171,625 results match your criteria: "Portugal; P.CCC Porto Comprehensive Cancer Centre[Affiliation]"

Objective: Neutrophil-to-lymphocyte ratio (NLR) is a readily available parameter, associated with long-term outcomes in cardiovascular conditions. This study aims to analyze the predictors of NLR and its impact on prognosis and disease-specific outcomes following EVAR.

Methods: Single-center retrospective cohort study.

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Vancomycin-Resistant Enterococcus faecium: A current perspective on resilience, adaptation, and the urgent need for novel strategies.

J Glob Antimicrob Resist

January 2025

UCIBIO, Unidade de Ciências Biomoleculares Aplicadas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal; Laboratório Associado i4HB, Instituto para a Saúde e a Bioeconomia, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal; UCIBIO, Unidade de Ciências Biomoleculares Aplicadas, Instituto Universitário de Ciências da Saúde (1H-TOXRUN, IUCS-CESPU), Gandra, Portugal. Electronic address:

Vancomycin-resistant Enterococcus faecium (VREfm) has become a critical opportunistic pathogen, urgently requiring new antimicrobial strategies due to its rising prevalence and significant impact on patient safety and healthcare costs. VREfm continues to evolve through mutations and the acquisition of new genes via horizontal gene transfer, contributing to resistance against several last-resort antibiotics. Although primarily hospital-associated, VREfm is also detected in the community, food chain, livestock, and environmental sources like wastewater, indicating diverse transmission pathways and the need for a One Health approach.

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Sensitive fluorescent detection of SARS-CoV-2 RNA using an enzymatic-based method.

Spectrochim Acta A Mol Biomol Spectrosc

January 2025

CICS-UBI - Health Sciences Research Centre University of Beira Interior Covilhã Portugal; RISE-Health, Departamento de Química, Faculdade de Ciências, Universidade da Beira Interior, Rua Marquês d'Ávila e Bolama 6201-001 Covilhã, Portugal; Departamento de Química, Universidade da Beira Interior, Rua Marquês de Ávila e Bolama 6201-001 Covilhã, Portugal. Electronic address:

Rapid, quantitative, and sensitive detection of viral oligonucleotides can help to diagnose the infection before symptoms occur, monitor disease progression, and identify viral subtypes. A one-pot, simple, rapid hairpin-mediated nicking enzymatic signal amplification (HNESA) method was previously developed for nucleic acids detection. In the present work, this method was applied for the detection of SARS-CoV-2 RNA by designing an assistant probe (AP) that contains the complementary sequence for the target, the sequence of hybridization with the loop region of the molecular beacon (MB), and the recognition site of the nicking endonuclease Nt.

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Antheraea pernyi silk nanofibrils with inherent RGD motifs accelerate diabetic wound healing: A novel drug-free strategy to promote hemostasis, regulate immunity and improve re-epithelization.

Biomaterials

January 2025

Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610054, China. Electronic address:

The chronic inflammation and matrix metalloprotease (MMP)-induced tissue degradation significantly disrupt re-epithelization and delay the healing process of diabetic wounds. To address these issues, we produced nanofibrils from Antheraea pernyi (Ap) silk fibers via a facile and green treatment of swelling and shearing. The integrin receptors on the cytomembrane could specifically bind to the Ap nanofibrils (ApNFs) due to their inherent Arg-Gly-Asp (RGD) motifs, which activated platelets to accelerate coagulation and promoted fibroblast migration, adhesion and spreading.

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[Approach to Scabies in Children: An Update].

Acta Med Port

January 2025

Serviço de Dermatologia. Unidade Local de Saúde Santo António. Porto. Portugal.

Scabies is a common dermatological infection that globally affects more than 200 million people. It is caused by the parasite Sarcoptes scabiei var. hominis and its transmission primarily occurs through direct contact.

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Gender and remote work: associations between mental health and hours of remote work and housework.

Cien Saude Colet

January 2025

Laboratório de Educação em Ambiente e Saúde, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz. Rio de Janeiro RJ Brasil.

To investigate the association between hours of remote work (RWHs) and housework (HWHs), independently, as well as the combined total of work hours (WHs), with gender and mental health of remote workers during the COVID-19 pandemic. Cross-sectional study with data from the ELSA-Brasil (N = 2,318). On average, women reported more time spent on HWHs and WHs than men, while no difference was found in RWHs.

