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Fachbereich Veterinärmedizin



    Method for preparing thin sections of untreated equine hoof horn for electron microscopic examination (2002)

    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Budras, Klaus-Dieter
    Schiel, Christina
    Mülling, Christoph Karl Wolfgang
    Patan, Bianca
    Microscopy research and technique
    Bandzählung: 58
    Heftzählung: 2
    Seiten: 114 – 20
    ISSN: 1059-910x
    Pubmed: 12203712
    Institut für Veterinär-Anatomie

    Koserstr. 20
    14195 Berlin
    +49 30 838 53555

    Abstract / Zusammenfassung

    The preparation of hard tissues such as the equine hoof horn for electron microscopic examination is very difficult. In particular the penetration of fixatives and chemicals used during fixation and embedding is a problem. The objective of this study was to find and implement an alternative method enabling the preparation of high-quality thin sections of hoof horn and other hard tissue, which maintains the hard tissue ultrastructure and can be used for immuno-labeling. Compared to commonly used fixation and embedding techniques, the preparation of thin sections from untreated material method saves time and material and provides equivalent ultrastructural information. Furthermore, thin sections from untreated material are significantly larger and more homogeneous, more resistant to the electron ray, as well as more suitable for sectioning. The electron microscopical pictures obtained allow a comparison to previous test results achieved with fixed and embedded material. Using the preparation of thin sections from untreated material method, fixation and embedding artifacts are avoided, providing a clearer interpretation of the electron microscopical findings. Considerable advantages are achieved by using immunohistochemical techniques with untreated horn specimens because fixation invariably decreases antigenicity.