170,470 results match your criteria: "Portugal; Centre of Mathematics of the University of Porto[Affiliation]"

Cerebral abscess due to hematogenous spread originating from a urinary infection is a rare condition. This clinical case involves an 80-year-old woman with a history of recurrent urinary infections. She presented to the emergency department with fever and altered consciousness.

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The aims of the present study were to: (i) quantify accelerations and decelerations of soccer players during match-play across two consecutive seasons from the English Premier League (EPL) and Ligue 1 (L1); and (ii) compare any positional differences between the two leagues. Fifty-eight male professional soccer players were monitored during all league matches (n = 144) across seasons 2020/21 and 2021/22. The absolute number of accelerations (> +3 m/s) and decelerations (< -3 m/s) and accelerations and decelerations per minute were examined.

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The aims of this study were to: compare training loads between the English Premier League (EPL) and English Championship League (ECL) and examine differences between playing positions. Forty-six 1 team players from the same club participated in the study. GPS metrics were obtained during all EPL and ECL training sessions across four consecutive seasons, 2019-20 to 2022-23.

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Oxidative stress is augmented under hypoxic environments, which may be attenuated with antioxidant supplementation. We investigated the effects of dietary nitrate (NO-) supplementation combined with high-intensity training performed under hypoxic conditions on antioxidant/pro-oxidant balance. Thirty trained participants were assigned to one of three groups - HNO: hypoxia (13% FO) + NO-; HPL: hypoxia + placebo; CON: normoxia (20.

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The aim of this study was to compare external match load, according to match outcome, match location, and opponent quality across five competitive seasons. Forty-six professional outfield soccer players from the same English Premier League club across the complete 2018/19 to 2022/23 seasons were involved in the study. For each match, the outcome (win, draw, loss), match location (home, away) and quality of opponent (top or bottom six teams, remaining mid-table teams) were recorded.

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The purpose of this study was to examine the effects of 8-week intervention of recreational soccer (SCG) and basketball (BCG) conditioned games, as compared to self-exercise (SECG) and inactive (ICG) control groups, on aerobic capacity, vertical (VJ) and horizontal jump (SLJ) performance, and handgrip maximal strength (HG) in sedentary overweight and obese men and women. Ninety male and female sedentary overweight and obese volunteers (19.8 ± 1.

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This study aimed to characterize match peak speeds, during a 20-second time window (10 seconds immediately before and after the match peak speed), in soccer matches. Twenty elite soccer players were monitored with global navigation satellite system (GNSS) devices during six soccer matches from the Brazilian first division. After identifying the peak speed, individual speeds within 10 seconds before and 10 seconds after were collected at each 0.

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This study aimed to examine physical match performance and the effects of opponent ranking and positional differences in both the English Championship League (ECL) and the English Premier League (EPL) over five consecutive seasons. Fifty-four professional outfield soccer players (average age 24.6 ± 5.

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Lymphomas of T-follicular helper origin (T-follicular helper-cell lymphoma [TFHL]) are often accompanied by an expansion of B-immunoblasts, occasionally with Hodgkin/Reed-Sternberg-like (HRS-like) cells, making the differential diagnosis with classic Hodgkin lymphoma (CHL) difficult. We compared the morphologic, immunophenotypic, and molecular features of 15 TFHL and 12 CHL samples and discussed 4 challenging cases of uncertain diagnosis. Compared with CHL, TFHL disclosed more frequent sparing of subcortical sinuses, high-endothelium venule proliferation, dendritic cell meshwork expansion, T-cell atypia, and aberrant T-cell immunophenotype.

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Mitochondria are affected by chemical substances and play a critical role in drug-induced liver injury (DILI). Chemical substances can have a significant impact on various cellular processes, such as the disruption of oxidative phosphorylation, oxidative stress, and alteration of glucose metabolism. Given the consequences of these effects, it is crucial to understand the molecular pathways of chemical substances in the context of hepatotoxicity to prevent and treat DILI.

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How well is the female population represented in clinical trials with infusion therapies for Parkinson's disease? A systematic review and metanalysis.

