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http://dx.doi.org/10.1016/j.gim.2023.100961 | DOI Listing |
J Neurol
September 2024
National Reference Centre for Inherited Sensory Diseases, INM, Montpellier University, Montpellier, France.
Introduction: Ubiquitin C-terminal hydrolase L1 (UCHL1) has been associated with a severe, complex autosomal recessive spastic paraplegia (HSP79) [1] [2] [3] [4]. More recently, UCHL1 loss of function (LoF) variants have been associated to an autosomal dominant disease characterized by late-onset spastic ataxia, neuropathy, and frequent optic atrophy [5].
Methods: Routine clinical care whole-genome (WGS) and exome (ES) sequencing.
J Neurol
June 2024
Department of Clinical Neurosciences, John Van Geest Centre for Brain Repair, School of Clinical Medicine, University of Cambridge, Robinson Way, Cambridge, CB2 0PY, UK.
Background: Peripheral neuropathies in mitochondrial disease are caused by mutations in nuclear genes encoding mitochondrial proteins, or in the mitochondrial genome. Whole exome or genome sequencing enable parallel testing of nuclear and mtDNA genes, and it has significantly advanced the genetic diagnosis of inherited diseases. Despite this, approximately 40% of all Charcot-Marie-Tooth (CMT) cases remain undiagnosed.
View Article and Find Full Text PDFJ Peripher Nerv Syst
March 2024
Centre for Neuromuscular Diseases (CNMD), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK.
Aim: X-linked variants in Filamin A (FLNA) are associated with the Ehlers-Danlos-syndrome-variant form of periventricular heterotopia, and autosomal dominant variants in ubiquitin C-terminal hydrolase L1 (UCHL1) are associated with a late-onset spastic ataxia, peripheral neuropathy and optic atrophy. Here we present a rare case involving both a novel heterozygous whole-gene deletion of UCHL1 and a heterozygous frameshift variant in the FLNA gene resulting in a complex phenotype.
Methods: A 67-year-old female with a confirmed pathogenic variant in the FLNA gene, resulting in an enlarged aorta and joint pains, presented with a 4-year history of severe sensory ataxia, upper motor neuron signs, eye movement abnormalities and severe sensory loss.
Genet Med
October 2023
Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Department of Neurodegenerative Diseases, Center for Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany; German Center for Neurodegenerative Diseases
Parkinsonism Relat Disord
March 2023
Juntendo University School of Medicine, Department of Neurology, Tokyo, Japan.