Publications by authors named "Medeiros E"

The fetal brain is susceptible to programming effects during pregnancy, potentially leading to long-term consequences for offspring's cognitive health. Fructose intake is thought to adversely affect fetal brain development, whereas physical exercise before and during pregnancy may be protective. Therefore, this study aimed to assess biochemical and genotoxic changes in maternal hippocampi and behavioral, genotoxic, and biochemical alterations in offspring hippocampi.

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Overgrazing is the primary human-induced cause of soil degradation in the Caatinga biome, intensely threatening lands vulnerable to desertification. Grazing exclusion, a simple and cost-effective practice, could restore soils' ecological functions. However, comprehensive insights into the effects of overgrazing and grazing exclusion on Caatinga soils' multifunctionality are lacking.

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The objective of this study was to conduct a serological investigation of Schmallenberg virus (SBV) infection in cattle raised in the State of Alagoas. A total of 460 serum samples from the Agricultural Defense Agency of Alagoas (ADEAL) serum bank were analyzed. These samples were collected from unvaccinated cattle on 100 properties across 99 municipalities in Alagoas, representing the three mesoregions: Agreste, Leste, and Sertão.

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In this work, a polymeric blend of polyaniline (PAni) and chitosan (Chi), modified with Sucrose Octaacetate (SOA), was synthesized and characterized using different techniques. The blend was used as an adsorbent to remove Remazol Black (RB) dye from aqueous solutions. The blend was synthesized using the chemical oxidation method with ammonium persulfate as the oxidizing agent.

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Unlabelled: is an emerging fungal pathogen notable for its resistance to multiple antifungals and ability to survive in various environments. Understanding the interactions between and environmental protozoa, such as could provide insights into fungal adaptability and pathogenicity. Two isolates (MMC1 and MMC2) were co-cultured with to examine interaction dynamics, survival, stress responses, growth, virulence, biofilm formation, and antifungal susceptibility.

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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 work presents the successful production of highly porous 3D nanofibrous hybrid scaffolds of polylactic acid (PLA)/polyethylene glycol (PEG) blends with the incorporation of calcium phosphate (CaP) bioceramics by a facile two-step process using the solution blow spinning (SBS) technique. CaP nanofibers were obtained at two calcium/phosphorus (Ca/P) ratios, 1.67 and 1.

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Biochar is an effective material for enhancing soil ecosystem services. However, the specific impacts of biochar on microbial indicators, particularly in degraded soils, remain poorly understood. This study aimed to evaluate the effects of biochar produced from cashew residues and sewage sludge, in a highly degraded soil, on microbial indicators.

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In the parameter spaces of nonlinear dynamical systems, we investigate the boundaries between periodicity and chaos and unveil the existence of fractal sets characterized by a singular fractal dimension that deviates greatly from the fractal sets in their vicinity. This extreme fractal dimension stands out from the typical value previously considered universal for these parameter boundaries. We show that such singular fractal sets dwell along parameter curves, called extreme curves, that intersect periodicity cascades at their centers of stability across all scales of parameter spaces.

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Article Synopsis
  • The study investigates the immune response of health care workers 6 months after receiving two doses of the CoronaVac vaccine, focusing on antibody levels and seropositivity rates.
  • A total of 325 health care workers participated, with only 18.8% showing positive antibody levels against the virus, implying that most had insufficient immunity.
  • The findings suggest a need for further research on how long postvaccination immunity lasts and the timing for potential booster doses.
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  • Invasive candidiasis (IC) caused by non-albicans Candida is on the rise globally, especially in pediatrics, but there is limited data on its characteristics and treatment responses in children.
  • A study in a southern Brazilian children's hospital analyzed 123 non-duplicate Candida isolates from 2016 to 2021, finding a range of IC incidence between 0.88-1.55 cases per 1000 hospitalized patients and a mortality rate of 20.3%, with many cases occurring in patients under 13 months and linked to ICU admissions.
  • The research noted that the predominant species were non-albicans Candida (70.8%), with most isolates producing biofilm, but there was no significant clonal
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The herbicide mixture diclosulam + halauxifen appears to be an alternative for the control of Conyza spp.; however, the spray volume may result in different spray deposition effects on the target and, therefore, on the control. Therefore, the objective of this study was to evaluate the impact of different spray volumes of diclosulam + halauxifen on the control of and damage to the leaf surface of Conyza spp.

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Chalcones are a group of molecules with recognized biological potential against many diseases, including cancer. Thus, studies on this structure and derivatives have become an attractive chemical strategy to optimize their observed biological activities. One of the synthetic routes used to obtain chalcone derivatives is esterification using either commercial acid chlorides or carboxylic acids.

