Light- and Electron-microscopic Demonstration of Enkephalin-like Immunoreactivity in Paraganglia of the Human Urinary Bladder
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Cell Biology
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The distribution of enkephalin-like immunoreactivity in paraganglia of the urinary bladder of adult humans was studied by use of immuno-electron microscopy. All paraganglionic cells were positively stained. Enkephalin-like immunoreactivity was located in chromaffin granules. Chromaffin cells in the paraganglia showed only few degenerative features, suggesting undisturbed function of the cells.
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