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Tonduti D, Vanderver A, Berardinelli A, Schmidt JL, Collins CD, Novara F, Di Genni A, Mita A, Triulzi F, Brunstrom-Hernandez JE, Zuffardi O, Balottin U, Orcesi S. MCT8 deficiency: extrapyramidal symptoms and delayed myelination as prominent features. J Child Neurol 2013; 28:795-800. [PMID: 22805248 PMCID: PMC4155008 DOI: 10.1177/0883073812450944] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Monocarboxylate transporter 8 (MCT8) deficiency is an X-linked disorder resulting from an impairment of the transcellular transportation of thyroid hormones. Within the central nervous system thyroid hormone transport is normally mediated by MCT8. Patients are described as affected by a static or slowly progressive clinical picture which consists of variable degrees of mental retardation, hypotonia, spasticity, ataxia and involuntary movements, occasionally paroxysmal. The authors describe the clinical and neuroradiological picture of 3 males patients with marked delayed brain myelination and in which the clinical picture was dominated by early onset nonparoxysmal extrapyramidal symptoms. In one subject a novel mutation is described.
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Affiliation(s)
- Davide Tonduti
- Child Neurology and Psychiatry Unit, IRCCS C. Mondino National Institute of Neurology Foundation, Via Mondino 2, Pavia, Italy.
| | - Adeline Vanderver
- Department of Neurology, Children’s National Medical Center, Washington, DC, USA
| | - Angela Berardinelli
- Child Neurology and Psychiatry Unit, IRCCS C. Mondino National Institute of Neurology Foundation, Pavia, Italy
| | - Johanna L. Schmidt
- Department of Neurology, Children’s National Medical Center, Washington, DC, USA
| | - Christin D. Collins
- Emory Genetics Laboratory, Department of Human Genetics, Emory University, Atlanta, GA, USA
| | - Francesca Novara
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Antonia Di Genni
- Child Neurology and Psychiatry Unit, IRCCS C. Mondino National Institute of Neurology Foundation, Pavia, Italy
| | - Alda Mita
- Child Neurology and Psychiatry Unit, IRCCS C. Mondino National Institute of Neurology Foundation, Pavia, Italy
| | - Fabio Triulzi
- Departments of Radiology and Neuroradiology, Children’s Hospital V. Buzzi-Istituti Clinici di Perfezionamento, Milan, Italy
| | - Janice E. Brunstrom-Hernandez
- Pediatric Neurology Cerebral Palsy Center, Departments of Neurology and Pediatrics, Washington University School of Medicine, St. Louis Children’s Hospital, St. Louis, MO, USA
| | - Orsetta Zuffardi
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Umberto Balottin
- Department of Public Health, Neuroscience, Experimental and Forensic Medicine, Unit of Child Neurology and Psychiatry, University of Pavia, Italy
| | - Simona Orcesi
- Child Neurology and Psychiatry Unit, IRCCS C. Mondino National Institute of Neurology Foundation, Pavia, Italy
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