555,394 results match your criteria: "Brazil; Hospital das Clínicas (HCFMUSP)[Affiliation]"
Rev Esp Enferm Dig
March 2025
General Practitioner, University of Americas, Brazil.
Intestinal polyps have been described in association with chronic schistosomiasis, and must be differentiated from malignant tumors and appropriately managed. This uncommon condition may be very rarely detected in people from non-endemic areas of this zoonosis, who were occasionally infected during some travel period. The lesions are more frequently described in men, and predominating in the colon.
View Article and Find Full Text PDFFront Fungal Biol
February 2025
Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
The emerging fungal pathogen () has been increasingly detected in environmental and animal samples, although studies in this regard are still scarce, especially in fisheries contexts. This study reports the first-time detection of in a commercially relevant fish species belonging to the Sciaenidae family ( sp.), indicating its potential emergence as a pathogen in Brazil.
View Article and Find Full Text PDFFront Bioeng Biotechnol
February 2025
Embrapa Genetic Resources and Biotechnology, National Institute of Science and Technology in Synthetic Biology, Brasilia, Brazil.
Serine integrases (Ints) have gained prominence and have been extensively used in Synthetic Biology due to their ability to modify DNA sequences. Ints are recombinases encoded by the phage genome and have been used to unidirectionally catalyze an insertion, excision, or inversion of a specific DNA sequence between the two attachment sites () (bacterial attachment site) and (phage attachment site). The entire process is highly specific and accurate; therefore, Ints are widely used in genetic engineering and have been extensively studied due to their unique site-specific recombination properties and potential genome editing applications.
View Article and Find Full Text PDFCureus
March 2025
Department of Pulmonology, Federal University of São Paulo, São Paulo, BRA.
Objective: This retrospective study aimed to determine the prevalence of progression in fibrotic interstitial lung disease (ILD) and the findings at diagnosis most associated with progression after two years of follow-up in a large Brazilian cohort.
Methods: This was a retrospective multicenter observational study in Brazil. Progression was defined after two years of follow-up.
Front Vet Sci
February 2025
Curso de Pós-Graduação em Produção e Sanidade Animal, Instituto Federal Catarinense, Araquari, SC, Brazil.
Introduction: This study evaluated vaccination and prophylactic use of antimicrobials as strategies to prevent Porcine Proliferative Enteropathy (PPE) during nursery and growth-finishing phases.
Methods: Three hundred weaned piglets (~ 29 days old) were distributed into groups: NVMED - no vaccinated against but in-feed medicated with antimicrobials (amoxicillin, florfenicol, lincomycin, spectinomycin and tilmicosin); VMED - vaccinated and in-feed medicated; VNMED - vaccinated but no in-feed medicated. Piglets were vaccinated at weaning (Porcilis Ileitis, MSD Animal Health).
Front Med (Lausanne)
February 2025
Department of Hematology, Universidade Federal de São Paulo/Escola Paulista de Medicina, São Paulo, Brazil.
Background: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare clonal hematopoietic stem cell disease characterized by acquired abnormalities in the phosphatidylinositol glycan class A () gene.
Methods: This study analyzed gene using polymerase chain reaction (PCR) followed by Sanger sequencing of 31 Brazilian patients with PNH, including 23 with classical PNH and 8 with subclinical PNH (aplastic anemia and a PNH clone).
Results: A diverse spectrum of acquired variants was identified, encompassing insertions, deletions, and single-base substitutions.
EJHaem
April 2025
Centro Infantil Boldrini Campinas São Paulo Brazil.
Biased VDJ recombination has been previously described in childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL), although its causes are not yet fully understood. This study assesses differential features in 565 clonotypes from BCP-ALL molecular subsets against 560 clonotypes from bone marrow donors. Leukemia clonotypes were enriched for segments in the KMT2A rearranged and B-other subtypes, while was enriched in TCF3::PBX1.
View Article and Find Full Text PDFFront Hum Neurosci
February 2025
Laboratory of Medical Cannabis and Psychedelic Science, Universidade Federal da Integração Latino-Americana, Foz do Iguaçu, Brazil.
NPJ Drug Discov
March 2025
Department of Pediatrics, University of California, San Diego, La Jolla, CA USA.
