Asymptomatic maternal combined homocystinuria and methylmalonic aciduria (cblC) detected through low carnitine levels on newborn screening.
نویسندگان
چکیده
A symptom-free woman gave birth to a girl with a low carnitine level on newborn screening. The baby was unaffected, but the mother had biochemical abnormalities and mutations characteristic of the cblC defect of vitamin B(12) metabolism (late-onset form). This patient with cblC was detected through her infant's newborn screening.
منابع مشابه
CblC Type Methylmalonic Aciduria with a Novel Homozygous Mutation: A Case Report
Background CombinedMethylmalonic Aciduria (MMA), and homocystinuria CblC type is the most common inborn error of cobalamin metabolism with 77 mutations identified till date in the MMACHC gene. The disease has early and late presentations with varied clinical features. Case report A pair of preterm monochorionic twins was born to non-consanguineous parents with history of 2 previous infant deat...
متن کاملWhole Exome Sequencing Identifies an Adult-onset Case of Methylmalonic Aciduria and Homocystinuria Type C (cblC) with Non-syndromic Bull’s Eye Maculopathy
BACKGROUND Methylmalonic aciduria and homocystinuria type C (cblC), a disorder of vitamin B12 (cobalamin) metabolism caused by mutations in the MMACHC gene, presents with many systemic symptoms, including neurological, cognitive, psychiatric, and thromboembolic events. Retinal phenotypes, including maculopathy, pigmentary retinopathy, and optic atrophy are common in early onset form of the dise...
متن کاملGenetic analysis of four cases of methylmalonic aciduria and homocystinuria, cblC type#.
Methylmalonic aciduria and homocystinuria, cblC type, is the most common disorder of intracellular vitamin B12 (cobalamin, cbl) metabolism, which results in impaired biosynthesis of methylcobalamin and adenosylcobalamin. The gene MMACHC responsible for the cblC type had been identified, which enables molecular diagnostics. Here, we report four cblC type cases, which were identified by the typic...
متن کاملEarly onset methylmalonic aciduria and homocystinuria cblC type with demyelinating neuropathy.
Methylmalonic aciduria and homocystinuria, cblC type, is the most common inborn error of vitamin B(12) (cobalamin) metabolism. The recent cloning of the disease gene, MMACHC, has permitted genotype-phenotype correlation. In a 1-year-old girl, compound heterozygous c.271dupA and c.616C>T mutations in MMACHC were identified as causing an early onset methylmalonic aciduria and homocystinuria, cblC...
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We describe a 3-year-old Hispanic male with cblC-type methylmalonic aciduria and homocystinuria who presented to the emergency department with progressive tachypnea, vomiting, and edema secondary to pulmonary embolism and cor pulmonale. With aggressive medical management, there was complete resolution of right heart failure and pulmonary hypertension after 3 months. Pulmonary embolism is rare i...
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ورودعنوان ژورنال:
- The Journal of pediatrics
دوره 155 6 شماره
صفحات -
تاریخ انتشار 2009