67 documents found, page 1 of 7
Tratamento de doenças lisossomais de sobrecarga: relatório 2022
Oliveira, Anabela; Ribeiro, Cristina; Teles, Elisa Leão; Martins, Esmeralda; Cardoso, Sónia; Costa, Inês; Azevedo, Olga; Alves, SandraRelatório anual sobre o Tratamento de Doenças Lisossomais de Sobrecarga, referente às atividades realizadas pela respetiva Comissão Coordenadora em 2022. As Doenças Lisossomais de Sobrecarga (DLS) são um grupo de patologias raras e progressivas, caracterizadas por alta morbilidade e que atualmente incluem mais de 60 doenças. A apresentação clínica dessas patologias é extremamente variável, podendo variar de doe...
Doenças mitocondriais na era da sequenciação de nova geração: estudo de 450 doe...
Nogueira, Célia; Pereira, Cristina; Silva, Lisbeth; Laranjeira, Mateus; Lopes, Altina; Neiva, Raquel; Rodrigues, Esmeralda; Campos, TeresaAs doenças mitocondriais (DM) são doenças raras, clínica e geneticamente heterogéneas, de difícil diagnóstico, para as quais não existe uma terapia eficaz. O desenvolvimento da tecnologia de sequenciação de nova geração (NGS) revolucionou o diagnóstico molecular deste grupo de doenças, permitindo a identificação de novos genes associados a estas patologias. Nesta nova era genética, através da utilização da tecn...
Tratamento de doenças lisossomais de sobrecarga: relatório 2021
Oliveira, Anabela; Ribeiro, Cristina; Teles, Elisa Leão; Martins, Esmeralda; Carvalho, Susana; Cardoso, Sónia; Macedo, Beatriz; Costa, InêsRelatório anual sobre o Tratamento de doenças lisossomais de sobrecarga, referente às atividades desenvolvidas pela respetiva Comissão Coordenadora em 2021. As Doenças Lisossomais de Sobrecarga (DLS) constituem um grupo de patologias raras, progressivas, com elevada morbilidade, que engloba, atualmente, mais de 60 patologias, cuja apresentação clínica é extremamente variável, podendo ir desde doença neurológica...
Leigh Syndrome Spectrum: A Portuguese Population Cohort in an Evolutionary Gene...
Baldo, Manuela Schubert; Nogueira, Célia; Pereira, Cristina; Janeiro, Patrícia; Ferreira, Sara; Lourenço, Charles M.; Bandeira, AnabelaMitochondrial diseases are the most common inherited inborn error of metabolism resulting in deficient ATP generation, due to failure in homeostasis and proper bioenergetics. The most frequent mitochondrial disease manifestation in children is Leigh syndrome (LS), encompassing clinical, neuroradiological, biochemical, and molecular features. It typically affects infants but occurs anytime in life. Considering r...
Leukocyte Imbalances in Mucopolysaccharidoses Patients
Lopes, Nuno; Maia, Maria L.; Pereira, Cátia S.; Mondragão-Rodrigues, Inês; Martins, Esmeralda; Ribeiro, Rosa; Gaspar, Ana; Aguiar, PatrícioMucopolysaccharidoses (MPSs) are rare inherited lysosomal storage diseases (LSDs) caused by deficient activity in one of the enzymes responsible for glycosaminoglycans lysosomal degradation. MPS II is caused by pathogenic mutations in the IDS gene, leading to deficient activity of the enzyme iduronate-2-sulfatase, which causes dermatan and heparan sulfate storage in the lysosomes. In MPS VI, there is dermatan s...
Exosomal microRNAs as possible biomarkers for a rare disease affecting lipids
Encarnação, Marisa; David, Hugo; Ribeiro, Isaura; Vieira, Luís; Carneiro Silva, Catarina; Martins, Esmeralda; Cardoso, Maria TeresaExosomes mediate the communication between cells and the characterization of their content can provide important insights into health and disease. Their cargo includes proteins, lipids and nucleic acids (including microRNAs (miRNAs)). miRNAs regulate many cellular processes, including metabolism. (...)
Congenital disorders of glycosylation
Mendes, Ana Raquel; Quelhas, Dulce; Correia, Joana; Paiva Coelho, Margarida; Bandeira, Anabela; Martins, EsmeraldaCongenital disorders of glycosylation are a highly variable, rapidly expanding family of genetic diseases that result from defects in the synthesis of glycans. The vast majority of these monogenic diseases are inherited in an autosomal recessive way, but some types follow an autosomal dominant or X-linked inheritance. The present work aimed to review the state of the art of congenital disorders of glycosylation...
Congenital disorders of glycosylation
Mendes, Ana Raquel; Quelhas, D; Correia, Joana; Paiva Coelho, Margarida; Bandeira, Anabela; Martins, EsmeraldaCongenital disorders of glycosylation are a highly variable, rapidly expanding family of genetic diseases that result from defects in the synthesis of glycans. The vast majority of these monogenic diseases are inherited in an autosomal recessive way, but some types follow an autosomal dominant or X-linked inheritance. The present work aimed to review the state of the art of congenital disorders of glycosylation...
Continuous use of glycomacropeptide in the nutritional management of patients w...
Pena, Maria João; Pinto, Alex; de Almeida, Manuela Ferreira; de Sousa Barbosa, Catarina; Ramos, Paula Cristina; Rocha, Sara; Guimas, ArlindoBackground: In phenylketonuria (PKU), modified casein glycomacropeptide supplements (CGMP-AA) are used as an alternative to the traditional phenylalanine (Phe)-free L-amino acid supplements (L-AA). However, studies focusing on the long-term nutritional status of CGMP-AA are lacking. This retrospective study evaluated the long-term impact of CGMP-AA over a mean of 29 months in 11 patients with a mean age at CGMP...
Utility of Gene Panels for the Diagnosis of Inborn Errors of Metabolism in a Me...
Barbosa-Gouveia, Sofia; Vázquez-Mosquera, María E.; González-Vioque, Emiliano; Álvarez, José V.; Chans, Roi; Laranjeira, Francisco; Martins, EsmeraldaNext-generation sequencing (NGS) technologies have been proposed as a first-line test for the diagnosis of inborn errors of metabolism (IEM), a group of genetically heterogeneous disorders with overlapping or nonspecific phenotypes. Over a 3-year period, we prospectively analyzed 311 pediatric patients with a suspected IEM using four targeted gene panels. The rate of positive diagnosis was 61.86% for intermedia...