Identification of novel drug targets is a key component of modern drug discovery. While antimalarial targets are often identified through the mechanism of action studies on phenotypically derived inhibitors, this method tends to be time- and resource-consuming. The discoverable target space is also constrained by existing compound libraries and phenotypic assay conditions.
View Article and Find Full Text PDFHeliyon
February 2025
São Paulo State University (UNESP), School of Dentistry, Araraquara, SP, Brazil.
The growing global threat posed by microorganisms resistant to conventional antimicrobials underscores the urgent need for novel agents to control infections. The aim of this study was to evaluate the antimicrobial activity and biocompatibility of alpha-silver tungstate (α-AgWO) nanoparticles (NPs) synthesized by the ultrasonic method. The NPs were characterized, and their antimicrobial activity was assessed against , , and using the broth microdilution method, determining the minimum inhibitory concentration (MIC) and minimum bactericidal/fungicidal concentration (MBC/MFC).
View Article and Find Full Text PDFJAC Antimicrob Resist
April 2025
Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK.
Antimicrobial resistance (AMR) is a growing global health threat, which is increasingly quantified in terms of its human health and economic burden. In this article, we highlight that for policy and planning purposes the social burden of AMR is as important to attend to as health and economic burdens, requiring systematic consideration and measurement of multiple dimensions. We provide a conceptual and empirical overview of four dimensions of the social burden of AMR: the distribution of AMR among and between populations; the lived experiences of AMR by patients and carers; how and by whom AMR interventions are shouldered; and how AMR can change society.
View Article and Find Full Text PDFBackground: The alarming rise in dengue cases and fatalities worldwide necessitates an in-depth analysis of essential public health functions (EPHFs) to fortify the resilience of health systems in the face of upcoming surges. This study focuses on the resilience of Brazil's health system in managing dengue from 2010 to 2024, leveraging machine learning techniques to correlate EPHF variables with dengue outcomes.
Methods: Utilizing public data from DATASUS and IBGE, we evaluated indicators such as healthcare workforce, health facilities, and dengue-specific data.
Anal Methods
March 2025
Universidade Federal Fluminense, Instituto de Química, Campus do Valonguinho, 24020-150, Niterói, RJ, Brazil.
The performance of Raman spectroscopy (RS) has improved in recent years due to the significant advantages of its use in various fields, such as archaeology, medicine, foods, and forensics. An aspect of great relevance in forensic investigation is preserving criminal evidence, and nondestructive techniques for analysis are needed. RS has great potential for characterizing pen inks in questioned documents, and it has even been considered promising for trace intersection and dating investigations.
View Article and Find Full Text PDFAesthet Surg J
March 2025
Department of Oculoplastic Surgery, Universidade Federal de Goiás, Goiânia, GO, Brazil.
Background: Tranexamic acid (TXA) is an antifibrinolytic that is regularly used to reduce bleeding in surgical specialties.
Objectives: To assess the effects of subcutaneous TXA in oculofacial plastic surgeries, with the hypothesis that TXA reduces postoperative ecchymosis and edema.
Methods: A prospective, randomized, double-blind, split-face study.
Dent Traumatol
March 2025
Department of Restorative Dentistry, Federal University of Ceará, Fortaleza, Brazil.
The natural dynamics of the jaw during physical activity and its physiological mechanisms are not fully understood. However, teeth clenching during certain sports activities may be associated with increased strength, power, flexibility, and performance. This behavior is termed awake bruxism (AB) and can lead to intraoral damage, highlighting the importance of patient education and management.
View Article and Find Full Text PDFInt J Retina Vitreous
March 2025
Department of Ophthalmology, University of Sao Paulo, Sao Paulo, Brazil.
Purpose: This study aimed to evaluate the surgical management and long-term follow-up of hypotony related to post-vitrectomy peripheral circumferential retinal detachment (PCD).
Methods: Eyes diagnosed with hypotony secondary to PCD after pars plana vitrectomy were retrospectively reviewed. The patient demographic data, complications, management, and treatment outcomes were collected and analyzed.
Crit Care
March 2025
Keenan Centre for Biomedical Research, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada.
