SLC35A2-CDG: novel variants with two ends of the spectrum.
J Pediatr Endocrinol Metab
; 34(9): 1185-1189, 2021 Sep 27.
Article
in En
| MEDLINE
| ID: mdl-34161696
ABSTRACT
OBJECTIVES:
Congenital disorders of glycosylation (CDGs) are rare inherited metabolic disorders associated with facial dysmorphism and in the majority of the patients, there is an important neurological impairment. Epilepsy was a main concern in rare forms of the disease. There are two groups of the disease CDG-I results from the defects in glycan addition to the N-terminal and CDG-II occurs due to defects in the processing of protein bound glycans. SLC35A2-CDG is a rare form of CDG caused by mutations in the X-linked gene that encodes a UDP-Galactose transporter. The manifestations of the disease include seizures, failure to thrive, delayed myelination, and cerebral atrophy. CASE PRESENTATION We describe herein a severe female child with intractable seizures, microcephaly, growth retardation, hypotonia, global developmental delay, facial dysmorphism, skeletal findings, cerebral/cerebellar atrophy, and thin corpus callosum, and a mildly affected male carrying a novel variant with seizures and mild global developmental delay who were found by whole exome sequencing (WES) for SLC35A2 mutations previously not reported.CONCLUSIONS:
Our findings expand the number of reported cases and add novel variants to the repertoire of SLC35A2-CDG.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Seizures
/
Abnormalities, Multiple
/
Monosaccharide Transport Proteins
/
Congenital Disorders of Glycosylation
/
Epilepsy
/
Mutation
Type of study:
Prognostic_studies
Limits:
Child, preschool
/
Female
/
Humans
/
Male
Language:
En
Journal:
J Pediatr Endocrinol Metab
Journal subject:
ENDOCRINOLOGIA
/
PEDIATRIA
Year:
2021
Document type:
Article
Affiliation country: