1,050 results match your criteria: "Federal Fluminense University[Affiliation]"

A double-blind, randomized, and controlled clinical trial with therapeutic intervention was performed at a university hospital in Rio de Janeiro to evaluate whether the addition of Hayne oleoresin to a carboxypolymethylene hydrogel is more effective in skin tear healing than standard treatment. The sample consisted of 84 patients, predominantly men, with a mean age of 67.37 years.

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Snakebite envenomation is a public health issue that can lead to mortality and physical consequences. It is estimated that 5.4 million venomous snake bites occur annually, with 130,000 deaths and 400,000 amputations.

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Brown algae are vital structural elements and contributors to biodiversity in marine ecosystems. These organisms adapt to various environmental challenges by producing primary and secondary metabolites crucial for their survival, defense, and resilience. Besides their ecological role, these diverse metabolites have potential for biotechnological applications in industries including pharmaceuticals, cosmetics, and food.

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Article Synopsis
  • The study focused on comparing oral lichen planus and related lesions due to their risk of becoming cancerous and the need to differentiate them from similar conditions.
  • Researchers conducted a survey among patients to collect sociodemographic and clinical data, analyzing this information using statistical tests.
  • The findings revealed distinct characteristics for each type of lesion, with lichen planus showing reticular patterns and the buccal mucosa being the most affected area, while proliferative verrucous leukoplakia was linked with significant epithelial dysplasia.
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Diversity of Endodontic Enterococcus faecalis from Brazil with a High Occurrence of the ST 397 Clone.

Braz Dent J

December 2024

Instituto Oswaldo Cruz, Laboratório de Genética Molecular de Microrganismos, FIOCRUZ, Rio de Janeiro, Brazil.

Enterococcus faecalis is a common cause of nosocomial infections and is frequently associated with endodontic infections. However, there is a scarcity of studies addressing the genetic characterization of E. faecalis lineages most commonly associated with root canals.

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Exploring the genetic contribution in obesity: An overview of dopaminergic system genes.

Behav Brain Res

December 2024

Human Genetics Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation (Fiocruz), 4365 Brazil Avenue, Leônidas Deane Pavilion, Rio de Janeiro, RJ 21040-360, Brazil; Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Professor Rodolpho Paulo Rocco Street, 255, University City, Rio de Janeiro, RJ 21941-617, Brazil. Electronic address:

Article Synopsis
  • Obesity is a growing global health issue linked to lower quality of life and higher health risks, with a rising prevalence in Western countries.
  • Researchers are investigating the role of neurotransmitters, especially dopamine, in influencing food intake and behaviors associated with obesity.
  • Genetic variations affecting dopaminergic processes may contribute to obesity by modifying how the brain responds to food-related rewards, highlighting the importance of understanding genetic factors in managing obesity.
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Progressive spontaneous regression of Chiari type I malformation associated with syringomyelia.

Childs Nerv Syst

December 2024

Department of Radiology, Clínica de Diagnóstico Por Imagem (CDPI)/DASA, Avenida das Américas, 4666, 302A, 303, 307, 325, 326, Barra da Tijuca, Rio de Janeiro, RJ, 2640-102, Brazil.

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Caloric Restriction (CR) and cinnamon promote several benefits, including the modulation of lipid metabolism and body fat mass. We hypothesize that cinnamon may act as a mimetic of restriction or enhance the effects of caloric restriction on adipose tissue. Adult male Wistar rats were divided into Control (CT, n = 8) and Cinnamon (CIN, n = 7), with free access to standard chow; Calorie Restriction (CR, n = 8) and Calorie Restriction with Cinnamon (CIN-CR, n = 7), subjected to a 30% reduction in food intake compared to the average consumption of CT rats.

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Genotoxicity analysis of a flame retardant, aluminum diethylphosphinate.

Mutat Res Genet Toxicol Environ Mutagen

December 2024

School of Pharmacy, Federal Fluminense University, Niteroi, RJ, Brazil; National Institute for Alternative Technologies for the Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), UNESP, Institute of Chemistry, Araraquara, SP, Brazil.

