Background: Motion correction methods based on slice-to-volume registration (SVR) for fetal magnetic resonance imaging (MRI) allow reconstruction of three-dimensional (3-D) isotropic images of the fetal brain and body. However, all existing SVR methods are confined to research settings, which limits clinical integration. Furthermore, there have been no reported SVR solutions for low-field 0.
View Article and Find Full Text PDFIn this study, a straightforward spectrophotometric method was developed for quantifying the total content of chalcones in a sample. The method exhibits linearity, accuracy, precision, repeatability, and enables the estimation of total chalcone content in trans-chalcone equivalents for a sample diluted in carbon tetrachloride and added to antimony pentachloride. The analytical wavelength was determined to be 390 nm.
View Article and Find Full Text PDFBackground: Sudden cardiac death (SCD) is a major concern in patients with hypertrophic cardiomyopathy (HCM). The American College of Cardiology/American Heart Association (ACC/AHA) and the European Society of Cardiology (ESC) have different guidelines for SCD risk stratification. Their comparative performance in diverse populations remains uncertain.
View Article and Find Full Text PDFUnited European Gastroenterol J
December 2024
Background And Aims: Predicting the treatment outcomes of biological therapies is an unmet need in Crohn's Disease. In this study, we explored the potential of serum neutrophil-related biomarkers to predict infliximab therapeutic results and disease progression in Crohn's Disease patients, over a 2-year period, in a real-world setting.
Methods: The study included 100 asymptomatic Crohn's Disease patients in the IFX maintenance phase from the prospective, observational, multicenter DIRECT study.
Background: Cancer patients face a greater risk of complications and death after contracting the SARS-CoV-2 virus. Booster doses of the COVID-19 vaccine were suggested to provide additional protection. This study aimed to assess how cancer patients' immune systems respond to the booster shots and categorize their responses.
View Article and Find Full Text PDFDeletions of the GSTT1 and GSTM1 are associated with chemical carcinogenesis and genitourinary malignancies like bladder cancer, where they correlate with increased tumor aggressiveness. In uterine cervical lesions, GSTT1 and GSTM1 deletions have also been suggested to facilitate the persistence of human papillomavirus (HPV) infection and HPV-induced carcinogenesis. This work addresses the hypothesis that GSTT1/GSTM1 deletions are associated with presence of HPV DNA and aggressiveness in penile cancer, a rare malignancy with HPV+ and HPV- subtypes.
View Article and Find Full Text PDFBiochar is an effective material for enhancing soil ecosystem services. However, the specific impacts of biochar on microbial indicators, particularly in degraded soils, remain poorly understood. This study aimed to evaluate the effects of biochar produced from cashew residues and sewage sludge, in a highly degraded soil, on microbial indicators.
View Article and Find Full Text PDFA crucial and time-consuming stage in aerogel production is the solvent exchange process for alcogel formation. This process involves multiple steps, exposing the hydrogel to ethanol solutions with increasing concentration until the equilibrium in each step. Currently, the determination of contact time between phases (hydrogel and liquid solution) is either arbitrary or based on prior studies.
View Article and Find Full Text PDFUnderstanding populations' responses to environmental change is crucial for mitigating human-induced disturbances. Here, we test hypotheses regarding how three essential components of demographic resilience (resistance, compensation and recovery) co-vary along the distinct life histories of three lizard species exposed to variable, prescribed fire regimes. Using a Bayesian hierarchical framework, we estimate vital rates (survival, growth and reproduction) with 14 years of monthly individual-level data and mark-recapture models to parameterize stochastic integral projection models from five sites in Brazilian savannas, each historically subjected to different fire regimes.
View Article and Find Full Text PDFBone tissue engineering (BTE) is an important field of research, essential in order to heal bone defects or replace impaired tissues and organs. As one of the most used additive manufacturing processes, 3D printing can produce biostructures in the field of tissue engineering for bones, orthopaedic tissues, and organs. Scaffold manufacturing techniques and suitable materials with final structural, mechanical properties, and the biological response of the implanted biomaterials are an essential part of BTE.
View Article and Find Full Text PDFWilderness Environ Med
December 2024
When dealing with drowning scenarios, time is of capital importance. In this sense, the search for innovative strategies that provide more effectiveness and safety for lifesaving professionals, as well as for bathers, is essential. The aim of this study was to systematically review the feasibility and effectiveness of unmanned aerial vehicles as a tool to assist lifeguards in performing their duties.
