Abstract
In children, chronic kidney disease (CKD) that results from structural abnormalities and glomerular injury is readily diagnosed; however, most cases of pediatric CKD are of unknown etiology. In this issue of the JCI, Verbitsky and colleagues used chromosomal microarrays to evaluate genomic variation in children with CKD. Compared with control individuals, a substantial proportion of children with idiopathic CKD had clearly identifiable genomic imbalances. Moreover, in some cases, detailed analysis of these imbalances identified pathogenic alterations that were unsuspected based on clinical presentation. The results of this study support genome-wide evaluation for pediatric cases of CKD; however, more work will need to be done before such an approach is widely available in the clinic.
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