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Compound heterozygous mutations of ACADS gene in newborn with short chain acyl-CoA dehydrogenase deficiency: case report and literatures review.


ABSTRACT: Short-chain acyl-CoA dehydrogenase deficiency (SCADD) is a rare autosomal recessive mitochondrial disorder of fatty acid ?-oxidation, and is associated with mutations in the acyl-CoA dehydrogenase (ACADS) gene. Recent advances in spectrometric screening for inborn errors of metabolism have helped detect several metabolic disorders, including SCADD, without symptoms in the neonate period. This allows immediate initiation of treatment and monitoring, so they remain largely symptomless metabolic disease. Here, we report a 15-month-old asymptomatic male, who was diagnosed with SCADD by newborn screening. Spectrometric screening for inborn errors of metabolism 72 hours after birth revealed an elevated butyrylcarnitine (C4) concentration of 2.25 µmol/L (normal, <0.99 µmol/L). Urinary excretion of ethylmalonic acid was also elevated, as detected by urine organic acid analysis. To confirm the diagnosis of SCADD, direct sequencing analysis of 10 coding exons and the exon-intron boundaries of the ACADS gene were performed. Subsequent sequence analysis revealed compound heterozygous missense mutations c.164C>T (p.Pro55Leu) and c.1031A>G (p.Glu344Gly) on exons 2 and 9, respectively. The patient is now growing up, unretarded by symptoms such as seizure and developmental delay.

SUBMITTER: An SJ 

PROVIDER: S-EPMC5177710 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Compound heterozygous mutations of <i>ACADS</i> gene in newborn with short chain acyl-CoA dehydrogenase deficiency: case report and literatures review.

An Se Jin SJ   Kim Sook Za SZ   Kim Gu Hwan GH   Yoo Han Wook HW   Lim Han Hyuk HH  

Korean journal of pediatrics 20161130 Suppl 1


Short-chain acyl-CoA dehydrogenase deficiency (SCADD) is a rare autosomal recessive mitochondrial disorder of fatty acid β-oxidation, and is associated with mutations in the acyl-CoA dehydrogenase (<i>ACADS</i>) gene. Recent advances in spectrometric screening for inborn errors of metabolism have helped detect several metabolic disorders, including SCADD, without symptoms in the neonate period. This allows immediate initiation of treatment and monitoring, so they remain largely symptomless metab  ...[more]

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