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Arkh Anat Gistol Embriol. 1984 Jun;86(6):58-62.

[Ultrastructural identification of argyrophil and argentaffin cells of the gastric mucosa in the rat].

[Article in Russian]


Ultrastructure of endocrine cells impregnated in the rat gastric mucosa by Grimelius method (identification of argyrophilia) and by Masson--Hamperl method (identification of argentaffinity) and influence of various fixatives on the structure and properties of the secretory granules in these cells have been studied. Fixation of the material in paraformaldehyde or glutaraldehyde varies in its effect on the granule structure of EC-, D1- and ECL-cells, while its influence on the granule structure of G-, D- and AL-cells is identical. The granules of EC-, ECL- and G-cells are argyrophil, and only those of EC-cells are argentaffin. Weak argyrophilia, which is evidently not appearant at the light-optical level, is specific for granules of D1- and AL-cells. Fixation in paraformaldehyde and especially the subsequent treatment in osmium tetroxide results in increasing argyrophilia of the endocrine cells, as compared to fixation in glutaraldehyde. Varieties in the effect of the fixatives do not prevent ultrastructural and histochemical identification of the endocrine cell types.

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