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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Der Anaesthesist 45 (1996), S. 653-656 
    ISSN: 1432-055X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 56 (1978), S. 1205-1212 
    ISSN: 1432-1440
    Keywords: Bronchial asthma ; Respiratory allergy ; Allergy test ; Bronchial provocation test ; Radioallergosorbent test ; Skin test ; Asthma bronchiale ; Allergische Reaktionen des Respirationstrakts ; Allergologische Diagnostik ; Inhalativer Provokationstest ; Radioallergosorbent-Test ; Hauttest
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 87 Patienten mit Asthma bronchiale wurden allergologische Haut- und Radio-Allergo-Sorbent-Tests durchgeführt und der Atemwegswiderstand ganzkörperplethysmographisch im Leerversuch und mindestens zehnmal nach insgesamt 171 inhalativen Provokationen mit dosierten Extrakten von Hausstaub, Hausstaubmilbe, Tierepithelien, Schimmelpilz und Pollen gemessen. Hierbei ließ sich eine aktuelle klinische Relevanz der Hautreaktionen in 60% und der RAST-Reaktionen in 66% feststellen. Hauttest und RAST zeigten in 61% der Vergleichsuntersuchungen eine Konkordanz. Die Korrelation war abhängig vom Sensibilisierungsgrad, von den Allergengruppen und davon, ob positive oder negative Haut- bzw. RAST-Reaktionen vorlagen. Bezogen auf die einzelnen Allergengruppen fand sich eine gute Übereinstimmung aller drei Untersuchungsmethoden und anamnestischer Hinweise lediglich bei Pollen und Tierepithelien. Auffallend häufig kam ein abweichendes Ergebnis des Provokationstests zur Beobachtung bei Vorhandensein negativer RAST-Reaktionen auf die Allergene Hausstaub und Schimmelpilze, sowie bei positiver cutaner Reizantwort auf Hausstaubmilbe und Schimmelpilze. Als wesentliche Indikationen für den inhalativen Provokationstest bei Asthma bronchiale gelten unsichere Aussagen von Anamnese, Hauttest und RAST bei Einwirkung der Problem-Allergene Hausstaub, Hausstaubmilbe u. Schimmelpilzsporen, insbes. vor eingreifenden Therapiemaßnahmen (Hyposensibiliserung, Wohnungs-, Berufswechsel) sowie bei Verdacht auf eine verzögerte bronchiale Reaktion.
    Notes: Summary 87 patients with bronchial asthma underwent skin test, RAST and measurement of airway resistance before and after inhalation of control solution as well as at least 10 times after each of one to four bronchial provocations (making up a total of 171 tests) with extracts of house dust, house dust mite, animal dander, mould spores and pollen in increasing concentrations. An actual clinical significance of the skin test reactions was found in 60% of all cases and of the RAST results in 66% of all cases. The overall agreement between skin test results and RAST results was 61%. The correlations between the different tests depended on the degree of hypersensitivty, on the tested allergen and on whether the results of skin test and RAST, respectively, were positive or negative. There existed a good correlation between the results of all three test methods and case history only for pollen allergens and animal dander. Noticeably often negative RAST results with house dust and mould spores, as well as positive skin tests with house dust mite and mould spores could not be confirmed by the provocation test. Important indications for a bronchial provocation test in asthmatics are doubtful case history, doubtful skin test or RAST results with the problem-allergens house dust, house dust mite and mould spores; the bronchial provocation test is especially commendable when drastic or cumbersome therapeutic measures (immunotherapy, change of home, change of job) are to follow or if late asthmatic reactions are expected.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1440
    Keywords: Emery-Dreifuss syndrome ; Autosomal dominant trait ; Humeroperoneal syndrome ; Cardiomyopathy ; Atrioventricular block ; Sudden cardiac death
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary At least seven members of a family coming from southern Germany (Franconia) have manifested Emery-Dreifuss syndrome within four generations. This syndrome is characterized by slowly progressing atrophic pareses, generally in a humeroperoneal distribution, premature joint contracture, and cardiomyopathy with reduction of functional capacity. Up to now four members of this family have died from cardiac causes between the age of 39 and 46 years. Three family members have now been thoroughly examined; they showed typical muscular atrophies and contractures. The two older patients were diagnosed as having a cardiomyopathy with a complete atrioventricular block and ventricular tachycardia. Electromyographic and histological findings indicate a primary neurogenic process. Regular cardiological examinations combined with effective therapy (for example, implantation of a cardiac pacemaker and treatment with antiarrhythmic drugs) will be necessary in treating the serious arrhythmias. Progressive myocardial insufficiency required heart transplantation in one of our patients, which was successfully performed. Macroscopic and microscopic examination of the explanted heart showed a dilatative cardiomyopathy with hypertrophy and dilatation of both atria and ventricles, differences in the diameters of individual heart muscle cells, and a predominately focal interstitial fibrosis.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 58 (1980), S. 1163-1164 
    ISSN: 1432-1440
    Keywords: Hypersensitivity to insects ; Hemoglobin ; Antigenic determinant ; Bronchial asthma ; Insekten-Allergie ; Hämoglobin ; Antigendeterminante ; Asthma bronchiale
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An 99 Personen, die Kontakt mit Chironomiden-Larven oder daraus gewonnen Extrakten hatten, wurden radioimmunologische Antikörperbestimmungen, Hauttestungen und weiterführende klinische Untersuchungsverfahren durchgeführt. Etwa 1/3 der exponierten Probanden litt an einer durch spezifische IgE-Antikörper vermittelten Sensibilisierung des Respirationstrakts gegen Hämoglobin-Moleküle dieser Insektenart. Es gelang, die Antigen-Determinante eines der Hämoglobine innerhalb einer bestimmten Aminosäurensequenz zu lokalisieren. Dies stellt einen der ersten Fälle dar, in welchem die antigenwirksame Region in der Molekularstruktur eines für die Humanmedizin bedeutsamen Inhalationsantigens erkannt wurde.
