1,523 results match your criteria: "Federal University of Rio De Janeiro (Ufrj)[Affiliation]"

Background: In patients with chronic kidney disease (CKD), trimethylamine n-oxide (TMAO) accumulation exacerbates inflammation and contributes to oxidative stress. These complications are putatively linked to the development of cardiovascular diseases. Despite the known associations, the variation in TMAO plasma levels across different CKD stages and dialysis modalities remains underexplored.

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Since 2006, simple outdoor gyms have been installed on public squares all over Brazil. From the beginning, they were mainly conceived as for use by older people - especially women - within an international movement of 'healthy cities'. Based on an ethnography in Rio de Janeiro, our aim is to show in particular the politico-commercial dimensions of the fitness equipment.

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Effect of nutrition warning, brand, and claims on the perception of product healthiness by Brazilian consumers.

Food Res Int

February 2025

Embrapa Food Technology, Av. das Américas, 29501, CEP 23.020-470 Rio de Janeiro, RJ, Brazil.

In response to the rise of Non-communicable Diseases, public policies, such as Front-of-package (FOP) nutrition labeling, have been implemented to clarify information on food labels and promote healthier eating habits. Brazil adopted black magnifier warning label in 2020, which consists of a black rectangle with a magnifier glass followed by the expression "High in" for three critical nutrients: added sugar, saturated fat and/or sodium. This study aims to evaluate the effect of black magnifier warning label, brand, and claims on Brazilian consumers' perceived healthiness.

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Tocotrienols, isomers of vitamin E, may provide an effective nutritional strategy to mitigate common cardiovascular risks such as dyslipidemia, inflammation, and oxidative stress in patients with chronic kidney disease (CKD). This double-blind, placebo-controlled, randomized clinical trial aimed to evaluate the effects of a tocotrienol-rich fraction (TRF) supplementation (300 mg/day) on oxidative stress and inflammatory markers, including transcription factors in nondialysis (ND) and hemodialysis (HD) CKD patients for three months. Interleukin-6, tumor necrosis factor- (IL-6 and TNF-), C-reactive protein (CRP), lipid peroxidation, biochemical parameters, and transcription factors such as NRF2 and NF-B mRNA expression were evaluated.

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Background: Delays in obstetric care are associated with adverse maternal outcomes, while long-distance travel for delivery is associated with high neonatal mortality and increased maternal morbidity. Distance and travel time are key components of geographic accessibility to health services and important risk indicators for maternal and neonatal care. This study evaluated whether the Brazilian Unified Health System (SUS) has been geographically accessible in providing hospital childbirth services, over time.

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The chemical functionalization of cellulose nanofibrils (CNFs) was carried out using 2-aminoethyl hydrogen sulfate as the reagent under various experimental conditions via a bimolecular nucleophilic substitution (S2) reaction. The functionalized CNFs were characterized by Fourier transform infrared spectroscopy-attenuated total reflectance. The results indicate that the chemical modification was successful, as evidenced by the presence of a band at 1540 cm, corresponding to the N-H bond of the amine group.

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Fad diets for non-dialysis chronic kidney disease patients: Can "the miracle diet" be a threat?

Nutrition

December 2024

Graduate Program in Medical Sciences, Federal Fluminense University (UFF), Niteroi, Rio de Janeiro, Brazil; Graduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil; Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address:

In the pursuit of an effortless "miracle cure", there has been a significant increase in the proliferation of fad diets. These diets generally exclude a food group or macronutrients and may also restrict energy intake; they become popular quickly but often lack substantial scientific evidence to support their efficacy and safety. They only show short-term results rather than promoting a lifestyle change.

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Women's health is related to several factors that include physical, mental, and reproductive health. Additionally, the vaginal microbiota modulation performs a fundamental role in the regulation of physiological homeostasis and dysbiosis, which provides us a potential overview of the use of different biotic agents and their implications for female health. The objective of this work was propitiated insights and conception about the influence of probiotics, prebiotics, synbiotics, and postbiotics as adjuvants for prevention/treatment on the main infections that can affect women's health.

