27 results match your criteria: "Federal University Fluminense (UFF)[Affiliation]"
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.
View Article and Find Full Text PDFMar Pollut Bull
September 2024
Department of Marine Biotecnology, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil; Marine Biotecnology Program, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM)/Federal University Fluminense (UFF), Rio de Janeiro, Brazil.
The Brazilian National Plan to Combat Marine Litter was launched in March 2019 and in its context, 577 campaigns were carried out to clean up beaches, rivers, estuaries and mangroves, until January 2023, at an estimated cost of US$ 16,733,000.00. The volume collected in four years represented only 0.
View Article and Find Full Text PDFFree Radic Biol Med
August 2024
Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil; Graduate Program in Nutrition Sciences, Federal University Fluminense (UFF), Niterói, RJ, Brazil; Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil. Electronic address:
Sulforaphane (SFN), found in cruciferous vegetables, is a known activator of NRF2 (master regulator of cellular antioxidant responses). Patients with chronic kidney disease (CKD) present an imbalance in the redox state, presenting reduced expression of NRF2 and increased expression of NF-κB. Therefore, this study aimed to evaluate the effects of SFN on the mRNA expression of NRF2, NF-κB and markers of oxidative stress in patients with CKD.
View Article and Find Full Text PDFSAGE Open Nurs
March 2024
Department of Nursing, Postgraduate Program in Nursing, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
Introduction: Occupational stress affects health professionals; however, no literature was found on the middle-range theory for this outcome in health professionals.
Methods: Methodological study for the theoretical validation of a nursing diagnosis using the theoretical framework of Walker and Avant and the Betty Neuman systems models. The research was conducted in five stages: comprehension of the system model; selection and review of studies; development of the conceptual-theoretical-empirical structure; elaboration of a diagram and proposition of a nursing diagnosis; and evaluation of the empirical adequacy of the theory and validity of the system model.
J Ren Nutr
January 2024
Graduate Program in Biological Sciences, Department of Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil; Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, RJ, Brazil. Electronic address:
Background: Patients with chronic kidney disease (CKD) have reduced expression of erythroid nuclear factor-related factor 2 (NRF2) and increased nuclear factor κB (NF-κB). "Food as medicine" has been proposed as an adjuvant therapeutic alternative in modulating these factors. No studies have investigated the effects of sulforaphane (SFN) in cruciferous vegetables on the expression of these genes in patients with CKD.
View Article and Find Full Text PDFFood Microbiol
December 2020
University of São Paulo, School of Animal Science and Food Engineering, Department of Food Engineering, Av. Duque de Caxias Norte, 225, CEP 13635-900, Pirassununga, SP, Brazil. Electronic address:
This study aimed to evaluate the effect of Lactobacillus rhamnosus GG on growth of Staphylococcus aureus and Listeria monocytogenes, inoculated alone or in combination on surface of Minas Frescal cheeses, during storage for 21 days at 7 °C. Survival percentages of each individual bacterial species after exposure to in vitro simulated gastrointestinal conditions (SGC) were also determined. The addition of L.
View Article and Find Full Text PDFObes Surg
July 2020
School of Medicine, Federal University of Rio de Janeiro (UFRJ), Carlos Chagas avenue, 373. Edifício do Centro de Ciências da Saúde, 2º floor, room 49, Cidade Universitária - Ilha do Fundão, Rio de Janeiro, CEP 21.941-902, Brazil.
Objective: To compare the nutritional status of vitamin D, calcium, and serum concentrations of parathyroid hormone (PTH) between women undergoing Roux-en-Y gastric bypass (RYGB) who became pregnant and women who did not become pregnant during the same postoperative period, as well as the impact of these changes on maternal and child health.
Methods: This is a longitudinal and retrospective study of women who previously underwent RYGB, paired by age and preoperative body mass index (BMI), divided into two groups: group 1 (G1), comprising 79 women who did not become pregnant, and group 2 (G2), comprising 40 pregnant women assessed in the overall trimesters. Both groups were analyzed before surgery (T0) and in the same interval after surgery: less than or equal to 1 year (T1) or greater than 1 year (T2), with a 2-year period at the most.
Biochemistry
April 2019
Medical Sciences Graduate Program , Federal University Fluminense (UFF), Niterói , RJ 24220-900 , Brazil.
Recent studies have suggested that uremic toxins such as indoxyl sulfate (IS) and indole-3-acetic acid (IAA) from the metabolism of the gut microbiota may be involved in the inflammatory signaling pathway in chronic kidney disease (CKD) patients through the activation of the aryl hydrocarbon receptor (AhR), a ligand-activated transcription factor. The objective of this study was to investigate the possible relationship between uremic toxins (IS and IAA) and AhR protein expression in CKD patients. A cross-sectional observational study involving 17 hemodialysis (HD) [11 men, 55.
