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  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 15 (1985), S. 0 
    ISSN: 1365-2222
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: 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.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    International archives of occupational and environmental health 58 (1986), S. 269-276 
    ISSN: 1432-1246
    Schlagwort(e): Toluene diisocyanate ; Band-tape monitors ; HPLC ; Biological monitoring
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary An improved HPLC method was developed for determining the atmospheric concentration of toluene diisocyanate (TDI). 1-(2-pyridyl)-piperazine in toluene was used as reagent absorber solution together with reversed phase chromatography and a simple efficient buffer system (0.1 trifluoroacetic acid - acetonitrile, 85:15%) in an isocratic elution mode. The values for atmospheric TDI concentration obtained with two continuous band-tape monitors were checked using the values from HPLC as reference. Under identical experimental conditions the two instruments (both model 7005) gave readings varying by more than 100%. At low humidity the band-tape values were considerably lower than the HPLC values. At an absolute humidity of 11.7 gH2O/m3 (58% relative humidity) the value from instrument 1, but not instrument 2, agreed with those from HPLC. The values obtained with band-tape divices in the continuous monitoring of TDI concentration in places of work, or epidemiological studies, should be assessed with caution. HPLC offers a useful reference method for monitoring the accuracy of such devices.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    ISSN: 1432-1440
    Schlagwort(e): Emery-Dreifuss syndrome ; Autosomal dominant trait ; Humeroperoneal syndrome ; Cardiomyopathy ; Atrioventricular block ; Sudden cardiac death
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: 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.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    European archives of psychiatry and clinical neuroscience 237 (1988), S. 230-236 
    ISSN: 1433-8491
    Schlagwort(e): Emery-Dreifuss syndrome ; Autosomal dominant inheritance ; Single-fiber EMG ; Fiber type-I atrophy ; Spinal muscular atrophy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The first German family with autosomal dominant Emery-Dreifuss syndrome (EDS) is described, with electrophysiologic and myopathologic results providing evidence of a primary neurogenic disease. According to classification of the scapulo peroneal syndrome without cardiomyopathy, we conclude that there are two variants of EDS: one myopathic, the other neurogenic in origin. Therefore, the term Emery-Dreifuss muscular dystrophy should be avoided. Instead, each case of EDS should be classified as myopathic or neurogenic with X chromosome recessive or autosomal dominant inheritance.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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