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. 2017 May 23;3(3):e158.
doi: 10.1212/NXG.0000000000000158. eCollection 2017 Jun.

Previously unrecognized behavioral phenotype in Gaucher disease type 3

Magy Abdelwahab  1 , Michael Potegal  1 , Elsa G Shapiro  1 , Igor Nestrasil  1
Affiliations

Previously unrecognized behavioral phenotype in Gaucher disease type 3

Magy Abdelwahab et al. Neurol Genet. .

Abstract

Objective: To provide a comprehensive description of abnormal behaviors in patients with Gaucher disease type 3 (GD3) and relate these behaviors to demographic, neurodevelopmental, and neurologic characteristics.

Methods: Thirty-four Egyptian patients with GD3 (mean age of 7.9 years) were enrolled in the study. They were selected based on parent report and/or physician observation of one or more abnormal behaviors documented in 2 settings and by 2 different individuals and/or by video recording. Behaviors were grouped into 4 categories: Crying/Withdrawal, Impatience/Overactivity, Anger/Aggression, and Repetitive Acts. Baseline and follow-up 6-12 monthly neurologic evaluations included IQ assessment and an EEG. All patients were receiving enzyme replacement therapy (30-60 IU/kg every 2 weeks) and were followed for periods of 3-10 years.

Results: Supranuclear palsy of horizontal gaze, and of both horizontal and vertical gaze, bulbar symptoms, seizures, convergent strabismus, abnormal gait, and neck retroflexion were present in 97.1%, 50%, 55.9%, 29.4%, 29.4%, 20.6%, and 4.4% of patients, respectively. The most abnormal behavioral features were excessive anger (88.2%) and aggression (64.7%), and both were significantly higher in males. Anger/Aggression scores were highly correlated with IQ but not with either EEG/Seizure status or neurologic signs.

Conclusions: We describe behavioral problems with a unique pattern of excessive anger and aggression in patients with GD3. Defining these components using quantitative behavioral scoring methods holds promise to provide a marker of neurologic disease progression and severity.

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Figures

Figure
Figure. Age trends for all 4 abnormal behavior categories
(A) Males. (B) Females.
See this image and copyright information in PMC

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