547,827 results match your criteria: "Brazil; Brazil University - (UB)[Affiliation]"
Front Biosci (Elite Ed)
December 2024
Polytechnic School, University of Vale do Itajaí (Univali), Itajaí, SC 88302-202, Brazil.
Background: Enhanced biological phosphorus removal (EBPR) systems utilize phosphorus-accumulating organisms (PAOs) to remove phosphorus from wastewater since excessive phosphorus in water bodies can lead to eutrophication. This study aimed to characterize a newly isolated PAO strain for its potential application in EBPR systems and to screen for additional biotechnological potential. Here, sequencing allowed for genomic analysis, identifying the genes and molecules involved, and exploring other potentials.
View Article and Find Full Text PDFFront Biosci (Elite Ed)
December 2024
Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, AM 69067-005, Brasil.
Background: Actinobacteria are major producers of antibacterial and antifungal metabolites and are growing their search for substances of biotechnological interest, especially for use in agriculture, among other applications. The Amazon is potentially rich in actinobacteria; however, almost no research studies exist. Thus, we present a study of the occurrence and antifungal potential of actinobacteria from the rhizosphere of , a native South American plant and one that is economically useful in the whole of the Amazon.
View Article and Find Full Text PDFFront Biosci (Elite Ed)
November 2024
Advanced Institute of Technology and Innovation (IATI), 50751-310 Recife, Pernambuco, Brazil.
Background: This study aimed to produce, characterize, and apply a biosurfactant as a bioremediation tool for oil-contaminated coastal environments.
Methods: The biosurfactant was produced in a medium containing 5.0% corn steep liquor and 1.
Background: Antiplatelet drugs, such as clopidogrel, ticagrelor, prasugrel, and acetylsalicylic acid, may be associated with a risk of adverse events (AEs). Vanessa's Law was enacted to strengthen regulations to protect Canadians from drug-related side effects (with mandatory reporting of serious adverse events [SAEs]).
Objective: To determine whether Vanessa's Law has led to an increase in SAE reporting among antiplatelet users.
Iran J Parasitol
January 2024
Parasitology Laboratory, Department of Microbiology and Parasitology, Federal University of Pelotas, Pelotas, Brazil.
Background: Avian trichomoniasis is an important disease that causes bird mortality, both wild and captive, around the world. This study evaluated the in vitro cytotoxicity, antioxidant, and antiparasitic activity of citral (3.7-Dimetil-2.
View Article and Find Full Text PDFFront Oncol
December 2024
Gynecologic Oncology Department, Barretos Cancer Hospital, São Paulo, Brazil.
Purpose: Molecular classification of endometrial cancer (EC) has emerged as a key approach to individualize therapy and define prognostic outcomes. This study aimed to implement the traditional ProMisE classification in a Brazilian population, compared with a molecular setting of ProMisE biomarkers, and evaluate its impact on patients' prognosis.
Patient And Methods: A prospective cohort of 114 patients with primary EC treated at Barretos Cancer Hospital (BCH) between October 2020 and December 2022 was conducted.
ACS Appl Electron Mater
December 2024
James Watt School of Engineering, University of Glasgow, G12 8QQ Glasgow, Scotland, U.K.
Electronics based on natural or degradable materials are a key requirement for next-generation devices, where sustainability, biodegradability, and resource efficiency are essential. In this context, optimizing the molecular chemical structure of organic semiconductor compounds (OSCs) used as active layers is crucial for enhancing the efficiency of these devices, making them competitive with conventional electronics. In this work, honey-gated organic field-effect transistors (HGOFETs) were fabricated using four different perylene derivative films as OSCs, and the impact of the chemical structure of these perylene derivatives on the performance of HGOFETs was investigated.
View Article and Find Full Text PDFRev Bras Ortop (Sao Paulo)
November 2024
Departamento de Ciências da Saúde, Centro de Ciências Biológicas e da Saúde (CCBS), Universidade Federal Rural do Semi-Árido (Ufersa), Mossoró, RN, Brasil.
Alkaptonuria (AKU) is a rare genetic condition resulting from a deficiency in the homogentisic acid oxidase enzyme, which is produced by the liver and kidneys, that interferes with the metabolism of the amino acids phenylalanine and tyrosine. Although it may not cause symptoms, AKU can lead to ochronosis, the abnormal accumulation in body tissues of a pigment called alkapton. Over time, this pigment accumulation in the joints may result in secondary osteoarthritis known as ochronotic arthropathy, the most debilitating form of the disease.
