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  • Title: Trisomy 8 in prefibrotic early stages of chronic idiopathic myelofibrosis: a fluorescence in situ study of bone marrow biopsies.
    Author: Thiele J, Varus E, Kvasnicka HM, Wickenhauser C.
    Journal: Acta Haematol; 2006; 115(1-2):97-101. PubMed ID: 16424657.
    Abstract:
    Repeatedly performed bone marrow biopsies were studied in 30 patients with chronic idiopathic myelofibrosis (CIMF) by fluorescence in situ hybridization to detect and quantify trisomy 8 anomaly during the evolution of disease. For the establishment of threshold values we used negative and positive control specimens. At least 500 cells were evaluated in each specimen and only nuclei with three distinctive signals were regarded as positive. According to the controls, 27 patients revealed false-positive signals ranging from 0 to 1.2% (0.88 +/- 1.12). On the other hand, 3 patients showed an incidence of more than 6.5% (up to 10.1%) in the initial prefibrotic as well as advanced fibro-osteosclerotic stages of CIMF. In conclusion, trisomy 8 has been demonstrated already in the prodromal stages of CIMF and therefore is not limited to classical fibro-osteosclerotic manifestations.
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