53,335 results match your criteria: "University of Porto; RISE@Health[Affiliation]"

Is single anastomosis duodenoileal bypass (SADI) an effective option for conversional surgery following sleeve gastrectomy? A comprehensive review and revised scope of current literature.

Obes Res Clin Pract

January 2025

Unit for Multidisciplinary Research in Biomedicine (UMIB), School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Porto, Portugal; Department of General Surgery, Unidade Local de Saúde de Entre o Douro e Vouga, Santa Maria da Feira, Portugal; ITR- Laboratory of Integrative and Translocation Research in Population Health, Porto, Portugal. Electronic address:

Background: Conversional surgery following sleeve gastrectomy (SG) is required in about 20 % of patients due to suboptimal outcomes. Single anastomosis duodenoileal bypass (SADI) has emerged as an option for such cases, though long-term outcomes remain unclear. This review analyzed available data on SADI as a conversional or second-stage procedure after SG.

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A new simple chronic heart failure prognostic index based on five general parameters.

Int J Cardiol

January 2025

Internal Medicine Department, Centro Hospitalar e Universitário São João, Portugal; Department of Medicine, Faculty of Medicine of University of Porto, Portugal. Electronic address:

Background: Prognostic prediction in heart failure (HF) is challenging and no single marker has proven effective. We propose an index based on B-type natriuretic peptide (BNP) and four widely available parameters.

Methods: We retrospectively analyzed adult outpatients with chronic HF with systolic dysfunction followed from January 2012 to December 2020.

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Describing the landscape of nutrition- and diet-related randomized controlled trials: meta-research study of protocols published between 2012 and 2022.

Am J Clin Nutr

January 2025

UK EQUATOR Centre, Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK. Electronic address:

Background: Publishing protocols promotes transparency and reproducibility. The scope and methods of protocols for nutrition- and diet-related randomized controlled trials (RCTs) have not been investigated yet.

Objective: Map the landscape of nutrition- and diet-related interventions research.

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Mastering rectal cancer MRI: From foundational concepts to optimal staging.

Eur J Radiol

January 2025

Department of Radiology, Mayo Clinic Rochester. 200 First Street SW, Rochester, MN 55905, USA; Department of Radiology, University of Sao Paulo, R. Dr. Ovídio Pires de Campos, 75 - Cerqueira César, São Paulo, SP 05403-010, Brazil. Electronic address:

MRI plays a critical role in the local staging, restaging, surveillance, and risk stratification of patients, ensuring they receive the most tailored therapy. As such, radiologists must be familiar not only with the key MRI findings that influence management decisions but also with the appropriate MRI protocols and structured reporting. Given the complexity of selecting the optimal therapy for each patient-which often requires multidisciplinary discussions-radiologists should be well-versed in relevant treatment strategies and surgical terms, understanding their significance in guiding patient care.

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Advances in Diagnosis, Treatment and Prognostic in Aortoiliac Occlusive Disease - A Narrative Review.

Port J Card Thorac Vasc Surg

January 2025

Department of Biomedicine - Unit of Anatomy, Faculty of Medicine, University of Porto; RISE@Health, Porto, Portugal.

Background: Aortoiliac disease (AID) is a variant of peripheral artery disease involving the infrarenal aorta and iliac arteries. Similar to other arterial diseases, aortoiliac disease obstructs blood flow through narrowed lumens or by embolization of plaques. AID, when symptomatic, may present with a triad of claudication, impotence, and absence of femoral pulses, a triad also referred as Leriche Syndrome (LS).

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Imaging Red Flags In A Symptomatic Abdominal Aortic Aneurysm.

Port J Card Thorac Vasc Surg

November 2024

Angiologia e Cirurgia Vascular, ULS de São João, Porto, Portugal; UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal.

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Objectives: To conduct a meta-analysis of the diagnostic performance of non-contrast magnetic resonance pulmonary angiography (NC-MRPA) and ventilation-perfusion (V/Q) scintigraphy for the detection of acute pulmonary embolism (PE).

Materials And Methods: Systematic searches of electronic databases were conducted from 2000 to 2024. Primary outcomes were per-patient sensitivity and specificity of NC-MRPA and V/Q scintigraphy.

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Objective: This study explored and compared stakeholder perspectives on enhancements to cervical cancer screening for vulnerable women across seven European countries.

Design: In a series of Collaborative User Boards, stakeholders were invited to collaborate on identifying facilitators to improve cervical cancer screening.

