Publications by authors named "Oliveira W"

Defatting dehulled hemp seeds is a crucial step prior to protein extraction. However, conventional methods rely on flammable solvents, posing significant health, safety, and environmental concerns. Additionally, hemp protein has poor extractability, challenging functionality, and flavor limitations, restricting its broader application in foods.

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Atherosclerotic vascular changes can begin during childhood, providing risk for cardiovascular disease (CVD) in adulthood. Identifiable risk factors such as dyslipidemia accelerate this process for some children. The apolipoprotein B (APOB) gene could help explain the inter-individual variability in lipid levels among young individuals and identify groups that require greater attention to prevent CVD.

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Fatty acids (FAs) are biochemical components of food, essential for human health due to their numerous biological functions. However, many of then if consumed in excess can trigger disfunctions/illness. Therefore, analytical methods, such as gas chromatography (GC-FID) are essential for the accurate identification and quantification of FAs, playing an important role in food safety and quality assessment.

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Invasive alien species have the potential to introduce pathogens of economic and health importance in new environments. In Brazil, parasites from the non-native European brown hare can be a threat to humans, domestic animals, and wildlife. Therefore, we aimed to describe the helminth fauna of the invasive European brown hare in three Brazilian states (São Paulo, Paraná, and Rio Grande do Sul).

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In diabetes, tissue repair is impaired, increasing susceptibility to Staphylococcus aureus infections, a pathogen commonly found in wounds. The emergence of S. aureus strains that are highly resistant to antimicrobial agents highlights the urgent need for alternative therapeutic options.

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  • * A study of 402 Brazilian CD patients analyzed genetic polymorphisms in genes related to CD and its progression to determine associations with CARD severity, using logistic regression to adjust for factors like age and treatment.
  • * Although some genetic variants suggested potential links to CARD severity, no strong associations were confirmed after adjusting for multiple comparisons, while a specific haplotype showed protective effects against severe CARD progression.
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The fresh fruits of 'Grande Naine' (Cavendish AAA- spp.) dominate the world market, especially in countries with a population in a situation of social vulnerability. However, Fusarium wilt, caused by the fungus f.

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  • Banana breeding involves creating hybrids with varying ploidy levels (diploid, triploid, tetraploid) to enhance desirable traits and increase genetic diversity in bananas, focusing on resistance to diseases like yellow and black Sigatoka and Fusarium wilt.
  • Embrapa's Banana Genetic Breeding Program aims to cross improved diploids with commercial triploids to boost both genetic variability and agronomic performance.
  • A genetic diversity study using DNA markers identified key improved diploid genotypes for breeding, revealing significant genetic differences that can guide effective crossings to maintain beneficial traits in commercial banana varieties.
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  • - The study focuses on hepatobiliary platynosomosis (HP) caused by the parasite Platynosomum illiciens in black-tufted marmosets in Central Brazil, analyzing autopsy data from 2006 to 2021 to understand its impact on both captive and free-ranging populations.
  • - Results show that 10.8% of black-tufted marmosets autopsied had HP, with a significantly higher prevalence in captive marmosets (49.6%) compared to free-ranging ones (6.5%), particularly during the wet season.
  • - Pathological findings indicated severe liver and bile duct damage in affected marmosets, and the study emphasizes the urgent need for better management and preventive measures
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Earth's magnetic field exhibits a dominant dipole morphology. Notwithstanding, significant deviations from the dipole are evident today, particularly the South Atlantic Anomaly (SAA), characterized by anomalously low-field intensity and high directional variability, diminishing the field's shielding effect. To assess the persistence of SAA-like features over multimillion-year scales, we combine paleomagnetic data from Trindade Island (20°30'S, 29°22'W) with an evaluation of paleosecular variation (PSV) over the past 10 Myr.

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  • Otoliths play a crucial role in marine biology, aiding in studies related to fish metabolism, age, growth, and stock identification for sustainable management.
  • The research utilizes micro-computed tomography to analyze otolith density variations but notes a lack of methodologies for comparative studies, leading to the application of the Ball Mapper technique in this analysis.
  • This study emphasizes reducing computational costs through probabilistic sampling, validating sample representativeness, and uncovering significant correlations between age and network properties, showcasing the effectiveness of the Ball Mapper in processing tomographic images.
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The objective of this systematic review (SR) was to select studies on the use of gene editing by CRISPR technology related to plant resistance to biotic stresses. We sought to evaluate articles deposited in six electronic databases, using pre-defined inclusion and exclusion criteria. This SR demonstrates that countries such as China and the United States of America stand out in studies with CRISPR/Cas.