Eur J Neurol

January 2025

Parkinson and Movement Disorders Unit, Study Center for Neurodegenerative diseases (CESNE), Department of Neuroscience, Padua Neuroscience Center (PNC), University of Padua, Padua, Italy.

Background: Parkinson's disease (PD) is a neurodegenerative disorder affecting both sexes, but differences exist between male and female in clinical manifestations, functional impact of symptoms and hormonal influences. Therefore, representativeness of females in PD trials indirectly determines the external validity of the clinical research in this field.

Objective: To estimate the representativeness of female in infusion therapy trials for advanced PD.

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Transcatheter aortic valve replacement (TAVR) is a well-established treatment for severe aortic stenosis, especially in patients over 75 or those at high surgical risk. While these prosthetic valves have a lower thrombogenic profile than mechanical heart valves, leaflet thrombosis in transcatheter aortic valves (TAV) occurs in an estimated 5%-40% of cases. Most TAV thromboses are subclinical and can be detected via cardiac computed tomography (CCT), which reveals hypo-attenuating leaflet thickening and reduced leaflet motion in asymptomatic patients without elevated transprosthetic gradients on echocardiography.

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Background: Up to 30% of patients with Crohn's disease (CD) will experience a mild disease course. However, there is no consensus definition for mild CD.

Aim: To examine the Simple Endoscopic Score for Crohn's disease (SES-CD) thresholds best associated with low likelihood of long-term disease progression.

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Wound care challenges healthcare systems worldwide as traditional dressings often fall short in addressing the diverse and complex nature of wound healing. Given conventional treatments limitations, innovative alternatives are urgent. Additive manufacturing (AM) has emerged as a distinct and transformative approach for developing advanced wound dressings, offering unprecedented functionality and customization.

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Prediction of Pt, Ir, Ru, and Rh complexes light absorption in the therapeutic window for phototherapy using machine learning.

J Cheminform

January 2025

PROMOCS Laboratory, Department of Chemistry and Chemical Technologies, University of Calabria, Arcavacata di Rende (CS), Italy.

Effective light-based cancer treatments, such as photodynamic therapy (PDT) and photoactivated chemotherapy (PACT), rely on compounds that are activated by light efficiently, and absorb within the therapeutic window (600-850 nm). Traditional prediction methods for these light absorption properties, including Time-Dependent Density Functional Theory (TDDFT), are often computationally intensive and time-consuming. In this study, we explore a machine learning (ML) approach to predict the light absorption in the region of the therapeutic window of platinum, iridium, ruthenium, and rhodium complexes, aiming at streamlining the screening of potential photoactivatable prodrugs.

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The fine line between relief and risk: new insights into postoperative delirium.

Br J Anaesth

January 2025

Department of Anaesthesiology, Critical Care and Pain Medicine, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy. Electronic address:

There is a complex association between postoperative pain and postoperative delirium, which highlights the need for a more balanced approach to pain management that considers various risk factors. We emphasise the importance of comprehensive documentation and standardised monitoring to improve detection and management of postoperative delirium, ultimately enhancing patient outcomes. We advocate for a precision anaesthesia approach, which tailors care to individual patient profiles, as a potential solution to address these challenges.

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Objective: A recently published study concerning variables associated with survival longer than one year in palliative care included several types of cancer. A secondary analysis limited to patients with colorectal cancer was performed to analyze a more homogeneous group of patients.

Methods: Patients were identified through electronic records from 2012 to December 2018.

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Exploring risk factors linked to canine lymphoma: a case-control study.

Top Companion Anim Med

January 2025

Vet-OncoNet, Population Studies Department, ICBAS - Instituto de Ciências Biomédicas Abel Salazar-, University of Porto, Rua de Jorge Viterbo Ferreira, 228 4050-313, Porto, Portugal.

Environmental factors, largely influenced by human behavior, account for approximately 80% of malignant tumors. Risk factors associated with non-Hodgkin's lymphoma (NHL) have been identified in various countries among both humans and domestic animals. This study aimed to investigate potential risk factors for NHL in dogs residing in the district of Porto, Portugal.

