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  • 1
    ISSN: 1432-0584
    Keywords: Non-Hodgkin's lymphomas ; Chemotherapy ; Consolidation therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty four patients with high grade malignant NHL (stage II 8, stage III 4, stage IV 12 patients respectively) were treated with a response-oriented regimen: Treatment was initiated according to the CHOP-protocol. Patients achieving at least a partial remission after 2 and a complete remission (CR) after 4 cycles were continued on CHOP to a total of 9 cycles. Patients not meeting these criteria were switched to a combination of Etoposide, Ifosfamide, Methotrexate, and Bleomycin (VIM-Bleo). With CHOP treatment, 16 patients (67%) achieved a CR. Of the remaining 8, 7 were treated with VIM-Bleo; 5 of these entered CR for a overall CR rate of 21/24 (88%). With a median follow up of 28 months 7 patients relapsed: 6 relapses occurred in patients with a rapid initial response and treated only with CHOP. We conclude, that there is a significant risk of relapse even in patients readily responding to CHOP and that consolidation therapy with a non cross-resistant regimen may improve results in these patients.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 64 (1992), S. A132 
    ISSN: 1432-0584
    Keywords: Hepatitis A virus ; In vitro myelopoiesis ; Long-term bone marrow cultures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Perturbations of hematopoietic regulation ranging from transient granulocytopenia to rare cases of bone marrow failure are associated with infections due to hepatitis A virus (HAV). In an attempt to elucidate the pathogenetic mechanisms we had previously established that HAV has a direct suppressive effect on human bone marrow progenitors (CFU-GM, -GEMM, BFU-E). These studies were extended to long-term bone marrow cultures (LTBMC): Inoculation of bone marrow mononuclear cells with HAV did not interfere with the establishment of an adherent stromal layer, nor did the inoculation of already established layers cause any morphologically recognizable changes to the stroma. In contrast, a significant and progressive decline of the CFU-GM content in the culture supernatants was demonstrated. HAV antigen was detected by APAAP stain in a subpopulation of stromal cells, and sequential estimations of virus titers in the supernatants provided evidence for viral replication in primary bone marrow cultures. Interferon-gamma and tumor necrosis factor-alpha levels of infected cultures did not differ from those of uninfected controls. These findings argue for a direct suppression of (pre-) CFU-GM by HAV in a model system (LTBMC) lacking an immune defense which would limit viral replication.
    Type of Medium: Electronic Resource
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