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Sorrentino, U. ; Boesch, S.* ; Doummar, D.* ; Ravelli, C.* ; Serranová, T.* ; Indelicato, E.* ; Winkelmann, J. ; Burglen, L.* ; Jech, R.* ; Zech, M.

CHD8-related disorders redefined: An expanding spectrum of dystonic phenotypes.

J. Neurol. 271, 2859-2865 (2024)
Verlagsversion DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
BACKGROUND: Heterozygous loss-of-function variants in CHD8 have been associated with a syndromic neurodevelopmental-disease spectrum, collectively referred to as CHD8-related neurodevelopmental disorders. Several different clinical manifestations, affecting neurodevelopmental and systemic domains, have been described, presenting with highly variable expressivity. Some expressions are well established and comprise autism spectrum disorders, psychomotor delay with cognitive impairment, postnatal overgrowth with macrocephaly, structural brain abnormalities, gastrointestinal disturbances, and behavioral and sleep-pattern problems. However, the complete phenotypic spectrum of CHD8-related disorders is still undefined. In 2021, our group described two singular female patients with CHD8-related neurodevelopmental disorder and striking dystonic manifestations, prompting the suggestion that dystonia should be considered a possible component of this condition. CASE SERIES PRESENTATION: We describe three additional unrelated female individuals, each carrying a different CHD8 frameshift variant and whose clinical presentations were primarily characterized by young-onset dystonia. Their dystonic manifestations were remarkably heterogeneous and ranged from focal, exercise-dependent, apparently isolated forms to generalized permanent phenotypes accompanied by spasticity and tremor. Neurocognitive impairment and autistic behaviors, typical of CHD8-related disorders, were virtually absent or at the mild end of the spectrum. CONCLUSIONS: This work validates our previous observation that dystonia is part of the phenotypic spectrum of CHD8-related neurodevelopmental disorders with potential female preponderance, raising new challenges and opportunities in the diagnosis and management of this condition. It also highlights the importance of in-depth neurologic phenotyping of patients carrying variants associated with neurodevelopmental disorders, as the connection between neurodevelopmental and movement disorders is proving closer than previously appreciated.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Chd8 ; Chd8-ndd ; Autism ; Dystonia ; Exome Sequencing ; Movement Disorders; Chd8
Sprache englisch
Veröffentlichungsjahr 2024
HGF-Berichtsjahr 2024
ISSN (print) / ISBN 0340-5354
e-ISSN 1432-1459
Zeitschrift Journal of Neurology
Quellenangaben Band: 271, Heft: 5, Seiten: 2859-2865 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort Tiergartenstrasse 17, D-69121 Heidelberg, Germany
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Neurogenomics (ING)
POF Topic(s) 30205 - Bioengineering and Digital Health
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-503200-001
Förderungen European Joint Programme on Rare Diseases (EJP-RD Joint Transnational Call 2022)
German Federal Ministry of Education and Research (BMBF, Bonn, Germany)
Federal Ministry of Education and Research (BMBF)
Free State of Bavaria under the Excellence Strategy of the Federal Government
Lander
Technical University of Munich-Institute for Advanced Study
Else Kroener-Fresenius-Stiftung
National Institute for Neurological Research, Czech Republic, Programme EXCELES - European Union-Next Generation EU
European Reference Network for Rare Neurological Diseases
Charles University: Cooperation Program in Neuroscience
Projekt DEAL
European Joint Programme on Rare Diseases

German Research Foundation
DOI 10.1007/s00415-024-12271-x
WOS ID 001176379100005
Scopus ID 85186555846
PubMed ID 38441608
Erfassungsdatum 2024-05-03
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