Chinese patients with adrenoleukodystrophy and Zellweger spectrum disorder presenting with hereditary spastic paraplegia.
Parkinsonism Relat Disord
; 65: 256-260, 2019 08.
Article
em En
| MEDLINE
| ID: mdl-31227335
ABSTRACT
INTRODUCTION:
X-linked adrenoleukodystrophy (ALD) and Zellweger spectrum disorder (ZSD) are peroxisomal diseases characterized by accumulation of very long chain fatty acids (VLCFA) in plasma and tissues. Considering the wide variability of manifestation, patients of ALD and atypical ZSD are easily misdiagnosed as hereditary spastic paraplegia (HSP) on their clinical grounds. Here, we aimed to determine the frequency of peroxisome diseases and compare their phenotypic spectra with HSP.METHODS:
We first applied targeted sequencing in 120 pedigrees with spastic paraplegia, and subsequently confirmed 74 HSP families. We then performed whole exome sequencing for the probands of the 46 remaining pedigrees lacking known HSP-causal genes. Detailed clinical, radiological features, and VLCFA analyses are presented.RESULTS:
Seven ALD pedigrees with ABCD1 mutations and one ZSD family harboring bi-allelic mutations of PEX16 were identified. Clinically, in addition to spastic paraplegia, four ALD probands presented adrenocortical insufficiency, and the ZSD proband and her affected sister both developed thyroid problems. VLCFA analysis showed that ratios of C24/C22 and C26/C22 were specifically increased in ALD probands. Moreover, three ALD probands and the ZSD proband had abnormalities in brain or spinal imaging.CONCLUSIONS:
Our study reports the first ZSD case in China that manifested spastic paraplegia, and emphasized the finding that peroxisomal diseases comprise a significant proportion (8/120) of spastic paraplegia entities. These findings extend our current understanding of the ALD and ZSD diseases.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Paraplegia Espástica Hereditária
/
Síndrome de Zellweger
/
Adrenoleucodistrofia
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
Parkinsonism Relat Disord
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
China