View Article and Find Full Text PDFHemodial Int
April 2019
Post-Graduate Program in Medical Sciences, Federal University Fluminense (UFF), Niterói, Rio de Janeiro, Brazil.
Introduction: Indoxyl sulfate (IS) and p-cresyl sulfate (p-CS) are albumin-bound uremic toxins that are difficult to remove by hemodialysis (HD). Human serum albumin (HSA) carries several compounds, including fatty acids that can bind to site II of HSA and represent competing ligands for uremic toxins. The aim of this study was to investigate the association between fatty acids and uremic toxin plasma levels in patients undergoing HD.
View Article and Find Full Text PDFInt Urol Nephrol
December 2018
Cardiovascular Science Graduate Program, Federal University Fluminense (UFF), Niterói, Brazil.
Açai (Euterpe oleracea Mart.) fruit from the Amazon region in Brazil contains bioactive compounds such as α-tocopherol, anthocyanins (cyanidin 3-glycoside and cyanidin 3-rutinoside), and other flavonoids with antioxidant and anti-inflammatory properties. Moreover, the prebiotic activity of anthocyanins in modulating the composition of gut microbiota has emerged as an additional mechanism by which anthocyanins exert health-promoting effects.
View Article and Find Full Text PDFJ Ren Nutr
January 2018
Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói-RJ, Brazil; Medical Sciences Graduate Program, Federal University Fluminense (UFF), Niterói-RJ, Brazil.
Objective: The objective of the study was to evaluate the effects of probiotic supplementation on the gut microbiota profile and inflammatory markers in chronic kidney disease patients undergoing maintenance hemodialysis (HD).
Design And Methods: This was a randomized, double-blind, placebo-controlled study. Forty-six HD patients were assigned to receive 1 of 2 treatments: probiotic (n = 23; Streptococcus thermophilus, Lactobacillus acidophilus e Bifidobacterialongum, 90 billion colony-forming units per day) or placebo (n = 23) daily for 3 months.
Life Sci
November 2017
Cardiovascular Sciences Graduate Program, Federal University Fluminense (UFF), Niterói, Rio de Janeiro (RJ), Brazil; Medical Sciences Graduate Program, Federal Fluminense University (UFF), Niterói, Rio de Janeiro (RJ), Brazil.
Studies have shown that nuclear factor erythroid 2-related factor 2 (Nrf2) can be modulated by physical exercise. However, the impact of resistance exercise has never been investigated in patients with chronic kidney disease (CKD). The aim of this study was to evaluate the effects of resistance exercise programs on the expression of transcription factors Nrf2 and nuclear factor κB (NF-κB) in CKD patients on hemodialysis (HD).
View Article and Find Full Text PDFNephron
May 2018
Cardiovascular Sciences Graduate Program, Federal University Fluminense (UFF), Niterói, Brazil.
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor involved in the expression of xenobiotic-metabolizing enzymes, inflammatory cytokines and adhesion molecules. Uremic toxins such as indoxyl sulfate and indole acetic acid are derived from tryptophan fermentation by gut microbiota; they accumulate in patients with chronic kidney disease (CKD) on haemodialysis and have recently emerged as potent ligands of AhR. Therefore, AhR can serve as a mediator in inflammation and cardiovascular diseases in these patients.
View Article and Find Full Text PDFJ Ren Nutr
November 2016
Medical Sciences Graduate Program, Federal University Fluminense (UFF), Niterói, RJ, Brazil; Cardiovascular Sciences Graduate Program, UFF, Niterói, RJ, Brazil.
Objective: Protein-bound uremic toxins from gut microbiota tend to accumulate in chronic kidney disease (CKD) patients and are poorly removed by current dialysis techniques. These toxins induce inflammation and are associated with cardiovascular disease (CVD). The aim of this study was to report the relationship between uremic toxins and inflammatory and cardiovascular markers in CKD patients.
View Article and Find Full Text PDFSyst Rev
October 2016
Department of Public Health, Federal University of Health Science of Porto Alegre - UFCSPA, Rua Sarmento Leite, 245, Porto Alegre, RS, CEP 90050-170, Brazil.
Background: Distinguishing hydatidiform moles (HMs) from non-molar specimens and the subclassification of HM are important because complete hydatidiform mole (CHM) is associated with an increased risk of gestational trophoblastic neoplasia. However, diagnosis based solely on morphology has poor interobserver reproducibility. Recent studies have demonstrated that the use of p57 immunostaining improves diagnostic accuracy for CHM.
View Article and Find Full Text PDFEur J Nutr
August 2016
Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil.
