117 documents found, page 1 of 12
The potential of DNA methylation as a biomarker for age-related macular degener...
Ghannai, Salema; Ribeiro, Edna; Pereira, Bruno; Brito, Miguel; Camacho, PedroAge-related macular degeneration (AMD) is a multifactorial disease influenced by genetic and environmental factors, yet its pathogenesis remains incompletely understood. DNA methylation, increasingly recognized as a disease indicator, has been linked to AMD and may represent a promising biomarker or therapeutic target. This systematic review, conducted according to PRISMA 2020 guidelines, analyzed 13 studies ad...
Sampling protocol to assess Aspergillus section fumigati in woodworking environ...
Dias, Marta; Gomes, Bianca; Pena, Pedro; Cervantes, Renata; Rodriguez, Margarida; Riesenberger, Bruna; Marques, Liliana; Ribeiro, Edna; Viegas, CarlaAzole fungicides are commonly used in sawmills to protect wood against the wood-destroying basidiomycete fungi. Azole-resistant Aspergillus section Fumigati has previously been identified in these environments. Here we aimed to establish a sampling protocol to efficiently isolate Aspergillus section Fumigati in woodworking environments. The sampling campaign was conducted between December 2022 and November 2023...
SARS-CoV-2 immunization in academic community: vaccination schemes efficiency
Almeida, Ana; Oliveira, Ketlyn; Ribeiro, EdnaBackground: Severe acute respiratory syndrome coronavirus 2 immunoglobulin G (SARS-CoV-2-IgG) antibodies have been widely used to assist clinical diagnosis and occupational exposure risks. Objectives: This study aimed to estimate SARS-CoV-2 IgG levels acquired due to different vaccination schemes. Materials and methods: A retrospective study was performed on volunteers from the Instituto Politécnico de Lisboa. ...
Playground contamination by potentially pathogenic bacteria: a systematic review
Reis, Catarina; Antunes, Henrique; Matos, Tomás; Ribeiro, EdnaPlaygrounds are public spaces that offer recreational opportunities for hundreds of people, including children, young people, adults, and the elderly. Numerous pathogenic bacteria have been described in the literature as etiologic agents of several infections, with distinct manifestations and clinical outcomes, particularly affecting children's health. This systematic review aims to perform a scoping review of ...
HBM4EU chromates study: the Portuguese integrated and harmonized study on expos...
Viegas, Susana; Martins, Carla; Ribeiro, Edna; Ladeira, Carina; Pinhal, Hermínia; Nogueira, Ana; Santos, Sílvia; Tavares, Ana; Gomes, Bruno CostaIn the scope of the European Union (EU) human biomonitoring initiative, a multicentric study on different occupational settings from several European countries was performed, to provide information on occupational exposure to hexavalent chromium [Cr(VI)], a known lung carcinogen. Biomonitoring approaches were used to obtain exposure data to support the implementation of new risk management measures and policy a...
DNA methyltransferase expression (DNMT1, DNMT3a, and DNMT3b) as a potential bio...
Camacho, Pedro; Ribeiro, Edna; Pereira, Bruno; Nascimento, João; Rosa, Paulo Caldeira; Henriques, José; Barrão, Sandra; Sadio, Silvia; Quendera, BrunoBackground/Objectives: Age-related macular degeneration (AMD) is a global cause of vision loss, with limited therapeutic options highlighting the need for effective biomarkers. This study aimed to characterize plasma DNA methyltransferase expression (DNMT1, DNMT3A, and DNMT3B) in AMD patients and explore divergent expression patterns across different stages of AMD. Methods: Thirty-eight AMD patients were prospe...
Effects of methanolic and aqueous extracts of Carica papaya leaf on miRNA-media...
Jacques, Filipa; Delgadinho, Mariana; Ginete, Catarina; Gomes, Mário; Ribeiro, Edna; Brito, Miguel; Gomes, Anita Q.Introduction: Hemoglobinopathies are genetic blood disorders characterized by abnormal hemoglobin that disrupts oxygen transport and leads to diverse health complications. Raising fetal hemoglobin (HbF) levels is one possible therapeutic approach. But the current main therapy based on the use of hydroxyurea (HU), faces limitations related to cost and safety, especially in underserved areas. To overcome these co...
DNA Methyltransferase Expression (DNMT1, DNMT3a, and DNMT3b) as a Potential Bio...
Camacho, Pedro; Ribeiro, Edna; Pereira, Bruno; Nascimento, João; Caldeira Rosa, Paulo; Henriques, José; Barrão, Sandra; Sadio, Silvia; Quendera, BrunoAge-related macular degeneration (AMD) is a global cause of vision loss, with limited therapeutic options highlighting the need for effective biomarkers. This study aimed to characterize plasma DNA methyltransferase expression (, , and ) in AMD patients and explore divergent expression patterns across different stages of AMD. : Thirty-eight AMD patients were prospectively enrolled and stratified by disease seve...
A ascensão de genes de resistência a antibióticos em Staphylococcus aureus: rev...
Reguinga , Patrícia; Afonso, Joana; Carmo, Matilde; Ribeiro, Edna; EdnaIntrodução – O Staphylococcus aureus resistente à meticilina (MRSA) tem-se disseminado globalmente, tornando-se endémico em muitos hospitais e comunidades. Além da meticilina, diversas estirpes de S. aureus têm mostrado resistência a uma variedade de outros antibióticos. Esta resistência é conferida por genes cuja presença e expressão são facilitadas por uma alta taxa de recombinação genética e pela capacidade ...
Modulação da expressão de microRNAs em células humanas K562 induzida por extrat...
Edna; Ribeiro, Edna; Canteiro , Beatriz; Ginete , Catarina; Gomes, Mário; Brito, Miguel; Gomes, Anita; Silva, CarinaIntrodução – As hemoglobinopatias constituem um dos grupos de doenças monogénicas mais prevalentes a nível mundial. Atualmente, um dos tratamentos disponíveis consiste na indução farmacológica da hemoglobina fetal (HbF) através de vários compostos químicos, sendo o mais comum a hidroxiureia (HU). Contudo, o seu custo elevado em países subdesenvolvidos e o seu perfil de segurança limitam a utilização deste compo...