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  • 1
    ISSN: 1432-0878
    Keywords: Epithelium ; Glycocalyx ; Glycogen ; Rumen ; Transport
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The rumen of fetal, 12 hour, and 3 day lambs is lined by a non-keratinized epithelium about 400 μ thick which contains a high concentration of glycogen. By 7 days after birth the epithelium is considerably thinner, contains only traces of glycogen, and resembles the keratinizing epithelium of the adult. No glycogen is found in the keratinizing epithelium of 33–35 day lambs. A PAS reactive glycocalyx is seen first on keratinizing cells in epithelium of the 7 day lamb and is noted in ruminal epithelium of all older animals. The basal surface of the epithelium in the fetus and newborn is smooth. Scattered infoldings are seen on the same surface in 7 and 33–35 day lambs; the basal surface of adult ruminal epithelium is covered by microvillous processes. Differentiation of a glycocalyx and a large basal surface area are indicative of the developing transport function of the epithelium.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 140 (1973), S. 445-449 
    ISSN: 1432-0878
    Keywords: Cecum, Colon ; Mouse ; Glycocalyx ; Intestinal microorganisms ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ultrastructure of the cecal epithelium of the mouse resembles that of more distal parts of the colon. A brief discussion is presented of the possible significance of apical cytoplasmic granules to the glycocalyx and of the close association of microorganisms with the lining epithelium.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 278 (1994), S. 629-631 
    ISSN: 1432-0878
    Keywords: Fibroblasts ; Orbit ; Fine structure ; Graves' disease ; Connective tissue ; Man
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The fine structure of cultured human orbital fibroblasts was investigated by transmission electron microscopy. One culture was derived from a patient with severe Graves' ophthalmopathy, the other from a donor without inflammatory orbital disease. Despite their known differences in metabolism, orbital fibroblasts from either source revealed no ultrastructural differences. The cells had extensive thin cytoplasmic processes. The perinuclear areas contained multiple assemblies of Golgi membranes, modest amounts of rough endoplasmic reticulum, intermediate filaments, and lysosome-like structures. Glycogen deposits were noted both in the perinuclear cytoplasm and in the thin processes. These ultrastructural features of orbital fibroblasts are the same as those of fibroblasts from other anatomic regions.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 278 (1994), S. 629-631 
    ISSN: 1432-0878
    Keywords: Key words: Fibroblasts ; Orbit ; Fine structure ; Graves' disease ; Connective tissue ; Man
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. The fine structure of cultured human orbital fibroblasts was investigated by transmission electron microscopy. One culture was derived from a patient with severe Graves' ophthalmopathy, the other from a donor without inflammatory orbital disease. Despite their known differences in metabolism, orbital fibroblasts from either source revealed no ultrastructural differences. The cells had extensive thin cytoplasmic processes. The perinuclear areas contained multiple assemblies of Golgi membranes, modest amounts of rough endoplasmic reticulum, intermediate filaments, and lysosome-like structures. Glycogen deposits were noted both in the perinuclear cytoplasm and in the thin processes. These ultrastructural features of orbital fibroblasts are the same as those of fibroblasts from other anatomic regions.
    Type of Medium: Electronic Resource
    Signatur Availability
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