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Irreversibility of Symptoms with Biotin Therapy in an Adult with Profound Biotinidase Deficiency.

Authors :
Ferreira P
Chan A
Wolf B
Source :
JIMD reports [JIMD Rep] 2017; Vol. 36, pp. 117-120. Date of Electronic Publication: 2017 Feb 21.
Publication Year :
2017

Abstract

We report a 36-year-old woman who exhibited progressive optic atrophy at 13 years old, then stroke-like episodes and spastic diplegia in her 20s. Biotinidase deficiency was not readily considered in the differential diagnosis, and the definitive diagnosis was not made until pathological variants of the biotinidase gene (BTD) were found by exome sequencing. Profound biotinidase deficiency was confirmed by enzyme analysis. Unfortunately, her symptoms did not resolve or improve with biotin treatment. Biotin therapy is essential for all individuals with profound biotinidase deficiency and for preventing further damage in those who already exhibit irreversible neurological damage. Newborn screening for the disorder would have avoided years of clinical symptoms that now appear to be irreversible with biotin treatment.

Details

Language :
English
ISSN :
2192-8304
Volume :
36
Database :
MEDLINE
Journal :
JIMD reports
Publication Type :
Academic Journal
Accession number :
28220409
Full Text :
https://doi.org/10.1007/8904_2017_12