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Molecular studies in brazilian patients with muscular dystrophies and craniofacial disorders
Bueno-Passos, Maria Rita.
  • Bueno-Passos, Maria Rita; Universidade de Säo Paulo. Instituto de Biociências. Departamento de Biologia.
Ciênc. cult. (Säo Paulo) ; 51(3/4): 218-25, maio-ago. 1999. ilus, tab
Artículo en Inglés | LILACS | ID: lil-254744
RESUMO
This paper presents some of the results of our studies on two distinct groups of disorders Muscular dystrophies and craniofacial conditions. Among the first, we focused on autosomal recessive (AR) limb-girdle muscular dystrophies (LGMD). To date, there are 8 known loci associated with AR LGMD (LGMD2A, LGMD2B to 2H). We were able to map 2 of these 8 genes through the analysis of large Brazilian families. We also classified 140 patients into one of the seven AR LGMD forms LGMD2B is the mildest and a clear phenotype-genotype correlation was not observed in most of the cases. Molecular studies on craniofacial disorders have been recently initiated, as exemplified in the text with a discussion on craniosynostosis and cleft lip and/or palate (CL/P). The study of Brazilian patients with craniosynostosis caused by mutations in fibrobrast growth receptor genes (FGFR1-3) allowed us to identify some Apert and Pfeiffer patients with unusual mutations. In addition, about 10 percent of Brazilian patients with coronal synostosis seem to be due to a specific mutation within FGFR3. Finally, our molecular studies on CL/P patients excluded two genes (one, a transforming growth factor and the other involved in folate metabolism) as major candidates for this common malformation. Further studies are being conducted in all the disorder presented in this paper.
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Índice: LILACS (Américas) Asunto principal: Anomalías Craneofaciales / Genes Recesivos / Distrofias Musculares Tipo de estudio: Estudio pronóstico Límite: Femenino / Humanos / Masculino País/Región como asunto: America del Sur / Brasil Idioma: Inglés Revista: Ciênc. cult. (Säo Paulo) Asunto de la revista: Ciencia Año: 1999 Tipo del documento: Artículo

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Índice: LILACS (Américas) Asunto principal: Anomalías Craneofaciales / Genes Recesivos / Distrofias Musculares Tipo de estudio: Estudio pronóstico Límite: Femenino / Humanos / Masculino País/Región como asunto: America del Sur / Brasil Idioma: Inglés Revista: Ciênc. cult. (Säo Paulo) Asunto de la revista: Ciencia Año: 1999 Tipo del documento: Artículo