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  • Electronic Resource  (8)
  • Bone marrow transplantation  (5)
  • Aplastic anemia  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 71 (1993), S. 102-108 
    ISSN: 1432-1440
    Keywords: Aplastic anemia ; Granulocyte-macrophage colony-stimulating factor ; Immunosuppression ; Serum levels ; T lymphocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To clarify the role of growth factors in the pathophysiology of aplastic anemia we measured serum granulocyte-macrophage colony-stimulating factor (GM-CSF) levels in 33 aplastic anemia patients by a specific and sensitive enzyme-linked immunosorbent assay. GM-CSF serum levels of patients with aplastic anemia were significantly higher than in healthy volunteers. GM-CSF levels were correlated with the severity of aplastic anemia but not with the absolute neutrophil count. Since T lymphocytes are one of the main sources of GM-CSF, our data provide further evidence for in vivo T lymphocyte activation in aplastic anemia. GM-CSF serum levels are higher in patients responding to immunosuppressive treatment than in nonresponders. Elevated serum GM-CSF might be predictive of a good response to immuno-suppressive therapy. GM-CSF serum levels are lower immediately after treatment with antilymphocyte globulin/antithymocyte globulin (ALG/ATG) than corresponding pretreatment values. Thus we cannot confirm the hypothesis that ALG/ATG effects in vivo are mediated by stimulating the release of growth factors. We conclude that in aplastic anemia the primary defect is a failure in GM-CSF response rather than in GM-CSF supply.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 61 (1990), S. 240-244 
    ISSN: 1432-0584
    Keywords: Aplastic anemia ; Pancytopenia ; Agranulocytosis ; Drug induced blood dyscrasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary From a population-based study on the incidence of potentially drug-associated blood dyscrasias 28 cases were identified with pancytopenia. Who recovered within 90 days after diagnosis. Early recovery occured more frequently in patients showing normal or increased cellularity of the bone marrow than in patients with bone marrow hypoplasia. Median recovery times of leukocytes were 14 and 10 days and of platelets 21 and 9 days in patients with and without bone marrow hypoplasia, respectively. Age and sex distribution were similar in both groups. Of 28 patients, 11 reported a period of fever before onset of pancytopenia. Sixteen patients in whom information on drug use was available had taken a median of 4 drugs before the onset of symptoms that were related to pancytopenia. From these results we present the hypothesis that transient pancytopenia with or without marrow hypoplasia can be the expression of the same type of bone marrow injury and that drugs or viral infections should be considered as etiological factors.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0584
    Keywords: Capillary leak syndrome ; Interleukin-2 ; Graft-versus-host disease ; Bone marrow transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The pathophysiological mechanisms involved in the development of a spontaneous systemic capillary leak syndrome (CLS) are unknown. In contrast, CLS is a well-known side effect of high-dose interleukin-2 (IL-2) therapy in solid tumors. We report on a patient who developed CLS with high serum levels of endogenous IL-2 under immunosuppressive therapy for chronic graft-versus-host disease (GvHD) after allogeneic bone marrow transplantation (BMT). Generalized edema persisted for 10 weeks. The condition resolved after antibiotic therapy of a septic shock withβ hemolyzing streptococci group A. Thus, a latent infection may alter cytokine homeostasis and may cause CLS in BMT patients.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1440
    Keywords: Bone marrow transplantation ; Aplastic anaemia ; Acute leukaemia ; Chronic granulocytic leukaemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary From 1972–1983 53 patients underwent bone marrow transplantation. The median age was 18 years (3–41). 27 patients suffered from severe aplastic anaemia, 22 patients had acute leukaemia and 4 patients had chronic granulocytic leukaemia in chronic phase. Out of 22 patients with acute leukaemia, 2 had florid leukaemia, 2 had an early relapse and 18 patients were in first or second remission of their disease. 2/53 patients received a syngeneic transplant, 51/53 patients an allogeneic transplant. 47/51 patients had a HLA-A, B, C-identical, MLC-negative sibling donor, 1/51 had a HLA-A, B-C-identical, MLC-positive sibling donor, 2/51 a HLA-phaenotypical identical parental donor and 1/51 a HLA-identical, MLC-negative unrelated donor. The comparison of the results obtained in patients with severe aplastic anaemia transplanted from 1972–1979 with those transplanted from 1980–1983 shows that the bone marrow transplantation has to be performed in an early stage of the disease before the patients become multiple transfused, sensitized and severely infected and that the conditioning regimen for polytransfused patients has to be more intensive than in untransfused patients. From the patient group transplanted 1972–1979, only 1/14 patients is a long-term survivor in contrast to 8/13 patients transplanted from 1980–1983. 11/22 patients with acute leukaemia are alive between more than 5 years and 14 days after bone marrow transplantation. Only 1/4 patients, who were transplanted not in remission, is alive. For patients with acute leukaemia the bone marrow transplantation should be performed in an early stage of their disease when the tumor burden is small and when the patients are in good clinical condition. 2/4 patients with CGL are alive between 12 months and 3 months after bone marrow transplantation. In our patient group graft versus host disease was the most important problem with a high mortality due to GvHD associated infections.
