Overview

The three most striking characteristics of the cornea are: a) Its structure or rather its perfectly regular architectonic, by virtue of which it is transparent. b) The absence of vessels, the cornea being nourished by the perilimbic vessels, the endothelial surface in communication with the aqueous humour and the epithelial surface in contact with the pre-corneal film. c) The very slow turnover of the cells, that is to say the keratocytes, with the result that the metabolism of the cornea is very weak. It is this third characteristic which justifies our present investigation. The keratocytes, which are apparently inactive, have in fact a latent activity. They can be activated by central corneal incisions and also by tissue cultures. Under either of those conditions, the keratocytes become very active, develop all the cytoplasmic organites and produce mucopoly­ saccharides as well as the precursors of the collagen (Fig. 1). In order to study the pathological keratocyte, we chose a storage disease, wherein the catabolism of the mucopolysaccharides is blocked, namely the macular dystrophy of the cornea. We undertook the same investigation both for normal and for pathologi­ cal corneas and studied the keratocyte 'in situ' and in tissue cultures using various microscopical and histochemical techniques. In macular dystrophy, we investigated also the deteriorations secondary to the changes in the keratocytes.

Full Product Details

Author:   J. François ,  V. Victoria-Troncoso
Publisher:   Springer
Imprint:   Springer
Edition:   Softcover reprint of the original 1st ed. 1980
Dimensions:   Width: 15.50cm , Height: 1.10cm , Length: 23.50cm
Weight:   0.332kg
ISBN:  

9789400991798

ISBN 10:   9400991797
Pages:   210
Publication Date:   10 November 2011
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand  
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Table of Contents

one: Normal keratocytes.- I: Material and methods.- II: Normal keratocytes in situ.- III: Architectonic of the cornea.- IV: The keratocytes in the process of cicatrisation of the corneal stroma.- V: Keratocytes in tissue culture.- two: Pathological keratocytes (Macular dystrophy of the cornea).- VI.- VII: Microscopical and histochemical study of macular dystrophy.- VIII: Transmission electron microscopy of the corneal stroma in macular dystrophy of the cornea.- IX: Scanning electron microscopy of the corneal stroma in macular dystrophy.- X: Changes of the epithelium, the base membrane, the endothelium and the Descemet’s membrane in macular dystrophy of the cornea.- XI: Histochemical and microscopical study of corneal cultures from macular dystrophy.- XII: Transmission electron microscopy of cultures of the corneal stroma in macular dystrophy.- XIII: Scanning electron microscopy of cultures of macular dystrophy of the cornea.- XIV: Vital staining of the lysosomes in normal keratocytes and in keratocytes from macular dystrophy.- XV: Active biological substance present in normal keratocytes and capable of acting on the stored mucopolysaccharides in macular dystrophy of the cornea.- XVI: Pathogenesis of macular dystrophy of the cornea.- XVII: Treatment of macular dystrophy of the cornea.- Summary.- Summary.

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