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  • Industrial Chemistry  (2)
  • Acetylcholin-Receptor-Antikörper  (1)
  • Atrial myxoma  (1)
  • 1
    ISSN: 1432-1440
    Keywords: Myasthenia gravis ; Acetylcholine-receptor ; Acetylcholine-receptor antibodies ; Autoimmune disease ; Plasmapheresis ; Myasthenia gravis ; Acetylcholin-Receptor ; Acetylcholin-Receptor-Antikörper ; Autoimmunerkrankung ; Plasmapherese
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 65 Patienten mit Myasthenia gravis (MG) wurden Antikörper gegen Acetylcholin-Receptoren (ACh-R) in der IgG-Fraktion des Patienten-Serums bestimmt (Immunpräzipitations-Assay mit125Jod-α-Bungarotoxin und menschlichem ACh-R als Antigen). Bei 91% der Patienten zeigte sich eine erhöhte Antikörper-Konzentration bis zum 500fachen des oberen Referenzbereichs. Eine Kontrollgruppe von 77 Patienten mit anderen gesicherten Autoimmunerkrankungen oder positiven Antikörpern gegen Muskulatur wies in keinem Fall erhöhte ACh-R-Antikörper-Konzentrationen auf. Damit ist der in-vitro Nachweis von ACh-R-Antikörpern ein empfindlicher und hochspezifischer Test für die Diagnostik der MG. Der Test eignet sich ebenfalls für die Verlaufskontrolle unter Therapie mit Immunsuppressiva oder Plasmapherese. Immunfluoreszenz-Untersuchung auf Antikörper gegen Muskelgewebe ist für die MG-Diagnostik weniger empfindlich und nicht spezifisch.
    Notes: Summary The sera of 65 patients with myasthenia gravis (MG) were analysed for antibodies against the nicotinic acetylcholine receptor (ACh-R) using an immunoprecipitation assay (125I-α-bungarotoxin bound to human ACh-R as antigen). In 91% of MG sera elevated antibody titers were found ranging up to 500 times reference values. A control group of 77 patients showing various autoimmunological phenomena had ACh-R antibody concentrations within the reference range. The demonstration of antibodies against ACh-R provides a sensitive and highly specific tool for the diagnosis of MG. In addition, the test is helpful in following patients under treatment with immunosuppressive drugs or plasmapheresis. Antibodies against striated, smooth, or heart muscle (indirect immunofluorescence test) are much less sensitive and nonspecific for the diagnosis of MG.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1459
    Keywords: Atrial myxoma ; Neurological deficits ; Stroke ; Vasculitis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Neurological manifestations were analysed in 13 patients with left atrial myxoma confirmed by histological study. In this group, 6 patients had neurological complaints at initial presentation, 5 had cardiac symptoms, and 4 patients presented with signs of systemic disease. CT was performed in 10 and MRI in 7 patients. There were signs of ischaemic or haemorrhagic infarction (6 of 12) and one lesion suggestive of myxoma metastasis; other findings mainly comprised non-specific white matter lesions revealed by MRI. Neurological follow-up 0.5–8 years after tumour resection revealed no delayed neurological complications, follow-up CT and MRI findings were not suggestive of lesions acquired after operation. It is suggested that this rare condition of cardiac myxoma should be suspected in young patients with CNS symptoms or signs lacking cerebrovascular or cardiovascular risk factors and should be included in the differential diagnosis of vasculitis. With timely diagnosis and resection of the cardiac tumour the long-term prognosis can be considered improved.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 69 (1997), S. 1225-1226 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 70 (1998), S. 1120-1121 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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