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Aim: This study aimed to evaluate the effects of chronic consumption of two sugar-sweetened carbonated soft drinks - one containing caffeine (Coca-Cola®) and one without (Sprite®) - on the progression of periapical lesions and the levels of pro-inflammatory cytokines in rats.

Methodology: Twelve Wistar rats were divided into three groups (n = 4): Control group, Coca-Cola group and Sprite group. The rats in Coca-Cola and Sprite groups were given ad libitum access to their respective soft drinks for 3 months, while the Control group received filtered water.

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Background: Diabetes mellitus, a metabolic disease characterized by high blood glucose levels, has increased dramatically in recent years, prompting the need for more affordable diagnoses and treatments.

Objective: This study aimed to conduct a brief historical and theoretical review on the development of insulin.

Methods: Scientific and technological data have been retrieved and analyzed with a focus on the development of the active pharmaceutical ingredient insulin and insulin-based medicines.

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Aim: This study aimed to explore the possible bidirectional interrelations between fructose-induced metabolic syndrome (MS) and apical periodontitis (AP).

Methodology: Twenty-eight male Wistar rats were distributed into four groups (n = 7, per group): Control (C), AP, Fructose Consumption (FRUT) and Fructose Consumption and AP (FRUT+AP). The rats in groups C and AP received filtered water, while those in groups FRUT and FRUT+AP received a 20% fructose solution mixed with water to induce MS.

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Dietary Bioactive Compounds and Human Health: The Role of Bioavailability.

Nutrients

December 2024

Analytical and Molecular Laboratorial Center (CLAn), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil.

The relationship between dietary bioactive compounds and human health has generated significant interest among members of the scientific community and the general public [...

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Sharka disease, caused by the plum pox virus (PPV), negatively impacts stone fruit production, resulting in economic losses. It has been demonstrated that grafting the almond ( (Miller) D.A.

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Congenital heart defects (CHDs) are the most common congenital defect, occurring in approximately 1 in 100 live births and being a leading cause of perinatal morbidity and mortality. Of note, approximately 25% of these defects are classified as critical, requiring immediate postnatal care by pediatric cardiology and neonatal cardiac surgery teams. Consequently, early and accurate diagnosis of CHD is key to proper prenatal and postnatal monitoring in a tertiary care setting.

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This comprehensive overview of the historical milestones in cell culture underscores key breakthroughs that have shaped the field over time. It begins with Wilhelm Roux's seminal experiments in the 1880s, followed by the pioneering efforts of Ross Granville Harrison, who initiated groundbreaking experiments that fundamentally shaped the landscape of cell culture in the early 20th century. Carrel's influential contributions, notably the immortalization of chicken heart cells, have marked a significant advancement in cell culture techniques.

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Food insecurity (FI) is a persistent issue in Brazil, with significant disparities existing across the country's macroregions. This study investigated the food acquisition locations and types of foods purchased at different levels of FI, utilizing data from 57,920 households in the 2017-2018 Brazilian Household Budget Survey. Food acquisition locations were grouped into supermarkets, small markets, street fairs/fruit and vegetable stores/public markets, and others.

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Therapeutic Potential of Dimethyl Fumarate for the Treatment of High-Fat/High-Sucrose Diet-Induced Obesity.

Antioxidants (Basel)

December 2024

Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho 373, bloco F, 3° floor, room 301, Cidade Universitária, Rio de Janeiro CEP 21941-902, RJ, Brazil.

Obesity is characterized by an imbalance between energy intake and expenditure that triggers abnormal growth of adipose tissues. Dimethyl fumarate (DMF) and its primary active metabolite, monomethyl fumarate (MMF), are Nrf2 activators and have been recognized as strategic antioxidants. This study aimed to evaluate the potential of MMF and DMF to interfere with adipogenesis and obesity, and identify the molecular mechanisms involved.

