title: Tannic acid as an electron-dense probe in the testis.
abstract: The use of tannic acid to preserve and promote the staining of protein constituents of the extracellular fluid is described. Its usefulness for delineating the extracellular compartment and detecting changes in capillary permeability is illustrated in experiments on the testis.
mesh_terms: D000818:Animals; D002199:Capillary Permeability; D004577:Electron Probe Microanalysis; D005110:Extracellular Space / Q000032:analysis; D047348:Hydrolyzable Tannins; D008297:Male; D011506:Proteins / Q000032:analysis; D051381:Rats; D013194:Staining and Labeling; D013634:Tannins; D013737:Testis / Q000648:ultrastructure*
chemical_list: D047348:Hydrolyzable Tannins; D011506:Proteins; D013634:Tannins