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Novel mutation in the mitochondrial transfer RNACys gene in a child
Almeida, L.S.; Martins, E.; Santorelli, F.M.; Vilarinho, L.Mitochondrial DNA (mtDNA) disorders are an important group of genetic diseases presenting with a multifacet array of clinical manifestations. Highly energy-dependent tissues such as central nervous system and skeletal and cardiac muscles are commonly involved either as multisystem or as isolated organ disease. Characteristic symptoms include epilepsy, myopathy, deafness and ophthalmoplegia, all associated with ...
"Double trouble” or digenic disorder in Complex I deficiency
Almeida, L.S.; Ferreira, M.; Nogueira, C.; Furtado, F.; Evangelista, T.; Santorelli, F.M.; Vilarinho, L.Complex I (CI) deficiency is a defect of OXPHOS caused by mutations in the mitochondrial or nuclear genomes. To date disease-causing mutations have been reported in all mitochondrial-encoded subunits and 22 nuclear genes. In about 50% of the patients no mutations are found, suggesting that undiscovered factors are an important cause of disease. In this study we report a consanguineous family from Southern Portu...
Molecular investigation of pediatric portuguese patients with sensorineural hea...
Nogueira, C.; Coutinho, M.; Pereira, C.; Tessa, A.; Santorelli, F.M.; Vilarinho, L.The understanding of the molecular genetics in sensorineural hearing loss (SNHL) has advanced rapidly during the last decade, but the molecular etiology of hearing impairment in the Portuguese population has not been investigated thoroughly. To provide appropriate genetic testing and counseling to families, we analyzed the whole mitochondrial genome in 95 unrelated children with SNHL (53 nonsyndromic and 42 syn...
Identification of a new mtDNA mutation (14724G>A) associated with mitochondrial...
PEREIRA, C.; NOGUEIRA, C.; BARBOT, C.; TESSA, A.; SOARES, C.; FATTORI, F.; GUIMARÃES, A.; SANTORELLI, F.M.; VILARINHO, L.Biochem Biophys Res Commun. 2007 Mar 23;354(4):937-41. Epub 2007 Jan 23. Identification of a new mtDNA mutation (14724G>A) associated with mitochondrial leukoencephalopathy. Pereira C, Nogueira C, Barbot C, Tessa A, Soares C, Fattori F, Guimarães A, Santorelli FM, Vilarinho L. Instituto de Genética Médica Jacinto de Magalhães, Praça Pedro Nunes, 88, 4099-028 Porto, Portugal. Abstract We report a novel 14724G...
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