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The electron microscopic localization of cations to pancreatic islets of langerhans and their possible role in insulin secretion
Earlier antimonate techniques for electron microscopic localization of sodium were applied to isolated islets of Langerhans obtained by partial collagenase digestion of mouse and rabbit pancreas.Expand
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Ultrastructural localization of calcium in unfertilized sea-urchin eggs.
The pyroantimonate technique was employed to identify the binding sites for calcium in unfertilized Arbacia punctulata and Strongylocentrotus purpuratus eggs. Since antimony is non-specific and bindsExpand
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CHANGES IN PANCREATIC ACINAR CELLS DURING PROTEIN DEPRIVATION
After 10 days of a protein-free diet the acinar cells of the rat pancreas showed a coarsening of nuclear matrix, depletion of zymogen granules, some loss of ribosomes, and a widening of the spacesExpand
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THE DEGENERATIVE CHANGES IN PANCREATIC ACINAR CELLS CAUSED BY DL-ETHIONINE
Degeneration of pancreatic acinar cells in rats injected with ethionine was studied by electron microscopy. The most conspicuous morphologic lesions occurred in the ergastoplasm. There was a wideningExpand
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RESTITUTION OF PANCREATIC ACINAR CELLS FOLLOWING ETHIONINE
The regeneration of the pancreatic acinar cell was studied at four time periods after ethionine had destroyed most of the acinar cells. Within 2 days of the last ethionine injection, small basophilicExpand
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An Electron Microscope Study of the Salamander Thyroid during Hormonal Stimulation
  • L. Herman
  • Biology, Medicine
  • The Journal of biophysical and biochemical…
  • 1 February 1960
Cytological changes in thyroid glands following administration of thyroid-stimulating hormone (TSH), were studied in adult salamanders, Ambystoma tigrinum, Triturus torosus, and Triturus viridescensExpand
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Localization of a thrombin-sensitive calcium pool in platelets.
Electron microscopic x-ray microprobe analysis of pyroantimonate precipitates in platelets fixed in osmium tetroxide-pyroantimonate revealed calcium localization in the nucleoids of alpha-granules.Expand
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The presence of an axial structure in the microvillus of the mouse convoluted proximal tubular cell.
  • O. Hanssen, L. Herman
  • Biology, Medicine
  • Laboratory investigation; a journal of technical…
  • 1 August 1962
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Stereological analysis of normal rabbit pancreatic islets.
Stereological methods were applied to obtain morphometric data related to pancreatic islets of Langerhans in the normal rabbit. By light microscopy, it was found that 1 mm3 of pancreatic parenchymaExpand
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