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The Amazon rainforest is renowned for its biodiversity and as a reservoir of edible and medicinal plants. The phytochemicals in murici and taperebá fruits serve as natural antioxidants, contributing to cultural preservation, ecosystem protection, and economic opportunities. However, limited scientific research on their composition and health benefits hinders their recognition as functional foods.

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A scoping review of the motor impairments in autism spectrum disorder.

Neurosci Biobehav Rev

January 2025

Laboratory of Cognitive Neurophysiology (LabNeuro), Institute of Biological Sciences, Department of Biophysics and Physiology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil; Post-Graduation Program in Rehabilitation Sciences and Physical-Functional Performance, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil. Electronic address:

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder mainly defined by impairments in communication and socialization. Although motor symptoms are not typically considered central to the disease, their high frequency and early onset have been recurrently reported in the literature. Therefore, this scoping review provides a broad description of these motor impairments across all ages, as well as a discussion of their relevance and relation to other clinical aspects of ASD.

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Inter-island variability in trace elements and trophic ecology of Brown Booby (Sula leucogaster) in the South Atlantic.

Environ Pollut

January 2025

Olaf Malm Laboratory of Environmental Studies (LEA-OM), Carlos Chagas Filho Biophysics Institute (IBCCF), Federal University of Rio de Janeiro (UFRJ), 21941-902, Rio de Janeiro, Brazil; Laboratory of Oceanology, Freshwater and Oceanic Sciences Unit of Research (FOCUS), University of Liege, Belgium.

This study investigates essential (Mg, Ca, Fe, Mn, Cu, Zn, Se, Ni) and non-essential (Li, Be, Cr, Rb, Sr, Cs, Cd, Sn, Ba, and Pb) element concentrations and stable isotope (δC, δN, δS) compositions in feathers of Brown Boobies (Sula leucogaster) from three distinct Atlantic islands: the Archipelagos of Saint Peter and Saint Paul (SPSP), Abrolhos, and Cagarras. We aimed to investigate the ecological and environmental factors influencing these seabird populations and assess potential variations in contaminant exposure and dietary habits based on location, sex, and maturity stages. Our finding revealed significant geographical differences in trace element concentrations.

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From Hippocrates to the Ages of Technology: A Narrative Review of the Evolution of the doctor-patient Relationship.

Trends Psychiatry Psychother

January 2025

Delete Lab-Digital Detox and Conscious Use of Technologies, Institute of Psychiatry (IPUB), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil.

Objectives: Thus, through a narrative review, this article analyzes how the advancement of technology, the use of digital resources, and social media have impacted the doctor-patient relationship.

Methods: We conducted a scoping review on the relationship between Digital Health Equity and Telemedicine and e-health via Scopus and Pubmed electronic databases. The following inclusion criteria were established: papers on the relationship between digital health equity and telemedicine and e-health, written in English and with no time limits.

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Mimosa tenuiflora, popularly known as "Jurema-Preta", is a perennial tree or shrub native to the tropical regions of the Americas, particularly among Afro-Brazilian and Indigenous Brazilian communities. Known for producing N,N-Dimethyltryptamine, a psychedelic compound with profound psychological effects, Jurema-Preta has been studied for its therapeutic potential in mental health. This study offers a comprehensive analysis of the plastid (ptDNA) and mitochondrion (mtDNA) genomes of M.

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Carboxysomes: The next frontier in biotechnology and sustainable solutions.

Biotechnol Adv

December 2024

Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah 23955, Saudi Arabia. Electronic address:

Some bacteria possess microcompartments that function as protein-based organelles. Bacterial microcompartments (BMCs) sequester enzymes to optimize metabolic reactions. Several BMCs have been characterized to date, including carboxysomes and metabolosomes.

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Mercury Levels in the Worldwide Farmed Fish: A Systematic Review.

Biol Trace Elem Res

December 2024

Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), University City, Rio de Janeiro, RJ, 21941-598, Brazil.

Aquaculture, specifically farmed fish, contributes to global aquatic fish stuff production. The present study systematically reviewed mercury levels in farmed fish. One hundred two scientific articles were found in four databases.

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