989 resultados para ALOHA2002-12-13


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This paper chronicles a 2-year-old girl who presented with acute leukemia/lymphoma syndrome of the T cell immuno-phenotype. At this time, the cytogenetic analysis of her bone marrow cells showed a reciprocal translocation between the short arm of chromosome 12 and the long arm of chromosome 13, t(12;13)(p13;q14). The immunophenotyping of bone marrow blast cells by flow cytometry revealed a population of cells positive for CD56, CD117, CD45, partial CD33, partial HLA-DR, CD13, CD7, CD2 and CD5. Therefore, a diagnosis of acute leukemia with a mixed T cell/myeloid phenotype was made. The patient had a poor response to classic T cell acute lymphocytic leukemia/lymphoma therapy; thus, her treatment was changed to a myeloid leukemia protocol, which produced a good response. She underwent a successful cord blood transplantation from an unrelated HLA partially matched donor. The coexistence of these two phenotypes prompts questions about the existence of clonal instability, which might influence the choice of therapy. The rarity of the t(12;13)(p13;q14) and the coexistence of T cell/myeloid markers suggest a nonrandom association. To the best of our knowledge, this is the first reported case in which a cell clone bearing a t(12;13)(p13;q14) translocation in a mixed T cell/myeloid lesion was detected. Copyright (C) 2012 S. Karger AG, Basel

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A general strategy has been devised for the stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants thereof, which relies on late stage introduction of the heterocycle through Wittig olefination of ketone 14. Formation of the macrocycle was achieved through RCM-based ring closure and introduction of the cyclopropane moiety involved a highly selective Charette cyclopropanation of allylic alcohol 7.

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Boberach: Die Arbeiterschaft fordert gerechten Ausgleich zwischen Kapital und Arbeit, insbesondere Lohnerhöhungen, weil die Buchdrucker nur den Wohlstand ihrer Prinzipale von Jahr zu Jahr wachsen sahen, während die eigene Zukunft immer schlechter wurde. Verlangt werden ferner ein paritätisch von Arbeitern und Arbeitgebern gewähltes deutsches Arbeitsministerium, Überwachung der Berufsausbildung, Gründung von Gesellenvereinen, Kranken-, Invaliden-, Sterbe- und Witwenkassen sowie Maßnahmen gegen zu viele Maschinen

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Welsch (Projektbearbeiter): Feierliches Gedicht zu Ehren der in der Nacht vom 13. auf den 14. März 1848 gegründeten Wiener Akademischen Legion. Vom Schriftsteller und Arzt Siegfried Kapper; vertont von dem Komponisten Henry Litolff