[Clinical and genetic analysis of a pedigree affected with cytochrome P450 oxidoreductase deficiency].

OBJECTIVE:To explore the clinical features and molecular basis of a Chinese pedigree with two siblings affected by cytochrome P450 oxidoreductase deficiency (PORD). METHODS:Clinical features of the patients were reviewed, and their genomic DNA was subjected to next generation sequencing (NGS). RESULTS:The two siblings presented peculiar facies, genital hypoplasia and skeletal deformity. NGS revealed that both have carried compound heterozygous variants of the POR gene, namely c.1370G>A and c.517-19_517-10delGGCCCCTGTGinsC, which were respectively inherited from their parents. CONCLUSION:Both siblings were diagnosed with PORD based on sequencing of the POR gene. The newly discovered POR c.517-19_517-10delGGCCCCTGTGinsC has enriched the spectrum of PORD-related genetic variants.

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