View Article and Find Full Text PDFResearch has evidenced that purpose in life helps to minimise the strains of providing informal care to a significant other, but little is known about whether this psychological resource influences the paths from stressors to the health outcomes of family caregiving and through which mechanisms it can exert this protective effect. This study aimed to explore the moderating role of purpose in life on the (mediated through adaptive coping) relationship between caregiver burden and psychological distress in haemodialysis caregivers. A cross-sectional study was conducted with a convenience sample of family caregivers (n = 173; M = 55.
View Article and Find Full Text PDFBiopolymers application in biomedical areas has been limited due to the physicochemical degradation that occurs using conventional processing/sterilization methods (e.g., steam heat, γ-radiation, ethylene oxide).
View Article and Find Full Text PDFIntroduction: Patients with body mass index (BMI) ≥ 50 kg/m, classified with obesity class IV/V, require complex treatments. Intragastric balloon (IGB) is a possible treatment before metabolic bariatric surgery (MBS) that may reduce peri-operative complications. This study evaluates IGB outcomes and complications before MBS in patients with Obesity IV/V, and subsequent MBS results, regarding weight loss and comorbidity resolution.
View Article and Find Full Text PDFDuchenne muscular dystrophy (DMD) is a disease that primarily affects males and causes a gradual loss of muscle strength. This results in a deterioration of motor skills and functional mobility, which can impact the performance of various occupations. Individuals with DMD often rely heavily on caregivers to assist with daily activities, which can lead to caregiver burden.
View Article and Find Full Text PDFThis study aims to examine, for each head coach (HC) replaced, the association between training intensity and physical performances obtained in games. Furthermore, the study investigated how contextual factors influence locomotor and mechanical performance association. External load variables were collected using Global Positioning System (GPS) devices across the 4 weeks and 4 games before and after the replacement in a professional adult male soccer team.
View Article and Find Full Text PDFMelanin is a complex dark pigment synthetized by the phenoloxidase enzyme laccase in Cryptococcus neoformans. In vitro, this enzyme oxidizes exogenous catecholamines to produce melanin that may be secreted or incorporated into the fungal cell wall. This pigment has multiple roles in C.
View Article and Find Full Text PDFBackground: Cervical cancer screening remains an essential preventive tool worldwide. First line high-risk Human Papillomavirus (HrHPV) genotyping became gold standard for cervical cancer screening, and has been adopted by several countries, including Portugal. Herein, we aimed to assess the early outcomes of the regional Cervical Cancer Screening Program of Northern Portugal.
View Article and Find Full Text PDFObjective: This study aimed to develop, evaluate the clinical utility, and test the psychometric properties of a new tool - the Hemodialysis Distress Thermometer (HD-DT) - designed to screen self-reported psychological distress and its sources in adults receiving hemodialysis.
Methods And Measures: focused on the process of developing and evaluating the content validity and clinical utility of the HD-DT using a stepwise mixed-methods approach; in , the measurement properties of the European Portuguese version of the HD-DT were tested against reference measures in a cross-sectional study ( = 134 people on hemodialysis); while in the HD-DT was translated and culturally adapted into American English using forward-backward translation and review by a panel of experts.
Results: Qualitative findings suggested that the HD-DT was perceived by feedback panels as practical and useful for rapidly screening psychological distress in nephrology centers.
Purpose: We propose a quantitative framework for motion-corrected T2 fetal brain measurements in vivo and validate the single-shot fast spin echo (SS-FSE) sequence to perform these measurements.
Methods: Stacks of two-dimensional SS-FSE slices are acquired with different echo times (TE) and motion-corrected with slice-to-volume reconstruction (SVR). The quantitative T2 maps are obtained by a fit to a dictionary of simulated signals.
Surfactants from detergents, when inadequately treated in sewage treatment plants, are carried away into estuaries, resulting in the contamination of aquatic environments. It is thus necessary to develop rapid and efficient techniques that are capable of effectively monitoring these pollutants. In this context, for the first time in the literature, this study reports the development and application of a digital image-based (DIB) method for the quantification of the anionic surfactant linear alkylbenzene sulfonate (LAS) in water bodies using a smartphone.
View Article and Find Full Text PDFBackground: Inflammatory bowel disease (IBD) is associated with dietary restrictions and food- and drink-driven daily life limitations. Food-related quality of life (FR-QoL) is still an under-addressed issue in IBD.
Aim: We aimed to study determinants of FR-QoL in an IBD cohort, namely objective measures of disease activity.