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The phenylalanine loading test in the differential diagnosis of dystonia

Early diagnosis of dopa-responsive dystonia (DRD) and its delineation from other dystonic syndromes is of great relevance because DRD is an eminently treatable condition. The possible relevance of the phenylalanine loading test (Phe-L) in differentiating DRD from primary focal and generalized dyston...

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Main Authors: Bandmann, Oliver (Author) , Goertz, M. (Author) , Zschocke, Johannes (Author) , Deuschl, Günther (Author) , Jost, W. (Author) , Hefter, H. (Author) , Müller, U. (Author) , Zöfel, P. (Author) , Hoffmann, Georg F. (Author) , Oertel, W. (Author)
Format: Article (Journal)
Language:English
Published: February 25, 2003
In: Neurology
Year: 2003, Volume: 60, Issue: 4, Pages: 700-702
ISSN:1526-632X
DOI:10.1212/01.WNL.0000048205.18445.98
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1212/01.WNL.0000048205.18445.98
Verlag, lizenzpflichtig, Volltext: https://n.neurology.org/content/60/4/700
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Author Notes:O. Bandmann, M. Goertz, J. Zschocke, G. Deuschl, W. Jost, H. Hefter, U. Müller, P. Zöfel, G. Hoffmann, W. Oertel
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Summary:Early diagnosis of dopa-responsive dystonia (DRD) and its delineation from other dystonic syndromes is of great relevance because DRD is an eminently treatable condition. The possible relevance of the phenylalanine loading test (Phe-L) in differentiating DRD from primary focal and generalized dystonia was investigated. A marked difference in the phenylalanine/tyrosine ratio between patients with DRD and patients with other types of dystonia was observed. This indicates that Phe-L may be helpful in the differential diagnosis of dystonias.
Item Description:Gesehen am 22.12.2020
Physical Description:Online Resource
ISSN:1526-632X
DOI:10.1212/01.WNL.0000048205.18445.98

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