Endocrine Abstracts

It has been hypothesized that primary hyperparathyroidism (PH) has a biphasic disease course. During the first phase hypercalcemia is not yet present. Subsequently, the second phase starts with the development of hypercalcemia. In an attempt to identify differences in the calcium regulating hormonal handling in the clinical setting, we evaluated the hormonal responses of gastrin, PTH, phosphate and ionized calcium to oral peptones (a mixture containing L-amino acids with known...