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  • 1
    Electronic Resource
    Electronic Resource
    Assessment of the allergic reaction in seasonal rhinitis: acoustic rhinometry is a sensitive and objective method (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Seasonal allergic rhinitis constitutes an excellent in vivo model of an allergic mucosal inflammatory reaction. This offers the opportunity of studying the fundamentals of allergic inflammation in addition to improvement of knowledge on the basal pathophysiological mechanisms of the disease. So far, monitoring methods of disease activity and treatment efficacy have mainly been based upon subjective assessments, illustrating the impact of introducing reliable objective methods.Objective To investigate the allergic inflammatory reaction of seasonal rhinitis through different objective methods and evaluate these as indicators of disease activity and treatment efficacy.Methods Functional parameters, i.e. acoustic rhinometry and nasal metacholine challenge, and biological markers, i.e. blood eosinophil count, eosinophil cationic protein in serum (s-ECP) and nasal lavage fluid (n-ECP), were assessed before and at peak pollen season in 27 patients with grass pollen induced rhinitis. Patients were randomized to either nasal corticosteroid or placebo treatment and recorded nasal symptom scores.Results Acoustic rhinometry revealed a significant difference in favour of steroid treatment (P 〈 0.05) comparing nasal volumes before and during season. This difference primarily relied upon a decrease in the placebo group (P= 0.05). A reduction from baseline of s-ECP in the steroid group (P 〈 0.01) was obtained. N-ECP demonstrated a difference between treatment groups, although not significant. Symptom scores increased in all patients during the pollen season, although this was only significant in the placebo treated patients (P 〈 0.01). The remaining methods applied did not demonstrate further differences, either within or between treatment groups.Conclusion Our results demonstrate acoustic rhinometry to be a sensitive and objective method of assessment of nasal obstruction. Furthemore, acoustic rhinometry and s-ECP reflect the impact of nasal steroid therapy on seasonal allergic rhinitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2222.1996.tb00524.x
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  • 2
    Electronic Resource
    Electronic Resource
    Decrease in Fine T-cell Subset ratio MT2/MT1 During Steroid Reduction of Asthmatic Patients (2004)
    Oxford, UK; Malden, USA : Blackwell Science Ltd/Inc.
    Scandinavian journal of immunology 59 (2004), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Combining inhaled long-acting β-2 agonist (LABA) and inhaled corticosteroid (ICS) seems to offer asthma control at a lower dose of ICS than achieved by ICS alone. Fine mapping of T-cell surface markers by flow cytometry offers a detailed status of the individual's inflammatory response. The frequency of MT2 (CD4+CD45RA–CD62L+CD11adim) and MT1 (CD4+CD45RA–CD62L–CD11abright) cells in peripheral blood, and their ratio, has been shown to differ predictably in atopics and patients with leprosy, where MT2 correlates with a Th2 phenotype and MT1 with a Th1 phenotype. Stable asthmatics, requiring fluticasone propionate (FP) 750–1000 µg daily or equivalent, were randomized to receive, double-blinded, either Seretide®[salmeterol and fluticasone propionate (SFC, n = 16)] 50 µg/500 µg bd or FP 500 µg bd (n = 17). If asthma was controlled based on lung function and symptoms at clinic visits every 6 weeks, ICS dose was tapered until asthma exacerbated or 0 µg was reached. The frequency and ratio of MT2 and MT1 T cells of the patients was monitored at 6 week intervals. As treatment tapered, the frequency of MT2 cells decreased (P = 0038 from first to final visit), whereas that of MT1 cells increased. The ratio of MT2/MT1 decreased (P = 0049 from first to final visit). In patients receiving LABA + ICS, the fall in MT2/MT1 ratio appeared to be more pronounced than in patients receiving ICS alone. Thus, the MT2 phenotype may be associated with stable asthma, whereas an imminent exacerbation may associate with an increase in the MT1 phenotype. LABA may allow for a greater effect of FP on the MT ratio.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0300-9475.2004.01423ah.x
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of nasal allergen challenge on bronchial reactivity (1999)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 54 (1999), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1999.tb04412.x
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  • 4
    Electronic Resource
    Electronic Resource
    Intranasal and inhaled fluticasone propionate for pollen-induced rhinitis and asthma (2005)
    Oxford, UK : Munksgaard International Publishers
