136 documents found, page 1 of 14
Anti-corrosion and cytotoxicity properties of inorganic surface treatments on M...
Neves, CS; Sousa, I; Freitas, MA; Moreira, L; Costa, C; Teixeira, JP; Fraga, S; Silva, RM; Silva, RF; Starykevich, M; Scharnagl, N; Zheludkevich, MLIn this work biodegradable Mg1Ca alloy underwent surface modification using hydroxyapatite (HAp), aluminium oxide (Al2O3), and treatments with phosphoric (H3PO4), hydrofluoric (HF), and acetic (CH3COOH) acids. The resulting surface-treated Mg substrates were assessed in terms of phase content and chemical composition through X-ray diffraction (XRD) and glow discharge optical emission spectrometry (GDOES). Addit...
Incidental nanoparticle characterisation in industrial settings to support risk...
Moreno-Martín, V; López, M; Bou, D; Fraga, S; Teixeira, JP; López-Lilao, A; Sanfélix, V; Monfort, E; Viana, MResearch on nanoparticle (NP) release and potential exposure can be assessed through experimental field campaigns, laboratory simulations, and prediction models. However, risk assessment models are typically designed for manufactured NP (MNP) and have not been adapted for incidental NP (INP) properties. A notable research gap is identifying NP sources and their chemical, physical, and toxicological properties, ...
Exposure to per-and poly-fluoroalkyl substances and respiratory and skin effect...
Hatem, G; Faria, AM; Pinto, MB; Salamova, A; Teixeira, JP; Costa, C; Madureira, JDespite being previously banned due to long-term health effects, Per- and polyfluoroalkyl substances (PFAS) remain widespread in the environment, accumulating in animals and humans. This systematic review and meta-analysis explores associations between exposure to PFAS and asthma onset, wheezing, atopic dermatitis, and eczema in children and adolescents while addressing exposure timing and sex-specific differen...
Potential human exposure and risks of incidental nanoparticles released during ...
Moreno-Martín, V; López, M; Roldan, C; Bou, D; Fraga, S; Teixeira, JP; López-Lilao, A; Sanfélix, V; Moliner, R; Monfort, E; Viana, MRotary dry cutting and rectifying of ceramic tiles are sources of fine particulate matter (PM2.5) and nanoparticles (NPs). These activities are typically carried out inside industrial facilities during the manufacturing process, as well as outdoors and in residential indoor spaces during the installation phase, where mitigation measures are seldom implemented. This work aimed to understand the particle formatio...
Comparative efficacy of essential oils against Cutibacterium acnes: effect upon...
Oliveira, AS; Gaspar, C; Rolo, J; Palmeira-de-Oliveira, R; Teixeira, JP; Martinez-de-Oliveira, J; Palmeira-de-Oliveira, AObjectives: Despite being a commensal of human skin, Cutibacterium acnes plays an important role in the pathogenesis of Acne vulgaris, with the loss of bacterial phylotype diversity being related to disease progression. This study evaluated differences in the virulence profile of C. acnes strains from different phylotypes and investigated the possible phylotype-selective efficacy of essential oils (EOs) from Th...
Hazard characterization of the mycotoxins enniatins and beauvericin to identify...
Behr, AC; Fæste, CK; Azqueta, A; Tavares, AM; Spyropoulou, A; Solhaug, A; Olsen, AK; Vettorazzi, A; Mertens, B; Zegura, B; Streel, C; Ndiaye, DEnniatins (ENNs) and beauvericin (BEA) are cyclic hexadepsipeptide fungal metabolites which have demonstrated antibiotic, antimycotic, and insecticidal activities. The substantial toxic potentials of these mycotoxins are associated with their ionophoric molecular properties and relatively high lipophilicities. ENNs occur extensively in grain and grain-derived products and are considered a food safety issue by t...
Association between exposure to airborne endocrine disrupting chemicals and ast...
Hatem, G; Faria, AM; Pinto, MB; Teixeira, JP; Salamova, A; Costa, C; Madureira, JVarious studies have explored the association between Endocrine Disrupting Chemicals (EDCs) exposure and children's and adolescents' respiratory health, showing potential long-term effects and links to asthma. This systematic review explores the association between exposure to seven EDC groups during school age and adolescence and asthma onset or exacerbation while highlighting the predominant compounds underly...
Baseline data and associations between urinary biomarkers of polycyclic aromati...
Barros, B; Paiva, AM; Oliveira, M; Alves, S; Esteves, F; Fernandes, A; Vaz, J; Slezakova, K; Costa, S; Teixeira, JP; Morais, SIntroduction: Available literature has found an association between firefighting and pathologic pathways leading to cardiorespiratory diseases, which have been linked with exposure to polycyclic aromatic hydrocarbons (PAHs). PAHs are highlighted as priority pollutants by the European Human Biomonitoring Initiative in occupational and non-occupational contexts. Methods: This cross-sectional study is the first to...
Biomonitoring of firefighters' exposure to priority pollutant metal(loid)s duri...
Paiva, AM; Barros, B; Azevedo, R; Oliveira, M; Alves, S; Esteves, F; Fernandes, A; Vaz, J; Alves, MJ; Slezakova, K; Pereira, MDC; Teixeira, JP; Costa, SWildland firefighters are exposed to metal(loid)s released during wildfires through vegetation combustion, which also promotes remobilization of accumulated anthropogenic metal(loid)s. Studies biomonitoring metal(loid)s exposure promoted exclusively by wildfire suppression activities are lacking. This work aimed to characterize, for the first time, the impact of real-life wildland firefighting operations on uri...
Toxoplasma gondii IgG Serointensity Is Positively Associated With Frailty
Mohyuddin, H; Laffon, B; Teixeira, JP; Costa, S; Teixeira-Gomes, A; Pásaro, E; Constantine, N; Dagdag, A; Ortmeyer, HK; Tizenberg, B; Afram, L; Yen, PYBackground: Persistent inflammation related to aging (inflammaging) is exacerbated by chronic infections and contributes to frailty in older adults. We hypothesized associations between Toxoplasma gondii (T. gondii), a common parasite causing an oligosymptomatic unremitting infection, and frailty, and secondarily between T. gondii and previously reported markers of immune activation in frailty.Methods: We analy...