In the 1950s and 1960s, several inherited disorders of fluidand electrolyte metabolism were described in which the principaldisturbance appeared to be a specific functional defect in therenal tubule. For most of these diseases, plausible physiologicexplanations were presented, some more convincing than others.In the past five years, genetic and molecular approaches haveelucidated the underlying molecular defects in several of thesedisorders. In some instances, predictions based on the initialphysiologic studies have been confirmed; in others, the molecularanswer has come as a surprise, raising further questions aboutthe physiology of epithelial function. In several . . . [Full Text of this Article]
Magnesium Excretion in Bartter's and Gitelman's Syndromes
Mutations Affecting an Extracellular Calcium-Sensing Receptor
Mutations Affecting a Voltage-Gated Chloride Channel
Mutations Associated with X-Linked Hypophosphatemic Rickets
Conclusions
Source Information
From the Department of Medicine, State University of New York Health Science Center, Syracuse (S.J.S.); the Departments of Medicine (L.M.G.-W., D.G.W.), Pediatrics (L.M.G.-W.), and Physiology (D.G.W.), University of Alabama at Birmingham, Birmingham; and the Medical Research Council Molecular Endocrinology Group, Hammersmith Hospital, London (R.V.T.).
Address reprint requests to Dr. Scheinman at the Department of Medicine, SUNY Health Science Center, 750 East Adams St., Syracuse, NY 13210, or at scheinms@vax.cs.hscsyr.edu.
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