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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Clinica Chimica Acta 120 (1982), S. 161-170 
    ISSN: 0009-8981
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Variations of serum and nasal specific IgE to Dermatophagoides pteronyssinus (Der p) during alternate periods of antigen avoidance exposure have been evaluated with an open design in a group of allergic children with asthma and rhinitis at the residential house Istituto Pio XII (Misurina, BL, Italy), at 1756 m. in the Italian Dolomites. A method based on direct incubation of allergen coupled substrate on the nasal mucosa has been employed to evaluate the levels of nasal IgE. Serum specific IgE decreased respectively from (median) 117-89.3 kU/l (P 〈 0.001) during an initial period of 3 months of allergen avoidance and from 88.2 to 78.4 kU/l (P 〈 0.0002) during a subsequent period of allergen avoidance. No significant increase in serum specific IgE was, in contrast, observed during two periods, 22 and 9 days, of antigen exposure, changing respectively from 89.3 to 88.2 and from 78.4 to 89 1 kU/l. In contrast, nasal IgE has been significantly influenced by the alternate periods of antigen exposure-avoidance, showing a decrease from 19.75 to 4.01 kU/l (P 〈 0.0001) after the initial period of avoidance, followed by an increase to 9.95 kU/l (P 〈 0.0001) after 22 days of exposure. A significant decrease to a value of 2.37 kU/l (P 〈 0.0001) was also observed during the subsequent period of avoidance, followed again by an increase to 7.87 kU/l (P 〈 0.002) after 9 days of exposure. The evaluation of the kinetics of changes in nasal specific IgE revealed a significant decrease (P 〈 0.01) as soon as antigen avoidance was implemented for 3 days. Nasal specific TgE, therefore, appears to be a more sensitive index of antigen exposure avoidance than serum IgE levels.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 27 (1997), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Eosinophil cationic protein (ECP) is one of the major, cytotoxic molecules produced by eosinophils, which can be used as a marker of allergic inflammation.Objective In this placebo-controlled study we measured nasal and serum ECP levels to verify their possible role in monitoring the efficacy of anti-inflammatory therapy in allergic chronic rhinitis in 38 children aged from 4 to 14 yr, allergic to house dust mites.Method Nasal ECP, by the method of direct incubation on nasal mucosa, and serum ECP were determined before and after 3 weeks of treatment with flunisolide nasal spray 50 μg twice/daily (13 cases, Group 1), disodium cromoglycate (DSCG) 10.4mg three times/day (15 cases, Group 2) and placebo (10 cases, Group 3). The effectiveness of therapy was evaluated clinically and correlated to serum and nasal ECP values.Results Before treatment no significant difference emerged in the clinical scores of the three groups of patients. Before and after treatment serum ECP levels were not statistically different from normal controls. Before treatment nasal ECP was significantly higher in all patients compared with controls (P 〈 0.001). Nasal ECP decreased significantly in flunisolide-treated patients (P 〈 0.01) (before therapy: median 111 μg/L, range from 33.6 to 200 μg/L; after therapy: median 36.8 μg/L, range from 2.6 to 196 μg/D, but not in DSCG-treated patients, (before therapy: median 66.2 μg/L, range from 32.3 to 200 μg/L; after therapy: median 60.4 μg/L, range from 7.9 to l44 μg/L). No significant variation was present in the placebo group. Clinical improvement was statistically significant after flunisolide therapy (P 〈 0.05), less evident after DSCG (P = 0.06).Conclusion Serum ECP in chronic allergic rhinitis has been shown to be not useful in monitoring allergic inflammation, but nasal ECP, determined by mucosal incubation, may be used to evaluate the activity of eosinophils and monitor the anti-inflammatory efficacy of therapy in chronic rhinitis.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Clinical & experimental allergy 35 (2005), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background As the main target of sublingual immunotherapy (SLIT) is to reduce at most the occurrence of adverse events (AE), safety represents a critical issue. This aspect deserves particular mention when a higher dose of allergen extract than traditional subcutaneous immunotherapy (SCIT) is required to be effective: that may be up to 500 times that employed for SCIT.Objective All published controlled studies concerning SLIT-swallow were analysed to evaluate AE rates.Methods Studies were subdivided in two groups: (i) studies using low allergen dose (LAD), i.e. ranging from 1 to 50 times the dose commonly administered with SCIT, and (ii) studies with high allergen dose (HAD), i.e. ranging from 50 to 500 times the dose administered with SCIT.Results Twenty-five studies were altogether analysed: 13 studies belonged to the low-dose group, 12 belonged to the high-dose group. We considered all patients with at least one AE. Local reactions were significantly more frequent in the LAD group than in the HAD group (P〈0.0001), while there was no difference in the rate of systemic reactions. Severe systemic reactions were never reported.Conclusion This study represents the first analysis of the safety of SLIT concerning the allergen dose employed in the treatment. There is evidence that AE occurrence is substantially not dose-dependent. This fact highlights two main clinical aspects: the elevated tolerability of SLIT in general and the safety of HAD regimen.