Homozygosity for the W151X stop mutation in the delta7-sterol reductase gene (DHCR7) causing a lethal form of Smith-Lemli-Opitz syndrome: retrospective molecular diagnosis.

Abstract excerpt

Smith-Lemli-Opitz syndrome (SLOS) is a multiple congenital anomalies syndrome caused by an abnormality in cholesterol metabolism. The clinical severity may vary from very mild to lethality in utero, making diagnosis difficult at both ends of the spectrum. Patients with severe SLOS might often esc...

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