Compound heterozygous mutations in the gamma subunit gene of ENaC (1627delG and 1570-1G-->A) in one sporadic Japanese patient with a systemic form of pseudohypoaldosteronism type 1.

Abstract excerpt

The systemic form of pseudohypoaldosteronism type 1 (PHA1) is a rare autosomal recessive disorder with salt-wasting, hyperkalemia, metabolic acidosis, and multiorgan aldosterone unresponsiveness. Recently, this form of PHA1 was found to be caused by the loss-of-function mutations in the gene of each subunit (alpha, beta, and gamma) of the epithelial sodium channel (ENaC). To investigate the molecular basis of one...

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