Publications by authors named "Ribeiro G"

Influenza A and B viruses represent significant global health threats, contributing substantially to morbidity and mortality rates. However, a comprehensive understanding of the molecular epidemiology of these viruses in Brazil, a continental-size country and a crucial hub for the entry, circulation, and dissemination of influenza viruses within South America, still needs to be improved. This study addresses this gap by consolidating data and samples across all Brazilian macroregions, as part of the Center for Viral Surveillance and Serological Assessment project, together with an extensive number of other Brazilian sequences provided by a public database during the epidemic seasons spanning 2021-23.

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COVID-19 is an infectious disease whose prevention is significantly aided by vaccination, which reduces both case severity and mortality. Despite the safety and efficacy of vaccines, acceptance is not universal, and understanding of the factors influencing vaccination decisions and hesitancy remains limited. This review aims to identify and analyze studies addressing two key questions: what influences the decision to vaccinate and what factors are associated with vaccine hesitancy.

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Iron oxide nanoparticles (IONPs) are prominent in nanomedicine, cosmetics, and environmental applications. However, their increasing production, use, and release into the environment raises concerns about their potential risks to aquatic life and human health. This study aimed to evaluate the bioaccumulation, as concentration of small, medium and large iron aggregates in the digestive tubules, histopathological changes, and inflammatory responses in the freshwater snail Biomphalaria glabrata following chronic exposure to gluconic-acid functionalized IONPs (GLA-IONPs) compared to their dissolved counterpart (FeCl).

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In this report, we present a case of a triple clavicle injury, acromioclavicular joint (ACJ) dislocation, a middle third clavicle fracture, and a sternoclavicular joint (SCJ) subluxation, and describe its successful surgical treatment. A 49-year-old female patient sustained a 3 m fall, resulting in direct trauma to her left shoulder. Initial radiographs and computed tomography (CT) scans revealed a displaced middle third clavicle fracture, a high-grade ACJ dislocation, and a posterior SCJ subluxation.

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Background: This study investigated the self-rated general health, mental health, and work absenteeism among patients with laboratory-confirmed chikungunya.

Methods: Telephone interviews were conducted with 63 patients ≥22 months after infection.

Results: Patients who reported (N=42) or did not report (N=21) chronic arthralgia, defined by duration ≥90 days, had different frequencies for low scores for general health (68.

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Postingestive nutrient stimulation conditions food preferences through striatal dopamine and may be associated with blunted brain responses in obesity. In a cross-sectional study, we tested flavor-nutrient conditioning (FNC) with maltodextrin-enriched yogurt, with maltodextrin previously optimized for concentration and dextrose equivalents (n = 57), and to mask texture cues (n = 102). After conditioning, healthy volunteers (n = 52) increased preference for maltodextrin-paired (+102 kcal, CS+), relative to control (+1.

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Article Synopsis
  • Arbovirus outbreaks are on the rise globally, especially in Brazil, raising concerns about blood safety during these events.
  • Researchers conducted a study involving blood donors across four Brazilian regions to test for Dengue, Zika, and Chikungunya using nucleic acid testing (NAT).
  • The study found a small percentage of donors infected with Dengue and Chikungunya, indicating the need for ongoing NAT screening to enhance blood safety during outbreaks.
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Objective: to summarize the evidence on the electrophysiological findings in the auditory brainstem response (ABR) in infants with DS.

Material And Methods: This is a systematic review study, whose protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO CRD42023424139) and conducted in accordance with the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Observational studies were included: cross-sectional and cohort studies that performed ABR evaluation in infants with DS up to two years of age, which had their results compared with normal infants, of the same age group.

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The disaccharide trehalose plays a crucial role in multiple facets of the stress biology of yeasts and fungi. Here, we evaluate the properties, cellular and ecophysiological roles, metabolism, and stress-protection mechanisms of trehalose. We integrate disparate sources of knowledge across these topics, and bring new information about the mechanisms by which trehalose stabilises biomacromolecules and how trehalose metabolism is regulated thus giving rise to its diverse roles in fungi including stress protector, carbohydrate reserve, and regulatory/signaling molecule.

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Introduction: Dengue cases in the Americas in 2024 have reached record highs, especially in Brazil. However, surveillance remains suboptimal and new methods are needed to monitor Dengue Virus (DENV) spread. To assess whether wastewater-based epidemiology would be a useful tool, we investigated the presence of DENV RNA in dengue patients' urine and oral fluid from an endemic area to inform how shedding in these fluids occurs and provide insight for wastewater surveillance.

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Bacterial cellulose (BC) has been used for various applications; however, studies investigating the immunohistochemical characteristics of the inflammatory and scarring component in BC implanted in the peritoneum in vivo have not yet been fully described. This study aimed to evaluate the systemic and organic safety of BC through oxidative stress, blood, and serum biochemical markers, as well as the late inflammatory response in rats, using histopathology and immunohistochemistry. Forty-three rats (26 males; 17 females) received BC in the peritoneal cavity (implanted group-IG), while twenty-seven rats (12 males; 15 females) served as the control (sham group-SG).

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Unlabelled: Β-glucosidase (BGLs) act synergistically with endoglucanases and exoglucanases and then are of great interest for biomass conversion into bioethanol. Thus, the aim of the current study is to produce a recombinant β-glycosidase from expressed in cells. Enzyme coding sequence expression was confirmed through Sanger sequencing after using wheat bran (WB) and carboxymethylcellulose (CMC) as fungal growth media.

