Figure 1From: Persistent elevation of urine aquaporin-2 during water loading in a child with nephrogenic syndrome of inappropriate antidiuresis (NSIAD) caused by a R137L mutation in the V2 vasopressin receptorWestern immunoblot showing urine AQP2 excretion from 60 minutes prior to 240 minutes following oral water load. AQP2-BSA standards included 50, 100, 150, and 200 ng.Back to article page