    Type of Medium: Electronic Resource
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  • 5
    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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  • 6
    ISSN: 1432-0584
    Keywords: Chronic myeloid leukemia ; Interferon ; Hydroxyurea ; Busulfan ; Bone marrow transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The therapeutic efficacy of interferon-alpha (IFN-α) in the treatment of chronic myeloid leukemia is currently being tested in a number of institutional, interinstitutional, and international trials. There is no doubt that responses are achieved in many patients, and in a small subset complete eradication of clonogenic cells may be possible. However, it has not yet been shown that overall survival of patients treated with IFN-α is better than that of those treated with conventional cytoreductive drugs. There are still controversial opinions on problems such as dosages and duration of treatment, combination with cytostatic agents, definition of responses, and relevance of cytogenic and molecular data. An international workshop discussed the data on interferon therapy and attempted to define the role of interferon today in the management of chronic myeloid leukemia.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0584
    Keywords: Key words Acute myeloid leukemia ; Bone marrow transplantation ; Decision analysis ; Decision-making
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The methodology of decision analysis was originally developed to improve clinical decisions of physicians for individual patients. However, it is also well suited to support consensus procedures. We have used this methodology to analyse the question whether allogeneic bone marrow transplantation (BMT) or consolidation chemotherapy (CCT) should be used as first line postremission treatment in patients with acute myeloid leukemia. Main risk factors relevant for the outcome after BMT and CCT are therapy-related mortality and leukemic relapse, respectively. If the possibility of salvage BMT for patients relapsing after CCT is included, the outcomes of the two strategies come rather close. However, they are clearly different in subtypes of leukemia with high or low risk of relapse, and in patients at high risk for BMT-related mortality. Sensitivity analysis considering the variation of more than one risk factor provides valuable information for decision making for both individual patients and particular subgroups of patients with acute myeloid leukemia.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0584
    Keywords: Fungal infection ; Bone marrow transplantation ; Amphotericin B inhalations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The incidence of invasive fungal infections after bone marrow transplantation (BMT) was analyzed in 303 consecutive marrow graft recipients (allogeneicn=271, autologousn=27, syngeneicn=5). All patients received inhalations with amphotericin B (10 mg twice daily) during neutropenia. The overall incidence of invasive fungal infections within the first 120 days after transplant was 3.6% (11/303; aspergillosis: 6; yeast infection: 5). Four of the 11 cases occurred early, and seven cases were observed after neutrophil recovery and discontinuation of amphotericin B inhalation treatment. Late infection was significantly associated with the development of acute graft-versus-host disease. Four of the 11 infections (early 2/4; late: 2/7) were observed in patients with a history of previous fungal infection. Other patient and treatment characteristics were not helpful in defining potential risk factors. In particular, the incidence of invasive fungal infections did not differ between patients with more or less strict reverse isolation measures. Occasional side effects such as initial mild cough and bad taste were rare, usually disappeared during continued administration, and were in no case the reason for discontinuation of treatment. These data suggest that aerosolized amphotericin B may be a useful, convenient, and efficient prophylactic antifungal regimen in BMT.
    Type of Medium: Electronic Resource
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