title: Mitochondrial Factors and VACTERL Association-Related Congenital Malformations.
abstract: VACTERL/VATER association is a group of congenital malformations characterized by at least 3 of the following findings: vertebral defects, anal atresia, cardiac defects, tracheo-esophageal fistula, renal anomalies, and limb abnormalities. To date, no unifying etiology for VACTERL/VATER association has been established, and there is strong evidence for causal heterogeneity. VACTERL/VATER association has many overlapping characteristics with other congenital disorders that involve multiple malformations. In addition to these other conditions, some of which have known molecular causes, certain aspects of VACTERL/VATER association have similarities with the manifestations of disorders caused by mitochondrial dysfunction. Mitochondrial dysfunction can result from a number of distinct causes and can clinically manifest in diverse presentations; accurate diagnosis can be challenging. Case reports of individuals with VACTERL association and confirmed mitochondrial dysfunction allude to the possibility of mitochondrial involvement in the pathogenesis of VACTERL/VATER association. Further, there is biological plausibility involving mitochondrial dysfunction as a possible etiology related to a diverse group of congenital malformations, including those seen in at least a subset of individuals with VACTERL association.
authors: Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Md., USA.
authors: S
authors: S
authors: Siebel
authors: B D
authors: BD
authors: Solomon
keywords: Congenital malformations; Inborn errors of metabolism; Mitochondrial dysfunction; Respiratory chain; VACTERL; VATER
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