    Notes: Summary 99 persons handling larvae of chironomids or their extracts were investigated by radioimmunologic methods for antibody estimation, skin tests, and complementary clinical examinations. Approximately 1/3 of the exposed subjects suffered from respiratory hypersensitivity caused by IgE antibodies specific to hemoglobin molecules of this insect species. It has been successful to locate the antigenic determinant of one of these hemoglobins within a defined amino acid sequence. These represents one of the first cases for which the antigenic active region within the molecular structure of a clinically relevant inhalent antigen has been recognized.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1440
    Keywords: Angiotensin I-converting enzyme ; Sarcoidosis ; Corticosteroid therapy ; Angiotensin I-Converting-Enzym ; Sarkoidose ; Kortikosteroidtherapie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die fluorimetrisch bestimmte Aktivität des Angiotensin I-Converting-Enzyms im Serum von 31 unbehandelten Patienten mit Sarkoidose betrug im Mittel 2,95 [s=1,76] µmol/ml × h. Sie war signifikant höher (p〈0,001) als bei 38 Gesunden (0,97 [s=0,30] µmol/ml × h), als bei 81 Patienten mit anderweitigen Lungenerkrankungen und auch im Vergleich zu 20 mit Kortikosteroiden behandelten Sarkoidose-Kranken und zu 15 Personen mit Vollremission einer Boeckschen Granulomatose. Die in 17 Fällen spontan oder durch eine Kortikosteroid-Therapie induzierte Remission der Sarkoidose ging immer mit einem Abfall, meist mit einer Normalisierung der ACE-Aktivität im Serum einher. Dem gegenüber war bei 7 der 9 unbehandelten Patienten mit gleichbleibender Symptomatik keine entsprechende Veränderung des ACE festzustellen. Die Ergebnisse belegen erstmals eine enge Korrelation der Aktivität des Krankheitsprozesses mit der Aktivität des zirkulierenden Angiotensin I-Converting-Enzyms. Daraus ergibt sich die Bedeutung des Absolutwertes und der Änderung des ACE-Serumspiegels für die Diagnostik und Verlaufsbeurteilung einer Sarkoidose. Das beschriebene Verfahren schränkt die Notwendigkeit eines operativen diagnostischen Eingriffs bei Sarkoidose weiter ein.
