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Connectome analysis in an individual with SETD1B-related neurodevelopmental disorder and epilepsy.
J. Dev. Behav. Pediatr. 43, E419-E422 (2022)
OBJECTIVE: Causative variants in SETD1B, encoding a lysine-specific methyltransferase, have recently been associated with a neurodevelopmental phenotype encompassing intellectual disability, autistic features, pronounced language delay, and epilepsy. It has been noted that long-term and deep phenotype data are needed to further delineate this rare condition. METHODS: In this study, we provide an in-depth clinical characterization with long-term follow-up and trio exome sequencing findings to describe one additional individual affected by SETD1B-related disorder. The diagnostic workup was complemented by a functional magnetic resonance imaging (fMRI) study. RESULTS: We report a 24-year-old male individual with an early-onset neurodevelopmental disorder with epilepsy due to the de novo missense variant c.5699A>G, p.(Tyr1900Cys) in SETD1B (NM_015048.1). He exhibited delayed speech development, autism spectrum disorder, and early-onset epilepsy with absence and generalized tonic-clonic seizures. Despite profoundly impaired communication skills, ongoing improvements regarding language production have been noted in adulthood. fMRI findings demonstrate abnormal language activation and resting-state connectivity structure. CONCLUSION: Our report expands the previously delineated phenotype of SETD1B-related disorder and provides novel insights into underlying disease mechanisms.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Connectome ; Epilepsy ; Exome Sequencing ; Fmri ; Setd1b
Quellenangaben
Volume: 43,
Issue: 6,
Pages: E419-E422
Publisher
Wolters Kluwer Health
Reviewing status
Peer reviewed
Institute(s)
Institiute of Neurogenomics (ING)