10,647 results match your criteria: "Federal University of Rio De Janeiro[Affiliation]"

Background: The consumption of ultra-processed foods (UPFs) has increased worldwide, including among children. Maternal schooling has been associated with children's UPF consumption. The present study examined the interaction between maternal schooling and child age in the association with UPF consumption in Brazilian children <5 years.

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Objective: To investigate the effect of reducing exposure time to at-home bleaching gel on color change and tooth sensitivity.

Materials And Methods: The search was carried out using PubMed, Scopus, Web of Science, EMBASE, LILACS, Cochrane. Randomized clinical trials (RCTs) were included involving adult patients who have never undergone bleaching treatment before (P), subjected to bleaching with a reduced exposure time to the at-home bleaching agent (I) compared to those who used it for the time indicated by the manufacturer (C), to evaluate the effects on color change and tooth sensitivity (O).

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Risk of ischemic stroke in patients with pulmonary embolism and patent foramen ovale: A systematic review and meta-analysis.

J Stroke Cerebrovasc Dis

January 2025

Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; D'Or Institute for Research and Education, Rio de Janeiro, Brazil. Electronic address:

Article Synopsis
  • Patients with acute pulmonary embolism (PE) and a patent foramen ovale (PFO) are at a significantly increased risk of ischemic stroke compared to those without a PFO, with stroke rates of 19.5% versus 4.5%, respectively.
  • A systematic review and meta-analysis of 8 studies involving 1,197 patients highlighted this risk, showing a strong association between PFO and stroke in the context of PE (odds ratio of 5.36).
  • The findings also suggest that patients with PFO may experience higher mortality rates during acute PE episodes, indicating a need for careful monitoring and treatment strategies for this group.
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Enhancing therapeutic efficacy: In vivo mechanisms and biochemical effects of lycopene encapsulated in nanomicelles for acute inflammation and lipid metabolism.

Eur J Pharm Biopharm

November 2024

Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro, 21941906, RJ, Brazil; National Institute of Metrology, Quality and Technology, Av. Nossa Sra. das Graças, 50 - Xerém, Duque de Caxias, RJ, 25250-020, Brazil; Rio de Janeiro State University, Laboratory of Radiopharmacy and Nanoradiopharmaceuticals, Rio de Janeiro, 23070200, RJ, Brazil. Electronic address:

Article Synopsis
  • * Lycopene nanomicelles show strong anti-inflammatory and anticancer effects by inhibiting pro-inflammatory pathways and promoting cancer cell death, alongside improving liver health.
  • * Although promising, the research also highlights the need for further investigation into the effects of lycopene on lipid metabolism and emphasizes the importance of safety evaluations for potential clinical use.
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Article Synopsis
  • - This commentary critiques the study "Psychotherapies for the Treatment of Borderline Personality Disorder" by Crotty et al. (2023) due to several methodological issues that undermine its credibility.
  • - Key concerns include poor protocol registration, unclear inclusion/exclusion criteria, discrepancies in authorship, and limited geographical scope without proper justification.
  • - The letter stresses the importance of methodological rigor in systematic reviews, especially those that impact clinical practices and mental health policy.
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Background: Reliable, noninvasive tools to diagnose at-risk metabolic dysfunction-associated steatohepatitis (MASH) are urgently needed to improve management. We developed a risk stratification score incorporating proteomics-derived serum markers with clinical variables to identify high-risk patients with MASH (NAFLD activity score >4 and fibrosis score >2).

Methods: In this 3-phase proteomic study of biopsy-proven metabolic dysfunction-associated steatotic fatty liver disease, we first developed a multi-protein predictor for discriminating NAFLD activity score >4 based on SOMAscan proteomics quantifying 1305 serum proteins from 57 US patients.