Flame retardants, crucial for fire prevention, are used worldwide, but they are considered to be 'emerging contaminants' and may pose risks to human and environmental health. Aluminum diethyl phosphinate (ALPI) is a halogen-free flame retardant. To evaluate the toxicity of this compound, the following assays were performed: Salmonella/microsome mutagenicity assay; toxicity assays with two endpoints (mitochondrial dehydrogenase activity, plasma membrane integrity); micronucleus assay with human hepatoma cell line HepG2.

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Radiometric evaluation of Ouratea miersii (Planch.) Engl. From the Municipal Natural Park of Niterói, Brazilian Atlantic Rainforest remnant.

Appl Radiat Isot

November 2024

Federal Fluminense University, Department of General Biology (LARARA / LASBIV / LCR / PPGDOT), São Domingos, Niterói, RJ, 24210-201, Brazil. Electronic address:

Concern about radiation exposure to non-human biota and the environment has increased since the 1990s, resulting in several publications by UNSCEAR, IAEA, ICRP, among other agencies, which highlighted significant gaps in knowledge regarding non-human biota and resulted in the establishment of Reference Animals and Plants (RAPs). In Brazil, the Atlantic Forest biome has vast biodiversity, but there is a lack of information on the radiometric profile of plant species growing there. Thus, the objective of this study was to evaluate the radiometric profile of Ouratea miersii (Malpighiales), endemic to the Atlantic Rainforest, collected in the State of Rio de Janeiro, city of Niterói, at the Municipal Natural Park (PARNIT), which covers a region of protected Atlantic Rainforest.

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Lyme disease, a zoonotic infection caused by the bacterium , is transmitted to humans through the bites of infected ticks. Its diagnosis primarily relies on serological methods; however, the existing borreliosis techniques have shown a variable sensitivity and specificity. Our study aimed to map IgG epitopes from five outer membrane proteins (Omp) from [Filament flagellar 41kD (PI1089), flagellar hook-associated protein (Q44767), Flagellar hook k2 protein (O51173), Putative Omp BURGA03 (Q44849), and 31 kDa OspA (P0CL66)] lipoprotein to find specific epitopes for the development of accurate diagnosis methods.

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Photoaging induced by ultraviolet A (UVA) radiation is mainly caused by the reactive oxygen species (ROS) increase, which trigger undesirable changes in the skin, such as inflammatory reactions, wrinkles, hyperpigmentation, and loss of elasticity. In this context, plant ingredients have been highlighted in recent decades due to their antioxidant mechanisms. This study investigated the potential of ethanolic extract against UVA-induced damage in 3T3 fibroblasts.

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Article Synopsis
  • - Patients with chronic kidney disease (CKD) have elevated levels of trimethylamine N-oxide (TMAO), a harmful substance linked to heart disease, and the study explores how gut microbes, specifically methanogenic archaea, might help reduce TMAO by consuming its precursor, trimethylamine (TMA).
  • - The study involved 25 CKD patients, where TMAO levels were measured and gut microbial DNA was sequenced, revealing high TMAO levels and a connection to archaea, particularly a significant negative correlation with the genus Methanobrevibacter.
  • - This research is pioneering in linking TMAO levels with archaea in CKD patients, highlighting the potential role of specific
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  • * Ilha Grande Bay (IGB) is a major scallop production area in Brazil that recently experienced a mass mortality event linked to environmental contaminants.
  • * The study found no presence of the oyster herpesvirus (OsHV-1) in water or scallops, but detected human pathogens (HAdV and norovirus) at multiple sites, indicating human contamination and posing risks to consumers.
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Bovine leptospirosis is a major reproductive disease. As cows can be leptospiral carriers both on the renal and genital tract, diagnosis can be challenging, with an underlying risk of misdiagnosis. Traditionally, the infection has been diagnosed by culturing or PCR from urine samples.

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"How-to": scoping review?

J Clin Epidemiol

December 2024

Health Evidence Synthesis, Recommendations and Impact (HESRI), School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia.

Background And Objective: Scoping reviews are a type of evidence synthesis that aims to identify and map the breadth of evidence available on a particular topic, field, concept, or issue, within or across a defined context or contexts. Scoping reviews can contribute to clinical practice guideline development, policy making, reduce research waste by eliminating duplication of research effort, and be a precursor to a systematic review or inform further primary research. This article aims to provide a brief introduction of how to conduct and report scoping reviews.