View Article and Find Full Text PDFTransgend Health
December 2024
Scientific Computing Program, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.
Purpose: Epidemiologic studies suggest that the transgender population has a higher burden of cardiovascular (CV) disease. We aimed to assess CV risk and investigate the relationship between estradiol (E2) or ethinylestradiol (EE) use and carotid intima media thickness (cIMT) in transgender women.
Methods: This is a cross-sectional analysis nested into a transgender-specific cohort in Rio de Janeiro, Brazil, from August 2015 to February 2018.
Transgend Health
December 2024
Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
Purpose: Transgender-based discrimination is associated with poor mental health, unemployment, and poverty. and transgender women (trans women) frequently experience transgender-based discrimination, but associated factors are understudied. Our objective was to identify the factors associated with transgender-based discrimination among trans women from Brazil.
View Article and Find Full Text PDFGlob Heart
December 2024
University of Milano, Milano, Italy.
Health Care Sci
December 2024
School of Computer Science and Engineering, Vellore Institute of Technology Vellore India.
Background: The global impact of the highly contagious COVID-19 virus has created unprecedented challenges, significantly impacting public health and economies worldwide. This research article conducts a time series analysis of COVID-19 data across various countries, including India, Brazil, Russia, and the United States, with a particular emphasis on total confirmed cases.
Methods: The proposed approach combines auto-regressive integrated moving average (ARIMA)'s ability to capture linear trends and seasonality with long short-term memory (LSTM) networks, which are designed to learn complex nonlinear dependencies in the data.
Front Cell Infect Microbiol
December 2024
Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil.
Pathogenic are spirochetes that cause leptospirosis, a worldwide zoonotic disease. Leptospirosis affects humans and animals, with approximately 1 million human infections and 60,000 deaths per year. The diversity of leptospiral strains and serovars allied to the fact that pathogenesis is not yet fully understood, make the development of an effective vaccine against leptospirosis a challenge.
View Article and Find Full Text PDFCase Rep Med
December 2024
Department of Gastroenterology, Gastrocentro Natal, Natal, Rio Grande do Norte, Brazil.
The case involves a 63-year-old hypertensive man, taking antihypertensive medication (olmesartan) for the previous two years, who sought medical attention due to voluminous diarrhea, with several episodes per day and weight loss of 10 kg. He was submitted to a series of diagnostic procedures without elucidation and empirical treatment with unsuccessful outcome. After hospitalization for clinical stabilization and for presenting with duodenal atrophy, obtained by duodenal biopsy associated with negative markers for celiac disease, the patient was diagnosed with suspected olmesartan-induced enteropathy, showing rapid improvement of diarrhea after the drug was withdrawn, with weight regain in 6 months and normalization of the duodenal histological picture after 10 months.
View Article and Find Full Text PDFCureus
November 2024
CISNE Spine Academy, Star Medica Hospital, Autonomous University of Chihuahua, Chihuahua, MEX.
Study Design: This is a cross-sectional survey.
Objectives: This study aimed to evaluate the availability and knowledge of navigation technologies for educational purposes and patient management in spine surgeons in Latin America.
Methods: A cross-sectional study was conducted among Latin American Spine Association members using a comprehensive 16-question survey to evaluate their knowledge and practices regarding navigation in spinal surgery.
Front Reprod Health
December 2024
Bureau of Global Health Security and Diplomacy, President's Emergency Plan for AIDS Relief (PEPFAR), Office of Program Impact, Monitoring, and Epidemiology (PRIME), U.S. Department of State, Washington, DC, United States.
Background: In 2023, an estimated 1.3 million people newly acquired HIV. In the same year, 3.
View Article and Find Full Text PDF3D Print Addit Manuf
December 2024
Materials Science and Technology Center (CCTM), Nuclear, and Energy Research Institute (IPEN), University of São Paulo (USP), São Paulo, São Paulo, Brazil.
This study describes a 3D fused deposition modeling (FDM) printing process using a graphene-impregnated polylactic acid (G-PLA) filament to create a new type of rigid, plastic, nonconductive, and anticorrosion layer. Therefore, the possibility of 3D printing a plastic layer using FDM methods is demonstrated herein. A commercial magnet such as N35 NdFeB can be used to produce an efficient shielding film by additive manufacturing.
