منابع مشابه
Ultrastructure of Tumor Cells during Mitosis1-2
The fine structure of the mitotic process of solid hepatoma cells of rat has been described. The replication and migration of centrioles, appearance and disappearance of spindle tubules and kinetochores, and movement and replication of chromo somes resemble those reported in other cell systems. It has been observed that the nucleoli persist throughout all stages of cell division. The Golgi appa...
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A case of anaplastic, multinucleated giant cell tumor of the thyroid was studied by light and electron microscopy. The coexistence of anaplastic sarcomatous tumor and well differentiated follicular carcinoma, and the presence of desmosomes among the mononuclear cells suggested that this tumor originates in thyroid follicular cells. The multinucleated giant cells, which characterize this thyroid...
متن کاملUltrastructure of double minutes from a human tumor cell line
Double minutes (dm) have been isolated from human tumor cells by zonal centrifugation and by differential pelleting of chromosome suspsension. These methods allowed collection of dm in sufficient quantity and purity for visualization with electron microscopy. Ultrastructurally, the chromatin fibers in dm resemble thrance fragments was found. When the two isolation protocols were compared, diffe...
متن کاملUltrastructure of cartilage.
reported that the nodule in Still's disease often resembled that of rheumatic fever histologically; this was based on biopsies of eleven cases compared with 57 with rheumatic fever and 22 with adult rheumatoid arthritis. We now report a small series of six children followed for 3 to 5 years, where multiple small nodules as seen clinically in rheumatic fever were the predominant clinical feature...
متن کاملUltrastructure of Azotobacter vinelandii.
Vegetative cells and cysts of Azotobacter vinelandii 12837 were prepared for electron microscopy by several methods assumed to preserve structural details destroyed by techniques previously reported in the literature. Examination of large numbers of cells and cysts by these methods revealed four structural details not reported previously: intine fibrils, intine vesicles, intine membrane, and mi...
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ژورنال
عنوان ژورنال: The KITAKANTO Medical Journal
سال: 1982
ISSN: 0023-1908,1883-6135
DOI: 10.2974/kmj1951.32.93