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COVID-19 mortality among international migrants in Brazil: spatio-temporal analysis, 2020-2022.

Epidemiol Serv Saude

January 2025

Universidade do Estado do Rio de Janeiro, Departamento de Epidemiologia, Rio de Janeiro, RJ, Brazil.

Objective: To describe the mortality profile and analyze the spatiotemporal distribution of COVID-19 mortality among international migrants residing in Brazil from 2020 to 2022.

Methods: This is a descriptive and ecological cross-sectional study using secondary data. Absolute and relative frequencies of the sociodemographic profile and mortality coefficients (MCs) were analyzed.

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Preparing the 2025 revision of the International Code of Nomenclature of Prokaryotes.

Int J Syst Evol Microbiol

January 2025

Department of Infectious Disease, Institute for Biomedicine, Sahlgrenska Academy, University of Gothenburg, P.O. Box 7193, SE-402 34 Gteborg, Sweden.

The editorial Board of the (ICNP) - the Prokaryotic Code - has compiled already ratified proposed emendations of the ICNP, together with additional editorial changes and clarifications. These were implemented in a draft 2025 revision of the . To comply with Articles 13(b)(4) and 4(d) of the statutes of the International Committee on Systematics of Prokaryotes (ICSP), a public discussion of the document will start on 1 January (or later if required) 2025, to last for 6 months.

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Many nurses and allied professionals (NAPs) lack the skills, knowledge and confidence to engage in conducting and implementing research. This statement describes the importance of NAPs' involvement in clinical research within the context of cardiovascular care. The existing gaps, barriers and enablers to NAPs involvement in research as a potential response to workforce issues in these professions as well as to contribute to excellence in patient care delivery and associated outcomes are identified.

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Evaporating Primordial Black Holes, the String Axiverse, and Hot Dark Radiation.

Phys Rev Lett

December 2024

Univ Coimbra, Faculdade de Ciências e Tecnologia da Universidade de Coimbra and CFisUC, Rua Larga, 3004-516 Coimbra, Portugal.

The search for primordial black holes (PBHs) with masses M≪M_{⊙} is motivated by natural early-Universe production mechanisms and that PBHs can be dark matter. For M≲10^{14}  kg, the PBH density is constrained by null searches for their expected Hawking emission (HE), the characteristics of which are, however, sensitive to new states beyond the standard model. If there exists a large number of spin-0 particles in nature, PBHs can, through HE, develop and maintain non-negligible spins, modifying the visible HE.

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Spiking Flip-Flop Memory in Resonant Tunneling Diode Neurons.

Phys Rev Lett

December 2024

University of Strathclyde, Institute of Photonics, SUPA Dept of Physics, Glasgow, United Kingdom.

We report a spiking flip-flop memory mechanism that allows controllably switching between neural-like excitable spike-firing and quiescent dynamics in a resonant tunneling diode (RTD) neuron under low-amplitude (<150  mV pulses) and high-speed (ns rate) inputs pulses. We also show that the timing of the set-reset input pulses is critical to elicit switching responses between spiking and quiescent regimes in the system. The demonstrated flip-flop spiking memory, in which spiking regimes can be controllably excited, stored, and inhibited in RTD neurons via specific low-amplitude, high-speed signals (delivered at proper time instants) offers high promise for RTD-based spiking neural networks, with the potential to be extended further to optoelectronic implementations where RTD neurons and RTD memory elements are deployed alongside for fast and efficient photonic-electronic neuromorphic computing and artificial intelligence hardware.

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Z boson events at the Large Hadron Collider can be selected with high purity and are sensitive to a diverse range of QCD phenomena. As a result, these events are often used to probe the nature of the strong force, improve Monte Carlo event generators, and search for deviations from standard model predictions. All previous measurements of Z boson production characterize the event properties using a small number of observables and present the results as differential cross sections in predetermined bins.

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Generative artificial intelligence enables the generation of bone scintigraphy images and improves generalization of deep learning models in data-constrained environments.

Eur J Nucl Med Mol Imaging

January 2025

Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Spitalgasse 23, Vienna, 1090, Austria.

Purpose: Advancements of deep learning in medical imaging are often constrained by the limited availability of large, annotated datasets, resulting in underperforming models when deployed under real-world conditions. This study investigated a generative artificial intelligence (AI) approach to create synthetic medical images taking the example of bone scintigraphy scans, to increase the data diversity of small-scale datasets for more effective model training and improved generalization.

