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- A genetic linkage study in Brazil identifies a new locus for persistent developmental stuttering on chromosome 10
- Universidade Estadual Paulista (UNESP)
- Universidade de São Paulo (USP)
- National Institute on Deafness and Other Communication Disorders/National Institutes of Health Intramural
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- National Institute on Deafness and Other Communication Disorders/National Institutes of Health IntramuralZ01-000046-12
- Although twin, adoption, and family studies demonstrate that genetic factors are involved in the origins of stuttering, the mode of transmission of the disorder in families is not well defined and stuttering is considered a genetically complex trait. We performed a genome-wide linkage scan in a group of 43 Brazilian families, each containing multiple cases of persistent developmental stuttering. Linkage analysis under a dominant model of inheritance generated significant evidence of linkage in two Brazilian families, with a combined maximum single-point LOD score of 4.02 and a multipoint LOD score of 4.28 on chromosome 10q21. This demonstrated the presence of a novel variant gene at this locus that predisposes individuals to stuttering, which provides an opportunity to identify novel genetic mechanisms that underlie this disorder.
- Genetics And Molecular Research. Ribeirao Preto: Funpec-editora, v. 13, n. 1, p. 2094-2101, 2014.
- Chromosome 10q
- Acesso aberto
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