as mean fluorescence intensity) was decreased in BAL eosinophils compared with blood eosinophils (mean fluorescence intensity 29 (7 to 71) vs. 48 (20 to 85); P 〈 0.01) after allergen challenge.Conclusion The finding of increased EPO concentrations in the BAL fluid and decreased intracellular EPO expression in pulmonary eosinophils of asthmatic patients reflects the allergen-triggered release of EPO into the bronchial space.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Respiration Physiology 9 (1970), S. 311-317 
    ISSN: 0034-5687
    Keywords: Arterial blood ; Oxygen pressure Carbon dioxide ; PH Haematocrit ; Pregnancy Haemoglobin ; Standard bicarbonate ; pressure P"5"0 Electrolytes
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Pleural mesothelioma ; Prospective therapeutic study ; Combined modality treatment ; Prognostic variables
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Between March 1981 and February 1985, 93 out of 132 patients with a histologically confirmed diagnosis of malignant pleural mesothelioma were eligible for therapy and were prospectively assigned to receive either combined therapy or best supportive care, according to their personal preferences. Fifty-seven patients underwent multimodal therapy including surgical resection where possible, polychemotherapy, and radiation therapy in case of partial remission. Thirty-six patients received maximal supportive care only, as did 39 patients who were not eligible for treatment. The median survival was 13 months for treated patients compared to 7 for those receiving best supportive care and 5 for patients not amenable to treatment. Median progress-free survival was 6, 2, and 1 month respectively. Surgical resection did not prolong life expectancy within the treated group. In view of significant differences in the distribution of various cofactors over the two study groups, stepwise Cox model analyses were performed. Prognostic nontreatment variables related to prolonged survival were: good performance status, stage I and II, absence of chest pain, age below 50 years, and epithelial histology. Although in the Cox model analyses the survival improvement of patients being treated could be greatly attributed to other cofactors, multimodal treatment showed some prolongation of life expectancy.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 39 (1961), S. 939-942 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Vergleichende Bestimmungen des „Atemgrenzwertes“ mittels Pumpe ergaben in Abhängigkeit vom Basisvolumen des geschlossenen Spirometersystems, von der Ventilationsfrequenz und von der Größe des Ventilationsvolumens Differenzen bis zu — 22% gegenüber dem Sollwert. Die Angabe, das von uns verwendete geschlossene Spirometer-system habe eine lineare „Frequency-response“ bis 125 Atemzüge je Minute, trifft nicht zu. Für Vergleichsuntersuchungen und die Aufstellung von Standardwerten ist es notwendig, sich über die dynamischen Eigenschaften des Registriersystems zu unterrichten, um kritische Frequenzbereiche bei der Messung des Atemgrenzwertes zu vermeiden.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1440
    Keywords: β-Receptorblocking Eye-drops ; Bronchial Asthma ; Lung Function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Lung function was studied double blind and randomized in 5 patients with mild asthma bronchiale and 10 normal adults before and 30, 60 and 90 minutes after one drop of 0.5% Timolol, 0.6% Metipranolol or 0.9% NaCl in each eye. In the asthmatics bronchoconstriction was seen after both β-receptor blocking agents, more pronounced after Timolol than after Metripranolol. There was a decrease in the forced expiratory volume in one second (FEV1.0) of 32, respectively 18%. No changes were observed in the normal subjects. In a separate studie no significant changes were seen in the mean values of 10 other asthmatic subjects after 1% Pindolol, 3% Pilocarpin or 0.9% NaCl. However, in two patients FEV1.0 was reduced by 15% and 20% of the control values after applying Pindolol. In summary, not only β-receptorblocking agents without ISA produce a bronchoconstriction in asthmatic subjects, but also β-blocker with ISA in individual cases.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 72 (1994), S. 772-774 
    ISSN: 1432-1440
    Keywords: Type A natriuretic peptide (CDD/ ANP-99-126) ; Bronchodilation ; Asthma therapy ; Lung function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Type A natriuretic peptide (CDD/ANP99-126) in its circulating form was analyzed with respect to the localization of its bronchodilating effects in asthmatic subjects in vivo. The intravenous infusion of 5.7, 11.4, and 17.1 pmol kg−1 min− CDD/ANP-99-126 caused a significant bronchodilation of both central and peripheral airways. While the localization of the bronchodilating effects was similar to β2-agonists, an improvement in lung function parameters comparable to these substances was not observed. But other members of the natriuretic peptide family may reveal a stronger bronchodilating potency.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 70 (1992), S. 637-657 
    ISSN: 1432-1440
