Urinary Cyclic AMP: Relation to Calcium Balance and Comparison of Assay Methods

Abstract
Urinary cyclic[c]AMP [of value as an index of parathyroid activity] was determined in 84 males [human]. Two protein-binding assays were used: the method of Gilman and the Amersham assay kit. The results were in close agreement. The excretion of cAMP was not correlated to urinary Ca or to estimated Ca intake.