Nom du corpus

Corpus Systématique Animale

Titre du document

Pit-like islets of corneal endothelium

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Mammiferes_v2b_00242
Auteur(s)
  • Jan Wolf Professor
Affiliation(s)
  • Laboratory for Ultrastructure Research of Cells and Tissues, Czechoslovak Academy of Sciences, Albertov 4, Prague 2, Czechoslovakia
Résumé

With the help of replicas and pseudoreplicas (unstained and stained) of the corneal endothelium in numerous mammals many pit-like endothelial islets, which are lighter after staining, can be found. They appear only in the most peripheral zone of the cornea. They consist of flatter cells than the surrounding endothelium but they are surrounded by a higher circular hem. The surface of the islet cells does not show a regular secretory activity of viscous substance production. It shows rather a fine granulation. Considering the transitions of the islets into surrounding endothelium and their development and mass appearance in some sectors, while they are missing in others, we assume that they are transitory formations which are formed by the surrounding endothelium ad hoc and change back again into it. The flattening of the endothelium in the islets can hardly be explained in any other way than by the action of intraocular pressure on the cells or by the decrease of their cytoplasma. This would be possible in those places where the uniform cuticle has been disturbed by depolymerizing enzymes. The intact cuticle would prevent the flattening of the endothelial cells. In this case we could regard the islets as the place of production of depolymerizing enzymes. Then we would have to assume that mammals, in which according to species or even young age the islets are missing, this task is fulfilled by endothelial cells which are dispersed in the endothelium and produce alternately one or the other material.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - clinical medicine
  • 3 - ophthalmology & optometry
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences medicales
Catégories Scopus
  • 1 - Health Sciences ; 2 - Medicine ; 3 - Physiology (medical)
  • 1 - Life Sciences ; 2 - Neuroscience ; 3 - Sensory Systems
  • 1 - Health Sciences ; 2 - Medicine ; 3 - Ophthalmology
Catégories WoS
  • 1 - science ; 2 - ophthalmology
Identifiant ISTEX
B1801C3DE4401B455D33AE5BEA31A37321CA7A6A
Revue

Documenta Ophthalmologica

Année de publication
1968
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.964
Sous-corpus
  • Mammiferes
Type de publication
Journal
ark:/67375/1BB-43GFSTJ1-2
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