26 documents found, page 1 of 3
Differential tissue immune stimulation through immersion in bacterial and viral...
Sousa, Carmen; Peng, Maoxiao; Guerreiro, Pedro; Cardoso, João; Chen, Liangbiao; Canario, Adelino; Power, DeborahThe genome evolution of Antarctic notothenioids has been modulated by their extreme environment over millennia and more recently by human -caused constraints such as overfishing and climate change. Here we investigated the characteristics of the immune system in Notothenia rossii and how it responds to 8 h immersion in viral (Poly I:C, polyinosinic: polycytidylic acid) and bacterial (LPS, lipopolysaccharide) pr...
Evaluating the repetitive mucus extraction effects on mucus biomarkers, mucous ...
Sanahuja, Ignasi; Guerreiro, Pedro; Girons, Albert; Fernandez-Alacid, Laura; Ibarz, AntoniAmong all the mucosal barriers, the skin and its surrounding mucus are possibly the main defensive tool against changes in the environment that can be harmful for fish. Due to the extraction of this mucus being less invasive, the study of its production and functions has attracted great interest in recent years. However, there are still many gaps concerning the sampling process as well as the possible alteratio...
Assessment of male reproductive traits in endangered leuciscids from the Iberia...
Hernandez, Ana; Sousa-Santos, Carla; Gil, Fátima; Cabrita, Elsa; Guerreiro, Pedro; Gallego, VictorDuring the spring of 2022, several endangered leuciscid species (Anaecypris hispanica, Squalius aradensis, Anachondrostoma Occidentale, and Iberochondrostoma lusitanicum) were sampled both at the Vasco da Gama aquarium facilities and in some rivers of the Algarve region, Portugal. Sperm samples were extracted by gentle abdominal pressure and sperm motion parameters were assessed for the first time in four speci...
Toll-like receptor evolution: does temperature matter?
Sousa, Carmen; Fernandes, Stefan A.; Cardoso, João; Wang, Ying; Zhai, Wanying; Guerreiro, Pedro; Chen, Liangbiao; Canario, A.V.M.; Power, DeborahToll-like receptors (TLRs) recognize conserved pathogen-associated molecular patterns (PAMPs) and are an ancient and well-conserved group of pattern recognition receptors (PRRs). The isolation of the Antarctic continent and its unique teleost fish and microbiota prompted the present investigation into Tlr evolution. Gene homologues of tlr members in teleosts from temperate regions were present in the genome of ...
Atividade física e envelhecimento: guia para uma prática segura e regular em casa
Pais, Sandra; Guerreiro, Pedro; Santos, Joana; Guerreiro, Carla; Botelho, MartaA prática regular de atividade física está associada a um decréscimo da morbilidade e mortalidade, assim como, ao contrário, a inatividade física faz parte dos principais fatores de risco de mortalidade a nível global.
Freshening effect on the osmotic response of the Antarctic spiny plunderfish Ha...
Vargas-Chacoff, Luis; Dann, Francisco; Paschke, Kurt; Oyarzun-Salazar, Ricardo; Nualart, Daniela; Martinez, Danixa; Wilson, Jonathan M.Global warming is having a significant impact around the world, modifying environmental conditions in many areas, including in zones that have been thermally stable for thousands of years, such as Antarctica. Stenothermal sedentary intertidal fish species may suffer due to warming, notably if this causes water freshening from increased freshwater inputs. Acute decreases in salinity, from 33 down to 5, were used...
Guia para prevenção do risco de queda. Previna uma queda antes que ela aconteça!
Pais, Sandra; Guerreiro, Carla; Guerreiro, Pedro; Botelho, MartaO envelhecimento é um processo natural, no qual a diminuição da força muscular, alterações no equilíbrio e limitações na mobilidade, podem colocar a pessoa em risco de cair e sofrer uma lesão. As quedas geralmente têm mais de uma causa. Este guia analisa as causas das quedas e faz algumas recomendações para ajudar a prevenir quedas, lesões e perda de independência.
Urban Sound Event Detection and Classification
Alves, João; Guerreiro, Pedro; Marques, Gonçalo; Paulo, JoelThe ability to automatically detect/classify complex and dynamic urban sounds is important tool for urban planning such as building efficient noise monitoring and control, surveillance systems, urban soundscape mappings, and could be a foundation for improvement of life in the cities of tomorrow.We present a proof of concept for a sound detection, monitoring and classification system for urban environments in t...
LPS modulates the expression of iron-related immune genes in two Antarctic noto...
Martínez, Danixa Pamela; Sousa, Carmen; Oyarzún, Ricardo; Pontigo, Juan Pablo; Canario, Adelino; Power, Deborah; Vargas-Chacoff, Luis; Guerreiro, PedroThe non-specific immunity can induce iron deprivation as a defense mechanism against potential bacterial pathogens, but little information is available as to its role in Antarctic fish. In this study the response of iron metabolism related genes was evaluated in liver and head kidney of the Antarctic notothenoids Notothenia coriiceps and Notothenia rossii 7 days after lipopolysaccharide (LPS) injection. Average...
Phase angle in osteoarthritis patients, relations with pain, muscular mass and ...
Pais, Sandra; Guerreiro, Pedro; Guerreiro, Carla; Botelho, MartaSeveral researches have been carried out to see the relation between the Phase Angle (PhA), disease and several health risks factors. Ageing is associated with the loss of muscle mass and changes in body composition, which result in a decrease of the PhA. Malnutrition and inflammation have been reported to have a strong influence on PhA in diseased individuals. Subjects with Osteoarthritis (OA) have decreased m...