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Title: Novel ancestral Dysferlin splicing mutation which migrated from the Iberian peninsula to South America
Author: Vernengo, Luis
Oliveira, Jorge
Krahn, Martin
Vieira, Emília
Santos, Rosário
Carrasco, Luisa
Negrão, Luis
Panuncio, Ana
Leturcq, France
Labelle, Veronique
Bronze-da-Rocha, Elsa
Mesa, Rosário
Pizzarossa, Carlos
Lévy, Nicolas
Rodriguez, Maria-Mirta
Keywords: Primary Dysferlinopathies
Miyoshi Myopathy
Founder Mutation
Doenças Genéticas
Issue Date: May-2011
Publisher: Elsevier
Citation: Neuromuscul Disord. 2011 May;21(5):328-37. Epub 2011 Mar 9
Abstract: Primary dysferlinopathies are a group of recessive heterogeneous muscular dystrophies. The most common clinical presentations are Miyoshi myopathy and LGMD2B. Additional presentations range from isolated hyperCKemia to severe functional disability. Symptomatology begins in the posterior muscle compartment of the calf and its clinical course progresses slowly in Miyoshi myopathy whereas LGMD2B involves predominantly the proximal muscles of the lower limbs. The age of onset ranges from 13 to 60 years in Caucasians. We present five patients that carry a novel mutation in the exon12/intron12 boundary: c.1180_1180 + 7delAGTGCGTG (r.1054_1284del). We provide evidence of a founder effect due to a common ancestral origin of this mutation, detected in heterozygosity in four patients and in homozygosity in one patient.
Peer review: yes
ISSN: 0960-8966
Publisher Version:
Appears in Collections:DGH - Artigos em revistas internacionais

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