| Abstract: | The staining properties of secretory granules present in pancreatic duct glands and in secretory cells of pancreatic duct epithelia are studied in cat, dog, and man. The secretory material contains histochemically detectable disulfide groups and tryptophan. The mucosubstance is characterized as GC-mucin B (2.5) A (0.8 MgCl2), in part N (i.e. a sialoglycoprotein with vic-glycols, sialic acid carboxyls, being basophil at pH = 2.5, alcianophil in the presence of 0.8 M MgCl2, and in part sensitive to digestion with alpha-neuraminidase). |