View Article and Find Full Text PDFTransl Anim Sci
December 2024
Department of Animal Science, University of Lavras, Lavras, 37200-900, Brazil.
The snaplage residue presents itself as a potential alternative roughage source in finishing systems, owing to its high fiber concentration which aids in maintaining rumen health. Nevertheless, the performance of animals will hinge on both the allowance and the nutritive value it offers. This study aimed to evaluate different stocking rates of heifers grazing snaplage residue as an exclusive source of fiber on finishing phase performance.
View Article and Find Full Text PDFFront Hum Neurosci
December 2024
Neuroscience Division, Department of Neurology and Neurosurgery, Escola Paulista de Medicina, Federal University of São Paulo, São Paulo, Brazil.
Spinal cord injury (SCI) can cause significant motor, sensory, and autonomic dysfunction by disrupting neural connections. As a result, it is a global health challenge that requires innovative interventions to improve outcomes. This review assesses the wide-ranging impacts of SCI and focuses on the laparoscopic implantation of neuroprosthesis (LION) as an emerging and promising rehabilitation technique.
View Article and Find Full Text PDFCase Rep Oncol Med
December 2024
Pathology Department, Oncoclinicas Group, São Paulo, Brazil.
Li-Fraumeni syndrome (LFS) is one of the most common hereditary cancer predisposition syndromes in Brazil. The high frequency of the syndrome is due to a founding variant (R337H) in the country. LFS is characterized by a wide variety of malignant phenotypes.
View Article and Find Full Text PDFGlob Chang Biol
January 2025
Universidade Tecnológica Federal Do Paraná, Campo Mourao, Brazil.
Studies on climate change need to make projections based on predicted scenarios. One source of variability in these projections is the choice of general circulation models (GCMs). There is a lack of consensus on how to choose the GCMs.
View Article and Find Full Text PDFDent Mater
December 2024
Graduate Program in Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, Porto Alegre 2492, Brazil; Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, Porto Alegre 2492, Brazil. Electronic address:
Objectives: To evaluate the self-etch bonding potential of universal adhesive systems with varying acidic compositions by analyzing the wettability properties, topographical change, and microshear bond strength (µSBS) to enamel.
Methods: Eight universal adhesives were tested: All-Bond Universal (Bisco), Ambar Universal (FGM), Gluma Bond Universal (Kulzer), OptiBond Universal (Kerr), Peak Universal Bond (Ultradent), Prime&Bond Universal (Dentsply), Singlebond Universal (3 M ESPE), and Tetric N-Bond Universal (Ivoclar). Bovine incisors were prepared and treated with each adhesive according to the manufacturer's instructions.
Environ Pollut
December 2024
São Paulo State University (Unesp), Environmental Studies Center (CEA), Rio Claro, SP, Brazil; Postgraduate Program in Geosciences and Environment, Institute of Geosciences and Exact Sciences (IGCE), Rio Claro, SP, Brazil. Electronic address:
Seabirds are particularly susceptible to potentially toxic elements (PTEs) due to the tendency of biomagnification of some elements, thus serving as potential bioindicators for assessing environmental health. In this study, we analyzed As, Cd, Cu and Zn concentrations in liver samples from nine seabird species (51 specimens) collected along the Southwestern Atlantic Ocean. Results revealed substantial variations in PTE concentrations among species, with taxonomic orders influencing accumulation patterns.
View Article and Find Full Text PDFEnviron Pollut
December 2024
São Paulo State University (UNESP), School of Engineering Bauru, Department of Civil and Environmental Engineering, Bauru, SP, Brazil. Electronic address:
Unsafe water has severe implications for human health. Among sanitary wastewater treatment technologies, those that treat effluent in the most natural way possible (avoiding chemicals) need to be employed to minimize environmental damage upon release. Microalgae-based systems are one of the more economical and sustainable methods.
View Article and Find Full Text PDFAnn Vasc Surg
December 2024
Division of Vascular and Endovascular Surgery, Hospital do Servidor Público Estadual de São Paulo, Brazil.
Objective: This study aimed to determine the outcomes of survival, endoleaks, reinterventions, and perioperative mortality rate (PMR) in patients with AAIA receiving endovascular or open surgical repair with respect to sex, with two groups of patients being evaluated: male and female.
Methods: This was a prospective, single-centered, consecutive cohort study of patients with AAIA who underwent endovascular treatment or open surgical repair regarding gender. Two groups of patients were evaluated: the male group and the female group.