Genetic and phenotypic findings in 34 novel Spanish patients with DDX3X neurodevelopmental disorder.
Clin Genet
; 105(2): 140-149, 2024 02.
Article
em En
| MEDLINE
| ID: mdl-37904618
ABSTRACT
DDX3X is a multifunctional ATP-dependent RNA helicase involved in several processes of RNA metabolism and in other biological pathways such as cell cycle control, innate immunity, apoptosis and tumorigenesis. Variants in DDX3X have been associated with a developmental disorder named intellectual developmental disorder, X-linked syndromic, Snijders Blok type (MRXSSB, MIM #300958) or DDX3X neurodevelopmental disorder (DDX3X-NDD). DDX3X-NDD is mainly characterized by intellectual disability, brain abnormalities, hypotonia and behavioral problems. Other common findings include gastrointestinal abnormalities, abnormal gait, speech delay and microcephaly. DDX3X-NDD is predominantly found in females who carry de novo variants in DDX3X. However, hemizygous pathogenic DDX3X variants have been also found in males who inherited their variants from unaffected mothers. To date, more than 200 patients have been reported in the literature. Here, we describe 34 new patients with a variant in DDX3X and reviewed 200 additional patients previously reported in the literature. This article describes 34 additional patients to those already reported, contributing with 25 novel variants and a deep phenotypic characterization. A clinical review of our cohort of DDX3X-NDD patients is performed comparing them to those previously published.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Encefalopatias
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Transtornos do Neurodesenvolvimento
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Deficiência Intelectual
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Malformações do Sistema Nervoso
Limite:
Female
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Humans
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Male
Idioma:
En
Revista:
Clin Genet
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Espanha