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  • 1990-1994  (1)
  • 1980-1984  (1)
  • Isoniazid  (1)
  • Monoclonal islet cell surface antibodies (mcICSA)  (1)
  • 1
    ISSN: 1432-0428
    Keywords: Monoclonal islet cell surface antibodies (mcICSA) ; anti-islet cell toxicity ; application in vivo ; pancreatic insulin content ; rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two monoclonal Beta-cell surface antibodies M10H6 und K14D10 were obtained by fusion of spleen cells of Balb/c mice with the myeloma cell line P30. The monoclonal antibody M10H6 was induced by immunization with rat insulinoma cells finally boostered with disintegrated rat islets, whereas the K14D10 was generated after immunization with porcine proinsulin. Both monoclonals belong to the IgG2A isotype and were screened with insulin-producing rat insulinoma cells by an indirect immunofluorescence test as well as by a cellular enzyme linked immunosorbent assay. In addition to the cell surface binding on living Beta cells the monoclonals react with islets on cryostat sections of rat pancreas. The anti-islet cytotoxic potential of these monoclonals was measured by 51Chromium-release in the presence of complement or Fc-receptor bearing leucocytes using 51Chromium-labelled rat islet cells as target. Both antibody secreting hybridomas were propagated in syngeneic mice resulting in high levels of islet cell surface antibodies in ascites and sera from the recipient. High anti-islet cytotoxicity was mediated by ascites fluid, but no mouse developed hyperglycaemia. Furthermore, the repeated injections of the monoclonals into rats did not exert a diabetogenic action and failed to reduce the pancreatic insulin content although the attraction of the K14D10 to the pancreatic islets in vivo could be demonstrated. We conclude that islet cell surface antibody-mediated Beta-cell lysis in vitro may not be relevant to Beta-cell destruction in vivo.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 229 (1983), S. 237-245 
    ISSN: 1432-1459
    Keywords: Disability evaluation ; Isoniazid ; Huntington's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über 11 Patienten mit Huntingtonscher Krankheit berichtet, die in hoher Dosierung Isoniazid erhielten. Neben der klinischen Beurteilung erfolgte eine Quantifizierung des Behinderungsgrades. 4 Patienten wiesen eine eindeutige Besserung der Symptome und eine Abnahme der Behinderung auf. Ein Patient mit der rigiden Form (Westphal-Variante) verschlechterte sich und die restlichen 6 Patienten zeigten keine Änderung des Zustandsbildes. Es scheint, daß besonders die Patienten auf die Isoniazidtherapie ansprechen, bei denen die psychische Beeinträchtigung im Vordergrund steht.
    Notes: Summary Eleven patients with Huntington's disease were treated with high doses of isoniazid. In addition to the clinical assessment, the functional capacity was evaluated quantitatively. The symptoms of four of the patients showed a marked improvement and their functional capacity increased. The condition of one patient with the rigid form (Westphal's variant) deteriorated, and the remaining six patients showed no change. Patients with prominent mental disturbances appeared to respond best to isoniazid therapy.
    Type of Medium: Electronic Resource
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