433 results match your criteria: "Fluminense Federal University - UFF[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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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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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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Healthy eating habits may protect adolescents against disease development, ensure optimal physical and cognitive development, and may persist in adulthood. However, adolescents usually prefer sweetened dairy products and show a low consumption of vegetables, fruits, whole grains, and pulses. Co-creation offers an innovative and inclusive alternative for the development of new products.

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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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Exploring the Potential of Nitrofurantoin for Infection Control in Regenerative Endodontics: In Vitro Study.

J Endod

December 2024

Postgraduate Program in Dentistry of Fluminense Federal University (UFF), Niteroi, Rio de Janeiro, Brazil; Geriatric Dentistry Department, Faculty of Dentistry of Fluminense Federal University (UFF), Niteroi, Rio de Janeiro, Brazil; Laboratory of Experimental Culture Cell (LECCel), Faculty of Dentistry of Fluminense, Federal University (UFF), Niteroi, Rio de Janeiro, Brazil; Endodontics Department, Faculty of Dentistry of Fluminense Federal University (UFF), Niteroi, Rio de Janeiro, Brazil. Electronic address:

Introduction: This study assessed a new antimicrobial paste formulation containing nitrofurantoin for regenerative endodontics against multispecies biofilms.

Methods: Four groups of 11 single-root teeth each were tested: Negative control group (brain-heart infusion broth + micro-organisms); Hoshino 1 conventional tri-antibiotic paste group (1:1:1 ratio); Hoshino 5 group (5:5:5 ratio); Experimental group with nitrofurantoin, ciprofloxacin, and metronidazole. Minimum inhibitory concentrations of each antimicrobial were determined.

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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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Pumpkin seed protein as a carrier for Astaxanthin: Molecular characterization of interactions and implications for stability.

Food Chem

March 2025

Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Nanotechnology Network, Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro (FAPERJ), Rio de Janeiro, RJ 20020-000, Brazil. Electronic address:

This study investigated pumpkin seed protein (PSP) as a carrier for astaxanthin (AST). Interaction mechanisms revealed through fluorescence spectroscopy and molecular docking, showed that hydrogen bonds and Van der Waals forces form the PSP-AST complex. AST binding altered PSP's secondary structure, increasing α-helix (7.

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Effects of intradialytic bicycle ergometer exercise on transcription factors NF-ĸB and Nrf2 in patients with chronic kidney disease: A randomized crossover clinical trial.

J Bodyw Mov Ther

October 2024

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

Purpose: To evaluate the effects of an intradialytic aerobic exercise training program on the expression of transcription factors nuclear factor κappa B (NF-κB) and nuclear factor erythroid 2-related factor 2 (Nrf2), related to inflammatory and antioxidant pathways, respectively, in patients with chronic kidney disease (CKD) on hemodialysis.

Methods: This was a longitudinal, randomized clinical trial with a washout period and crossover performed with 33 patients randomized into two groups: Exercise (individualized intradialytic aerobic exercise on an adapted stationary exercise bike) three times per week for three months and control (without exercise). After the washout period (1 month), the exercise group became the control, and the other group performed the exercises for another three months.

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Ophthalmic Artery Doppler as a Predictor of Adverse Neonatal Outcomes in Women With Preeclampsia.

J Clin Ultrasound

November 2024

Unit of Fetal Medicine, National Institute of Women's, Children's and Adolescents' Health Fernandes Figueira, Oswaldo Cruz Foundation (IFF/Fiocruz), Rio de Janeiro, Rio de Janeiro, Brazil.

Article Synopsis
  • - This study investigated the link between Doppler indices of the ophthalmic artery and negative outcomes for newborns in pregnant women with preeclampsia (PE) using data collected from 110 patients in southeastern Brazil.
  • - Researchers measured various ophthalmic parameters and tracked multiple neonatal outcomes, such as neonatal death and low birth weight, but found no significant relationship between Doppler results and these outcomes.
  • - The findings suggest that while ophthalmic artery Doppler can help assess maternal health, it does not independently predict adverse outcomes for newborns in cases of severe preeclampsia.
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The study evaluated the effects of conventional pasteurization and ohmic heating (OH) at different electric fields (12, 16, 20, or 24 V/cm) on probiotic chocolate dairy desserts' physicochemical, microbiological, sensory properties and volatile profiles. Both treatments were analyzed for parameters such as pH, syneresis, cream stability index, rheology, bioactive compounds (total phenolics and antioxidant capacity), and probiotic viability (Lactobacillus acidophilus LA-05) over a 28-day storage period. Ohmic heating at higher electric fields (20 and 24 V/cm) showed comparable results to pasteurization for most parameters, with non-significant differences or even higher values for some.