Setting: This study was part of the CBIG-SCREEN project which is funded by the European Union and targets disparities in cervical cancer screening for vulnerable women (www.

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Natural infection and diversity of hemotropic mycoplasmas in free-ranging Geoffroy's cat (Leopardus geoffroyi) and margay cat (Leopardus wiedii) populations in Southern Brazil.

Vet Microbiol

January 2025

Laboratório de Protozoologia e Rickettsioses Vetoriais (ProtozooVet), Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil. Electronic address:

Hemoplasma infection significantly impacts felines health, yet there is a research gap regarding free-ranging wild small felids. Therefore, this study aimed to investigate the occurrence of hemoplasma in Leopardus geoffroyi and Leopardus wiedii in southern Brazil. For this purpose, we conducted molecular research for Mycoplasma spp.

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Incidental nanoparticle characterisation in industrial settings to support risk assessment modelling.

Int J Hyg Environ Health

January 2025

Institute of Environmental Assessment and Water Research - Spanish Research council (IDAEA-CSIC), Barcelona, 08034, Spain; Spanish Ministry of Ecological Transition, Pollution Prevention Unit, Pza. San Juan de la Cruz 10, 28071, Madrid, Spain.

Research 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, especially in real-world settings.

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Introduction: Up to one-third of pediatric patients with acute appendicitis present with radiological evidence of appendicoliths. However, whether appendicolith presence influences prognosis under conservative management compared to non-appendicolith appendicitis remains uncertain.

Methods: We systematically searched PubMed, Cochrane, Embase, and Web of Science databases for studies comparing pediatric appendicolith and non-appendicolith appendicitis managed conservatively with antibiotics, fluids, and percutaneous drainage.

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Shared Pheromone Compounds in Neotropical Rice Stink Bugs: The Role of Zingiberenol and Sesquipiperitol.

J Chem Ecol

January 2025

Embrapa Recursos Genéticos e Biotecnologia, Laboratório de Semioquímicos, Brasília, DF, 70297-400, Brazil.

The small black stem bug, Paratibraca (= Glyphepomis) spinosa (Campos and Grazia 1998), is a rice pest in Brazil and is part of a complex of stink bugs that includes Oebalus poecilus (Dallas) and Tibraca limbativentris Stål. Together, these pentatomid species pose a serious threat to rice crops throughout South America. In this study, we identified the sex pheromone of P.

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Mitochondria as a Therapeutic Target: Focusing on Traumatic Brain Injury.

J Integr Neurosci

January 2025

Department of Hepatology, Federal University of Health Sciences of Porto Alegre (UFCSPA), 90050-170 Porto Alegre, Rio Grande do Sul (RS), Brazil.

Mitochondria are organelles of eukaryotic cells delimited by two membranes and cristae that consume oxygen to produce adenosine triphosphate (ATP), and are involved in the synthesis of vital metabolites, calcium homeostasis, and cell death mechanisms. Strikingly, normal mitochondria function as an integration center between multiple conditions that determine neural cell homeostasis, whereas lesions that lead to mitochondrial dysfunction can desynchronize cellular functions, thus contributing to the pathophysiology of traumatic brain injury (TBI). In addition, TBI leads to impaired coupling of the mitochondrial electron transport system with oxidative phosphorylation that provides most of the energy needed to maintain vital functions, ionic homeostasis, and membrane potentials.

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Objectives: We aim to investigate cognitive phenotype distribution and MRI correlates across pediatric-, elderly-, and adult-onset MS patients as a function of disease duration.

Methods: In this cross-sectional study, we enrolled 1262 MS patients and 238 healthy controls, with neurological and cognitive assessments. A subset of 222 MS patients and 92 controls underwent 3T-MRI scan for brain atrophy and lesion analysis.

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SARS-CoV-2, the virus responsible for COVID-19, has undergone significant genetic evolution since its emergence in 2019. This study examines the genomic diversity of SARS-CoV-2 in Brazil after the worst phase of the pandemic, the wider adoption of routine vaccination, and the abolishment of other non-pharmacological preventive measures from July 2022 to July 2024 using 55,951 sequences retrieved from the GISAID database. The analysis focuses on the correlation between confirmed COVID-19 cases, sequencing efforts across Brazilian states, and the distribution and evolution of viral lineages.

