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Master's Dissertation
DOI
https://doi.org/10.11606/D.17.2017.tde-15022012-104129
Document
Author
Full name
Fulviana Silva Nishiyama
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2011
Supervisor
Committee
Marques Júnior, Wilson (President)
Kouyoumdjian, Joao Aris
Sobreira, Claudia Ferreira da Rosa
Title in Portuguese
Frequência mutacional do gene GJB1 (Cx32) na população brasileira da doença de Charcot-Marie-Tooth
Keywords in Portuguese
Cx32
Doença de Charcot-Marie-Tooth
Sequenciamento
Abstract in Portuguese
A doença de Charcot-Marie-Tooth (CMT) é desordem hereditária do sistema nervoso periférico, caracterizada por fraqueza dos membros inferiores, atrofia muscular e perda sensitiva. CMTX é doença ligada ao cromossomo X a qual corresponde aproximadamente 10% das famílias com CMT, sendo a segunda causa mais frequente da doença, após a duplicação 17p11.2-p12. Neste estudo analisamos 66 pacientes com CMT, negativos para duplicação 17p, por método de DHPLC, confirmado por sequenciamento direto. Foram identificadas seis mutações, em que quatro destas não foram descritas. Desta maneira confirmou uma frequência de mutações em torno de 9% no gene da Cx32. Portanto, nesta pesquisa do gene da Cx32 com CMT demonstrou que em uma população brasileira teve um comportamento mutacional semelhante ao das demais populações estudadas.
Title in English
Mutational frequency of the gene GJB1 (Cx32) in the Brazilian population of Charcot-Marie-Tooth disease
Keywords in English
Charcot-Marie-Tooth
Cx32
Sequencing
Abstract in English
The Charcot-Marie-Tooth (CMT) is inherited disorder of the peripheral nervous system characterized by weakness of the lower limbs, muscular atrophy and sensory loss. CMTX is X-linked disease which accounts for approximately 10% of families with CMT, the second most frequent cause of disease after duplication 17p11.2-p12. This study analyzed 66 patients with CMT, negative for duplication 17p, by method of DHPLC, confirmed by direct sequencing. We identified six mutations, four of which were not described. In this way confirmed a mutation frequency of around 9% in the Cx32 gene. Therefore, this research Cx32 gene with CMT showed that in a Brazilian population had a mutational behavior similar to that of other populations studied.
 
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Publishing Date
2017-04-07
 
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