    Allergy 60 (2005), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Studies suggest that nasal treatment might influence lower airway symptoms and function in patients with comorbid rhinitis and asthma. We investigated the effect of intranasal, inhaled corticosteroid or the combination of both in patients with both pollen-induced rhinitis and asthma.Methods:  A total of 262 patients were randomized to 6 weeks’ treatment with intranasal fluticasone propionate (INFP) 200 μg o.d., inhaled fluticasone propionate (IHFP) 250 μg b.i.d., their combination, or intranasal or inhaled placebo, in a multicentre, double-blind, parallel-group study. Treatment was started 2 weeks prior to the pollen season and patients recorded their nasal and bronchial symptoms twice daily. Before and after 4 and 6 weeks’ treatment, the patients were assessed for lung function, methacholine responsiveness, and induced sputum cell counts.Results:  Intranasal fluticasone propionate significantly increased the percentages of patients reporting no nasal blockage, sneezing, or rhinorrhoea during the pollen season, compared with IHFP or intranasal or inhaled placebo. In contrast, only IHFP significantly improved morning peak-flow, forced expiratory volume in 1 second (FEV1) and methacholine PD20, and the seasonal increase in the sputum eosinophils and methacholine responsiveness.Conclusions:  In patients with pollen-induced rhinitis and asthma, the combination of intranasal and IHFP is needed to control the seasonal increase in nasal and asthmatic symptoms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.2005.00819.x
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of ciclesonide on allergen challenge in subjects with bronchial asthma (2003)
    Oxford, UK : Munksgaard International Publishers
    Allergy 58 (2003), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  The aim of this clinical trial was to investigate whether repeated inhalation of the new inhaled steroid ciclesonide reduces the early-phase (EAR) and late-phase (LAR) reactions after allergen challenge in patients with mild allergic asthma. Also, this study provides further data on safety and tolerance of ciclesonide.Methods:  The study was designed as a double-blind placebo-controlled randomized crossover trial. Following a baseline period, patients were randomized to either of two treatment sequences (ciclesonide/placebo, placebo/ciclesonide) each of which lasted for one week and were separated by 3–5 weeks from the alternate treatment sequence. Patients received 800 µg ciclesonide twice daily by means of a Cyclohaler. At the end of each treatment patients were subjected to an allergen challenge.Results:  Thirteen asthmatic patients (mean FEV1 of 91% predicted) who experienced an EAR and LAR after allergen challenge participated in the study. The time-average FEV1 decreases 0–2 h (2–12 h) after allergen challenge as measure of the EAR (LAR) were significantly reduced (P 〈 0.05, one-sided) from 0.426 L to 0.233 L (EAR) and from 0.443 L to 0.213 L (LAR), respectively. Thus, the study results suggest that ciclesonide significantly lowered the extent of EAR and LAR compared to placebo. Ciclesonide was well tolerated and no drug-related adverse events were reported. Cortisol excretion in 24-h urine showed no significant difference between ciclesonide and placebo.Conclusions:  The study supports the efficacy and safety of ciclesonide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.2003.00052.x
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  • 6
    Electronic Resource
    Electronic Resource
    Eosinophil markers in seasonal allergic rhinitis (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Allergy 53 (1998), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background The purpose was to study activation markers of the eosinophil granulocytes in seasonal allergic rhinitis, and the impact of topical steroid therapy thereupon. Methods Sixty-three rhinitis patients with monoallergy to grass were examined before and at peak pollen season. Blood eosinophil count, eosinophil cationic protein (ECP), and eosinophil peroxidase (EPO) in serum and nasal lavage fluid were measured. During the season, patients were randomized to treatment with intranasal fluticasone propionate 0.1 mg o.d. (n=26), 0.2 mg o.d. (n=25), or placebo (n = 12). Six healthy persons served as controls. Results During the season, all parameters, except nasal lavage ECP, increased in the placebo group (P〈0.001 – P〈0.05). Significant differences were seen between the steroid grotips and the placebo group for all parameters (P〈0.001–F〈0.05). Higher eosinophil count (P〈0.05), serum EPO (F〈0.02), and nasal lavage EPO (P〈0.05) were found in patients before season than in controls. The following winter, 44 patients returned for repeated measurement. Lower levels of nasal lavage EPO were observed for patients than levels at the beginning of the season (P〈0.0001). Conclusions Intranasal fluticasone propionate reduced inflammation of the nasal mucosa, demonstrated locally by nasal lavage ECP and EPO, and systemically by blood eosinophils, serum ECP, and serum EPO. EPO seemed more sensitive than ECP as indicator of allergic inflammation. EPO demonstrated some perennial eosinophil activity in hay fever patients, increasing locally during spring.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1398-9995.1998.tb03974.x
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  • 7
    Electronic Resource
    Electronic Resource
    Concentration and transport of nitrate by the mat-forming sulphur bacterium Thioploca (1995)
    [s.l.] : Nature Publishing Group
    Nature 374 (1995), S. 713-715 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Thioploca mats, sediment and water chemistry were studied along a shelf transect off the Chilean coast during late summer, March 1994 (Fig. 1). In the densest Thioploca mat, at 87m water depth, the wet weight of sheathed Thioploca reached nearly 1 kg m2, of which the total bacterial ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/374713a0
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