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This study evaluated the stability of novel nutraceuticals containing jabuticaba freeze-dried peel (FJP) and a mix of potential probiotic L. fermentum strains [139, 263 and 296 (LfM)] (JM: FJP + LfM; JFM: FJB + LfM + fructooligosaccharides) through determination of thermal stability, viable cell counts, bacterial physiological status, phenolic compound contents, and antioxidant activity during 90 days of storage (11% relative humidity, 4 and 25 ºC). JM and JFM were thermally stable, with satisfactory stability in temperature variations.

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This review systematically explores the emerging perspectives on analytical techniques and machine learning applications in food metabolomics, with a focus on their roles in the era of Industry 4.0. The study emphasizes the utilization of chromatography-mass spectrometry and proton nuclear magnetic resonance spectroscopy as primary tools for metabolic profiling, highlighting their respective strengths and limitations.

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Article Synopsis
  • The study focuses on how aging and loss of sex hormones affect vascular function in women, highlighting their increased risk for cardiovascular disease (CVD).
  • It found that older women show more significant impairment in lower limb conduit artery function compared to the upper limb.
  • Additionally, CVD risk factors, particularly related to lipid levels and insulin sensitivity, have a stronger association with upper limb microvascular function in older women.
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  • * The impact of environmental changes, like rising temperatures and pollution, can worsen disease conditions in aquaculture by enhancing pathogen virulence.
  • * New technologies and biotechnological tools, such as probiotics and metagenomics, are being developed to improve sustainability in aquaculture while reducing the need for antibiotics and better understanding disease mechanisms.
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Assessing the role of deep eutectic solvents in Yarrowia lipolytica inhibition.

J Biotechnol

November 2024

University of Coimbra, CERES, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, Coimbra 3030-790, Portugal. Electronic address:

Article Synopsis
  • Yarrowia lipolytica is recognized for its high enzyme production and ability to grow in dense cultures, making it valuable in biotechnology.
  • The study explored the effects of eighteen deep eutectic solvents (DES) on the yeast's growth, finding most DES inhibited growth compared to a control medium, except for one specific DES combination.
  • Analysis of the enzyme hexokinase (YlHxk) revealed how different DES components interact at a molecular level, suggesting potential pathways for improving biotechnological applications while also hinting at ways to reduce research costs and time.
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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

March 2025

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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Background: Surgical clipping and endovascular coiling are well-established treatments for acutely ruptured intracranial aneurysms leading to acute subarachnoid hemorrhage (aSAH). However, these modalities have limitations, particularly in cases involving wide-necked, bifurcating, or dissecting aneurysms. Flow diverter (FD) devices, initially used for unruptured aneurysms, have emerged as an alternative treatment for ruptured aneurysms despite concerns about hemorrhagic complications.

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The quality of information on anxiety-related websites: A systematic search about the most online item searched after Covid-19 pandemics.

J Psychiatr Res

January 2025

Department of Health Sciences and Public Health, University of Cagliari, Cagliari, Italy, (Cittadella Universitaria, S.P. Monserrato-Sestu km 0, 700, Cagliari, 09042, Italy. Electronic address:

Article Synopsis
  • The study investigates the quality of online information about anxiety treatment in English and Italian websites, assessing factors like scientific quality, readability, and technological aspects.
  • A systematic search was conducted, evaluating 78 Italian and 60 English websites, revealing that English sites generally offered better quality information and higher technological standards, but both were challenging to read.
  • The findings suggest the need for improved online health resources to ensure users can access comprehensive and understandable information about anxiety treatment options.
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  • Trema micranthum, a plant from the Cannabaceae family, shows potential as a new source of cannabinoids like CBD, amid the regulatory issues surrounding Cannabis sativa due to THC content.
  • This study used advanced UHPLC-HRMS/MS techniques to analyze different parts of the plant—fruits, leaves, inflorescences, and stems—for the presence of CBD, THC, and their acidic precursors (THCA A and CBDA).
  • The results revealed significant levels of cannabinoids, especially in the leaves (4.43 µg/g CBD, 1.05 µg/g THC), indicating that Trema micranthum could serve as a viable alternative source for cannabinoid research and production.
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The role of the P2X7 receptor in inactivated SARS-CoV-2-induced lung injury.

