Correlation Between Vanishing White Matter Disease and Novel Heterozygous EIF2B3 Variants Using Next-Generation Sequencing: A Case Report
Annals of Rehabilitation Medicine
;
: 234-238, 2019.
Article
in English
| WPRIM
| ID: wpr-762621
ABSTRACT
Vanishing white matter (VWM) disease is an autosomal recessive disorder that affects the central nervous system of a patient, and is caused by the development of pathogenic mutations in any of the EIF2B1-5 genes. Any dysfunction of the EIF2B1-5 gene encoded eIF2B causes stress-provoked episodic rapid neurological deterioration in the patient, followed by a chronic progressive disease course. We present the case of a patient with an infantile-onset VWM with the pre-described specific clinical course, subsequent neurological aggravation induced by each viral infection, and the noted consequent progression into a comatose state. Although the initial brain magnetic resonance imaging did not reveal specific pathognomonic signs of VWM to distinguish it from other types of demyelinating leukodystrophy, the next-generation sequencing studies identified heterozygous missense variants in EIF2B3, including a novel variant in exon 7 (C706G), as well as a 0.008% frequency reported variant in exon 2 (T89C). Hence, the characteristic of unbiased genomic sequencing can clinically affect patient care and decisionmaking, especially in terms of the consideration of genetic disorders such as leukoencephalopathy in pediatric patients.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Brain
/
Magnetic Resonance Imaging
/
Central Nervous System
/
Exons
/
Coma
/
Eukaryotic Initiation Factor-2B
/
Leukoencephalopathies
/
Exome
/
White Matter
/
Patient Care
Type of study:
Prognostic study
Limits:
Humans
Language:
English
Journal:
Annals of Rehabilitation Medicine
Year:
2019
Type:
Article
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