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EnglishObjectives: CMT is a group of heterogeneous motor and sensory neuropathies divided into demyelinating (CMT1) and axonal forms (CMT2). Distal Hereditary Motor Neuropathy (dHMN) is a motor neuropathy/neuronopathy which resembles CMT. Final genetic diagnosis is poor in CMT2 and in dHMN when compared with CMT1. Our aim is to report clinical, neurophysiological and genetic findings in a cohort of patients with axonal inherited neuropathies.Patients and methods: We report clinical, neurophysiological and genetic findings from 45 patients with CMT2 or dHMN, coming from 39 unrelated families, observed in our Institute of Neurology over a 20-year period.Results: Clinical and electrophysiological examinations showed that 38 patients had CMT2 and 7 patients presented dHMN. Extensive genetic evaluation showed 6 mutations in MFN2, 4 mutations in HSPB1, 2 mutations in BSCL2, 3 mutations in GJB1, 1 mutation in MPZ.Conclusion: Since next-generation sequencing will not be easily accessible, epidemiological data and clinical “phenotyping” remain the best strategy for clinicians to reach a correct genetic diagnosis in CMT2 and dHMN patients.
| Titolo: | Charcot-Marie-Tooth type 2 and distal hereditary motor neuropathy: Clinical, neurophysiological and genetic findings from a single-centre experience |
| Autori: | |
| Data di pubblicazione: | 2016 |
| Rivista: | |
| Abstract: | Objectives: CMT is a group of heterogeneous motor and sensory neuropathies divided into demyelinating (CMT1) and axonal forms (CMT2). Distal Hereditary Motor Neuropathy (dHMN) is a motor neuropathy/neuronopathy which resembles CMT. Final genetic diagnosis is poor in CMT2 and in dHMN when compared with CMT1. Our aim is to report clinical, neurophysiological and genetic findings in a cohort of patients with axonal inherited neuropathies.Patients and methods: We report clinical, neurophysiological and genetic findings from 45 patients with CMT2 or dHMN, coming from 39 unrelated families, observed in our Institute of Neurology over a 20-year period.Results: Clinical and electrophysiological examinations showed that 38 patients had CMT2 and 7 patients presented dHMN. Extensive genetic evaluation showed 6 mutations in MFN2, 4 mutations in HSPB1, 2 mutations in BSCL2, 3 mutations in GJB1, 1 mutation in MPZ.Conclusion: Since next-generation sequencing will not be easily accessible, epidemiological data and clinical “phenotyping” remain the best strategy for clinicians to reach a correct genetic diagnosis in CMT2 and dHMN patients. |
| Handle: | http://hdl.handle.net/11562/937955 |
| Appare nelle tipologie: | 01.01 Articolo in Rivista |
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