549,780 results match your criteria: "Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP[Affiliation]"

Quality by Design-Steered Chromatographic Separation and Identification of the Geometric Isomers of Capsiate by Reversed-Phase HPLC and LC-MS.

J Chromatogr Sci

January 2025

Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, E-32004 Ourense, Spain.

An efficient reverse-phase high-performance liquid chromatographic method, based on the design of the experiment approach, was developed for the simultaneous determination of capsiate isomers. Critical method parameters, i.e.

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Deep learning has proven capable of automating key aspects of histopathologic analysis. However, its context-specific nature and continued reliance on large expert-annotated training datasets hinders the development of a critical mass of applications to garner widespread adoption in clinical/research workflows. Here, we present an online collaborative platform that streamlines tissue image annotation to promote the development and sharing of custom computer vision models for PHenotyping And Regional Analysis Of Histology (PHARAOH; https://www.

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Multiple physiological response analyses of Chlorella vulgaris exposed to silver nanoparticles, ciprofloxacin, and their combination.

Environ Toxicol Chem

January 2025

Laboratorio de Ecotoxicología, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (UNL), Santa Fe, Argentina.

The combination of silver nanoparticles (AgNPs) and ciprofloxacin (CIP) can be considered an alternative to combat multidrug-resistant microbial infections. However, knowledge about their combined toxicity is scarce after being released in an aquatic environment. The present study evaluated the individual toxicity of AgNPs and CIP and their combined toxicity on the unicellular green microalga Chlorella vulgaris, evaluating cellular responses and conducting metabolomic analysis.

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This study explores adolescents' inherent curiosity about nature through the production of self-generated questions during a field visit to a nature-rich environment, followed by descriptive-interpretative analysis using focus groups. Utilizing cultural probes and content-free question tokens, we collected 164 valid questions produced by 36 adolescents during the field session. Biotic elements, like species, turned out to be more intriguing than abiotic elements, originating 89.

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Background: Several single race events (5 km, 10 km, half-marathon, marathon, ultra-marathon) in different countries and different years have been analyzed in multiple studies, representing the rising interest in endurance-based activity and thus physical health. With focus on participation numbers, performance or sex difference, many single study results were obtained. The running trends in a whole country covering a longer period of time and several race distances are missing so far.

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Renal nerves and hypertension contribute to impaired proximal tubule megalin-mediated albumin uptake in renovascular hypertensive rats.

Hypertens Res

January 2025

Department of Physiology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.

Proteinuria, especially albuminuria, serves as an independent risk factor for progression in cardiovascular and renal diseases. Clinical and experimental studies have demonstrated that renal nerves contribute to renal dysfunction in arterial hypertension (AH). This study hypothesizes that renal nerves mediate the mechanisms of protein endocytosis by proximal tubule epithelial cells (PTEC) and glomerular function; with dysregulation of the renal nerves contributing to proteinuria in Wistar rats with renovascular hypertension (2-kidney, 1-clip model, 2K-1C).

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Development of a broad-spectrum epitope-based vaccine against Streptococcus pneumoniae.

PLoS One

January 2025

Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh.

Streptococcus pneumoniae (SPN) is a significant pathogen causing pneumonia and meningitis, particularly in vulnerable populations like children and the elderly. Available pneumonia vaccines have limitations since they only cover particular serotypes and have high production costs. The emergence of antibiotic-resistant SPN strains further underscores the need for a new, cost-effective, broad-spectrum vaccine.

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Purpose: Physical activity (PA) is considered an alternative to mitigate the negative impacts of the COVID-19 pandemic on the sleep of older adults. The objective was to verify the association between physical activity and the sleep quality of older people in social isolation during the COVID-19 pandemic, to analyze the Health Guidelines, and suggest future studies for the post-COVID period.

Methods: This systematic review followed PRISMA recommendations, and the protocol was registered in PROSPERO (CRD 42023406471).

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Objective: Our study evaluated the prevalence of hypertension in a population of Brazilian firefighters and the association of elevated blood pressure (BP) with personal, occupational, and cardiovascular risk factors.

Design: This was a cross-sectional study.

Setting: Our study was based on health inspections of the Military Fire Brigade of the Espírito Santo State, Brazil, performed in 2019.

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Objective: Despite the Global Vaccine Action Plan's goal of at least 90% vaccine coverage for all children, Uganda has made limited progress in vaccination over the past decade. The objective of this study was to examine the subnational trends in the prevalence and inequalities in under-immunisation and zero-dose among children aged 12-23 months in Uganda.

Study Design: A retrospective national cross-sectional study.

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Objective: To carry out a situational analysis of the medication practices in Brazilian hospitals through the Medication Safety Self-Assessment for Hospitals and the factors associated with better performance in the evaluation.

Methods: This is a multicenter cross-sectional study in which the results of the application of the Medication Safety Self-Assessment for Hospitals, between 2015 and 2020, in 30 Brazilian hospitals were described. In addition, whether the institutional profile was associated with higher self-assessment scores (better performance in the evaluation) was also evaluated.

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The Role of Reflection for Continuing Professional Development of In-Service Health Care Professionals: A Narrative Inquiry in Four Health Professions.

J Contin Educ Health Prof

January 2025

Dr. Fernandez: Associate Professor, Department of Family Medicine and Emergency Medicine, Faculty of Medicine Université de Montréal, Centre-ville Montréal, Québec, Canada.

