In vitro studies of the rate of proinsulin and insulin turnover in seven human insulinomas.

Adenoma, Islet Cell/metabolism,pathology Animals Cattle Centrifugation, Density Gradient Chromatography, Gel Cytoplasmic Granules Humans In Vitro Techniques Insulin/analysis,metabolism Iodine Radioisotopes Leucine Microscopy, Electron Mitochondria Pancreatic Neoplasms/metabolism,pathology Proinsulin/analysis,metabolism Rats Staining and Labeling Subcellular Fractions/analysis Tritium

Insulin Iodine Radioisotopes Tritium Proinsulin Leucine