Published in:
Open Access
01-12-2020 | Spastic Paraplegia | Original Communication
Behr syndrome and hypertrophic cardiomyopathy in a family with a novel UCHL1 deletion
Authors:
Grace McMacken, Hanns Lochmüller, Boglarka Bansagi, Angela Pyle, Angela Lochmüller, Patrick F. Chinnery, Steve Laurie, Sergi Beltran, Leslie Matalonga, Rita Horvath
Published in:
Journal of Neurology
|
Issue 12/2020
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Abstract
Background
Behr syndrome is a clinically distinct, but genetically heterogeneous disorder characterized by optic atrophy, progressive spastic paraparesis, and motor neuropathy often associated with ataxia. The molecular diagnosis is based on gene panel testing or whole-exome/genome sequencing.
Methods
Here, we report the clinical presentation of two siblings with a novel genetic form of Behr syndrome. We performed whole-exome sequencing in the two patients and their mother.
Results
Both patients had a childhood-onset, slowly progressive disease resembling Behr syndrome, starting with visual impairment, followed by progressive spasticity, weakness, and atrophy of the lower legs and ataxia. They also developed scoliosis, leading to respiratory problems. In their late 30’s, both siblings developed a hypertrophic cardiomyopathy and died of sudden cardiac death at age 43 and 40, respectively. Whole-exome sequencing identified the novel homozygous c.627_629del; p.(Gly210del) deletion in UCHL1.
Conclusions
The presentation of our patients raises the possibility that hypertrophic cardiomyopathy may be an additional feature of the clinical syndrome associated with UCHL1 mutations, and highlights the importance of cardiac follow-up and treatment in neurodegenerative disease associated with UCHL1 mutations.