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The cell population in pancreatic islets of amphisbaenidae — a light and electron microscopic study

1970; Wiley; Volume: 167; Issue: 4 Linguagem: Inglês

10.1002/ar.1091670404

1097-0185

William B. Rhoten,

3D Printing in Biomedical Research

Abstract A diversity of cell types have been found in the pancreatic islets of three species of Amphisbaenidae in a light and electron microscopic investigation. The A cells have been characterized as having phosphotungstic acid hematoxylin and orange G positive secretory granules which are electron opaque and 450–500 mμ, in diameter. The B cells possess aldehyde fuchsin reactive granules which are slightly larger than A granules, approximately 550 mμ, and have a variety of profiles in the electron microscope. The D cells are characterized as being fast green positive and argyrophilic in the light microscope, and in the electron microscope have small, 200–300 mμ, secretory granules with a core of moderate electron opacity. In D cells the Golgi apparatus is more highly developed than in A or B cells. Bipes islets contain a presumptive fourth cell type possessing large secretory granules with irregular profiles and focal internal densities. An additional cell type, found in Amphisbaena manni and Bipes , has small, electron opaque granules.