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  • Major histocompatibility complex antigens  (2)
  • 3D Computer graphics  (1)
  • 1
    ISSN: 1437-1596
    Keywords: Cranio-facial identification ; Facial reconstruction ; 3D Computer graphics ; Video superimposition ; Laser scanner
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Notes: Abstract A facial image was reconstructed from the skull, part of a complete skeleton found in woodland, of a male person who had hanged himself from a tree. In addition, video superimposition was carried out with antemortem photographs of a person suspected of being the victim, and a good match was obtained. In a further case, a cheaper video-transparency superimposition was carried out, with identity later being confirmed on the basis of dental records. The techniques and the problems encountered are discussed. According to our experience, 3D computer reconstruction and video superimposition have a useful role in the process of identification, particularly in the early stages of an investigation and when other more definitive methods may not be available.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Glioma ; Macrophage ; Lymphocyte ; Cellular immunity ; Major histocompatibility complex antigens
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Sixty-five malignant gliomas (astrocytomas grade 3 and 4 and glioblastomas) were examined by means of immunoperoxidase staining on frozen tissue using various monoclonal antibodies directed against macrophages, lymphocytes and natural killer cells. Depending on the antibody used, the presence of macrophages in tumours ranged from 85%–100%. Many of the tumours contained substantial numbers of macrophages not only, as expected, in necrotic areas but also in intact tumour tissue. Eighty-nine percent of 39 tumours tested contained Fc receptorbearing mononuclear cells in viable tumour. In 100% of 44 tumours tested for HLADR class 2 major histocompatibility complex antigen this antigen was detected in the macrophages. In 40% of these 44 cases, HLADR antigen was also present on the tumour cells. Eighty-eight percent of 53 tumours tested contained T cells in viable tumour and the majority of these cells were T cytotoxic/suppressor (T8). Twenty-four percent of 33 tumours contained no T helper/inducer (T4) lymphocytes and in the other 76% there were few positive cells. Only 9% of 21 tumours contained natural killer cells (NK). B cells were absent from 88% of 61 tumours and almost all of the remainder contained only a small number of B cells. The findings are discussed with reference to a possible host immune response to gliomas and relevant literature is reviewed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0533
    Keywords: Astrocyte ; Macrophage ; Lymphocyte ; Major histocompatibility complex antigens ; Cellular immunity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Frozen samples from 23 low grade (grade I and II) astrocytomas were studied by means of a panel of monoclonal antibodies to macrophages, lymphocytes (and their subsets) and HLA-DR antigens. Macrophages were present in low to moderate numbers in 38%–86% of cases, the variance in figures depending on the antibody used. T lymphocytes, the majority of CD8 phenotype, were detected in low numbers in 78% of tumours. B lymphocytes were scanty in 22% (5/22) and totally absent in the remaining cases. HLA-DR antigen was expressed by tumour cells in 35% (6/17) of cases. These findings indicate that in some low grade astrocytomas there is a mononuclear cell infiltrate with macrophages and secondarily CD8+lymphocytes playing the major role. The significance of these findings remains speculative at present.
    Type of Medium: Electronic Resource
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