Prouroguanylin, and synthetic analogs or proteolytic cleavage products derived from it, as therapeutic and diagnostic agents for diseases involving salt and/or fluid homeostasis
A method for treating a disorder characterized by salt retention, fluid retention, and combinations thereof. A method for determining the presence of or the progression of a disorder characterized by salt retention, fluid retention, salt loss, fluid loss, and combinations thereof. An immunoassay kit for detecting a level of prouroguanylin in a sample.