Abstract
The authors report the rare association of Prader-Willi syndrome and short-chain acyl-CoA dehydrogenase gene variant. Prader-Willi syndrome, associated with paternal chromosome 15q11-q13 silencing, is characterized by neonatal/infantile hypotonia, growth failure, and neurodevelopmental delays in the first 1 to 2 years of life, typically followed by hyperphagia and obesity. Short-chain acyl-CoA dehydrogenase gene variant, with 625 G-to-A and 511 C-to-T changes, impairs C4-C6 fatty acid metabolism and variably causes neonatal/infantile hypotonia with developmental delays. The authors' patient continues to exhibit the classic severe growth failure of early infancy Prader-Willi syndrome at 40 months. Extensive laboratory investigations indicate that the short-chain acyl-CoA dehydrogenase gene variant is likely preventing or delaying the normal expression of the Prader-Willi syndrome phenotype.
MeSH terms
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Brain Diseases, Metabolic, Inborn / enzymology
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Brain Diseases, Metabolic, Inborn / genetics*
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Brain Diseases, Metabolic, Inborn / physiopathology
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Butyryl-CoA Dehydrogenase / genetics*
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Child, Preschool
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Chromosomes, Human, Pair 15 / genetics
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DNA Mutational Analysis
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Developmental Disabilities / enzymology
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Developmental Disabilities / genetics
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Developmental Disabilities / physiopathology
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Female
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Gene Silencing / physiology
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Genetic Markers / genetics
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Genetic Predisposition to Disease / genetics*
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Genotype
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Growth Disorders / enzymology
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Growth Disorders / genetics*
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Growth Disorders / physiopathology
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Humans
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Lipid Metabolism Disorders / enzymology
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Lipid Metabolism Disorders / genetics
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Lipid Metabolism Disorders / physiopathology
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Muscle Hypotonia / enzymology
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Muscle Hypotonia / genetics
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Muscle Hypotonia / physiopathology
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Mutation / genetics
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Phenotype
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Polymorphism, Genetic / genetics
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Prader-Willi Syndrome / enzymology
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Prader-Willi Syndrome / genetics*
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Prader-Willi Syndrome / physiopathology
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Suppression, Genetic / genetics*
Substances
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Genetic Markers
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Butyryl-CoA Dehydrogenase