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Curcumin-Loaded Lipid Nanoparticles: A Promising Antimicrobial Strategy Against in Endodontic Infections.

Pharmaceutics

January 2025

Laboratório Associado para a Química Verde-Rede de Química e Tecnologia (LAQV, REQUIMTE), Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.

This study aims to evaluate the efficacy of curcumin (CUR), a natural polyphenol with potent antimicrobial and anti-inflammatory properties, when formulated as solid lipid nanoparticles (CUR-loaded SLN) against . Solid lipid nanoparticles (SLNs) were prepared as a carrier for CUR, which significantly improved its solubility. SLNs made with cetyl palmitate and Tween 80 were obtained via the hot ultrasonication method.

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Background: Salbutamol, a short-acting β-agonist used in asthma treatment, is available in multiple formulations, including inhalers, nebulizers, oral tablets, and intravenous, intramuscular, and subcutaneous routes. Each formulation exhibits distinct pharmacokinetic (PK) and pharmacodynamic (PD) profiles, influencing therapeutic outcomes and adverse effects. Although asthma management predominantly relies on inhaled salbutamol, understanding how these formulations interact with patient-specific characteristics could improve personalized medicine approaches, potentially uncovering the therapeutic benefits of alternative formulations for an individual patient.

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: This work investigated the effect of bacterial nanocellulose (BNC) alone or with chemisorbed chlorhexidine or povidone-iodine on post-tooth extraction repair in rats undergoing bisphosphonate therapy. : Forty Wistar rats were treated with zoledronic acid, subjected to tooth extractions and allocated into groups according to the material inserted in the post-extraction socket: (1) BNC ( = 10); (2) BNC/Iodine ( = 10); (3) BNC/Chlorhex ( = 10); (4) Control ( = 10). Maxillae were dissected and macro- and microscopically analyzed.

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Dietary Surveys and Nutritional Epidemiology.

Nutrients

January 2025

School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal.

As the prevalence of lifestyle-related diseases continues to increase globally [...

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Processed Food Consumption and Sleep Quality in School-Aged Children: Insights from a Cross-Sectional Study.

Nutrients

January 2025

Health Sciences Research Unit: Nursing (UICISA: E), Nursing School of Coimbra, Avenida Bissaya Barreto, Polo C, 3046-851 Coimbra, Portugal.

Objective: This cross-sectional study aimed to investigate the association between processed food consumption and sleep quality among school-aged children.

Methods: Our sample consisted of 137 children, with 52.6% being girls with a mean age of 7.

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The food packaging industry is one of the fastest growing sectors of our economy, with a large contribution to environmental concerns due to the extensive use of fossil-derived materials. Combining wood-based materials, such as particleboards, with bio-adhesives may offer a great opportunity to develop sustainable packaging solutions with active antioxidant properties. In the present work, a phenolic extract of poplar bark was produced and bio-adhesives were formulated using citric acid as a cross-linker.

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Smart textiles provide a significant technological advancement, but their development must balance traditional textile properties with electronic features. To address this challenge, this study introduces a flexible, electrically conductive composite material that can be fabricated using a continuous bi-component extrusion process, making it ideal for sensor electrodes. The primary aim was to create a composite for the filament's core, combining multi-walled carbon nanotubes (MWCNTs), polypropylene (PP), and thermoplastic elastomer (TPE), optimised for conductivity and flexibility.

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Acylase-Based Coatings on Sandblasted Polydimethylsiloxane-Based Materials for Antimicrobial Applications.

Polymers (Basel)

January 2025

Center for Micro-Electro Mechanical Systems (CMEMS), Campus Azurém, University of Minho, 4800-058 Guimarães, Portugal.

Indwelling medical devices, such as urinary catheters, often experience bacterial colonization, forming biofilms that resist antibiotics and the host's immune defenses through quorum sensing (QS), a chemical communication system. This study explores the development of antimicrobial coatings by immobilizing acylase, a quorum-quenching enzyme, on sandblasted polydimethylsiloxane (PDMS) surfaces. PDMS, commonly used in medical devices, was sandblasted to increase its surface roughness, enhancing acylase attachment.

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The present work constitutes the initial experimental effort to characterise the dynamic tensile performance of basalt fibre grids employed in TRM systems. The tensile behaviour of a bi-directional basalt fibre grid was explored using a high-speed servo-hydraulic testing machine with specialised grips. Deformation and failure modes were captured using a high-speed camera.

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