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Introduction: Metastatic colorectal cancer (mCRC) patients who are refractory to initial treatment lines exhibit a challenging clinical scenario characterised by a poor prognosis and constrained therapeutic options. This systematic review and meta-analysis assess the integration of bevacizumab into trifluridine-tipiracil (TFD/TPI) therapy for mCRC, examining its benefits across patient subgroups and evaluating safety relative to TFD/TPI monotherapy.

Materials And Methods: Following preferred reporting items for systematic reviews and meta-analysis statements, we conducted a thorough literature search from 15 October to 11 November 2023, covering MEDLINE, Embase and the Cochrane database.

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Clomazone is known to contaminate aquatic environments and have a negative impact on macrophytes. However, recent reports suggests that Pontederia crassipes Mart. can withstand clomazone exposure while maintaining growth rates.

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Descriptive analysis of the cases published in the Align® Global Gallery.

Dental Press J Orthod

October 2024

Rio de Janeiro State University (UERJ), School of Dentistry, Department of Social and Preventive Dentistry (PRECOM) (Rio de Janeiro/RJ, Brazil).

Introduction: Social media enhanced access to information, making it easier to share dental treatments.

Objective: This study aimed to conduct a descriptive analysis of the clinical cases published on the Align® Global Gallery platform.

Material And Methods: A retrospective cross-sectional study of 1,582 cases was conducted, data extracted referred to the following basic information: case number; patient's age; reported gender; Invisalign® package modality; treatment time; aligner exchange protocol; total number of aligners per arch; type of retainers, and inclusion of initial and final panoramic and cephalometric radiographs.

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Article Synopsis
  • The study examines the environmental degradation of Sepetiba Bay, Brazil, focusing on the impact of toxic elements on living benthic foraminifera.
  • It utilizes a multiproxy approach, correlating benthic foraminiferal species density with pollutants like arsenic and lead, revealing a poor ecological quality status, especially in inner bay areas.
  • The findings suggest that specific tolerant foraminifera species can indicate environmental health, making the study significant for coastal ecosystem management and biomonitoring efforts.
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Background And Aims: Vedolizumab is a humanized gut selective drug that targets α4β7 integrin and has been used successfully in the treatment of inflammatory bowel disease (IBD). Pivotal studies have already demonstrated the drug's safety, but some real-life cohorts have shown an increase in arthralgia and arthritis in patients using vedolizumab. These findings raised the question of whether these joint symptoms are extraintestinal manifestations of IBD (since the drug acts only in the gut) or if they are associated with the use of vedolizumab.

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  • Bovine Genital Leptospirosis (BGL) is a reproductive disease in cows caused by Leptospira spp., and accurate diagnosis is essential for effective control.
  • In this study, serology via the Microscopic Agglutination Test (MAT) was evaluated against PCR testing in 93 non-pregnant cows with reproductive issues; results showed a significant number of cows reacted positively to lepto, but MAT's reliability was low.
  • The study found MAT's sensitivity and specificity to be poor (with accuracy under 55%), suggesting it may not adequately identify all infected cows, which could hinder effective disease management.
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Serological tests are critical tools in the fight against infectious disease. They detect antibodies produced during an adaptive immune response against a pathogen with an immunological reagent, whose antibody binding characteristics define the specificity and sensitivity of the assay. While pathogen proteins have conveniently served as reagents, their performance is limited by the natural grouping of specific and non-specific antibody binding sites, epitopes.

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The pursuit of an improved quality of life is a major trend in the food market. This is driving the reformulation of the industry's product portfolio, with the aim of providing nourishment while also contributing to beneficial health metabolic processes. In this context, the use of local biodiversity and the recovery of the traditional knowledge associated with the consumption of vegetables that grow spontaneously in nature emerge as more sustainable and nutritionally adequate concepts.

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  • Systematic reviews show that inspiratory muscle training (IMT) is beneficial for both athletes and clinical populations.
  • Typically, IMT involves breathing against a resistance load twice a day for several weeks, but its use during aerobic exercise lacks solid evidence.
  • The authors argue that existing advantages of IMT should not be combined with aerobic exercise, suggesting standalone IMT is more effective.
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