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Post-COVID-19 Condition (PCC) refers to a multisystemic syndrome that persists for months after SARS-CoV-2 infection. Cognitive deficits, fatigue, depression, and anxiety are common manifestations of the condition, but the underlying mechanisms driving these long-lasting neuropsychiatric features are still unclear. We conducted a prospective multi-method investigation of post-hospitalization COVID-19 patients in Rio de Janeiro, Brazil.

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Genomic characterization of a clonal emergent Minnesota lineage in Brazil reveals the presence of a novel megaplasmid of resistance and virulence.

Appl Environ Microbiol

November 2024

Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, Brazil.

Article Synopsis
  • * A unique megaplasmid, called pESM, associated with multidrug resistance and virulence has been identified, carrying genes that provide resistance to important antibiotics and enhance tolerance to environmental stressors like mercury.
  • * The study reveals that pESM likely contributes to the emergence and spread of Minnesota, which poses significant risks for human and animal infections due to its high virulence and antibiotic resistance.
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In response to the COVID-19 pandemic, scientific authorities were routinely consulted by mainstream media outlets through interviews, statements and/or supporting images. In this framework, our goal in this study was to analyze the media representation of scientists in Brazil during the first year of this global public health crisis. To this end, we applied a research protocol and, using statistical techniques, quantitatively analyzed newscasts on the country's main TV news program, Jornal Nacional.

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Propolis possesses many bioactive compounds that could modulate the gut microbiota and reduce the production of uremic toxins in patients with chronic kidney disease (CKD) undergoing hemodialysis (HD). This clinical trial aimed to evaluate the effects of propolis on the gut microbiota profile and uremic toxin plasma levels in HD patients. These are secondary analyses from a previous double-blind, randomized clinical study, with 42 patients divided into two groups: the placebo and propolis group received 400 mg of green propolis extract/day for eight weeks.

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Background: The Amazon forest produces a variety of fruits with strong biotechnological potential. However, their use in dairy products is restricted.

Scope And Approach: This work aims to carry out a bibliographic survey on the technological applications of select edible Amazonian fruits and their residues in the elaboration and quality of dairy products.

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Article Synopsis
  • Nattokinase (NK), derived from the traditional Asian food natto, has been shown to lower cardiovascular disease (CVD) mortality due to its properties that help dissolve blood clots and prevent thrombosis.
  • Recent studies suggest NK may also combat inflammation and oxidative stress, linking it to potential benefits in treating various non-communicable diseases (NCDs).
  • This review analyzes the current literature and emphasizes NK's therapeutic promise, highlighting its dual role in improving cardiovascular health and its newfound anti-inflammatory and antioxidant benefits.
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The progression of obesity involves several molecular mechanisms that are closely associated with the pathophysiological response of the disease. Endoplasmic reticulum (ER) stress is one such factor. Lipotoxicity disrupts endoplasmic reticulum homeostasis in the context of obesity.

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Honey and Aloe vera Solution Increases Survival and Modulates the Tumor Size In Vivo.

Mol Nutr Food Res

October 2024

Laboratory of Nutrition and Cancer, Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-970, Brazil.

Scope: The combination of honey and Aloe vera is used as a popular complementary treatment for cancer due to their nutraceutical properties. This study aims to investigate the anticancer activity of honey and A. vera solution and its ethanolic extraction through in vitro and in vivo approaches.

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Selenium (Se) is a mineral with several biological functions, and studies have shown that its deficiency can be linked to many complications in patients with chronic kidney disease (CKD). This study aims to systematically review the effects of Se supplementation in patients with CKD undergoing haemodialysis (HD). This systematic review was carried out according to the PRISMA statement.

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The decision-making process consists of finding the best solution to an analyzed problem. This search is carried out in the face of countless interactions when analyzing an alternative criterion by criterion, under which weights are assigned that distinguish the degree of importance they have for the decision-makers. The definition of weight for each criterion gives rise to three lines of thought on the subject.

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Introduction: Trimethylamine (TMA), produced by gut microbiota, is the precursor of trimethylamine-N-oxide (TMAO), a uremic toxin that accumulates in patients with chronic kidney disease (CKD). Elevated TMAO plasma levels are associated with cardiovascular complications and CKD progression.

Objective: To evaluate the association between gut microbiota composition and TMAO plasma levels in CKD patients undergoing hemodialysis (HD).

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Detection of Brucella S19 Vaccine Strain DNA in Domestic and Wild Ungulates from Brazilian Pantanal.

Curr Microbiol

August 2024

Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University (UCDB), Av. Tamandaré, 6000, Jardim Seminário, Campo Grande, Mato Grosso Do Sul, 79117-900, Brazil.

The Pantanal region, the largest floodplain in the world, has a huge biodiversity and is an important livestock center. Bovine brucellosis has been reported in the region over the last three decades, posing implications for cattle industry as well as for the maintenance of biodiversity. We aimed to investigate the presence of B.

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