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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 32 (1995), S. 0 
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 7 (1977), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Sera from 204 patients with acute or former reactions following penicillin treatment were investigated by RAST with specificity for benzylpenicilloyl and phenoxymethyl-penicilloyl. The IgE antibody levels were followed up for of more than 2 years. Positive results could be observed at the time of the acute reactions and the weeks following; later on the amounts of specific IgE decreased, with negative RAST results after months or years in many cases. Occasionally negative RAST results occurred within 30 days; on the other hand high levels of specific IgE persisted for years in some patients. Total serum IgE measured by RIST and the RAST results showed similar patterns, with mean levels of 568 u/ml between 0 and 30 days after the penicillin allergic reaction, 286 u/ml between 30 days and 1 year, and 195 u/ml in cases after 1 year corresponded well with the observed decline in specific IgE.Skin tests performed with penicilloyl-polylysine in 118 patients showed an overall correlation of 91.5% with the RAST results. Differences between the two test systems were observed in patients with a long interval between the test and the last allergic attack. None of the patients with proved penicillin allergy had atopic diseases or a history of atopy.On the basis of these findings it is suggested that the determination of both circulating specific IgE and total IgE should be of great value for diagnostic purposes during acute drug reactions and in the months immediately afterwards.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 22 (1992), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: During the last few years Limulus Amoebocyte Lysate (LAL) has been extensively used to detect minimal amounts of endotoxins of Gram-negative bacteria in products of the pharmaceutical industry, in food stuff, body fluids, house dust and room air. LAL is produced from cells of the haemolymph (amoebocytes) of the horseshoe crab (Limulus polyphemus), which respond with an extremely sensitive clotting system upon contact with endotoxins. In this study we demonstrate by typical case history, positive skin test and ELISA the occurrence of Type I allergy to LAL in a patient suffering from conjunctivitis and rhinitis at work.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Penicillamine-polylysine, benzylpenicillanyl-human serum albumin and ampicillin-polymers were coupled to CNBr-activated paper discs and used in addition to penicilloyl G and penicilloyl V discs in RAST investigations. Sera from sixty patients with case histories of penicillin allergy and with positive or negative skin tests to different penicillin determinants and from seventeen subjects with atopic diseases caused by allergens other than penicillin were tested. The penicilloyl-(‘major’ determinant) specific RAST (Phadebas RAST® Penicilloyl G and V) was positive in twenty out of twenty-four patients with positive skin tests to penicilloyl-polylysine, in eight out of twelve patients with sole skin reactivity to ‘minor’ determinants, and in five out of twenty-four patients with negative skin tests to all antigens used. The penicillamine-specific RAST was the only positive in vitro test in four patients with negative skin tests (two) or sole positive skin reactivity to ‘minor’ determinants (two), whereas benzylpenicillanyl and ampicillin-polymer discs added no more information than the penicilloyl structures in all patients tested. Antibodies specific to ‘minor’ determinants apparently show strong in vitro cross-reactivity with the penicilloyl determinant. It is, therefore, concluded that ‘minor’ determinant specific conjugates are of marginal importance for in vitro diagnosis of penicillin-allergic patients.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background and Objective The mechanisms operative in specific immunotherapy (SIT) of Type I allergy are not completely understood. In the present study we evaluated immunological changes during SIT in pollinosis.Method Eight patients suffering from pollinosis (monosensitized to grass pollen) were treated with conventional SIT. All subjects had IgE specific for Phi p 1. a major allergen of timothy grass. In vitro changes in the immunological reactivity to grass pollen extract and to recombinant Phi p 1 were evaluated. Subjects were examined at three occasions: before, after 3 months and after I year of SIT.Results Serological analysis revealed a marked increase of grass pollen- and Phi p 1-specific IgG, titres of specific IgE did not change significantly. Lymphoproliferative responses to grass pollen extract and rPhl p 1 were reduced already after 3 months of treatment. Accordingly, the cloning efficiency for Ph1 p 1-specific T-cell clones (TCC) dropped markedly in all patients. The majority of allergen-specific TCC raised before SIT revealed a TH2-like pattern of cytokine production. TCC established after SIT revealed TH1 characteristics. This shift was due to a decrease in IL-4 rather than an increase in IFN-production by T cells. Investigations of the epitopes recognized by T cells before and after SIT did not reveal the outgrowth of new (ldquo;protecting”) specificities. We could not observe induction of allergen-speeific CD8+ lymphocytes (supressor cells).Conclusion Our data indicate that — on the level of TH lymphocytes — SIT induces tolerance to the allergen and a modulation of the cytokine pattern produced in response to allergen stimulation.