Rationale: There are several approaches to select the optimal positive end-expiratory pressure (PEEP), resulting in different PEEP levels. The impact of different PEEP settings may extend beyond respiratory mechanics, affecting pulmonary hemodynamics.
Objectives: To compare PEEP levels obtained with three titration strategies-(i) highest respiratory system compliance (C), (ii) electrical impedance tomography (EIT) crossing point; (iii) positive end-expiratory transpulmonary pressure (P)-in terms of regional respiratory mechanics and pulmonary hemodynamics.
Mycoses
March 2025
Faculdade de Ciências da Saúde (FCS), Rodovia Dourados/Itahum, Federal University of Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil.
TNF-α inhibitors, including infliximab, adalimumab and etanercept, are used to treat various inflammatory diseases, such as arthritis, psoriasis and ankylosing spondylitis. However, these treatments may predispose patients to fungal infections, including histoplasmosis, candidiasis and aspergillosis. In this study, we systematically reviewed case reports to critically examine the correlations between anti-TNF-α therapies and the occurrence of invasive and superficial fungal infections.
View Article and Find Full Text PDFBiol Direct
March 2025
Laboratory of Molecular Biology, Cluster Plant Developmental Biology, Wageningen University and Research, 6708 PB, Wageningen, The Netherlands.
Background: Tulipa gesneriana reproduces vegetatively by the development of bulb clusters from axillary meristems in the scales of a mother bulb. While part of the daughter bulbs in a cluster develop into large, flowering bulbs, others stay small and vegetative under the same environmental conditions. This study aims to investigate how these different developmental fates are orchestrated.
View Article and Find Full Text PDFBMC Public Health
March 2025
Department of Nursing, Federal University of Paraíba, Paraíba, Brazil.
Background: The Infant Mortality Rate assesses the deaths occurring in children under one year of age and serves as an important health indicator in mapping the living conditions of a given society. The aim of the present study is to evaluate the epidemiological trends of infant mortality in Brazil from 2000 to 2020, based on the most prevalent chapters of the International Classification of Diseases.
Methods: This is an ecological and retrospective study conducted using secondary data collection.
Nat Neurosci
March 2025
Novateur Research Solutions, Ashburn, VA, USA.
Sci Rep
March 2025
Research Group on Environmental Applications of Advanced Oxidation Processes, Department of Sanitary and Environmental Engineering, The Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
Water pollution by metals and metalloids promotes toxic effects to aquatic biota especially in mining regions. Environmental legislation applied to protect aquatic life from the toxicity of metals relies on the definition of protective values (PVs) for each compound. Among methods used to define PVs, Species Sensitivity Distribution (SSD) curves enable the derivation of the Predicted No Effect concentration (PNEC).
View Article and Find Full Text PDFSci Rep
March 2025
Institute of Mathematics, Fraser Noble Building, University of Aberdeen, King's College, Aberdeen, AB24 3FX, UK.
Nat Commun
March 2025
Ecology and Biodiversity, Utrecht University, Utrecht, The Netherlands.
Wood density is a critical control on tree biomass, so poor understanding of its spatial variation can lead to large and systematic errors in forest biomass estimates and carbon maps. The need to understand how and why wood density varies is especially critical in tropical America where forests have exceptional species diversity and spatial turnover in composition. As tree identity and forest composition are challenging to estimate remotely, ground surveys are essential to know the wood density of trees, whether measured directly or inferred from their identity.
View Article and Find Full Text PDFNat Commun
March 2025
Climate Central Inc., Princeton, NJ, USA.
Baleen whales migrate from productive high-latitude feeding grounds to usually oligotrophic tropical and subtropical reproductive winter grounds, translocating limiting nutrients across ecosystem boundaries in their bodies. Here, we estimate the latitudinal movement of nutrients through carcasses, placentas, and urea for four species of baleen whales that exhibit clear annual migration, relying on spatial data from publicly available databases, present and past populations, and measurements of protein catabolism and other sources of nitrogen from baleen whales and other marine mammals. Migrating gray, humpback, and North Atlantic and southern right whales convey an estimated 3784 tons N yr and 46,512 tons of biomass yr to winter grounds, a flux also known as the "great whale conveyor belt"; these numbers might have been three times higher before commercial whaling.
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