Purinergic Signal

November 2024

Laboratory of Immunophysiology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.

Purinergic signaling plays a role in the pathophysiology of different viral infections. Recently, we showed that COVID-19 increases extracellular ATP levels, which may amplify the pro-inflammatory signals in the disease. The P2X7 receptor can be a protagonist in the pro-inflammatory responses.

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Article Synopsis
  • The study assessed the effectiveness and safety of hyperthermic intrathoracic chemotherapy (HITHOC) as an additional treatment for thymic epithelial tumors, focusing mostly on thymomas.
  • A systematic review of 15 studies, including 248 patients, revealed that the combination of HITHOC with cytoreductive surgery had low operative and overall mortality rates (2.42% and 8.32%, respectively) but a significant disease recurrence rate of nearly 26%.
  • The findings highlight the potential benefits of HITHOC for thymomas, showcasing its low risks for complications like pneumonia and acute kidney injury, while also indicating the challenge posed by the high recurrence rate for long-term management.
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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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Could digital twins be the next revolution in healthcare?

Eur J Public Health

November 2024

COPPE-Graduate School and Research in Engineering, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.

A Digital Twin (DT) can be understood as a representation of a real asset, a virtual replica of a physical object, process, or even a system. They have been used in managing healthcare facilities, streamlining care processes, personalizing treatments, and enhancing patient recovery. The potential impact of this tool on our society and its well-being is quite significant.

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Article Synopsis
  • This editorial reviews a paper by Muthu on the application of adipose-derived stem cells (ADSCs) for treating knee osteoarthritis.
  • It contrasts stromal vascular fraction and microfragmented adipose tissue, and compares clinical outcomes with hyaluronic acid, platelet-rich plasma, and bone marrow aspirate concentrate treatments.
  • The piece also addresses the variability in ADSC studies and emphasizes the importance of standardizing protocols for further clinical exploration.
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Pediatric and congenital heart surgery (PCHS) is highly risky. Complications associated with this surgical procedure are mainly caused by the severity of the disease or the unnecessary, late, or premature execution of the procedure, which can be fatal. In this context, prognostic models are crucial to reduce the uncertainty of the decision to perform surgery; however, these models alone are insufficient to maximize the probability of success or to reverse a future scenario of patient death.

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The central aim of this study was to investigate whether male Wistar rats chronically fed a high-fat diet (HFD) over 106 days present high levels of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α), and Na and Ca transport alterations in the left ventricle, together with dyslipidemia and decreased glucose tolerance, and to investigate the influence of Ang-(3-4). The rats became moderately overweight with an expansion of visceral adiposity. Na-transporting ATPases, sarco-endoplasmic reticulum Ca-ATPase (SERCA2a), and the abundance of Angiotensin II receptors were studied together with lipid and glycemic profiles from plasma and left-ventricle echocardiographic parameters fractional shortening (FS) and ejection fraction (EF).

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Article Synopsis
  • Omics techniques were used during the COVID-19 pandemic to enhance our understanding of the virus, find biomarkers for diagnosis and prognosis, and identify new drug targets.
  • The study analyzed saliva samples from both COVID-19 positive and negative volunteers during the Omicron variant's rise, using non-target metabolomics to identify potential biomarkers for screening.
  • The developed model successfully distinguished COVID-19 positive individuals with high rates of sensitivity, specificity, and accuracy, linking the identified salivary signatures to immune responses and suggesting a need for further research on endocrine imbalances in mild cases.
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This study aimed to estimate the association of time of energy intake with weight status, diet quality, and sociodemographic characteristics in Brazil. This cross-sectional study used data from a nationally representative survey with 44.744 individuals (≥10 years old).

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