Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2016 May 10;86(19):1794-800.
doi: 10.1212/WNL.0000000000002585. Epub 2016 Mar 30.

Delineation of the movement disorders associated with FOXG1 mutations

Affiliations

Delineation of the movement disorders associated with FOXG1 mutations

Apostolos Papandreou et al. Neurology. .

Abstract

Objective: The primary objective of this research was to characterize the movement disorders associated with FOXG1 mutations.

Methods: We identified patients with FOXG1 mutations who were referred to either a tertiary movement disorder clinic or tertiary epilepsy service and retrospectively reviewed medical records, clinical investigations, neuroimaging, and available video footage. We administered a telephone-based questionnaire regarding the functional impact of the movement disorders and perceived efficacy of treatment to the caregivers of one cohort of participants.

Results: We identified 28 patients with FOXG1 mutations, of whom 6 had previously unreported mutations. A wide variety of movement disorders were identified, with dystonia, choreoathetosis, and orolingual/facial dyskinesias most commonly present. Ninety-three percent of patients had a mixed movement disorder phenotype. In contrast to the phenotype classically described with FOXG1 mutations, 4 patients with missense mutations had a milder phenotype, with independent ambulation, spoken language, and normocephaly. Hyperkinetic involuntary movements were a major clinical feature in these patients. Of the symptomatic treatments targeted to control abnormal involuntary movements, most did not emerge as clearly beneficial, although 4 patients had a caregiver-reported response to levodopa.

Conclusions: Abnormal involuntary movements are a major feature of FOXG1 mutations. Our study delineates the spectrum of movement disorders and confirms an expanding clinical phenotype. Symptomatic treatment may be considered for severe or disabling cases, although further research regarding potential treatment strategies is necessary.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Ariani F, Hayek G, Rondinella D, et al. FOXG1 is responsible for the congenital variant of Rett syndrome. Am J Hum Genet 2008;83:89–93. - PMC - PubMed
    1. Florian C, Bahi-Buisson N, Bienvenu T. FOXG1-related disorders: from clinical description to molecular genetics. Mol Syndromol 2012;2:153–163. - PMC - PubMed
    1. Dastidar SG, Landrieu PM, D'Mello SR. FoxG1 promotes the survival of postmitotic neurons. J Neurosci 2011;31:402–413. - PMC - PubMed
    1. Philippe C, Amsallem D, Francannet C, et al. Phenotypic variability in Rett syndrome associated with FOXG1 mutations in females. J Med Genet 2010;47:59–65. - PubMed
    1. Mencarelli MA, Spanhol-Rosseto A, Artuso R, et al. Novel FOXG1 mutations associated with the congenital variant of Rett syndrome. J Med Genet 2010;47:49–53. - PubMed

Publication types

Substances