Electron microscope observations on the glassy layer of the hair follicle |
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| Authors: | ROGERS G E |
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| Affiliation: | 1. EBRI Rita Levi-Montalcini Foundation, Rome 00161, Italy;2. Need Institute, Milan 20121, Italy;3. Department of Physics, University of Kurdistan, Sanandaj 871, Iran;4. Department of Neurorehabilitation Sciences, Casa di Cura Igea, Milan 20144, Italy.;1. Université Paris Cité, CNRS, INSERM, UTCBS, Chemical and Biological Technologies for Health Group (utcbs.u-paris.fr), 75006 Paris, France;2. Université Paris Cité, CNRS, CiTCoM, 75006 Paris, France;3. Université Paris Cité, UAR3612 CNRS, US25 INSERM, Cellular and Molecular Imaging Facility, 75006 Paris, France |
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| Abstract: | The structure of the glassy layer of hair follicles of young mice and adult guinea pigs was studied in the electron microscope.The glassy layer of a fully-formed follicle of the guinea pig consists of long fibrils of collagen-type which are about 500 Å in diameter. They are organized into two arrays. An inner array adjoining the basal borders of the cells of the outer root sheath, and parallel to the follicle length, and an outer array orientated at right angles to the first.In the developing follicles of young mice the fibrils of the glassy layer are about 200 Å in diameter. They develop in the space between the outer root sheath and a layer of fibroblasts which surrounds each follicle. |
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