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  • 1
    Electronic Resource
    Electronic Resource
    The impact of interferon versus busulfan therapy on the reticulin stain-measured fibrosis in CML – a comparative morphometric study on sequential trephine biopsies (1995)
    Springer
    Annals of hematology 70 (1995), S. 121-128 
    Details
    ISSN: 1432-0584
    Keywords: Key words CML ; Myelofibrosis ; Dynamics ; Megakaryocytes ; Morphometry ; Interferon ; Busulfan ; Sequential bone marrow biopsies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  To evaluate treatment-related changes of the reticulin stain-measured fibrosis in Ph1+-CML, a clinicopathological study was performed on sequential trephine biopsies of the bone marrow following either interferon (IFN) or busulfan (BU) monotherapy. Using the monoclonal antibody CD61 for the identification of megakaryopoiesis and Gomori's silver impregnation method, number of megakaryocytes and density of argyrophilic (reticulin and collagen) fibers were determined by morphometry. We studied specimens from 26 patients with IFN-alpha 2b (including nine patients with additional IFN gamma) therapy and from 23 patients who had received BU. In both groups, repeated bone marrow biopsies (total 125) revealed a significant increase in the fiber content, as well as in the number of megakaryocytes during treatment. To assess the dynamics of myelofibrosis more precisely, computation of differences in the degree of fiber density between the first and last examination was carried out. Regarding the considerable variations in the biopsy intervals, a so-called myelofibrosis progression index (MPI) was calculated. Following this rationale, we were able to demonstrate that, in comparison to the BU-group, speed of progression of bone marrow fibrosis was significantly increased in CML patients treated with IFN. Preliminary statistical analysis indicated a relationship between myelofibrosis on admission, which was always associated with increased growth of megakaryocytes, and the MPI with survival. Even when these parameters were regarded, prognosis was significantly more favorable in the IFN-treated patients. The failure of IFN and BU to inhibit the evolution of myelofibrosis may be related to several conversely acting pathomechanisms. Among others, the inability of both therapeutic agents to reduce the number of megakaryocytes more effectively should be taken into consideration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01682031
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The impact of interferon versus busulfan therapy on the reticulin stain-measured fibrosis in CML — A comparative morphometric study on sequential trephine biopsies (1995)
    Springer
    Annals of hematology 70 (1995), S. 121-128 
    Details
    ISSN: 1432-0584
    Keywords: CML ; Myelofibrosis ; Dynamics ; Megakaryocytes ; Morphometry ; Interferon ; Busulfan ; Sequential bone marrow biopsies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To evaluate treatment-related changes of the reticulin stain-measured fibrosis in Ph1+-CML, a clinicopathological study was performed on sequential trephine biopsies of the bone marrow following either interferon (IFN) or busulfan (BU) monotherapy. Using the monoclonal antibody CD61 for the identification of megakaryopoiesis and Gomori's silver impregnation method, number of megakaryocytes and density of argyrophilic (reticulin and collagen) fibers were determined by morphometry. We studied specimens from 26 patients with IFN-alpha 2b (including nine patients with additional IFN gamma) therapy and from 23 patients who had received BU. In both groups, repeated bone marrow biopsies (total 125) revealed a significant increase in the fiber content, as well as in the number of megakaryocytes during treatment. To assess the dynamics of myelofibrosis more precisely, computation of differences in the degree of fiber density between the first and last examination was carried out. Regarding the considerable variations in the biopsy intervals, a so-called myelofibrosis progression index (MPI) was calculated. Following this rationale, we were able to demonstrate that, in comparison to the BU-group, speed of progression of bone marrow fibrosis was significantly increased in CML patients treated with IFN. Preliminary statistical analysis indicated a relationship between myelofibrosis on admission, which was always associated with increased growth of megakaryocytes, and the MPI with survival. Even when these parameters were regarded, prognosis was significantly more favorable in the IFN-treated patients. The failure of IFN and BU to inhibit the evolution of myelofibrosis may be related to several conversely acting pathomechanisms. Among others, the inability of both therapeutic agents to reduce the number of megakaryocytes more effectively should be taken into consideration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01682031
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    4′-Epi-doxorubicin — A clinical phase-II trial in solid tumors (1984)
    Springer
    Journal of cancer research and clinical oncology 107 (1984), S. 38-41 
    Details
    ISSN: 1432-1335
    Keywords: 4′-Epi-doxorubicin ; Phase-II trial ; Refractory neoplasms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 4′-Epi-doxorubicin is a new anthracycline analog with reduced cardiac toxicity in animal studies. A phase-II study was performed in 17 patients predominantly with non-small-cell lung cancer. All suffered from recurrent or advanced tumors and 7 of 16 evaluable patients had been pretreated with an alternative chemotherapy. 4′-Epi-doxorubicin was applied at a dose of 75 mg/m2 every 3–4 weeks. The median total dose was 280 mg (range: 130–250 mg). Only one patient with epidermoid lung cancer (overall response rate: 6%) showed a minor response and stable disease was observed in six other patients with bronchogenic carcinoma. Myelosuppression was rare and moderate: Leukocytopenia of less than 2,000/mm3 occurred in 25% of patients and thrombocytopenia of less than 100,000/mm3 in 8% of patients. The frequency of alopecia and gastrointestinal side effects was 88% and 80%, respectively. Persistent electrocardiographic alterations were recorded in 2 of 14 (14%) patients. One of four patients revealed a marked reduction of left ventricular ejection fraction in radionuclide cardiography. It is concluded that 4′-epi-doxorubicin is not superior to adriamycin in this low-prospect treatment area, but studies with increased doses appear necessary in adriamycin-sensitive tumors because of recent reports from phase-III trials showing reduced cardiac and gastrointestinal toxicity with 4′-epi-doxorubicin in comparison with adriamycin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00395488
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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