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Remarkable motor recovery after riboflavin therapy in adult-onset Brown–Vialetto–Van Laere syndrome

Research output: Contribution to journalArticlepeer-review

James A. Bashford, Fahmida A. Chowdhury, Chris E. Shaw

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalPRACTICAL NEUROLOGY
Volume17
Issue number1
Early online date24 Oct 2016
DOIs
Accepted/In press12 Sep 2016
E-pub ahead of print24 Oct 2016
Published1 Feb 2017

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Abstract

The clinical diagnosis of Brown—Vialetto—Van Laere syndrome in this woman with rapidly progressive pontobulbar palsy led to empirical high-dose oral riboflavin (1200 mg/day) therapy. This resulted in a dramatic improvement in her motor function from being anarthric, dysphagic, tetraparetic and in ventilatory failure to living independently with mild dysarthria and distal limb weakness. DNA sequencing of the SLC52A3 gene found compound heterozygous C-terminus mutations, V413A1/D461Y, consistent with recent reports of mutations within the riboflavin transporter genes (SLC52A2 and SLC52A3) in this condition. Early diagnosis and empirical riboflavin therapy can lead to major motor recovery in this condition, that can be sustained with long-term maintenance therapy.

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