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  • Acetylcholine-receptor antibodies  (1)
  • Acuteleukemia  (1)
  • Anti-Acetylcholin-Rezeptor-Antikörper  (1)
  • 1
    ISSN: 1432-1440
    Keywords: Bone-marrow-transplantation ; Acuteleukemia ; Aplastic-anemia ; Paroxysmal-nocturnal-hemoglobinuria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Eleven adults have been transplanted for various reasons between July 1979 and July 1982: 2 with aplastic anemia (AA), 1 with paroxysmal nocturnal hemoglobinuria (PNH), 8 with acute leukemia (AL). Four patients suffered from acute lymphocytic leukemia (ALL) and four from acute non-lymphocytic leukemia (ANLL). Two of them were transplanted in relapse, 1 in a partial remission, and 5 in complete remission. All patients were in their late stage of disease. The PNH-patient had an identical twin, 8 patients had an HLA- and MLC compatible sib, 1 an unrelated donor, and 1 was transplanted from his father. Four patients are alive, 2 more than 3 years: 1 with AA and 1 with ALL who was transplanted in relapse. Six patients died of infectious complications (4 of interstitial pneumonia, 1 of a candidasepsis, 1 of acute toxoplasmosis). Patients living more than 3 weeks had a take. Acute graft-versus-host (GvH) disease did not present a major problem. All patients received methotrexate for GvH-prophylaxis, in three instances the marrow was additionally pre-incubated with anti-T-cell globulin.
    Type of Medium: Electronic Resource
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  • 2
    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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  • 3
    ISSN: 1432-1440
    Keywords: Plasmaseparation ; Myasthenia gravis ; Anti-Acetylcholin-Rezeptor-Antikörper ; Plasma separation ; Myasthenia gravis ; Anti-acetylcholine receptor antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A patient with myasthenic crisis was successfully treated with a new method of plasma exchange using a hollow-fiber filter connected to a standard dialysis pump. The filter allows PE to be performed at more clinical centers and probably at lower costs than current methods applying blood cell separators.
    Notes: Zusammenfassung Bei einer Patientin mit einer myasthenischen Krise wurde erstmals ein neuartiges Verfahren zur Plasmapherese angewandt. Dabei erfolgte die Plasmaseparation mittels eines Membranfilters in der Form eines Hohlfaserbündels. Der hierbei erforderliche apparative Aufwand ist erheblich geringer als bei den bisher zum Plasmaaustausch verwandten Blutzellseparatoren. Das neue Verfahren erscheint geeignet, der Plasmapherese zu einer weiten klinischen Anwendung zu verhelfen.
    Type of Medium: Electronic Resource
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