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Article Synopsis
  • * Diagnosis is based on recognizing specific characteristics of the lesions and the chronic nature of the disease, without the need for definitive biological tests or biopsies.
  • * Treatment options depend on the disease's severity and can involve antibiotics, hormonal therapies, and surgery, with imaging techniques like high-frequency ultrasound being essential for accurate assessment and monitoring of the condition.
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  • Ideal partner preferences shape key insights in human mating research, but recent studies face issues such as inconsistent analysis methods and varying findings across different populations.
  • A large-scale study involving 10,358 participants from 43 countries revealed significant effects of preference matching, particularly when analyzing traits collectively, with some traits showing minimal impact on partner evaluations.
  • The research also highlighted gender differences, where both men and women misjudged the importance of traits like attractiveness and earning potential in their stated preferences compared to actual revealed preferences.
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To remediate surface water as the Doce River and spring waters from Minas Gerais, Brazil, this study examined the possibility of natural serpentinite mining tailings as a sustainable alternative for removing aluminum (III), iron (III), and manganese (II). The study used a Box-Behnken experimental design to examine how initial metal concentration, adsorbate dosage, and adsorption time affect metal removal effectiveness. Results demonstrated impressive performance, with removal rates exceeding 80 % for Al(III) and Fe(III) within the initial 5 min, and 60 % for Mn(II) within 30 min.

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Article Synopsis
  • - The study examines the impact of platelet-rich plasma (PRP) on uterine inflammation and pregnancy rates in jennies (female donkeys) inseminated with frozen donkey semen, which generally shows lower success in jennies compared to mares.
  • - Three groups of jennies were tested: a control group with no treatment, a group receiving a single PRP infusion, and a group getting double PRP infusions around ovulation and artificial insemination (AI).
  • - Results indicated that while S-PRP reduced intrauterine fluid (IUF) accumulation shortly after AI, no significant differences were observed in pregnancy rates among groups, suggesting PRP treatments did not effectively improve outcomes for jennies
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This study aimed to evaluate the feasibility of performing multiple testicular biopsies in rams using Tru-cut® needles, assessing histological structure, gene expression, and potential complications such as effects on semen quality, testicular blood flow, and ultrasonographic echotexture. In Exp. 1, six mature rams underwent testicular biopsies at intervals (0, 3, 6, 12, 24, and 48 h) using a 16 G Tru-cut® needle, with alternating testes for each collection.

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  • - This study investigated how different ultimate pH levels in Nellore cattle meat (normal, intermediate, high) affect the lipid and metabolite profiles in both the lipidome and mitochondrial fraction after 3 and 21 days postmortem.
  • - The analysis revealed that high pH beef is associated with increased ceramides linked to cell death and decreased stability-related lipids, along with lower carnitine levels, compared to normal pH beef.
  • - Aging time also influenced lipid and metabolite content, with intermediate pH beef showing upregulations in compounds related to energy and metabolism, highlighting significant metabolic differences among the various pH classifications.
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Article Synopsis
  • Metagenomic research revealed that mosquito viromes are more diverse than just pathogenic viruses that affect humans, highlighting the complexity of mosquito-borne viruses.* -
  • In a study conducted on 866 female mosquitoes in São Paulo Zoo, a new virus was identified through RNA extraction and next-generation sequencing, showing potential as a new species of iflavirus.* -
  • These findings enhance our understanding of viral diversity in mosquitoes and provide a valuable genomic reference, aiding future research in virology and metagenomics.*
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Background: Consumption of ultra-processed foods (UPFs) is a risk factor for several cardiovascular diseases and mortality, with potential physiological mechanisms including elevated serum cholesterol levels.

Objectives: To analyze the association between hypercholesterolemia and the isolated and simultaneous consumption of UPFs in older adults.

Methods: This is a cross-sectional epidemiological study conducted with 1322 Brazilian older adults (mean age of 70.

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Article Synopsis
  • Respiratory illnesses caused by viral infections affect all age groups but are challenging to diagnose due to overlapping symptoms and incomplete local diagnostic panels.
  • A metagenomic study of 66 nasopharyngeal swab samples from patients with acute respiratory issues revealed significant undetected viruses, like rhinoviruses and enterovirus D68, as well as other notable viruses such as human herpesvirus and human parvovirus B19.
  • The findings highlight the critical role of viral metagenomics in uncovering overlooked viruses, which could inform public health strategies to improve diagnostics and patient care.
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The complete absence of the nose, arhinia, is a malformation most often associated with severe brain malformations. However, arhinia can be isolated, but only a few cases have been described. The prenatal diagnosis of isolated arhinia is also rarely described, with only three cases describing their follow-up, mostly in the first months of life.

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Dengue virus (DENV) is currently causing epidemics of unprecedented scope in endemic settings and expanding to new geographical areas. It is therefore critical to track this virus using genomic surveillance. However, the complex patterns of viral genomic diversity make it challenging to use the existing genotype classification system.

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Habronemosis, also known as habronemiasis or habronematidosis, is a parasitic disease of equids caused by the larval stages of Habronematidae nematodes (Habronema muscae, Habronema microstoma, and Draschia megastoma) that are transmitted by muscid flies. The presence of aberrant infective larvae in the cutaneous and conjunctival tissues of these hosts results in granulomatous, exudative, and ulcerated lesions, also known as "summer sores." In this study, we present a retrospective analysis of habronemosis cases in horses from the municipality of Lages, located on the Santa Catarina Plateau, a region with high altitudes and a temperate climate that differs from regions of Brazil where such parasitosis usually occurs.

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Objective: Present the experience of a rapid response service to support decision-making in health systems.

Methodology: Description of the processes and results of a service that produces rapid reviews and evidence maps to support decision-making under the National Health Promotion Policy, as well as the authors' perception of the work process.

Results: The rapid response service started in 2020.

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