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A monochromatic red emitting nonacoordinate organoeuropium complex with the formula [Eu(hfaa)(Ph-TerPyr)] (Eu-1) incorporating hexafluoroacetylacetone (hfaa) primary ligands and a tridentate 4'-phenyl-2,2':6',2''-terpyridine (Ph-TerPyr) ancillary ligand has been synthesized. The complex was characterized by analytical and spectroscopic methods, and its structure was established by single crystal X-ray diffraction (SC-XRD) analysis at low temperature, which explicitly confirms that the coordination sphere is composed of a EuON core. Under the UV excitation, Eu-1 displayed typical red emission in solution with a long-excited state lifetime ( = 1048.

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  • Glyphosate (GLY), a commonly used herbicide, poses environmental risks as it is often found in water, necessitating new strategies for its remediation.
  • This study showcases Serratia sp. AC-11, a microorganism from a tropical peatland, used in a microbial fuel cell (MFC) combined with an electron-Fenton (EF) process, achieving 100% glyphosate degradation in the anodic chamber within 48 hours.
  • The research highlights Serratia sp. AC-11’s dual role in both biodegrading glyphosate and generating electrons for the EF process, suggesting its potential in sustainable bioelectrochemical environmental remediation.
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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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In this review, we discuss dengue surveillance, prevention, and control measures in Brazil. Data on dengue epidemics between 2000 and 2024 indicates an increase in the number of dengue cases and deaths. Global climate change is a key driver of this growth.

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The search for new metal-organic compounds as candidates for quantum information processing technologies is in the spotlight. Several metal ions and organic linkers have been used to obtain such compounds. Herein, we describe the synthesis, crystal structures, and cryomagnetic properties of two air-stable isostructural neodymium(III) and europium(III) one-dimensional (1D) coordination polymers of formula [Nd(Hmpa)(DMSO)] (1) and [Eu(Hmpa)(DMSO)] (2) [Hmpa=N-(4-methylphenyl)oxamate, and DMSO=dimethylsulfoxide].

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Intermediate wheatgrass (IWG) is a promising perennial grain explored for mainstream food applications. This study investigated the effects of different germination temperatures (10, 15, and 20 °C) and durations (2, 4, and 6 days) on IWG's volatile and fatty acid (FA) profiles. A method using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS) was optimized through response surface design to extract the volatile compounds, achieving ideal extraction conditions at 60 °C for 55 min.

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This paper addresses a relevant problem in Forensic Sciences by integrating radiological techniques with advanced machine learning methodologies to create a non-invasive, efficient, and less examiner-dependent approach to age estimation. Our study includes a new dataset of 12,827 dental panoramic X-ray images representing the Brazilian population, covering an age range from 2.25 to 96.

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Herein we report the crystal structures of two benzodiazepines obtained by reacting N,N'-(4,5-diamino-1,2-phenylene)bis(4-methylbenzenesulfonamide) (1) or 4,5-(4-methylbenzenesulfonamido)benzene-1,2-diaminium dichloride (1·2HCl) with acetone, giving 2,2,4-trimethyl-8,9-bis(4-methylbenzenesulfonamido)-2,3-dihydro-5H-1,5-benzodiazepine, CHNOS (2), and 2,2,4-trimethyl-8,9-bis(4-methylbenzenesulfonamido)-2,3-dihydro-5H-1,5-benzodiazepin-1-ium chloride 0.3-hydrate, CHNOS·Cl·0.3HO (3).

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  • Modern cardiovascular implantable electronic devices (CIEDs) are designed to withstand external electric shocks, but the effects of lightning on these devices remain uncertain.
  • A case involving a 74-year-old man with a pacemaker struck by lightning revealed significant battery and lead damage, leading to the need for device replacement.
  • The differences in reactions to lightning between this patient and others may be influenced by factors like the type of pacemaker, the way the electric current spreads, and how the injury occurred.
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  • Atrazine is a widely used herbicide that is banned in some countries and poses a risk to non-target animals, with debates ongoing about its impact on animal mortality.
  • A meta-analysis of 107 datasets demonstrated that atrazine significantly increases mortality rates in various animal species, including nematodes, amphibians, molluscs, insects, and fish, particularly affecting larvae and juveniles.
  • The study also found that both commercial and pure forms of atrazine contribute to high mortality rates, and when combined with other pesticides, they can have a synergistic effect, highlighting a need for further research and potential regulatory changes.
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Eugenia flavescens is a species cultivated in Brazil for food purposes. Given the potential application of essential oils from plants of the genus Eugenia, this study was carried out to investigate the chemical composition, acute toxicity, antioxidant, antinociceptive, gastroprotective activities, and possible mechanisms of action of the essential oil from the leaves of E. flavescens (EOEf).

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The limited arsenal of antifungal drugs have prompted the search for novel molecules with biological activity. This study aimed to characterize the antifungal mechanism of action of Eugenia uniflora extract and its synergistic activity with commercially available antifungal drugs on the following Candida species: C. albicans, C.

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