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background Subcutaneous immunotherapy for respiratory allergy has shown a long-lasting efficacy after its discontinuation, whereas this evidence is still lacking for sublingual immunotherapy, despite the fact that it is widely used.Objective We aimed to evaluate whether a long-lasting effect of SLIT occurs, in a prospective parallel group controlled study.Methods Sixty children (mean age 8.5 years) suffering from allergic asthma/rhinitis due to mites were subdivided into two matched groups: 35 underwent a 4- to 5-year course of SLIT with standardized extract and 25 received only drug therapy. The patients were evaluated at three time points (baseline, end of SLIT and 4 to 5 years after SLIT discontinuation) regarding presence of asthma, use of anti-asthma drugs, skin prick tests and specific IgE.Results We found that in the SLIT group there was a significant difference vs. baseline for the presence of asthma (P ≤ 0.001) and the use of asthma medications (P ≤ 0.01), whereas no difference was observed in the control group. The mean peak expiratory flow result was significantly higher in the active group than in the control group after 10 years. No change was seen as far as new sensitizations were concerned. Specific IgE showed a near-significant increase (baseline vs. 10 years, P = 0.06) only in the control group.Conclusion Our study demonstrates that sublingual immunotherapy is effective in children and that it maintains the clinical efficacy for 4 to 5 years after discontinuation.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 15 (1985), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Serum and rectal total and specific IgE were measured in eleven children with atopic dermatitis and eight with atopic dermatitis and associated wheezing. Specific IgE to food and inhalant allergens in rectal washings were found in fourteen patients. Of the seventy-six allergens which gave positive results, twenty were positive in both serum and intestine, thirty in serum alone and twenty-six in intestines alone. Specific intestinal IgE were confirmed by food challenge in three out of four patients whose skin-prick test and serum RAST were both negative. Local production of these antibodies was demonstrated by the ‘double ratio’ of Dcuschl and Johansson [1], and the ‘specific activity ratio’ of Platts-Mills [2]. Positive ratios (〉 1) were obtained with both formulas for twelve of fourteen allergens tested. These data suggest that gut-associated lymphoid tissue may play a role in the pathogenesis of atopic disease.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 19 (1989), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A new method for determining IgE antibodies on mucosal surfaces has been developed with the purpose of overcoming the main problems of nasal secretion sampling and standardization. The method is based on the principle of performing the incubation of the solid-phase coupled allergen with IgE antibody directly on the mucosal surface by means of a proper applicator. About two times higher values of specific IgE have been obtained with 5 min incubation on septal mucosa, behind the internal ostium, than with 3 hr in-vitro incubation with native secretion. In a study of 53 children with allergic rhinitis and asthma and 10 healthy non-atopic controls the sensitivity and specificity of this new method were evident. Because of its reliability and easy execution the new method could be widely used in diagnosis of allergic disease. Further, it seems to offer a good opportunity to study the IgE-mediated reaction in the target organ more extensively.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1399-3038
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Parallel follow-up of clinical and inflammatory markers during sub-lingual immunotherapy (SLIT) is highly beneficial. Twenty-four children (age 4–16) monosensitized to house dust mite were randomized to receive either active or placebo SLIT for 1 yr in a double-blind placebo controlled design (Marcucci et al., Allergy 2003: 58: 657–62). Thereafter, for 2 yr they all received active treatment. Symptom scores for rhinitis, asthma, and drug usage were daily recorded. Eosinophil cationic proten (ECP) and tryptase in sputum and nasal secretions, serum and nasal mite-specific immunoglobulin E (IgE) were recorded before treatment and at 10–12 months intervals. Nasal ECP and nasal tryptase after specific nasal provocation tests were significantly reduced as compared to baseline values (p = 0.0043 and 0.0195, respectively) in the third year of active treatment. None of the other inflammatory parameters was increased. In placebo treated patients all these parameters tended to decrease only after switching to active treatment. Clinical scores did not improve in treated vs. placebo patients in the double-blind placebo-controlled phase of the study. In both cohorts a clinical benefit was observed as intra-group score reduction as compared to baseline. A significant difference was reached in patients treated for 2 yr for rhinitis and asthma (p = 0.0009 and 0.0019, respectively) but not for drug usage and in patients treated for 3 yr for rhinitis, asthma, and drug usage (p = 0.0105, 0.0048, and 0.02, respectively). SLIT in children monosensitized to mites reverted the spontaneous increase in nasal IgE and in local parameters of allergic inflammation. These outcomes were followed by a consolidated clinical improvement in the second and third year of treatment.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular 995 (1989), S. 255-258 
    ISSN: 0167-4838
    Keywords: (Trout) ; Amino acid sequence ; Hemoglobin IV
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Allergy 57 (2002), S. 0 
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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