16 documents found, page 1 of 2
Intestinal mucosal alterations parallel central demyelination and remyelination...
Ferreira, Carolina; Carvalho, Filipa; Vieira, Pedro; Alves, André; Palavra, Filipe; Almeida, Jani; Alves, Vera; Coscueta, EzequielBackground: The gut-brain axis has been increasingly recognized as a critical factor in Multiple Sclerosis (MS) pathophysiology. While its role in demyelination is well documented, gut-brain axis involvement during remyelination remains largely unexplored. Methods: Using the cuprizone (CPZ) model, which induces reversible demyelination and spontaneous remyelination upon toxin withdrawal, we investigated gut and...
The use of cecal samples from Wistar rats in in vitro fermentation to determine...
Salsinha, Ana Sofia; Cima, André; Araújo-Rodrigues, Helena; Viana, Sofia; Reis, Flávio; Coscueta, Ezequiel R.; Rodríguez-Alcalá, Luis MiguelThe influence of gut microbiota in the onset and development of several metabolic diseases, such as obesity and diabetes, has gained attention over the last few years. Indeed, diet plays an essential role in gut microbiota modulation. Western diet (WD), characterized by high-sugar and high-fat consumption, alters gut microbiome composition, diversity index, microbial relative levels, and functional pathways. Se...
Effect of blueberry supplementation on a diet-induced rat model of prediabetes—...
Ferreira, Gonçalo; Vieira, Pedro; Alves, André; Nunes, Sara; Preguiça, Inês; Martins-Marques, Tânia; Ribeiro, Tânia; Girão, Henrique; Figueirinha, ArturBlueberries, red fruits enriched in polyphenols and fibers, are envisaged as a promising nutraceutical intervention in a plethora of metabolic diseases. Prediabetes, an intermediate state between normal glucose tolerance and type 2 diabetes, fuels the development of complications, including hepatic steatosis. In previous work, we have demonstrated that blueberry juice (BJ) supplementation benefits glycemic cont...
Exploring yeast glucans for vaccine enhancement: sustainable strategies for ove...
Azevedo-Silva, João; Amorim, Manuela; Tavares-Valente, Diana; Sousa, Pedro; Mohamath, Randolph; Voigt, Emily A.; Guderian, Jeffrey A.; Kinsey, RobertVaccine adjuvants are important for enhancing vaccine efficacy, and although aluminium salts (Alum) are the most used, their limited ability to induce specific immune responses has spurred the search for new adjuvants. However, many adjuvants fail during product development due to manufacturability, supply, stability, or safety concerns. This work hypothesizes that protein-free yeast glucans can be used as vacc...
Exploring quercetin's potential to counteract intestinal pro-inflammatory effec...
Sousa, Adelaide; Azevedo, Rui; Costa, Vera M.; Oliveira, Sara; Viana, Sofia; Reis, Flávio; Almeida, Agostinho; Matafome, Paulo; Dias-Pereira, PatríciaBackground: Silver nanoparticles (AgNP) elicit an intestinal response characterized by vascular and cellular changes, alongside the release of cytokines linked to the activation of the nuclear factor-кB (NF-кB) pathway. Consequently, a search was conducted for a compound capable of counteracting the primary pro-inflammatory effects induced by these nanoparticles [1]. Given the reported anti-inflammatory propert...
TNFR2 as a Potential Biomarker for Early Detection and Progression of CKD
Lousa, Irina; Reis, Flávio; Viana, Sofia; Vieira, Pedro; Vala, Helena; Belo, Luís; Santos-Silva, AliceThe inflammatory pathway driven by TNF-α, through its receptors TNFR1 and TNFR2, is a common feature in the pathogenesis of chronic kidney disease (CKD), regardless of the initial disease cause. Evidence correlates the chronic inflammatory status with decreased renal function. Our aim was to evaluate the potential of TNF receptors as biomarkers for CKD diagnosis and staging, as well as their association with th...
Biodistribution and intestinal inflammatory response following voluntary oral i...
Sousa, Adelaide; Azevedo, Rui; Costa, Vera Marisa; Oliveira, Sara; Preguiça, Inês; Viana, Sofia; Reis, Flávio; Almeida, Agostinho; Matafome, Paulo N.Silver nanoparticles (AgNP) are among the most widely commercialized nanomaterials globally, with applications in medicine and the food industry. Consequently, the increased use of AgNP in the food industry has led to an unavoidable rise in human exposure to these nanoparticles. Their widespread use raises concerns about potential hazards to human health, specifically their intestinal pro-inflammatory effects....
TNFR2 as a Potential Biomarker for Early Detection and Progression of CKD
Lousa, Irina; Reis, Flávio; Viana, Sofia; Vieira, Pedro; Vala, Helena; Belo, Luís; Santos-Silva, AliceThe inflammatory pathway driven by TNF-α, through its receptors TNFR1 and TNFR2, is a common feature in the pathogenesis of chronic kidney disease (CKD), regardless of the initial disease cause. Evidence correlates the chronic inflammatory status with decreased renal function. Our aim was to evaluate the potential of TNF receptors as biomarkers for CKD diagnosis and staging, as well as their association with th...
Impact of dietary sugars on gut microbiota and metabolic health
Garcia, Karina; Ferreira, Gonçalo; Reis, Flávio; Viana, SofiaExcessive sugar consumption is a risk factor for the development of several disorders, including metabolic, cardiovascular, neurological conditions and even some cancers, and has been linked to increased morbidity and mortality. The popularization of the typical Western diet, featured by an excessive intake of saturated fats and added sugars and a low consumption of unprocessed fruits, vegetables and fiber, may...
Crescent-like lesions as an early signature of nephropathy in a rat model of pr...
Nunes, Sara; Alves, André; Preguiça, Inês; Barbosa, Adelaide; Vieira, Pedro; Mendes, Fernando; Martins, Diana; Viana, Sofia; Reis, FlávioDiabetic nephropathy (DN) is a major microvascular complication of diabetes. Obesity and hyperlipidemia, fueled by unhealthy food habits, are risk factors to glomerular filtration rate (GFR) decline and DN progression. Several studies recommend that diabetic patients should be screened early (in prediabetes) for kidney disease, in order to prevent advanced stages, for whom the current interventions are clearly ...