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The coinfection between malaria (ML) and arboviral diseases represents a major global public health problem, particularly in tropical and subtropical countries. Despite its relevance, this topic is still insufficiently discussed in the current literature. Here, we aimed to investigate the worldwide distribution, symptoms, and diagnosis during coinfection between ML and arboviral diseases.

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Despite the high prevalence of localised prostate cancer (LPC) and locally advanced prostate cancer (LAPC), evidence on the characteristics of patients, treatments and clinical outcomes stratified by disease risk is limited. The PEarlC study was conducted to characterise a cohort of patients with early-stage prostate cancer that included real-world clinical outcomes. Retrospective data from a cohort of patients diagnosed with LPC/LAPC between 2015 and 2017 and followed up until December 2020 at a Portuguese comprehensive cancer centre (IPO Porto) was analysed.

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Primary hypokalemic periodic paralysis (HypoPP) is a skeletal muscle channelopathy most commonly caused by pathogenic variants in the calcium channel gene, CACNA1S. HypoPP can present with attacks of paralysis and/or permanent muscle weakness. Previous studies have shown that patients with HypoPP can have impaired quality of life (QoL).

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Maize (Zea mays L.) is of socioeconomic importance as an essential food for human and animal nutrition. However, cereals are susceptible to attack by mycotoxin-producing fungi, which can damage health.

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The parasite Leishmania (Viannia) braziliensis is widely distributed in Brazil and is one of the main species associated with human cases of different forms of tegumentary leishmaniasis (TL) such as cutaneous leishmaniasis (CL) and mucosal leishmaniasis (ML). The mechanisms underlying the pathogenesis of TL are still not fully understood, but it is known that factors related to the host and the parasite act in a synergistic and relevant way to direct the response to the infection. In the host, macrophages have a central connection with the parasite and play a fundamental role in the defense of the organism due to their ability to destroy intracellular parasites and present antigens.

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We conducted a comprehensive comparative analysis of extracellular vesicles (EVs) from two strains, Neff (environmental) and T4 (clinical). Morphological analysis via transmission electron microscopy revealed slightly larger Neff EVs (average = 194.5 nm) compared to more polydisperse T4 EVs (average = 168.

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The present work aimed to study different parts of colored cotton waste through energetic characterization and analytical flash pyrolysis. Stalks and bolls of BRS cotton cultivars from Sementes do Brasil (Green, Ruby, Topaz and Jade) were studied, using white cotton (BRS 286) as a comparison. The energetic potential of biomass was evaluated by bulk density, High Heating Value (HHV), proximate and ultimate analysis, compositional and thermogravimetric analysis (TGA).

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Alzheimer's disease (AD) and depression are inflammatory pathologies, leading to increased inflammatory response and neurotoxicity. Therefore, this study aimed to evaluate the effect of the treatment with fluoxetine and/or galantamine and/or donepezil on the levels of proinflammatory and anti-inflammatory cytokines in a mixed animal model of depression and dementia. Adult male Wistar rats underwent chronic mild stress (CMS) protocol for 40 days and were subjected to stereotaxic surgery for intra-hippocampal administration of amyloid-beta (Aꞵ) peptide or artificial cerebrospinal fluid (ACSF) to mimic the dementia animal model.

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Studies have underscored a growingdemand for innovative practices in the cultivation of seedlings from forest species, with a notable emphasis on the utilization of organic waste, inoculation with arbuscular mycorrhizal fungi (AMF), and phosphate fertilization. This study aimed to evaluate the impact of organic residues, inoculation with AMF, and phosphorus on the growth and quality of Peltophorum dubium (Spreng.) Taub.

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Article Synopsis
  • Older adults, especially those aged 80 and above, face a growing risk of cognitive impairment, which this study aimed to assess in community-dwelling seniors.
  • The research involved 165 participants who were interviewed using health and demographic questionnaires, with results indicating that 35.2% exhibited poor cognitive performance as measured by the Mini-Mental State Examination (MMSE).
  • Key factors associated with cognitive impairment included body mass index (BMI), income level, functional disability, and anxiety, although the study has limitations like its cross-sectional nature and a small sample size.
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Background: Catheter-Associated Urinary Tract Infections (CAUTIs) frequently occur in the intensive care unit (ICU) and are correlated with a significant burden.

Methods: We implemented a strategy involving a 9-element bundle, education, surveillance of CAUTI rates and clinical outcomes, monitoring compliance with bundle components, feedback of CAUTI rates and performance feedback. This was executed in 299 ICUs across 32 low- and middle-income countries.

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Utilizing a paradigmatic model for the motion of interacting self-propelled particles, we demonstrate that local accelerations at the level of individual particles can drive transitions between different collective dynamics, leading to a control process. We find that the ability to trigger such transitions is hierarchically distributed among the particles and can form distinctive spatial patterns within the collective. Chaotic dynamics occur during the transitions, which can be attributed to fractal basin boundaries mediating the control process.

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