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MCAD deficiency caused by compound heterozygous pathogenic variants in ACADM
Fumikatsu Nohara1, Go Tajima2, Hideo Sasai3
1Department of Pediatrics, Asahikawa-Kosei General Hospital, Hokkaido, Japan.
Abstract:
Medium-chain acyl-coenzyme A dehydrogenase (MCAD) deficiency is an autosomal recessive disease caused by biallelic pathogenic ACADM variants. We report a case of an asymptomatic Japanese girl with MCAD deficiency caused by compound heterozygous pathogenic variants (NM_000016.5:c.1040G > T (p.Gly347Val) and c.449_452delCTGA (p.Thr150ArgfsTer4)). Because the MCAD residual activity in lymphocytes of the patient was below the limit of quantification, both variants are likely to cause complete loss of MCAD enzymatic activity.
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