Methods: We trained a generative model on Tc-bone scintigraphy scans from 9,170 patients in one center to generate high-quality and fully anonymized annotated scans of patients representing two distinct disease patterns: abnormal uptake indicative of (i) bone metastases and (ii) cardiac uptake indicative of cardiac amyloidosis.

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The influence of arbuscular mycorrhizal fungi (AMF) inoculation on the growth and physiology of Phaseolus vulgaris L. and Zea mays L. in the Brazilian tropical seasonal dry forest is not well known.

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Objective: High body mass index (BMI) may reduce ulcerative colitis (UC) treatment efficacy. Etrasimod is an oral, once-daily (QD), selective sphingosine 1-phosphate (S1P)1,4,5 receptor modulator for the treatment of moderately to severely active UC. This post hoc analysis assessed treatment outcomes according to BMI in ELEVATE UC 52 and ELEVATE UC 12.

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Background: Vulvar squamous cell carcinoma incidence is increasing, especially among women under 60, largely attributed to human papillomavirus infections. Precursor pre-invasive vulvar lesions are frequently underdiagnosed. Routine vulvar inspection during cervical cancer screening could offer an opportunity for the detection of these lesions.

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Aim: To increase conceptual clarity regarding the self-management of school-age children and adolescents with chronic illnesses in a community context.

Design: Concept Analysis: Rodgers' evolutionary approach.

Data Sources: Search conducted in the Cumulative Index to Nursing and Allied Health Literature, Psychology and Behavioural Sciences Collection, Nursing and Allied Health Collection, Academic Search Complete, Cochrane, Web of Science, Medical Literature Analysis and Retrieval System Online, Scopus, Repositório Científico de Acesso Aberto de Portugal, ProQuest Dissertations and Theses, Joanna Briggs Institute Evidence Synthesis.

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A Case of Ala Reconstruction With an Extended Pedicle Helical Rim Flap.

Microsurgery

February 2025

Unidade Local de Saúde Gaia/Espinho, Serviço de Cirurgia Plástica Reconstrutiva, Craniomaxilofacial e Mão, Unidade de Microcirurgia, Unidade Local de Saúde Gaia/Espinho, Vila Nova de Gaia, Portugal.

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Projected changes in moisture sources and sinks affecting the US East Coast and the Caribbean Sea.

Ann N Y Acad Sci

January 2025

Environmental Physics Laboratory (EPhysLab), Centro de Investigación Mariña, Universidade de Vigo, Ourense, Spain.

This study uses a combination of the FLEXPART Lagrangian dispersion model with the Weather Research and Forecasting (WRF) mesoscale Eulerian model (FLEXPART-WRF) to analyze the expected mid- to late-century changes in the moisture sources and sinks of the North American East Coast (ENA) and the Gulf of Mexico (GM), as well as their most relevant abrupt moisture transport events-atmospheric rivers (ARs) and low-level jets of the Great Plains (GPLLJ) and the Caribbean (CLLJ). Both the ENA and GM are expected to increase in importance as moisture source regions over the century, both overall and in their contributions to the ARs and both LLJs. A notable increase in the intensity of the GPLLJ and CLLJ moisture sources is also observed.

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Introduction: Veno-Arterial Extracorporeal Membrane Oxygenation (VA-ECMO) has emerged as a crucial component of critical care medicine, mainly as a lifesaving intervention for patients experiencing refractory cardiac arrest and respiratory failure.

Background: In the past, VA-ECMO decannulation was surgical and often associated with a high rate of periprocedural complications, such as surgical site infection, bleeding, and patient mobilization costs. To reduce the rate of these adverse events, many percutaneous techniques utilizing suture-mediated closing devices have been adopted.

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Interventions to reduce non-prescription antimicrobial sales in community pharmacies.

Cochrane Database Syst Rev

January 2025

Global Health Nursing, Graduate School of Nursing Science, St. Luke's International University, Chuo-ku, Japan.

Background: Antimicrobial resistance (AMR) is a major global health concern. One of the most important causes of AMR is the excessive and inappropriate use of antimicrobial drugs in healthcare and community settings. Most countries have policies that require antimicrobial drugs to be obtained from a pharmacy by prescription.

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