argyrophil cells

argyrophil cells
Neuroendocrine cells that take up silver ions from a staining solution but require the addition of a reducing agent to precipitate metallic silver (unlike argentaffin cells which do not). Carcinoids of the foregut tend to be argyrophilic whereas those of the lower intestine tend to be argentaffinic.

Dictionary of molecular biology. 2004.

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  • Grimelius argyrophil method — a method for demonstrating granule containing cells such as APUD cells. Incubation in a buffered silver nitrate solution is followed by reduction in a hydroquinone and sodium sulfite solution; reactive cell granules appear black …   Medical dictionary

  • argyrophilic — ar·gyr·o·phil·ic .är jə (.)rō fil ik, rə also ar·gyr·o·phil är jə (.)rō .fil, rə or ar·gyr·o·phile .fīl adj having an affinity for silver used of certain cells, structures, or tissues that selectively reduce silver salts to metallic silver… …   Medical dictionary

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