Biotin-responsive basal ganglia disease in ethnic Europeans with novel SLC19A3 mutations.

Abstract : OBJECTIVE: To report the first 2 European cases of biotin-responsive basal ganglia disease and novel SLC19A3 mutations. DESIGN: Case reports. SETTING: University hospital. Patients A 33-year-old man and his 29-year-old sister, both of Portuguese ancestry, presented with recurrent episodes of encephalopathy. Between episodes patients exhibited generalized dystonia, epilepsy, and bilateral hyperintensities of the caudate and putamen. MAIN OUTCOME MEASURES: Clinical and radiologic findings. RESULTS: Administration of high doses of biotin or of a combination of biotin and thiamine during encephalopathies resulted in spectacular clinical and radiologic improvement in both patients. Sequencing of the SLC19A3 disclosed 2 novel mutations, both of which created premature stop codons in the protein sequence of hTHTR2. CONCLUSION: This study demonstrates that biotin-responsive basal ganglia disease is a panethnic condition. A therapeutic trial with high doses of biotin and thiamine seems mandatory in every unexplained encephalopathy with bilateral lesions of putamen and caudate nuclei.
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JAMA neurology, American Medical Association (imprimé) / 2010, 67 (1), pp.126-30. 〈10.1001/archneurol.2009.293〉
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Contributeur : Olivier Colliot <>
Soumis le : jeudi 28 février 2013 - 20:09:23
Dernière modification le : mercredi 21 mars 2018 - 18:57:48

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Rabab Debs, Christel Depienne, Agnès Rastetter, Agnès Bellanger, Bertrand Degos, et al.. Biotin-responsive basal ganglia disease in ethnic Europeans with novel SLC19A3 mutations.. JAMA neurology, American Medical Association (imprimé) / 2010, 67 (1), pp.126-30. 〈10.1001/archneurol.2009.293〉. 〈hal-00795782〉

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