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Expanding the Clinical Spectrum of Mitochondrial Citrate Carrier (SLC25A1) Deficiency: Facial Dysmorphism in Siblings with Epileptic Encephalopathy and Combined D,L-2-Hydroxyglutaric Aciduria.

ABSTRACT: Recessive mutations in SLC25A1 encoding mitochondrial citrate carrier cause a rare inherited metabolic disorder, combined D,L-2-hydroxyglutaric aciduria (D,L-2-HGA), characterized by epileptic encephalopathy, respiratory insufficiency, developmental arrest and early death. Here, we describe two siblings compound heterozygotes for null/missense SLC25A1 mutations, c.18_24dup (p.Ala9Profs*82), and c.134C>T (p.Pro45Leu). These children presented with classic clinical features of D,L-2-HGA, but also showed marked facial dysmorphism. Additionally, there was prominent lactic acidosis in one of the siblings. Our observations suggest that facial dysmorphism is a previously unrecognized but an important diagnostic feature of SLC25A1 deficiency and expand the clinical phenotype linked to SLC25A1 mutations.

SUBMITTER: Prasun P 

PROVIDER: S-EPMC4501236 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Expanding the Clinical Spectrum of Mitochondrial Citrate Carrier (SLC25A1) Deficiency: Facial Dysmorphism in Siblings with Epileptic Encephalopathy and Combined D,L-2-Hydroxyglutaric Aciduria.

Prasun Pankaj P   Young Sarah S   Salomons Gajja G   Werneke Andrea A   Jiang Yong-Hui YH   Struys Eduard E   Paige Mikell M   Avantaggiati Maria Laura ML   McDonald Marie M  

JIMD reports 20150123

Recessive mutations in SLC25A1 encoding mitochondrial citrate carrier cause a rare inherited metabolic disorder, combined D,L-2-hydroxyglutaric aciduria (D,L-2-HGA), characterized by epileptic encephalopathy, respiratory insufficiency, developmental arrest and early death. Here, we describe two siblings compound heterozygotes for null/missense SLC25A1 mutations, c.18_24dup (p.Ala9Profs*82), and c.134C>T (p.Pro45Leu). These children presented with classic clinical features of D,L-2-HGA, but also  ...[more]

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