Two female infants with clinical and biochemical findings of mineralocortic
oid deficiency are presented. Both cases were diagnosed with aldosterone sy
nthase type-1 deficiency by multisteroid analysis, Two different mutations
were located in the CYP11B2 gene: two homozygous amino acid substitutions (
E188D and V386A) in case 1, and one heterozygous substitution (L324Q) and o
ne heterozygous stop mutation (Y265X) in case 2, Copyright (C) 2000 S. Karg
er AG, Basel.