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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 53 (1975), S. 581-583 
    ISSN: 1432-1440
    Keywords: Aplastic anemia ; acute leukemia ; preleukemia ; cytology ; agar-culture technique ; liquid culture ; reverse transcriptase ; Panmyelopathie ; akute Leukämie ; Präleukämie ; Cytologie ; Agar-Kulturtechnik ; liquid culture ; reverse transcriptase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Unter 44 Patienten mit primärer oder sekundärer Panmyelopathie fanden sich 4 (9%) mit Übergang in eine akute Leukämie. Cytologische Veränderungen, die für eine Präleukämie sprachen, fanden sich im präleukämischen Stadium nicht. Die Möglichkeit, eine Panmyelopathie und eine Präleukämie durch cytologische, cytochemische und cytogenetische Untersuchungen, durch die Agar-Kulturtechnik, die „liquid culture“ und die Bestimmung der „reverse transscriptase“ zu unterscheiden, wird diskutiert.
    Notes: Summary In a group of 44 patients with primary and secondary aplastic anemia, four (9%) developed an acute leukemia. Cytological changes that pointed to a preleukemia were not observed during the preleukemic stage. The possibility is discussed whether a aplastic anemia and a preleukemia can be distinguished by cytological, cytochemical and cytogenetic tests, by agar-culture technique, liquid-culture and determination of reverse transcriptase.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 56 (1978), S. 779-780 
    ISSN: 1432-1440
    Keywords: Suspensions-Kultur ; Akute myeloische Leukämie ; Transformation ; Leukämische Zellen ; Prognose ; Smouldering leukemia ; Suspension-culture ; Acute myeloid leukemia ; leukemic cells ; Transformation ; Prognosis ; Smouldering leukemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Blood cells from 68 patients with untreated acute myeloid leukemia were cultured in RPMI-medium without stimulating factors up to ten days. The cultures showed in part maturation and proliferation to monocytes-macrophages, in part to promyelocytes, myelocytes and Pelger-like cells, in part we did not find any differentiation or the cultures were degenerated during the first days. Retrospectively we found that in the 16 blood cell cultures with capacity to differentiation into the monocyte-macrophages-system 5 patients had a smouldering leukemia. Our preliminary evidences suggest that the diagnosis “smouldering leukemia” is to be found with our in vitro culture system. Further analysis suggest that patients with acute leukemia whose blood cells have the capacity for maturation to monocytes-macrophages or to promyelocytes, myelocytes and Pelger-like cells have a better chance of achieving a complete remission and a longer median survival time.
    Notes: Zusammenfassung Blutzellen von 68 Patienten mit unbehandelten akuten myeloischen Leukämien wurden in RPMI-Medium ohne Zusatz von stimulierenden Substanzen bis zu 10 Tage kultiviert. Die Kulturen zeigten teils Ausreifung zu Monocyten-Makrophagen, teils Ausreifung zu Promyelocyten, Myelocyten und Pelgerähnlichen Zellen, teils fand sich keine Ausreifung oder eine Degeneration am 1.–3. Kulturtag. Retrospektiv gesehen fanden wir, daß von 16 Patienten, deren Kulturen in das Monocyten-Makrophagen-System ausreiften, 5 Patienten eine sogenannte „smouldering leukemia“ hatten. Unsere vorläufigen Ergebnisse lassen hoffen, daß es mit diesem Kulturverfahren möglich ist, die Diagnose „smouldering leukemia“ schon bei Diagnosestellung zu vermuten. Weiterhin zeigte sich, daß Patienten, deren Kulturen ausreiften, eine größere Chance hatten, eine komplette Remission zu erzielen.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 59 (1981), S. 1189-1193 
    ISSN: 1432-1440
    Keywords: Acute Leukemia ; Maintenance Therapy ; Specific Immunotherapy ; Akute Leukämie ; Erhaltungstherapie ; Spezifische Immuntherapie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Von 1976 bis 1978 wurden 136 erwachsene Patienten mit akuter Leukämie in vier Berliner Kliniken zytostatisch behandelt. Bei 47 Patienten (35%) konnte eine komplette Remission erzielt werden. Sechsundzwanzig Patienten mit kompletter Remission und einer akuten nicht-lymphatischen Leukämie, bei denen eine Induktionstherapie mit Daunorubidomycin (45 mg/m2/Tag, Tag 1, 2 und 3) und Cytosin-Arabinosid (100 mg/m2/Tag, Dauerinfusion, Tag 1 bis Tag 7) durchgeführt wurde, wurden in einer randomisierten Studie weiter behandelt. Dreizehn Patienten erhielten in vierwochigen Intervallen eine kombinierte Chemotherapie, die andere Gruppe erhielt zusätzlich eine spezifische Immuntherapie, die in der Injektion Neuraminidase-behandelter allogenetischer Blasten bestand. Die Ergebnisse zeigen, daß durch die zusätzliche Immuntherapie in der von uns durchgeführten Form keine Verlängerung der ersten Remission oder der Überlebenszeit erreicht werden konnte.