The gut microbiota has been extensively studied in all health science fields because its imbalance is linked to many disorders, such as inflammation and oxidative stress, thereby contributing to cardiovascular disease, obesity, diabetes and chronic kidney disease (CKD) complications. Novel therapeutic strategies that aim to reduce the complications caused by this imbalance have increased in recent years. Studies have shown that prebiotic supplementation can beneficially modulate the gut microbiota in CKD patients.
View Article and Find Full Text PDFNutr Hosp
October 2015
Cardiovascular Sciences Graduate Program, Fluminense Federal University (UFF), Niterói-RJ, Brazil..
Background: thyroid function depends on trace mineral selenium (Se), being at the active center of the iodothyronine deiodinase that catalyzes the conversion of the thyroxine (T4) to the active form of thyroid hormone, triiodothyronine (T3). Hemodialysis (HD) patients have reduced T3 levels partly due to impaired hormonal conversion that can be related to Se deficiency, a common feature in these patients. This study evaluated the effect of Brazil nuts (richest Se source) on thyroid hormone levels in HD patients.
View Article and Find Full Text PDFKidney Int
November 2015
Department of Nephrology and Nutrition, Centre Hospitalier Lyon SUD, Carmen, CENS, Univ Lyon, UCBL, Pierre Bénite, France.
Probiotics are the focus of a thorough investigation as a natural biotreatment due to their various health-promoting effects and inherent ability to fight specific diseases including chronic kidney disease (CKD). Indeed, intestinal microbiota has recently emerged as an important player in the progression and complications of CKD. Because many of the multifactorial physiological functions of probiotics are highly strain specific, preselection of appropriate probiotic strains based on their expression of functional biomarkers is critical.
View Article and Find Full Text PDFFuture Microbiol
January 2016
Cardiovascular Sciences Graduate Program, Federal University Fluminense (UFF), Niterói-RJ, Brazil.
Aim: To evaluate the gut microbial profile in chronic kidney disease (CKD) patients and evaluate the possible relationship with inflammation and cardiovascular risk.
Patients & Methods: Markers inflammation plasma and bacterial community profile (denaturing gradient gel electrophoresis) were analyzed.
Results: The average number of bands was not different in healthy individuals and CKD patients.
Nutr Hosp
November 2014
Medical Sciences Graduate Program, Federal University Fluminense (UFF), Niterói - RJ. Cardiovascular Sciences Graduate Program, Federal University Fluminense (UFF), Niterói - RJ..
Introduction: Fructose intake has increased dramatically in consequence of the consumption of fructose-based sweetened foods and beverages. Research suggests that high fructose intake has a strong association with uric acid (UA) levels and worse prognosis of chronic kidney disease (CKD).
Objective: The aim of this study was to investigate the influence of fructose intake on plasma UA levels in nondialysis- dependent CKD patients.
Int J Paediatr Dent
September 2014
Federal University Fluminense (UFF), Post-Graduation in Cardiovascular Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Future Microbiol
January 2015
Medical Sciences Graduate Program, Federal University Fluminense (UFF), Niterói-RJ, Brazil.
The normal intestinal microbiota plays a major role in the maintenance of health and disease prevention. In fact, the alteration of the intestinal microbiota has been shown to contribute to the pathogenesis of several pathological conditions, including obesity and insulin resistance, among others. Recent studies have revealed profound alterations of the gut microbial flora in patients and animals with chronic kidney disease (CKD).
View Article and Find Full Text PDFRegul Pept
January 2012
Clinical Nutrition Department, Nutrition Faculty, Federal University Fluminense (UFF), Niterói, Brazil.
Nesfatin-1 is a recently identified anorexigenic peptide that has been implicated in appetite regulation, weight loss and/or malnutrition. Anorexia and malnutrition are common features of chronic kidney disease (CKD) that predispose patients to worse outcomes. However, the reasons for the occurrence of anorexia in CKD patients are not fully elucidated.
View Article and Find Full Text PDFNDT Plus
October 2011
Department of Nephrology, Hôpital E. Herriot and INSERM U870, Univ Lyon 1, Lyon, France.
Med Hypotheses
October 2011
Clinical Nutrition Department, Nutrition Faculty, Federal University Fluminense (UFF), Niterói, Brazil.
Studies on appetite hormones in chronic kidney disease (CKD) patients appear of interest since these compounds may be implicated in reduced appetite, loss of weight and/or malnutrition. Anorexia seems to be related to many hormones that act in central nervous system, like leptin, obestatin and others, and more recently, was discovered a hypothalamus secreted protein that conduces to a decrease on food intake and to an increase on energetic waste, called nesfatin-1. This peptide has been studied in diabetes, mean arterial pressure and cardiovascular function, anxiety- and/or fear-related responses and inflammation, but there are no studies about a possible relationship with CKD.
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