Mitochondrial trifunctional protein deficiency: a rare cause of adult-onset rhabdomyolysis.

Teerin Liewluck, Manpreet S. Mundi, Michelle L. Mauermann

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Mitochondrial trifunctional protein deficiency is a rare autosomal recessive disorder of mitochondrial fatty acid β-oxidation that may be due to mutations in 2 different nuclear genes, HADHA and HADHB. Perturbation of this multienzyme complex compromises the oxidation of long-chain fatty acids, which leads to multiorgan dysfunction. Childhood- or adolescent-onset recurrent rhabdomyolysis is a common muscular manifestation and is preceded frequently by clinically overt peripheral neuropathy. In this report we describe a patient with late adult-onset recurrent rhabdomyolysis. Despite normal sensory examination, nerve conduction studies showed a mild axonal peripheral neuropathy. The acylcarnitine profile showed elevated long-chain and 3-hydroxy long-chain acylcarnitine species. HADHA sequencing revealed known compound heterozygous mutations c.180+3A>G (p.Thr37SerfsX6) and c.1528G>C (p.Glu510Gln). During a 10-month follow-up period, he had no further episodes of rhabdomyolysis after appropriate dietary modifications. Mitochondrial trifunctional protein deficiency should be considered in patients with adult-onset recurrent rhabdomyolysis, especially in those with either clinically overt or subclinical peripheral neuropathy.

Original languageEnglish (US)
Pages (from-to)989-991
Number of pages3
JournalMuscle & Nerve
Volume48
Issue number6
StatePublished - Dec 2013

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ASJC Scopus subject areas

  • Physiology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)

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