Publications by authors named "Edson da Silva"

is known for its potential antioxidant and anti-inflammatory properties, attributed to triterpenes, flavonoids, and tannins. This study aimed to optimise the extraction process for aerial parts of using vortex extraction. A Box-Behnken experimental design coupled with response surface methodology was employed to evaluate the effects of three independent variables: sample-to-solvent ratio, velocity, and temperature.

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Background Dietary antioxidant Capacity (DaC) has been used as a tool for predicting plasma and dietary antioxidant concentrations. However, the DaC association with oxidative stress (OS) and body composition parameters is an unexplored area, mainly in physically active individuals. Given the potential for increased OS in physically active individuals, it becomes crucial to investigate this association.

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This study aimed to verify the effect of grape juice () intake on exercise-induced muscle damage (EIMD) and exercise performance parameters (5 km running time-trial (TT), running economy, and countermovement jump (CMJ)). Twenty trained male runners were randomized into two blinded groups and consumed either placebo ( = 9) or grape juice ( = 11) for six consecutive days (600 mL/day). On the fourth day, the participants performed a downhill running (-15%) at speed that elicited 70% V̇Omax for 20 min, to induce muscle damage, followed by assessment of running economy, 5 km TT, and CMJ tests.

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Article Synopsis
  • - The research aimed to understand how co-inoculating maize plants with specific bacteria and using nitrogen fertilizers can improve nitrogen fixation and recovery from fertilizers.
  • - It tested different seed inoculations and nitrogen application levels, finding that bacterial co-inoculation boosted photosynthesis and water efficiency, especially when nitrogen availability was low.
  • - The study concluded that using a moderate amount of nitrogen (120-180 kg N/ha) alongside bacterial co-inoculation resulted in the best nitrogen-use efficiency and higher maize yields, while excessive nitrogen reduced bacteria's nitrogen-fixing abilities.
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This study evaluated the oil content obtained from andiroba seeds by pressurized n-propane at different conditions of temperature (25, 35, and 45 °C) and pressure (40, 60, and 80 bar), and conventional extraction technique using n-hexane as the solvent. Kinetic extraction curves were fitted using Sovová's mathematical model. The chemical characterization of the oil was reported as well as the protein content in the extraction by-product.

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This study analysed extracts obtained from the leaves of , , and to determine their chemical composition, antioxidative properties, and α-glucosidase inhibitory capacity. By using liquid chromatography with a diode array detector, we identified chlorogenic acids, flavonoids, tannins, proanthocyanidins, saponins, and triterpenes in the extracts. The antioxidant activities of the extracts were found to be directly related to their total phenolic, flavonoid content and enzyme inhibition.

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Background: Considering the challenges posed by nitrogen (N) pollution and its impact on food security and sustainability, it is crucial to develop management techniques that optimize N fertilization in croplands. Our research intended to explore the potential benefits of co-inoculation with Azospirillum brasilense and Bacillus subtilis combined with N application rates on corn plants. The study focused on evaluating corn photosynthesis-related parameters, oxidative stress assay, and physiological nutrient use parameters.

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Lipases represent versatile biocatalysts extensively employed in transesterification reactions for ester production. Ethyl oleate holds significance in biodiesel production, serving as a sustainable alternative to petroleum-derived diesel. In this study, our goal was to prospect lipase and assess its efficacy as a biocatalyst for ethyl oleate synthesis.

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Mono- and diglycerides play a crucial role in the food industry as multifunctional food additives and emulsifiers. Their importance stems from their unique properties, which allow them to improve the quality, texture, and stability of various food products. Here, results of the kinetic modeling of the mono- and diglycerides synthesis mediated by the lipase Lipozyme® TL 100 L immobilized on the clayey support Spectrogel® type C are reported.

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Background: Diabetes mellitus is a chronic disease that is growing worldwide. It is estimated that 15.7 million people aged between 20 and 79 years live with diabetes in Brazil, and the majority of cases are type 2 diabetes (T2D).

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To examine the effects of 7-days juçara powder (JP) intake on oxidative stress biomarkers and endurance and sprint cycling performances. In a randomized, placebo-controlled, crossover, and triple-blind study, 20 male trained cyclists were assigned to intake 10 g of JP (240 mg anthocyanins) or placebo (PLA) for 7 days and performed a cycling time-to-exhaustion (TTE). A 5 s cycling sprint was performed before and after the cycling TTE.

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Background: The maximal running speed (V) determined on a graded treadmill test is well-recognized as a running performance predictor. However, few studies have assessed the variables that predict V in recreationally active runners.

Methods: We used a mathematical procedure combining Fick's law and metabolic cost analysis to verify the relation between (1) V versus anthropometric and physiological determinants of running performance and, (2) theoretical metabolic cost versus running biomechanical parameters.

