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  • 1
    Electronic Resource
    Electronic Resource
    The effect of conditioned medium on fetal human liver cells in primary culture (1986)
    Springer
    Research in experimental medicine 186 (1986), S. 463-468 
    Details
    ISSN: 1433-8580
    Keywords: Conditioned medium ; Colony ; Human liver ; Primary ; Albumin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A medium conditioned by rat embryo cultures (RCM) promoted the adhesion of liver cells from human fetuses to plastic dish. Colonies were also formed in primary cultures of the same cells in the presence of RCM. The majority of the colonies formed were composed of large polygonal cells with a few colonies composed of both clear epithelial-like cells and fibroblast-like cells. RCM was superior to the rat embryo feeder layer for promotion of colony formation of cells. A number of colonies were formed from fetal human livers when a conditioned medium from human hepatoma cells (HCM) was used, but most of the colonies formed were composed of fibroblast-like cells. The cells derived from the polygonal cell colonies, which were formed in the presence of RCM, have been passaged four times and they are still growing with albumin-producing capacity. The effect of RCM was reduced by various physico-chemical treatments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01852200
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of methionine administration on serum alpha-fetoprotein levels in ethionine-injured rats (1982)
    Springer
    Research in experimental medicine 180 (1982), S. 15-19 
    Details
    ISSN: 1433-8580
    Keywords: Ethionine ; Liver injury ; AFP production ; Methionine ; Regulation of AFP production
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Serum alpha-fetoprotein (AFP) concentrations increased promptly 2 days following a single injection of DL-ethionine (ethionine) in adult female rats. Continuous elevation of serum AFP was also observed on feeding a diet containing 1% ethionine for at least 2–3 weeks. A rise of serum AFP was not found if the diet was supplemented with 2.8% methionine. Furthermore, in rats fed on 1% ethionine for 2 weeks, dietary change to the laboratory chow supplemented with and without 2.8% methionine produced a decrease of increased serum AFP levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01852227
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Capillary hemangioblastoma: histogenesis of stromal cells (1987)
    Springer
    Acta neuropathologica 73 (1987), S. 370-378 
    Details
    ISSN: 1432-0533
    Keywords: Electron microscopy ; Factor VIII ; Glial fibrillary acidic protein ; Hemangioblastoma ; Tissue culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The histogenesis of stromal cells in capillary hemangioblastoma has been the subject of debate. The light and electron microscopic studies of hemangioblastomas presented here showed pericytic and leiomyoblastic features in stromal cells. Cells cultured by the monolayer method showed similar features to those of the original tumors. Immunohistochemical studies for glial fibrillary acidic protein and factor VIII/von Willebrand factor indicated that stromal cells were antigenically distinct from astrocytes and endothelial cells. These findings suggest that stromal cells are closely related to pericytes and smooth muscle cells, and support Rhodin's speculation that pericytes serve as a precursor to smooth muscle cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688262
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Erythropoietin in haemangioblastoma: Immunohistochemical and electron microscopy studies (1987)
    Springer
    Acta neurochirurgica 85 (1987), S. 56-62 
    Details
    ISSN: 0942-0940
    Keywords: Electron microscopy ; erythropoietin ; haemangioblastoma ; immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Immunohistochemical studies for erythropoietin were carried out in six capillary haemangioblastomas, three of which were also studied by electron microscopy. The immunohistochemical studies showed that positively stained cells were scattered in the vicinity of capillaries, and that neither endothelial cells nor stromal cells were stained. In their morphology and distribution, the positively stained cells were identical to mast cells as observed by electron microscopy. In one case, erythropoietin was demonstrated in the cyst fluid of the tumour. These findings suggest that mast cells with abundant secreting granules in haemangioblastomas are capable of producing erythropoietin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402372
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    Paper (German National Licenses)
    Fulltext
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