    Keywords: Pulmonary surfactant ; Phospholipids ; Surfactant proteins ; Alveolar stability ; Air pollution ; Pulmonary defense ; Adult respiratory distress syndrome ; Surfactant therapy ; Bronchoalveolar lavage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Pulmonary surfactant is synthesized and secreted by alveolar type II cells and constitutes an important component of the alveolar lining fluid. It comprises a unique mixture of phospholipids and surfactant-specific proteins. More than 30 years after its first biochemical characterization, knowledge of the composition and functions of the surfactant complex has grown considerably. Its classically known role is to decrease surface tension in alveolar air spaces to a degree that facilitates adequate ventilation of the peripheral lung. More recently, other important surfactant functions have come into view. Probably most notable among these, surfactant has been demonstrated to enhance local pulmonary defense mechanisms and to modulate immune responses in the alveolar milieu. These findings have prompted interest in the role and the possible alterations of the surfactant system in a variety of lung diseases and in environmental impacts on the lung. However, only a limited number of studies investigating surfactant changes in human lung disease have hitherto been published. Preliminary results suggest that surfactant analyses, e.g., from bronchoalveolar lavage fluids, may reveal quantitative and qualitative abnormalities of the surfactant system in human lung disorders. It is hypothesized that in the future, surfactant studies may become one of our clinical tools to evaluate the activity and severity of peripheral lung diseases. In certain disorders they may also gain diagnostic significance. Further clinical studies will be necessary to investigate the potential therapeutic benefits of surfactant substitution and the usefulness of pharmacologic manipulation of the secretory activity of alveolar type II cells in pulmonary medicine.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Lung 149 (1973), S. 151-155 
    ISSN: 1432-1750
    Keywords: Corticosteroides ; Diffusing Capacity ; Lung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Changes in the pulmonary diffusing capacity for CO (DlCO) in pregnant women have been reported previously. According to these findings, the effects of various steroid hormones (Oestriol succinate, Progesterone, Prednisolone succinate and Aldactone®) were tested by the single-breath technique of Ogilvie, Forster, Blakemore and Morton. Measurements in ten healthy women were performed one, two and twenty-four hours after intravenous administration of 40 mg Oestriolsuccinat. Significant decreases of 8.8% in the first hour and 12.4% in the second were found. The values normalized within 24 hours. Controls of DlCO were taken 24 and 48 hours after the daily i. m. injection of 50 mg progesterone for two days in ten healthy young women. No change was observed in the first 24 hours. However, there was a slight significant increase of the mean value by 4.2% after 48 hours. The effect of 100 mg Prednisolone succinate and 200 mg Aldactone® were tested because of their great importance in the management of cardiopulmonary diseases. No substance showed an effect on DlCO, one and two hours after intravenous administration.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Der Internist 40 (1999), S. 476-485 
    ISSN: 1432-1289
    Keywords: Schlüsselwörter Mukoviszidose ; Genetik ; Zystische Fibrose ; Genetik ; CFTR-Gen ; Genetik ; Mukoviszidose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zum Thema Die Mukoviszidose gehört zu den monogenetischen Erbkrankheiten mit autosomal-rezessivem Erbgang, hat eine vergleichsweise hohe Inzidenz von 1:2500 Neugeborene, besonders in der kaukasischen Bevölkerung, und zeichnet sich durch eine Vielfalt von Symptomen aus. Diese haben ihre gemeinsame Ursache in einer mehr oder weniger ausgeprägten Dysfunktion der Chloridkanäle sezernierender Epithelien mit der Folge von eingedicktem und viskösem Sekret. In den vergangen 10 Jahren seit der Identifizierung des CFTR-Gens (Cystic Fibrosis Transmembrane Conductance Regulatory) sind nicht weniger als 800 verschiedene Genmutanten entdeckt worden. Die klinische Symptomatik ist vor allem durch den betroffenen Respirations- und Gastrointestinaltrakt geprägt, des weiteren sind als Folge der Mukoviszidose ca. 95% erkrankter Männer und ca. 20% erkrankter Frauen infertil. War früher die Lebenserwartung auf das Kindesalter begrenzt und vor kurzem noch auf ca. 20–21 Jahre, geht man heute davon aus, daß bei optimaler Betreuung ca. 80% der Betroffenen die Chance haben, das 45. Lebensjahr zu erreichen. Somit wird die ursprüngliche Kinderkrankheit zur einer Erkrankung des Erwachsenenalters. Über Ätiologie, Pathogenese, Diagnostik, Klinik und Therapie wird an dieser Stelle ein Überblick gegeben. Ausdrücklich sei auf mehrere Internet-Adressen, über die man Kontakt zu entsprechenden Betreuungszentren aufnehmen sowie den letzten Stand der Mutationen finden kann, hingewiesen.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-2013
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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