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Background: Ultraprocessed foods (UPFs) contribute almost one-fifth of the calories consumed by the Brazilian population. This consumption has been favored by aspects such as the ease of acquisition and low cost of this food group. Initiatives focused on supporting and promoting healthy eating practices have been implemented.

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Background: According to the last 2023 Monkeypox (Mpox) Outbreak Global Map from the Centres for Disease Control and Prevention (CDC), more than 100 countries with no Mpox infection report cases. Brazil stands out in this group and is the second country with the highest number of cases in the last outbreak.

Objective: To contribute to knowledge of the virus infection effects in a cellular model, which is important for diagnosis infections not yet included in a provider´s differential diagnosis and for developing viral inhibition strategies.

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Leishmaniasis is a neglected tropical disease affecting millions of people worldwide. A centenary approach to antimonial-based drugs was first initiated with the synthesis of urea stibamine by Upendranath Brahmachari in 1922. The need for new drug development led to resistance toward antimoniates.

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Objective: To evaluate the effects of supplementation with whey protein combined with vitamins C and E on inflammatory markers in hemodialysis (HD) patients.

Design And Methods: This was a pioneer, randomized and double-blinded study. Patients were randomized into two groups and stratified by HD frequency.

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Introduction And Aims: The intensive cropping system and imbalance use of chemical fertilizers to pursue high grain production and feed the fast-growing global population has disturbed agricultural sustainability and nutritional security. Understanding micronutrient fertilizer management especially zinc (Zn) through foliar application is a crucial agronomic approach that could improve agronomic biofortification of staple grain crops. The use of plant growth-promoting bacteria (PGPBs) is considered as one of the sustainable and safe strategies that could improve nutrient acquisition and uptake in edible tissues of wheat to combat Zn malnutrition and hidden hunger in humans.

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Article Synopsis
  • By October 2022, there were over 76,000 reported mpox cases globally, with a significant number occurring in Latin America, specifically Rio de Janeiro, where a study analyzed suspected and confirmed cases in a local infectious diseases center.
  • The study involved 342 patients, finding that 60.8% were confirmed cases, predominantly affecting cisgender men aged 30-39, many of whom reported recent sexual activity and had higher rates of HIV and other STIs compared to non-confirmed cases.
  • The research revealed that confirmed cases had more severe symptoms, including genital and anal lesions, and highlighted the importance of sexual contact in the spread of mpox, alongside concerns about co-infections with STIs.
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Cambess (pequi) is the fruit of the tree found in the Brazilian Cerrado (savanna). Supercritical fluids have been used to effectively extract bioactive chemicals. In light of the paucity of research on the supercritical extraction of pequi, in this study, experimental tests were conducted on the extraction of pequi almond oil using supercritical CO the optimal extraction conditions were determined, and the fatty acids and active compounds in the oil were characterized.

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  • Following the 2018 diet and exercise guidelines from WCRF/AICR might reduce oxidative stress and improve quality of life for breast cancer survivors.
  • The study observed 78 women undergoing adjuvant treatment to evaluate how well they adhered to these recommendations and its correlation with oxidative stress biomarkers.
  • Results indicated that those with low-medium adherence experienced higher oxidative damage, while high adherence showed better antioxidant stability and protection against oxidative stress.
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We aimed to analyse the relationship of peak torque (PT) of the knee extensors (Ext) and flexors (Fle) with age, and the relationship between conventional ratio and age progression in volleyball players. A total of 41 elite male volleyball players (age: 25.0 ± 6.

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Enteroviruses (EV) are predominantly enteric viruses, present in all parts of the world causing disease in humans with a broad spectrum of clinical presentations. The purpose of this study was to identify non-polio enteroviruses (NPEV) in stool samples collected from children with acute gastroenteritis (AGE) symptoms of unknown etiology in four provinces (Maputo, Nampula, Sofala and Zambézia) of Mozambique. From June 2014 to March 2018, 327 stool samples were collected from children hospitalized with AGE in health care units.

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Food aversions in women undergoing adjuvant chemotherapy for breast cancer may be linked to oxidative stress and gastrointestinal consequences underlying it, and diet possibly plays a role in this association. This follow-up study included 73 women with breast cancer treated in Florianopolis City, Brazil. Dietary antioxidant capacity-DaC (mmol/d), diet quality-Brazilian Healthy Eating Index Revised (BHEI-R score), and oxidative stress biomarkers were accessed before the treatment, and women were asked if they developed food aversions during adjuvant chemotherapy.

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Arginase is a metalloenzyme that plays a central role in infections. Previously, rosmarinic and caffeic acids were described as antileishmanial agents and as arginase inhibitors. Here, we describe the inhibition of arginase in by rosmarinic acid analogs () and new caffeic acid-derived amides ().

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