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Identification of enterochromaffin cells in adjacent Epon-embedded sections at light and electron microscopic levels

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Summary

Methods for light and electron microscopic comparison of individual argentaffin and argyrophil enterochromaffin cells (EC) in the sheep duodenal mucosa are described. These silver procedures were applied for light microscopy to Epon-embedded sections. The adjacent sections were examined with the electron microscope. The most specific characteristics of the argentaffin and argyrophil EC in electron microscopy are highly osmiophilic cytoplasmic granules. In one cell type these granules are smaller and more roundish than in the another type. These two cell types are stainable both by the argentaffin and argyrophil reactions. No essential difference can be observed in the localization of these elements. It is suggested that both cell types belong to the enterochromaffin system. Both silver methods are also suitable for the light microscopic identification of other intestinal structures in sections adjacent to that sectioned for electron microscopy.

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This work was supported by a grant from the Yrjö Jahnsson Foundation, Helsinki, Finland.

The electron microscopic observations were carried out in the Electron Microscope Laboratory, University of Helsinki.

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Penttilä, A. Identification of enterochromaffin cells in adjacent Epon-embedded sections at light and electron microscopic levels. Z. Zellforsch. 102, 193–204 (1969). https://doi.org/10.1007/BF00335500

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