153 results match your criteria: "Federal University of Rio de Janeiro State[Affiliation]"

Article Synopsis
  • The study focuses on a genus of plants known for their therapeutic properties, particularly for treating conditions like tuberculosis and urinary infections, with an emphasis on a species endemic to Brazil.
  • It identifies and analyzes the main compounds in its aqueous extract, finding Arbutin, Caffeic acid 4-O-glucoside, and Dihydroformononetin to be the most abundant; the gastrointestinal absorption and ability to cross the blood-brain barrier of these compounds were evaluated.
  • The research indicates that Arbutin and Dihydroformononetin may lead to drug synthesis and shows potential for phytotherapeutic use, although some mutagenicity predictions require cautious interpretation.
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Outcomes of Oberlin Transfer in Elderly Patients: A Case Series.

World Neurosurg

December 2024

Division of Neurosurgery, Department of Surgery, Gaffrée and Guinle University Hospital, School of Medicine, Federal University of Rio de Janeiro State, Rio de Janeiro, RJ, Brazil.

Objective: A case series analysis was performed of upper brachial plexus injuries (BPIs) from low-impact trauma in patients ≥60 years old to assess the effectiveness of nerve transfers, particularly the Oberlin technique, in restoring elbow flexion and to refine clinical decision making for managing traumatic BPIs in this age group.

Methods: Between 2013 and 2024, 11 patients aged 60-72 with traumatic upper BPIs underwent Oberlin technique for elbow flexion; all were evaluated with consistent postsurgical criteria.

Results: Trauma mechanisms included falls (55%), direct trauma (27%), knife wounds (9%), and stretching (9%), with no high-impact trauma cases.

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Starch-pectin smart tag containing purple carrot peel anthocyanins as a potential indicator of analogous meat freshness.

Int J Biol Macromol

December 2024

Food and Nutrition Graduate Program, Federal University of Rio de Janeiro State (UNIRIO), Rio de Janeiro, RJ, Brazil; Laboratory of Multidisciplinary Practices for Sustainability (LAMPS), Institute of Nutrition, Rio de Janeiro State University (UERJ), Rio de Janeiro, RJ, Brazil. Electronic address:

Article Synopsis
  • Researchers created smart films using starch, pectin, and purple carrot peel (PCP) that contain anthocyanins, enabling them to act as pH-responsive tags for monitoring plant-based chicken products.
  • They tested different forms of PCP (powder and extracts) and found that films with higher PCP concentrations improved strength and water resistance while effectively responding to pH changes.
  • The study demonstrated that these films changed color significantly over three days when used on chicken equivalents, highlighting PCP's potential as a natural colorant and indicator in food packaging.
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Phenolic phytometabolites are promising bioactive compounds for management of genomic instability related diseases. Formononetin (FMN) and arbutin (ARB) are found in several plant sources. Our goal was to investigate the safety and efficacy of FMN and ARB using both standardized and alternative toxicogenetic methods.

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Divergent temporal responses of native macroinvertebrate communities to biological invasions.

Glob Chang Biol

October 2024

Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czech Republic.

Biological invasions pose a major threat to biodiversity, ecosystem functioning, and human well-being. Non-native species can have severe ecological impacts that are transformative, affecting ecosystems across both short-term and long-term timescales. However, few studies have determined the temporal dynamics of impact between these scales, impeding future predictions as invasion rates continue to rise.

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The genus is crucial for global production in food, perfume, and pharmaceutical industries. However, exploitation threatens some species, leading to extinction. Traditional communities use vanilla for medicinal purposes, and there are species like Klotzsch and Hoehne with potential to occupy the market.

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Brachial plexus peripheral nerve sheath tumors (PNSTs): clinical and surgical management in the pediatric population.

Childs Nerv Syst

November 2024

Department of Surgery, School of Medicine, Division of Neurosurgery, Gaffrée and Guinle University Hospital, Federal University of Rio de Janeiro State (UNIRIO), 775 Mariz E Barros Street, Rio de Janeiro, RJ, Brazil.

