Browsing by Author "Dupont, Juliette"
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- Diagnóstico das Doenças Mitocondriais por Sequenciação de Nova GeraçãoPublication . Nogueira, Célia; Pereira, Cristina; Silva, Lisbeth; Rodrigues, Esmeralda; Janeiro, Patricia; Sequeira, Sílvia; Santos, Helena; Martins, Esmeralda; Vilarinho, Laura; Vieira, Luis; Leão Teles, Elisa; Campos, Teresa; Costa, Cláudia; Gaspar, Ana; Dupont, Juliette; Soares, Gabriela; Bandeira, Anabela; Magalhães, Marina; Vieira, José PedroIntrodução e objetivos: As doenças mitocondriais constituem um importante grupo de doenças metabólicas de expressão clínica heterogénea, para as quais não existe uma terapia eficaz. Estas patologias podem ser causadas por defeitos genéticos quer no genoma mitocondrial, quer no nuclear. A sequenciação de nova geração (NGS) revolucionou o diagnóstico molecular destas doenças, uma vez que tem capacidade de gerar uma enorme quantidade de dados num curto espaço de tempo a um custo acessível. O objetivo deste estudo [Financiado pela FCT (PTDC/DTP-PIC/2220/2014) e pelo Norte 2020 (NORTE-01-0246-FEDER-000014)] é desenvolver uma estratégia de NGS para permitir o diagnóstico genético de doentes suspeitos de doenças mitocondriais.
- Koolen-de Vries syndrome – National Case Series with clinical and molecular characterizationPublication . Soares, Marta P.; Rodrigues, Márcia; Dupont, Juliette; Medeira, Ana; Freixo, João; Nunes, Sofia; Cordeiro, Isabel; Travessa, André; Soares, Gabriela; Fortuna, Ana; Ramos, Fabiana; Sá, Joaquim; Rocha, Susana; Figueiredo, Cristina; Mendonça, Carla; Tapadinhas, Fernando; Silveira-Santos, Rosário; Custódio, Sónia; Barreta, Ana; Serafim, Sílvia; Correia, Hildeberto; Val, Mariana; Carreira, Isabel M.; Rendeiro, Paula; Sousa, Ana; Sousa, Ana BertaIntroduction: Koolen-de Vries Syndrome (KdVS) is a rare genetic condition, caused by a 17q21.31 microdeletion, or a pathogenic variant in KANSL1 gene. The clinical picture includes developmental delay (DD)/intellectual disability (ID) with expressive language particularly impaired, dysmorphisms, neonatal hypotonia, and friendly behaviour. Aim: To characterize at the molecular and clinical levels all patients in Portugal diagnosed with KdVS.
- Mitochondrial disorders: insights into diagnosis and management in the new era of genomic medicinePublication . Nogueira, Célia; Vilarinho, Laura; Pereira, Cristina; Silva, Lisbeth; Vieira, Luís; Leão Teles, Elisa; Rodrigues, Esmeralda; Campos, Teresa; Janeiro, Patricia; Costa, Cláudia; Gaspar, Ana; Dupont, Juliette; Soares, Gabriela; Bandeira, Anabela; Martins, Esmeralda; Magalhães, Marina; Santos, HelenaObjectives: The overall aim of our research project was to develop a Next Generation Sequencing strategy to identify nuclear disease causing-mutations in patients suspicious of mitochondrial disorders but without molecular etiology.
- Targeted next generation sequencing identifies novel pathogenic variants and provides molecular diagnoses in a cohort of pediatric and adult patients with unexplained mitochondrial dysfunctionPublication . Nogueira, Célia; Silva, Lisbeth; Pereira, Cristina; Vieira, Luís; Leão Teles, Elisa; Rodrigues, Esmeralda; Campos, Teresa; Janeiro, Patrícia; Gaspar, Ana; Dupont, Juliette; Bandeira, Anabela; Martins, Esmeralda; Magalhães, Marina; Sequeira, Sílvia; Vieira, José Pedro; Santos, Helena; Vilarinho, Sílvia; Vilarinho, LauraMitochondrial diseases (MD) are a group of rare inherited disorders, characterized by phenotypic heterogeneity, with hitherto no effective therapeutic options. The aim of this study was to develop a next generation sequencing (NGS) strategy, by using a custom gene panel and whole mitochondrial genome, to identify the disease causing pathogenic variants in 146 patients suspicious of MD. The molecular analysis of this cohort revealed six novel and 15 described pathogenic variants, as well as 26 variants of unknown significance. Our findings are expanding the mutational landscape of these disorders and support the use of a NGS strategy for a higher diagnostic yield.