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Demyelinating neuropathy as the initial presentation of familial E200K Creutzfeldt-Jakob disease in two patients.
Ann Clin Transl Neurol
January 2025
Institut du Cerveau et de la Moelle Épinière, ICM, Sorbonne Université, INSERM, CNRS, Paris, France.
Objective: To describe peripheral neuropathy associated with familial Creutzfeldt-Jakob disease.
Methods: We report two unrelated patients with genetic Creutzfeldt-Jakob disease with demyelinating peripheral neuropathy as initial presentation, with a comprehensive clinical, electrophysiological and neuropathological description.
Results: Both patients exhibited gait disturbance and paresthesia.
[Genetic analysis of a Chinese pedigree affected with Charcot-Marie-Tooth type 2A2A due to a missense variant of MFN2 gene].
Zhonghua Yi Xue Yi Chuan Xue Za Zhi
January 2025
Prenatal Diagnosis Center, Xuzhou Central Hospital, Xuzhou Clinical College of Xuzhou Medical University, Xuzhou, Jiangsu 221009, China.
Objective: To explore the genotype-phenotype correlation in a Charcot-Marie-Tooth type 2A2A (CMT2A2A) pedigree and to provide genetic counseling for its subsequent pregnancies.
Methods: A Chinese pedigree presenting with "lower limb muscle atrophy and movement disorders" at the Prenatal Diagnosis Center of Xuzhou Central Hospital between January and August 2024 was selected as the study subject. Relevant clinical data were collected from the pedigree members.
A Novel Variant in a Charcot-Marie-Tooth Type 2: Insights from Familial Analysis.
Genes (Basel)
November 2024
Neurology Unit, Department of Translational Medicine, Maggiore Della Carità Hospital, University of Piemonte Orientale, 28100 Novara, Italy.
Background/objectives: Axonal Charcot-Marie-Tooth disease type 2 (CMT2) accounts for 24% of Hereditary Motor/Sensory Peripheral Neuropathies. CMT2 type GG, due to four distinct heterozygous mutations in the Golgi brefeldin A resistant guanine nucleotide exchange factor 1 () gene (OMIM 606483), was described in seven cases from four unrelated families with autosomal dominant inheritance. It is characterized by slowly progressive distal muscle weakness and atrophy, primarily affecting the lower limbs.
View Article and Find Full Text PDFCMT2 and distal hereditary motor neuropathy associated with VRK1 variants: Case series.
Neuromuscul Disord
November 2024
Department of Neurology, Yale University School of Medicine, New Haven, CT, USA.
Axonal Charcot-Marie-Tooth disease (CMT2) and distal hereditary motor neuropathy (dHMN) are associated with a heterogeneous group of genes encoding proteins that are involved in axonal transport, control of RNA metabolism, mitochondrial dynamics and DNA repair. VRK1 (vaccinia-related kinase 1) is a serine/threonine kinase which is widely expressed in human tissue and plays a role in RNA maturation and processing and in DNA damage response. Variants of VRK1 have been associated with neurodevelopmental and neuromuscular disorders including pontocerebellar hypoplasia, motor neuron disorders and distal hereditary motor neuropathy.
View Article and Find Full Text PDFCo-occurrence of Charcot-Marie-Tooth disease type 1 and glomerulosclerosis in a patient with a de novo INF2 variant.
BMC Nephrol
November 2024
Department of Nephrology (Key Laboratory of Management of Kidney Disease in Zhejiang Province), Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Tiyuchang Road 453, Hangzhou, 310007, People's Republic of China.
Background: Renal disease is associated with Charcot-Marie-Tooth disease (CMT), a common inherited neurological disorder. Three forms of CMT have been identified: CMT1 of the demyelinating type, CMT2 of the axonal defect type, and intermediate type (Int-CMT). INF2 is an important target for variants that cause the complex symptoms of focal segmental glomerulosclerosis (FSGS) and CMT.
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