Purpose: Peripheral nerve sheath tumors (PNSTs) are rare in pediatric patients, especially in the brachial plexus. Research on PNSTs is lacking. This article presents a retrospective cohort study of pediatric patients diagnosed and treated with PNSTs, specifically brachial plexus tumors.

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Background: Numerous fetal growth curves have been developed from various subpopulations and geographic locations worldwide.

Objective: To determine the birthweight standard at the Maternity School and compare it to currently used standards in the clinical practice services.

Study Design: Cross-sectional, observational, and descriptive study.

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Non-Hodgkin's Lymphoma (NHL) is a malignancy of the lymphoid lineage of the hematopoietic system has worldwide, especially in developed countries. Better diagnostic and recording techniques, longer life expectancy, and greater exposure to risk factors are hypotheses for this growing incidence curve. Occupational exposures to chemical, biological, and physical agents have also been associated with NHL development, but the results are still controversial.

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The consumption of dietary supplements to enhance physical performance has increased significantly in the last century, especially thermogenic pre-workout supplements. Nevertheless, this industry has faced criticism for inadequate safety measures surveillance in regulatory issues regarding their products. The aims of our study were to investigate two pre-workout supplements with respect to (1) mutagenicity utilizing /microsome assay; (2) genotoxicity employing cytokinesis-block micronucleus (CBMN) assay protocols; and (3) hepatocytoxicity using WST cell proliferation, activities of lactate dehydrogenase (LDH) and alkaline phosphatase using human liver carcinoma (HepG2) and mouse fibroblast (F C3H) cells.

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Biological invasions are a global challenge that has received insufficient attention. Recently available cost syntheses have provided policy- and decision makers with reliable and up-to-date information on the economic impacts of biological invasions, aiming to motivate effective management. The resultant database is now publicly and freely accessible and enables rapid extraction of monetary cost information.

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Unveiling the hidden economic toll of biological invasions in the European Union.

Environ Sci Eur

June 2023

Center for Applied Mathematics and Bioinformatics, Department of Mathematics and Natural Sciences, Gulf University for Science and Technology, Hawally, Kuwait.

Background: Biological invasions threaten the functioning of ecosystems, biodiversity, and human well-being by degrading ecosystem services and eliciting massive economic costs. The European Union has historically been a hub for cultural development and global trade, and thus, has extensive opportunities for the introduction and spread of alien species. While reported costs of biological invasions to some member states have been recently assessed, ongoing knowledge gaps in taxonomic and spatio-temporal data suggest that these costs were considerably underestimated.

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Article Synopsis
  • Cognitive dysfunction is commonly observed in patients recovering from COVID-19, with the exact mechanisms not fully understood.
  • Research indicates that the Spike protein of SARS-CoV-2 can affect brain function, as shown in mouse studies where infusion of this protein leads to cognitive impairment similar to post-COVID-19 syndrome.
  • Key findings highlight that TLR4 signaling plays a crucial role in memory dysfunction related to the Spike protein, suggesting it could be a target for addressing long-term cognitive issues in individuals after COVID-19.
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In this study, a beetroot peel flour was made, and its in vitro antioxidant activity was determined in aqueous (BPFw) and ethanolic (BPFe) extracts. The influence of BPFw on breast cancer cell viability was also determined. A targeted betalain profile was obtained using high-resolution Q-Extractive Plus Orbitrap mass spectrometry (Obrtitrap-HRMS) alongside untargeted chemical profiling of BPFw using Ultra-High-Performance Liquid Chromatography with High-Resolution Mass Spectrometry (UHPLC-HRMS).

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The ideal food packaging materials are recyclable, biodegradable, and compostable. Starch from plant sources, such as tubers, legumes, cereals, and agro-industrial plant residues, is considered one of the most suitable biopolymers for producing biodegradable films due to its natural abundance and low cost. The chemical modification of starch makes it possible to produce films with better technological properties by changing the functional groups into starch.

