Phenotypic and genetic analysis of a case with hypohidrotic ectodermal dysplasia due to Xq13.1 microdeletion / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 219-223, 2021.
Article
Dans Chinois
| WPRIM
| ID: wpr-879557
ABSTRACT
OBJECTIVE@#To investigate the clinical phenotype and genetic characteristics of a patient with hypohidrotic ectodermal dysplasia (HED) due to partial deletion of EDA gene.@*METHODS@#The child has presented with HED complicated with epilepsy. Family trio whole exome sequencing (Trio-WES), copy number variation sequencing (CNV-seq), and karyotype analysis were carried out to explore the underlying genetic etiology.@*RESULTS@#The proband, a 7-year-and-8-month-old boy, presented with thin curly hair, thin and sparse eyebrow, xerosis cutis, susceptibility to hyperthermia from childhood, hypohidrosis, sharp/sparse/absent teeth, saddle nose, prominent forehead, auricle adulation and seizure. He was found to have a normal chromosomal karyotype, and no abnormality was found by Trio-WES. Genome-wide CNV-seq revealed a 341.90 kb deletion at Xq13.1q13.1 (chrX 68 796 566-69 138 468). As verified by PCR-electrophoresis, the deletion has removed part of the EDA gene. The deletion was derived from his mother with normal hair, mild xerosis cutis, and sparse, decidulated and nail-like teeth. The mother was detected with a heterozygous 242.10 kb deletion at Xq13.1q13.1 (chrX 68 836 154-69 078 250).@*CONCLUSION@#Both the proband and his mother have carried a Xq13.1 microdeletion involving part of the EDA gene. The clinical phenotypes of the mother and the proband were consistent with the clinical characteristics of X-linked recessive HED, for which partial deletion of the EDA gene is probably accountable.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Phénotype
/
Dysplasie ectodermique
/
Dysplasie ectodermique anhidrotique de type 1
/
Ectodysplasines
/
Variations de nombre de copies de segment d'ADN
Limites du sujet:
Enfant
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Chinese Journal of Medical Genetics
Année:
2021
Type:
Article
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