Dysferlinopathy in Switzerland: clinical phenotypes and potential founder effects
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
BACKGROUND: Dysferlin is reduced in patients with limb girdle muscular dystrophy type 2B, Miyoshi myopathy, distal anterior compartment myopathy, and in certain Ethnic clusters.
METHODS: We evaluated clinical and genetic patient data from three different Swiss Neuromuscular Centers.
RESULTS: Thirteen patients from 6 non-related families were included. Age of onset was 18.8 ± 4.3 years. In all patients, diallelic disease-causing mutations were identified in the DYSF gene. Nine patients from 3 non-related families from Central Switzerland carried the identical homozygous mutation, c.3031 + 2 T>C. A possible founder effect was confirmed by haplotype analysis. Three patients from two different families carried the heterozygous mutation, c.1064_1065delAA. Two novel mutations were identified (c.2869 C>T (p.Gln957Stop), c.5928 G>A (p.Trp1976Stop)).
CONCLUSIONS: Our study confirms the phenotypic heterogeneity associated with DYSF mutations. Two mutations (c.3031 + 2 T>C, c.1064_1065delAA) appear common in Switzerland. Haplotype analysis performed on one case (c. 3031 + 2 T>C) suggested a possible founder effect.
Details
Original language | English |
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Article number | 182 |
Pages (from-to) | 182- |
Journal | BMC Neurology |
Volume | 15 |
Publication status | Published - 6 Oct 2015 |
Peer-reviewed | Yes |
External IDs
Scopus | 84943399079 |
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researchoutputwizard | legacy.publication#66501 |
PubMed | 26444858 |
PubMedCentral | PMC4596355 |
Keywords
Keywords
- Adolescent, Adult, Dysferlin, Female, Founder Effect, Heterozygote, Homozygote, Humans, Male, Membrane Proteins/genetics, Middle Aged, Muscle Proteins/genetics, Muscular Dystrophies, Limb-Girdle/genetics, Mutation, Phenotype, Switzerland, Young Adult