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Background: In Brazil, 5870 new cases of malignant central nervous system tumors (MCNST) were estimated for men and 5220 for women for each year of the 2020-2022 triennium. The objective of this study was to analyze incidence rate trends and compare demographic characteristics of new MCNST cases according to tumor topographies in Brazil from 2000 to 2015.

Methods: This study comprises an analytical cross-sectional assessment of secondary databases extracted from the Brazilian National Cancer Institute (INCA) website.

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Background: In several countries, such as Brazil, the oncological diagnosis usually occurs at an advanced stage of the disease. Thus, the aim of this study was to investigate temporal trends and factors associated with the cancer diagnosed at stage IV in Brazil in two decades.

Methods: Secondary-based study, with time series analysis for trend assessment and cross-sectional of factors associated with diagnosis of female breast, prostate, cervix uteri, colorectal, lung, stomach, lip and oral cavity, thyroid, esophagus or corpus uteri at stage IV.

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This study aimed to evaluate Bauhinia forficata infusions prepared using samples available in Rio de Janeiro, Brazil. As such, infusions at 5% (w/v) of different brands and batches commercialized in the city (CS1, CS2, CS3, and CS4) and samples of plant material botanically identified (BS) were evaluated to determine their total phenolic and flavonoid contents (TPC and TFC), antioxidant capacity (ABTS•+, DPPH•, and FRAP assays), phytochemical profile, volatile compounds, and inhibitory effects against the α-amylase enzyme. The results showed that infusions prepared using BS samples had lower TPC, TFC and antioxidant potential than the commercial samples (p < 0.

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Planktonic invasive species cause adverse effects on aquatic biodiversity and ecosystem services. However, these impacts are often underestimated because of unresolved taxonomic issues and limited biogeographic knowledge. Thus, it is pivotal to start a rigorous quantification of impacts undertaken by planktonic invasive species on global economies.

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The benefits of practicing physical activity, such as weight loss and control, are commonly associated with caloric restriction diets and may be improved by the ingestion of thermogenic and ergogenic supplements. However, there is a lack of safety data on commonly marketed nutritional supplements. Therefore, this investigation aims to evaluate a pre-workout supplement for mutagenicity using the Ames test, hepatocytoxicity in HepG2 and F C3H cells after 24 h, 48 h and 72 h, genotoxicity using the CBMN assay, determination of gluthatione activity and computational prediction of the three major isolated compounds present in the supplement.

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Purpose: The aim of this study was to determine the incidence and factors associated with the development of metastatic spinal cord compression (MSCC) after cervical cancer (CC).

Methods: This retrospective cohort of 3551 women with CC who underwent treatment at the Brazilian National Cancer Institute were included in the study. Clinical and sociodemographic variables were obtained from the Hospital Cancer Registry and from hospital records.

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Purpose: Although rare, brain metastases (BM) from cervical cancer (CC) are highly lethal. Adequate patient selection for specific treatments can improve survival rates in patients afflicted by this condition. This study aimed to describe the characteristics of CC patients who developed BM and overall survival-associated factors.

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Yin and Yang 1 gene (YY1; MIM#600,013) is recognized as a dual transcriptional activating and repressing factor, RNA-binding protein, and 3D chromatin regulator, with multi roles in neurodevelopmental and maintenance pathways. YY1 haploinsufficiency caused either by heterozygous sequence variants or deletions involving the whole gene has been recently associated with Gabriele-de Vries syndrome (GADEVS), a rare congenital autosomal dominant condition, leading to intellectual disability (ID) and multiple physical/behavioural abnormalities. Herein, we describe clinical and molecular findings from a Brazilian female harbouring a de novo missense pathogenic variant in YY1 gene (NM_003403.

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Objective: Cerebral metastasis (CM) in cervical cancer (CC) cases, although rare, results in high lethality rates. The present study aimed to assess CM incidence in a Brazilian reference CC center and evaluate the risk factors for CM development. Retrospective observational study of patients diagnosed with CC between 2010 and 2017.

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