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PFAS biodegradation by Labrys portucalensis F11: Evidence of chain shortening and identification of metabolites of PFOS, 6:2 FTS, and 5:3 FTCA.

Sci Total Environ

January 2025

Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, United States; Research and Education in Energy, Environment and Water (RENEW), University at Buffalo, The State University of New York, Buffalo, NY 14260, United States. Electronic address:

The biodegradation of three per- and polyfluoroalkyl substances (PFAS), namely perfluorooctane sulfonic acid (PFOS), 6:2-fluorotelomer sulfonic acid (6:2 FTS), and 5:3-fluorotelomer carboxylic acid (5:3 FTCA), were evaluated using Labrys portucalensis F11, an aerobic bacteria known to defluorinate fluorine-containing compounds. Cultures of L. portucalensis F11 were grown in minimal salts media and treated with 10,000 μg/L of individual PFAS as the sole carbon source in separate flasks.

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Comprehensive histopathological analysis of gastric cancer in European and Latin America populations reveals differences in PDL1, HER2, p53 and MUC6 expression.

Gastric Cancer

January 2025

Department of Medical Oncology, Hospital Clinico Universitario, INCLIVA, Biomedical Research Institute, University of Valencia, Avenida Menendez Pelayo nro 4 accesorio, Valencia, Spain.

Introduction: Gastric cancer (GC) burden is currently evolving with regional differences associated with complex behavioural, environmental, and genetic risk factors. The LEGACy study is a Horizon 2020-funded multi-institutional research project conducted prospectively to provide comprehensive data on the tumour biological characteristics of gastroesophageal cancer from European and LATAM countries.

Material And Methods: Treatment-naïve advanced gastroesophageal adenocarcinoma patients were prospectively recruited in seven European and LATAM countries.

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Hereditary diffuse gastric cancer is characterized by an increased risk of diffuse gastric cancer and lobular breast cancer, and is caused by pathogenic germline variants of E-cadherin and -E-catenin, which are key regulators of cell-cell adhesion. However, how the loss of cell-cell adhesion promotes cell dissemination remains to be fully understood. Therefore, a three-dimensional computer model was developed to describe the initial steps of diffuse gastric cancer development.

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Systemic siliconomas following breast implant rupture.

BMJ Case Rep

January 2025

General Surgery, Universidade de Lisboa Faculdade de Medicina, Lisboa, Portugal.

We report a case of a woman in her late 40s with a history of breast implant surgery following breast cancer treatment. She presented with asymmetrical breast enlargement, palpable contralateral axillary lymph nodes and cutaneous nodules on both forearms. In addition, imaging evaluation revealed intracapsular implant rupture, ipsilateral internal mammary enlarged lymph nodes and multiple mediastinal lymphadenopathies.

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Background: We sought to define textbook outcome in liver surgery (TOLS) for intrahepatic cholangiocarcinoma (ICC) by considering the implications of perioperative outcomes on overall survival (OS).

Methods: Using a multi-institutional database, TOLS for ICC was defined by employing novel machine learning (ML) models to identify perioperative factors most strongly predictive of OS ≥ 12 months. Subsequently, clinicopathologic factors associated with achieving TOLS were investigated.

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Fractional modelling of COVID-19 transmission incorporating asymptomatic and super-spreader individuals.

Math Biosci

January 2025

Center for Research and Development in Mathematics and Applications (CIDMA), Department of Mathematics, University of Aveiro, Aveiro 3810-193, Portugal. Electronic address:

The COVID-19 pandemic has presented unprecedented challenges worldwide, necessitating effective modelling approaches to understand and control its transmission dynamics. In this study, we propose a novel approach that integrates asymptomatic and super-spreader individuals in a single compartmental model. We highlight the advantages of utilizing incommensurate fractional order derivatives in ordinary differential equations, including increased flexibility in capturing disease dynamics and refined memory effects in the transmission process.

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