Late-onset metachromatic leukodystrophy clinically presenting as isolated peripheral neuropathy: Compound heterozygosity for the IVS2+1G→a mutation and a newly identified missense mutation (Thr408Ile) in a Spanish family

2001 ◽  
Vol 50 (1) ◽  
pp. 108-112 ◽  
Author(s):  
Manuel Comabella ◽  
John S. Waye ◽  
Nuria Raguer ◽  
Barry Eng ◽  
Carmen Domínguez ◽  
...  
2016 ◽  
Vol 51 (3) ◽  
pp. 683-687 ◽  
Author(s):  
Katharina Stoeck ◽  
Marios Nikos Psychogios ◽  
Andreas Ohlenbusch ◽  
Robert Steinfeld ◽  
Jens Schmidt

Author(s):  
Marion B. Coulter-Mackie ◽  
Derek A. Applegarth ◽  
Jennifer R. Toone ◽  
Liane Gagnier ◽  
André R. Anzarut ◽  
...  

Abstract:Background:Metachromatic leukodystrophy (MLD) is a genetic neurodegenerative disorder resulting from a deficiency of arylsulfatase A. Late onset forms are relatively rare. Central nervous system (CNS) involvement is characteristic at all ages.Methods:A patient in her late 40s with peripheral neuropathy was assessed by EEG, evoked potentials, CTand nerve conduction studies. Nerve and muscle biopsy samples were investigated by electron microscopy. Arylsulfatase A activity in leukocytes and excreted cerebroside sulfate were determined. The arylsulfatase A gene was investigated for mutations using polymerase chain reaction (PCR) and DNAsequencing. The identified mutation was expressed transiently in African green monkey kidney (COS) cells to determine the effect of the mutation on arylsulfatase A activity.Results:Central nervous system functions were normal. Nerve conduction velocities were decreased. Sural nerve biopsy showed inclusions typical of MLD. Arylsulfatase A was less than 5% of normal. A homozygous mutation thr286pro was identified in the arylsulfatase A gene and demonstrated to be deleterious through transient expression studies.Conclusions:Our patient has a progressive peripheral neuropathy but has apparently intact CNS function at her present age of 57 years. Biochemical, physiological and pathological findings are consistent with a diagnosis of MLD. A homozygous mutation, thr286pro, found in her arylsulfatase A gene, decreased enzyme activity to a level consistent with a late onset form of MLD.


2017 ◽  
Vol 38 (9) ◽  
pp. 1721-1722 ◽  
Author(s):  
Liana Africa ◽  
Maria Margollicci ◽  
Simona Salvatore ◽  
Bita Shalbafan ◽  
Luana Peruzzi ◽  
...  

2012 ◽  
Vol 34 (1) ◽  
pp. 79-83 ◽  
Author(s):  
A. Malandrini ◽  
C. D’Eramo ◽  
S. Palmeri ◽  
C. Gaudiano ◽  
S. Gambelli ◽  
...  

1993 ◽  
Vol 2 (4) ◽  
pp. 261-267 ◽  
Author(s):  
John S. Harvey ◽  
Paul V. Nelson ◽  
William F. Carey ◽  
Evelyn F. Robertson ◽  
C. Phillip Morris

2007 ◽  
Vol 143 (9) ◽  
Author(s):  
Agustín España ◽  
Fermin García-Amigot ◽  
Leyre Aguado ◽  
Jesús García-Foncillas

2001 ◽  
Vol 184 (2) ◽  
pp. 149-153 ◽  
Author(s):  
Tsuyoshi Yoshihara ◽  
Fumio Kanda ◽  
Masahiko Yamamoto ◽  
Hiroyuki Ishihara ◽  
Ken-ichiro Misu ◽  
...  

1987 ◽  
Vol 75 (1) ◽  
pp. 64-69 ◽  
Author(s):  
I. Reider-Grosswasser ◽  
N. Bornstein

Sign in / Sign up

Export Citation Format

Share Document