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  • 1
    Electronic Resource
    Electronic Resource
    MRI manifestations of gastrointestinal lymphoma (1994)
    Springer
    Abdominal imaging 19 (1994), S. 495-500 
    Details
    ISSN: 1432-0509
    Keywords: MR studies, gastrointestinal tract ; Lymphoma, MR studies ; Intestines, MR studies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The magnetic resonance (MR) images of 11 cases of gastrointestinal lymphoma are presented. The findings include irregularly thickened mucosal folds, irregular submucosal infiltration, annular constricting lesion, exophytic tumor growth, mesenteric masses, and mesenteric/retroperitoneal lymphadenopathy. The tumors were homogeneous and intermediate in signal intensity on T1-weighted images. Heterogeneously increased signal intensities were noted on T2-weighted images. There was mild to moderate enhancement after intravenous administration of gadolinium dimeglumine (Gd-DTPA). The submucosal tumor infiltration might be outlined between the strongly GD-DTPA-enhanced mucosa and the low-intensity muscular layer. In one case that received tumor resection, the pathological examination showed destruction of most parts of the muscular layer, and the MR images did not disclose the low intensity muscular zone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00198248
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Flow cytometric analysis of the chromosomes and stability of a wheat cell-culture line (1997)
    Springer
    Theoretical and applied genetics 94 (1997), S. 91-97 
    Details
    ISSN: 1432-2242
    Keywords: Key words Wheat  ;  Cell culture  ;  Chromosomes  ;   Flow karyotype  ;  Genome organization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A rapidly growing, long-term suspension culture derived from Triticum aestivum L. (wheat) was synchronized using hydroxyurea and colchicine, and a chromosome suspension with chromosomes was made. After staining with the DNA-specific fluorochromes Hoechst 33258 and Chromomycin univariate and bivariate flow-cytometry histograms showed 15 clearly resolved peaks corresponding to individual chromosome types or groups of chromosomes with similar DNA contents. The flow karyotype was closely similar to a histogram of DNA content measurements of Feulgen-stained chromosomes made by microdensitometry. We were able to show the stability of the flow karyotype of the cell line over a year, while a parallel subculture had a slightly different, stable, karyotype following different growth conditions. The data indicate that flow cytometric analysis of plant karyotypes enables accurate, statistically precise chromosome classification and karyotyping of cereals. There was little overlap between individual flow-histogram peaks, so the method is useful for flow sorting and the construction of chromosome specific-recombinant DNA libraries. Using bivariate analysis, the AT:GC ratio of all the chromosomes was remarkably similar, in striking contrast to mammalian flow karyotypes. We speculate about a fundamental difference in organization and homogenization of DNA sequences between chromosomes within mammalian and plant genomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050386
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    Paper (German National Licenses)
    Fulltext
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