    Notes: Summary Serum ACE activity measured fluorimetrically was found to be 2.95±(SD) 1.76 µmol/ml × h in 31 untreated patients with sarcoidosis. It was significantly elevated (p〈0.001) in comparison to 38 healthy controls 0.97±(SD) 0.30 µmol/ml × h), 81 subjects with miscellaneous lung diseases, 20 corticosteroid treated patients with sarcoidosis and 15 subjects with resolved sarcoidosis. Resolution of sarcoidosis spontaneously or induced by corticosteroids was accompanied in all 17 cases by a decrease of serum ACE activity, in most cases, to normal values. On the other hand 7 out of 9 untreated patients with a chronic course of sarcoidosis did not show a comparable change of ACE. Our results reveal a close relationship between the activity of the disease and the level of ACE in the serum. The determination of the serum activity of ACE and its variations with time is quite useful in the diagnosis and follow-up of sarcoidosis and contributes to a further restriction of necessary operative procedures in the diagnosis of sarcoidosis.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0738
    Keywords: Key words Styrene ; Styrene-7 ; 8-oxide ; Human white blood cells ; 8-Hydroxy-2′-deoxyguanosine ; Oxidative DNA damage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Styrene-7,8-oxide (SO), the major in vivo metabolite of styrene, is a genotoxic compound and a potential carcinogenic hazard to occupationally exposed workers. The aim of the present work was to investigate the ability of styrene exposure to induce formation of 8-hydroxy-2′-deoxyguanosine (8-OHdG) in white blood cells (WBC) of boatbuilders occupationally exposed to styrene. The study of these adducts was conducted to see if styrene exposure can cause oxidative damage of DNA. The 8-OHdG/105 dG ratio from 17 styrene-exposed workers showed significant increases (mean ± SD, 2.23 ± 0.54, median 2.35, P 〈 0.001) in comparison to the controls (1.52 ± 0.45, median 1.50). However, 11 out of 17 workers who were between the ages of 32 and 60 years and had been occupationally exposed to styrene for 〉10 years showed higher 8-OHdG/105 dG ratios (2.31 ± 0.62, median 2.37) in comparison to 6 workers with 〈6 years of occupational styrene-exposure (2.11 ± 0.36, median 2.05; P 〉 0.05, no significant difference between the two groups of workers). The studies presented here provide an indication that styrene exposure can result in oxidative DNA damage.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Clinica Chimica Acta 163 (1987), S. 87-95 
    ISSN: 0009-8981
    Keywords: Anti-cellulose antibodies ; Immunoblotting ; Lung diseases
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 26 (1996), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background The rubber elongation factor in Hevea rubber (Hev b 1) is one of the most important latex allergen and is leading cause oflatex type 1 hypersensitivity in children with spina bifida.Objective The aim of this study was to define the allergenic and antigenic epitopes of Hev b 1.Methods The immunoglobulin- (Ig)E and IgG antibody binding sites on Hev b 1 allergen were delineated by enzyme linked immunosorbent assay (ELISA) using synthetic overlapping peptides covering the whole Hev b 1 sequence. In order to improve the binding capacity and specificity all peptides were biotinylated at the N-terminal end via a 6-aminohexanoic acid as spacer and then adsorbed to streptavidin pre-coated microtitre plates. Fine mapping to define the essential amino acid residues for the antibody binding was achieved by using overlapping peptides with one amino acid offset.Results It was demonstrated that the IgE epitopes were located in different regions of Hev b 1 including the C-terminal segment (121–137) and the segments with amino acid residues of 30–49 and 46–64. Two monoclonal antibodies (MoAbs) II2F3 and II4G9 raised against purified Hev b 1 recognized the C-terminal segment only. The results of epitope mapping with three rabbit antisera revealed that five positive peptides, including the epitope peptides 31–49, 46–64 and 121–137, were involved in the antibody-binding sites. Eine mapping on the segments 46–64 and 121–137 showed that the two MoAbs reacted with the peptide 125–134 in the C-terminal region, whereas the peptide with amino acids 124–134 was essential for recognition by human IgE antibodies. Epitopes to rabbit polyclonal IgG and human IgE were also found to be involved in the amino acid residues of 47–59.Conclusion Our results indicate that the most allergenic/antigenic portions of Hev b 1 allergen are the C-terminal region and the region with amino acid residues of 31–64. In both regions, the minimal IgE-binding epitope is almost identical with the IgG-binding epitope.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Chironomids (non-biting midges) are known to cause IgE-mediated hypersensitivity in man. This study compares the cross-reactivity between the chironomid midge Cladotanytarsus lewisi (lgreen nimitti), a widespread cause of allergy in the Sudan and Chironomus riparius (=thummi, CTT) where larvae are used as pet fish food and where haemoglobins were previously shown to be major allergens. As with C. riparius, immature forms of C. lewisi also contain allergenic material since skin test responses to larval, pupal and adult extracts were obtained in Sudanese individuals. Crossed radioimmunoelectrophoresis of the C. lewisi larval and pupal extracts indicate that they contain a higher proportion of the allergenic fractions than adults. Further evidence of common allergen determinants between C. lewisi and C. riparius were obtained by the demonstration of positive skin-prick tests, in Sudanese patients, to extracts of larval, adult and isolated haemoglobin extracts of C. riparius. Cross-reactivity between C. lewisi and C. riparius was also demonstrable by RAST inhibition studies. A dose-dependent inhibition was observed using both the C. lewisi adult midge RAST and the C. riparius haemoglobin RAST, the two respective antigens, and sera from individuals hypersensitive to either C. lewisi or C. riparius. Due to the immunological cross-reactivity found between these distantly related species, we conclude that chironomids should be seen as significant environmental and occupational allergens.
    Type of Medium: Electronic Resource
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