    Type of Medium: Electronic Resource
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  • 6
    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 Animal hair/dander proteins frequently cause Type I hypersensitivities. Species-specific and broadly cross-reacting allergens have been characterized in the past.Methods Sera from eight individuals suffering from symptoms due to exposure to deer and deer-derived products were investigated by immunoblotting. Extracts from deer, dog, cat, horse, rabbit and cow, respectively, were tested for IgE-binding. To reveal cross-reactivities patients' sera were preadsorbed with these extracts prior to testing with deer extract.Results Deer allergens with the molecular mass of 22 and 25 kD (major allergens), as well as 60 kD were identified. The 22 and 25 kD allergens are cross-reactive with the corresponding cow allergens.Conclusions Deer allergy is a rare sensitization mainly affecting persons exposed to deer, who displayed an atopie disposition. From our results it can be assumed that this hypersensitivity is partly associated with allergy to cow dander.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 24 (1994), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In this study, sera collected from 50 patients (24 females, 26 males) with Type I allergy to house dust mite (Dermatophagoides pteronyssinus) were investigated for IgE antibodies specific for eight different mite species including storage mites of the families Pyroglyphidae, Glycyphagidae and Acaridae. According to their environment the patients were divided into two groups. Group I consisted of 24 (11 women, 13 men) farmers working and living in rural regions of Austria (Styria. Lower Austria), group II included 26 citizens of Vienna (13 women, 13 men). As expected, RAST investigations revealed a higher rate of sensitization to storage mites in the farmer group. Comparing the two patient groups, sensitization to Lepidoglyphus destructor and Tyrophagus putreus was markedly increased in the farmer group. However, the sensitizalion rate to storage miles was also considerably high in city dwellers. Elevated levels of IgE specific for Euroglyphus maynei were more frequently observed in the urban collective. RAST-inhibition experiments suggest a partial crossreactivity between house dust mites and storage mites. In their living environment, patients with perennial Type I allergy are exposed to multiple different mite-derived allergens in addition to the well-known house dust mite allergens. These allergens lead to sensitization and are therefore of clinical importance.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 10 (1981), S. 0 
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The paper deals with the analytical plotter and its impact on numerical photogrammetry. A short introductory section is followed by examples of the use of a Zeiss (Oberkochen) Planicomp C100 in analytical aerial triangulation, close range photogrammetry and the generation of digital height models. The examples demonstrate the suitability of the analytical plotter for numerical photogrammetry. Computer assistance and computer control allow for advanced data acquisition of high accuracy and speed. In addition, the minicomputer controlling the analytical plotter can be used for subsequent data processing. As a result, projects involving numerical photogrammetry can be carried out entirely in-house, without the need of an external computer.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméLe restituteur analytique et la photogrammétrie numérique. On cite des applications du Planicomp C100: aérotriangulation analytique, photogrammétrie à courte distance, constitution de modéles numériques de terrain. Efficacité, rendement, haute exactitude, tels sont les avantages du restituteur analytique. On peut d'autre part bénéficier de l'ordinateur pour toutes sortes de traitements ultérieurs.〈section xml:id="abs1-3"〉〈title type="main"〉ZusammenfassungDer Beitrag beschäftigt sich mit dem Analytischen Plotter (AP) und seiner Auswirkung auf die Numerische Photogrammetrie. Nach einem kurzen Einführungsteil wird über den Einsatz eines Zeiss (Oberkochen) Planicomp C100 in der Analytischen Aerotriangulation, in der Nahbereichsphotogrammetrie und beim A ufbau Digitaler Höhenmodelle berichtet. Die Beispiele veranschaulichen die Eignung des AP für die numerische Photogrammetrie. Einerseits erlauben Rechnerstützung und Rechnersteuerung eine allgemeine, genaue und schnelle Datengewinnung. Darüberhinaus aber ermöglicht der, für die Steuerung des AP verfügbare Minicomputer die rechnerische Weiterverarbeitung der Messdaten. Auf diese Weise können numerisch-photogrammetrische Projekte ohne Einsatz eines externen Computers vollständig bearbeitet werden.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 2 (1977), S. 0 
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Munksgaard International Publishers
    Allergy 58 (2003), S. 0 
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: Millet has been reported to induce not very frequent but severe anaphylactic reactions following ingestion. Seven individuals who all kept cage birds experienced allergic reactions after ingestion of millet-containing food.Methods: We investigated the immunoglobulin E (IgE)-reactivity of these individuals to millet employing immunoblotting, RAST and skin prick tests. As the sensitization possibly occurred via the inhalant route we investigated millet-specific IgE levels of 16 additional sera from bird keepers with proven atopy, in retrospect.Results: All patients who had experienced reactions after ingestion of millet displayed millet-specific IgE. Sixty-three percent of the atopic bird keepers possessed millet-specific IgE. By means of immunoblotting three major allergens in millet extract were detected.Conclusions: Our results indicate that millet plays an important role as inhalant allergen for atopic bird keepers. A sensitization to millet may subsequently also elicit food allergy.
    Type of Medium: Electronic Resource
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