Introduction: Health care providers (HCPs) use reflection to intervene in complex, ambiguous clinical situations. Yet, there is scant evidence about the circumstances when HCPs use reflection and how they perceive reflection within their continuing professional development. We selected a narrative inquiry approach to study how HCPs perceive reflection's role in learning in four health professions.

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Background: Cisplatin is an anti-cancer drug used to treat a plethora of solid tumors. However, it is associated with dose dependent nephrotoxicity limiting its use as anticancer agent.

Objective: The current study aimed to investigate the nephroprotective effect of native Lebanese Cannabis sativa in both in vitro and in vivo mice model of cisplatin-induced nephrotoxicity.

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Thickness-dependence of the in-plane thermal conductivity and the interfacial thermal conductance of supported MoS2.

J Phys Condens Matter

January 2025

Dep. Fisica, Universidade Federal de Minas Gerais, ICEX, Av. Antonio Carlos 6627, Belo Horizonte, MG, 31270-901, BRAZIL.

Nowadays, experimental research advances in condensed matter physics are deep-rooted in the development and manipulation of nanomaterials, making it essential to explore the fundamental properties of materials that are candidates for nanotechnology. In this work, we study the dependence of the molybdenum disulfide (MoS2) Raman modes on the sample temperature and on the excitation laser power. From the correlation between these two sets of measurements, we determine the planar thermal conductivity of MoSmonolayers, bilayers, trilayers, four layers, seven layers, and eight layers.

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Background: Thyroid eye disease (TED) is the most prevalent extrathyroidal manifestation of Graves' disease (GD). Emerging evidence suggests a relationship between elevated total and LDL cholesterol levels and TED. This study aimed to investigate this correlation in the Brazilian population by analyzing data from two tertiary care centers.

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Background: Brazilian spotted fever is a tick-borne disease caused by the bacterium Rickettsia rickettsii, whose main vector in Brazil is the tick Amblyomma sculptum. Amplifying hosts are essential for the perpetuation of this bacterium in the tick population as they can be sources of infection during bacteremic periods. Recent studies demonstrated the ability of suids (Sus scrofa) to sustain populations of A.

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Vitamin D deficiency in a pediatric population with sickle cell disease.

Pediatr Hematol Oncol

January 2025

Department of Pediatrics - Division of Pediatric Hematology, Universidade Federal de São Paulo, Sao Paulo, Brazil.

Pediatric patients with sickle cell disease and vitamin D deficiency have worse clinical and laboratory outcomes. This study aims to quantify the prevalence of vitamin D deficiency in this population and identify possible risk factors for hypovitaminosis D by performing a cross-sectional study with children aged 3-18 years old with sickle cell disease. Sixty patients were evaluated, with a mean age of 10.

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Purpose: Cancer constitutes a significant global health challenge, with projections indicating a continued increase in its prevalence in the foreseeable future. This trend is particularly pronounced in Latin America (LATAM), where the cancer burden has increased substantially over the coming decades. Concurrently, nursing, which represents the largest segment of the health care workforce globally, is important for addressing the multifaceted challenges posed by cancer care, particularly in low- and middle-income countries (LMICs).

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Purpose: The availability of drugs and national public policies for patients with rare cancers, including sarcomas, varies in different parts of the world.

Methods: In this manuscript, we have conducted a comprehensive analysis to evaluate rare cancer policies in Latin American countries' national policy documents. Additionally, we have reviewed the approvals for sarcoma drugs in selected Latin American countries and compared them with US Food and Drug Administration (FDA) and European Medicines Agency (EMA) approvals.

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Objective: Oculoauriculovertebral spectrum (OAVS) encompasses abnormalities on derivatives from the first and second pharyngeal arches including macrostomia, hemifacial microsomia, micrognathia, preauricular tags, ocular, and vertebral anomalies. We present genetic findings on a 3-generation family affected with macrostomia, preauricular tags and ptosis following an autosomal dominant pattern.

Design: We generated whole-genome sequencing data for the proband, affected father, and unaffected paternal grandmother followed by Sanger sequencing on 23 family members for the top candidate gene mutations.

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Merkel cell carcinoma (MCC) is an uncommon aggressive neoplasm, usually arising in sun-exposed skin of the head and neck. By immunohistochemistry, KRT20 and MCPyV positivity are found in about 90% and 80% of MCCs, respectively. Noteworthy, viral status in lip/oral cavity MCCs is poorly known.

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Rhamnogalacturonan promotes intestinal mucosal repair through increased cell migration.

Am J Physiol Gastrointest Liver Physiol

January 2025

Department of Physiology and Pharmacology, Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.

Mucosal healing is the primary goal for Inflammatory Bowel Diseases (IBD) treatment. We previously showed the direct beneficial effects of rhamnogalacturonan (RGal) on intestinal epithelial barrier function. Here, we aimed to evaluate the effect of RGal in intestinal epithelial wound healing.

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Forestry bill threatens the Amazon's water cycle.

Science

January 2025

Escola de Artes, Ciências, e Humanidades, Universidade de São Paulo, São Paulo, SP, Brazil.

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Advancements and Prospects in Nanorobotic Applications for Ophthalmic Therapy.

ACS Biomater Sci Eng

January 2025

Instituto de Engenharias e Desenvolvimento Sustentável, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, Ceará CEP 62790-970, Brazil.

This study provides a bibliometric and bibliographic review of emerging applications of micro- and nanotechnology in treating ocular diseases, with a primary focus on glaucoma. We aim to identify key research trends and analyze advancements in devices and drug delivery systems for ocular treatments. The methodology involved analyzing 385 documents indexed on the Web of Science using tools such as VOSviewer and Bibliometrix.

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