    Notes: Summary From 1976 until 1978, 136 adult patients with acute leukemia were treated in four hospitals in Berlin. A complete remission was achieved in 47 patients (35%). Twenty-six patients with non-lymphocytic acute leukemia, who had achieved a complete remission with induction chemotherapy consisting of daunorubicin (45 mg/m2/day, day 1, 2 and 3) and cytosine-arabinoside (100 mg/m2/day, continuous infusion, day 1 to day 7) were entered into a randomized trial. Thirteen patients were treated with an intermittent combination chemotherapy at 4-week intervals; the other group of patients received in addition a specific immunotherapy consisting of neuraminidase-modified allogeneic blast cells. The results revealed that the addition of this kind of immunotherapy did not increase the duration of first remission or survival.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 36 (1978), S. 347-351 
    ISSN: 1432-0584
    Keywords: Acute leukaemia ; Antigen stimulation ; Transformation of blast cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Peripheral blood cells from patients with acute leukaemia were stimulated in RPMI-medium with Phytohaemagglutinin (PHA) and/or Pokeweed-Mitogen (PWM). Samples of the cultures were taken at 3, 5 and 7 day intervals for cytological characterization. From 119 cultures from 65 patients 76 cultures from 47 patients could be analysed. Cultures stimulated with PHA and/or PWM showed in 43,4% a higher stimulation rate in comparison with cultures from normal persons. These findings are discussed in relation to the increased agar-colony growth of leukaemic cells after in vitro PHA-stimulation and transformation of blast cells.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0584
    Keywords: Non-Hodgkin lymphoma ; Kiel classification ; Low-grade malignancy ; High-grade malignancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary On the basis of the retrospective analysis of 405 patients, suggesting the clinical relevance of the Kiel classification of non-Hodgkin lymphomas (NHL), a prospective multicenter study was started on October 1st, 1975, by the Kiel Lymphoma Study Group in order to further clarify the clinical and prognostic features of the different lymphoma entities defined by this histopathologic scheme. Diagnostic protocol provides initial staging evaluation according to a modification of the Ann Arbor classification. Therapeutic approach is based on the hypothesis that, like Hodgkin's disease, NHL originate, at least in part, as localized lymphatic or extralymphatic tumors. Thus, extended field irradiation is performed in stages I and II (except for lymphoblastic lymphoma in children and young adults) whereas in the more advanced stages III and IV (except for stage III of centroblastic-centrocytic lymphoma) chemotherapy with additional radiotherapy is applied. Until June 1979, 815 patients entered the study (69.7% with NHL of low-grade malignancy). For the interim evaluation underlying the present and the other papers of this series data of 511 patients were available. Survival of patients with NHL of low-grade malignancy significantly exceeds that of patients with NHL of high-grade malignancy. NHL with good prognosis such as chronic lymphocytic leukaemia and centroblastic-centrocytic lymphoma can be differentiated from NHL with a poor course such as lymphoblastic and immunoblastic lymphomas. In addition, the existence of a third group with an intermediate prognosis comprising centrocytic and centroblastic lymphomas and, possibly, also LP immunocytoma is suggested. However, different initial slope of survival curves shows that this latter group of NHL is not homogeneous with regard to prognosis.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0584
    Keywords: Non-Hodgkin lymphoma ; Centrocytic lymphoma ; Centroblastic-centrocytic lymphoma ; Centroblastic lymphoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Clinical data of 48 patients with centrocytic, 83 patients with centroblastic/centrocytic and 64 patients with centroblastic lymphoma who had entered a prospective multicenter study of the Kiel Lymphoma Study Group since October 1975 were compared. Advanced (stage IV) disease at time of diagnosis, predominantly due to bone marrow infiltration, was most frequent in centrocytic (69% of patients) and in centroblastic/centrocytic (51% of patients) lymphomas as compared to only 28% of patients with centroblastic lymphoma. High survival probability of patients with localized centrocytic and centroblastic/centrocytic lymphomas after radiotherapy, contrasting with a worse prognosis of corresponding patients with centroblastic lymphoma, is compatible with the classification of these lymphoma entities as neoplasias of low-grade malignancy. However, as shown by this prospective and previous retrospective trials overall survival probability of patients with advanced centrocytic lymphoma was inferior to that observed in corresponding patients with centroblastic/centrocytic lymphoma. These findings suggest the possibility that patients with advanced centrocytic lymphoma occupy an intermediate position between typical low-grade and typical high-grade malignant non-Hodgkin lymphomas.
    Type of Medium: Electronic Resource
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