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  • Articles  (5)
  • Angiosperms
  • Immunocytochemistry
  • Springer  (5)
  • American Chemical Society (ACS)
  • Physics  (5)
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  • Articles  (5)
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  • 1
    ISSN: 1435-604X
    Keywords: Heat shock protein 70 (hsp70) ; Carbon dioxide laser ; Sodium arsenite ; Human diploid fibroblast ; Electrophoresis ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Physics , Technology
    Notes: Abstract In a previous study, it was demonstrated that heat shock protein 70 (hsp70) was induced by short duration (〈1 s) carbon dioxide (CO2) laser radiation (10.6Μm. To further characterize the stress response after laser irradiation, the time course of synthesis and cellular localization of hsp70 has been followed. As it had been shown that laser irradiation elevated the temperature to about 67±2
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  • 2
    ISSN: 1432-0827
    Keywords: Androgen Receptor ; Osteoclast ; Mouse ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Expression of androgen receptor (AR) in mouse osteoclast-like multi-nucleated cells (OCs) was examined with immunocytochemical techniques. Murine OCs were obtained by co-culturing mouse osteoblastic cells and bone marrow cells. Three preparations of polyclonal anti-AR antibody which were raised in rabbit against different parts of the human AR were employed for the experiments. Specific staining for AR was demonstrated in the nuclei and the perinuclear area of mouse OCs. This is the first report demonstrating the presence of AR in osteoclast-like cells.
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  • 3
    ISSN: 1432-0827
    Keywords: Growth hormone ; Growth hormone receptor ; Odontogenesis ; Bone remodeling ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Growth hormone (GH) may regulate tooth formation and bone remodeling associated with tooth eruption. This study reports the distribution of growth hormone receptor/binding protein in developing rat molars and adjacent alveolar bone by immunocytochemistry using well-characterized anti-growth hormone receptor monoclonal antibodies. These tissues represent an excellent model for studying the ontogenic changes that occur in odontogenic and osteogenic cells, as these cells are found in linear arrays displaying the various stages of morphological and functional differention, and differentiated function. Immunoreactivity was first seen in precementoblasts in contact with the epithelial root sheath, and preodontoblasts. However, growth hormone receptor immunoreactivity was associated primarily with the cytoplasm of odontogenic and osteogenic cells forming their respective matrices. Thus, cementoblasts and odontoblasts at sites of new matrix formation showed intense immunoreactivity whereas cementocytes and mature odontoblasts at later stages of tooth development were nonreactive. Osteoblasts engaged in intramembranous ossification in the alveolar bone were positive, although osteocytes and endosteal cells were immunonegative. Osteoclasts at sites of alveolar bone remodeling resorption were also immunopositive. These patterns of receptor expression parallel the ontogenic sequences of odontogenic and osteogenic cells and suggest that GH promotes the functional state of these cells. Our results also imply that GH may influence differentiation or differentiated functions associated with odontogenesis, osteogenesis, and bone remodeling independent of systemic insulin-like GF-I.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 24 (1977), S. 223-229 
    ISSN: 1432-0827
    Keywords: Enamel-cementum-morphology ; Immunocytochemistry ; Biochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary The continuously erupting rabbit incisor tooth is normally thought of as having an enamel covered “crown” on its labial surface and a cementum covered “root” on its lingual surface. We have examined both surfaces of continuously erupting rabbit incisor teeth taken from near term embryos by a variety of means, including transmission and scanning electron microscopy, biochemical fractionation, and immunohistochemistry. In all cases, we could detect no qualitative difference in the early extracellular matrices taken from the labial and lingual surfaces of the teeth. Both matrices were shown to be composed of dentin and enamel, although the thickness and geometry of the enamel matrix on the lingual surface was somewhat different from that on the labial surface.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 12 (1973), S. 313-321 
    ISSN: 1432-0827
    Keywords: Cathepsin D ; Extracellular ; Ossification ; Immunocytochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé De la cathepsine D extracellulaire d'origine principalement ostéoblastique a été démontrée par immunohistochimie dans le cartilage en voide de calcification de cultures d'os des membres d'embryons de poulet. L'intérêt de ce fait pour l'ossification est discuté.
    Abstract: Zusammenfassung Es wurde mit einer immunohistochemischen Methode gezeigt, daß extrazelluläres Kathepsin D, welches hauptsächlich aus Osteoblasten gewonnen wurde, Knorpel von kultivierten Knochen von Kükenembryonen mineralisiert. Die Bedeutung dieser Feststellung für den Mechanismus der Knochenbildung wird diskutiert.
    Notes: Abstract Extracellular cathepsin D derived mainly from osteoblasts has been demonstrated immunohistochemically in ossifying cartilage of cultured embryonic chick limb bones. The relevance of this observation to the mechanism of ossification is discussed.
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