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  • 1
    ISSN: 1432-1440
    Keywords: Aplastic anemia ; Immunosuppressive treatment ; Antithymocyte globulin ; Cyclosporin A
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty-three patients with aplastic anemia (18/23 with severe aplastic anemia) were treated with an immunosuppressive regimen consisting of cyclosporin A (CsA) and methylprednisolone (MP) (n=7) or CsA, MP, and antithymocyte globulin (ATG;n=16). Nineteen patients are alive with a follow-up of 4 to 25 months; three patients died of infections and one of a gastrointestinal hemorrhage. Within 3 months, improvement of hematopoiesis was seen in 14 patients (61%). First signs of a response after 23 to 88 days were followed by complete remission in eight patients, partial remission in three patients, and minimal improvement in three patients. Two of the patients with only minimal improvement were treated with a second course of immunosuppression and reached a complete remission and partial remission. Interestingly, remission proved to be dependent on the continued administration of CsA in four of five patients with partial or complete remission who could be evaluated up to now. Thus, CsA must have been effective in the induction and/or maintenance of remission in three patients. This observation is a very strong argument for the role of T cells in the pathogenesis of at least some cases of aplastic anemia and warrants further evaluation of the role of CsA in the treatment of aplastic anemia.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 45 (1982), S. 243-248 
    ISSN: 1432-0584
    Keywords: Preleukemia ; T-cell mitogens ; NK cell activity ; Immune functions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The responses to the T-cell mitogens Phythemagglutinin (PHA) and Concanavalin A (ConA) and the natural killer (NK) cell activity are tested in patients with preleukemia (PL). The results are compared with those of healthy controls. The PL patients show low responses to T-cell mitogens and low NK cell activities. It is discussed that the data are not of prognostic value in PL as to development of overt leukemia. However, the results suggest that in PL impaired cell functions are not limited to erythropoiesis, granulopoiesis, and thrombopoiesis but are also found in the immune system.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 57 (1979), S. 21-29 
    ISSN: 1432-1440
    Keywords: Preleukemia ; Acute leukemia ; Prospective study ; Präleukämie ; Akute Leukämie ; Prospektive Studie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In einer prospektiven, multizentrischen Studie wurde der Verlauf bei 33 Patienten mit Präleukämie verfolgt. Kriterien für die Aufnahme in die Studie waren eine Anämie mit Granulo- und/oder Thrombozytopenie bei normal oder erhöht zellreichem Knochenmark und Ausschluß einer für diese Veränderungen verantwortlichen Grunderkrankung oder externen Noxe. Die kürzeste Nachbeobachtungszeit nach Stellung der Diagnose „Präleukämie“ betrug 3 Jahre. Die mediane Überlebenszeit war 26 Monate nach Ersterfassung und 36 Monate nach Erstsymptom der Erkrankung. Remissionen wurden nicht beobachtet. Bei 40% der Patienten wurde innerhalb von 2 Jahren nach Ersterfassung eine akute Leukämie diagnostiziert. Unter den geprüften prognostischen Faktoren sprachen vor allem Chromosomenaberrationen und ein erhöhter Blastenanteil für den Übergang in eine akute Leukämie.
    Notes: Summary The natural course of disease was followed in 33 patients with so-called preleukemia by a prospective multicentric protocol. Patients with the following criteria were included: Anaemia with granulocytopenia and/or thrombocytopenia, normal or increased cellularity of the bone marrow and exclusion of a known diagnosis of underlying disease. Follow up after assumption of “preleukemia” was 3 years or more. Median survival was 26 months after diagnosis of preleukemia and 36 months after the first unequivocal symptoms of the blood dyscrasia. 40% of the patients changed to the picture of leukemia within 2 years. The most important parameters suggesting subsequent transition to overt leukemia where chromosomal abberations and an increased blast count of the bone marrow.
    Type of Medium: Electronic Resource
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