Publications by authors named "Brito T"

Amphotericin B (AmB) is a commonly utilized antifungal agent, which is also recommended for the treatment of certain neglected tropical diseases, including leishmaniasis. However, its clinical application is constrained because of its poor oral bioavailability and adverse effects, prompting the investigation of alternative drug delivery systems. Polymeric nanoparticles (PNPs) have gained attention as a potential drug delivery vehicle, providing advantages such as sustained release and enhanced bioavailability, and could have potential as AmB carriers.

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Background: Owing to their extensive utilization as pesticides, heterocycles assume a fundamental role in the management of vector-borne diseases. Despite the presence of numerous heterocyclic compounds in commercial insecticides and larvicides, resistance to pesticides still demands novel strategies to current pest control methods. Considering these facts, this review aims to survey the synthesis and SAR of heterocyclic molecules with larvicidal activity against Aedes aegypti Linn.

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Article Synopsis
  • - The study investigates the role of Piwi proteins and piRNAs in protecting the genome of
  • Rhodnius prolixus
  • , a hemipteran insect known to transmit Chagas disease, from DNA damage caused by horizontally transferred transposable elements (HTTs) acquired from its diet.
  • - By using SmallRNA-Seq and RNA-Seq techniques, researchers quantified piRNA features and gene expression levels, revealing that piRNA production peaks during embryogenesis, correlating with reduced expression of HTTs and resident transposable elements.
  • - The findings highlight that while resident transposable element piRNAs engage in a typical ping-pong amplification mechanism, the response to HTTs is different, suggesting unique biogenesis and functional pathways for pi
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Objective: To identify factors associated with poor sleep quality in elderly dependent individuals in social vulnerability.

Method: Cross-sectional study with 59 elderly dependent individuals assisted by Family Health Units in São Carlos/SP. The following tools were used: Katz Index, Lawton and Brody Scale, Pittsburgh Sleep Quality Index, Addenbrooke's Cognitive Examination Revised, Fried's Frailty Phenotype, Geriatric Depression Scale (15 items), Perceived Stress Scale, Family APGAR, Social Support Scale from the Medical Outcomes Study, and World Health Organization Quality of Life, abbreviated and "old" versions.

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Article Synopsis
  • Five new lignanamides and ten known amides were extracted from the roots' chloroform extract, with new compounds identified through NMR and mass spectrometry.
  • The absolute configuration of one compound was determined using ECD experiments and quantum mechanical calculations.
  • The anti-inflammatory effects of these compounds were tested on macrophages, showing that all reduced nitric oxide levels, while one compound did not significantly affect IL-10 levels, indicating potential anti-inflammatory properties.
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The current cholesterol guidelines recommend maintaining low levels of low-density lipoprotein cholesterol (LDL-C) in patients with coronary artery disease (CAD). However, recent studies have suggested that both very low and very high LDL-C levels may be associated with increased mortality in the general population. We utilized data from TriNetX, a global health research network, to investigate the association between LDL-C levels and all-cause mortality in patients with CAD.

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Article Synopsis
  • - This study analyzes natural gas markets in Brazil, Mexico, Colombia, Argentina, and India from 2000 to 2020 using historical data and Porter's Five Forces to understand industry dynamics across different sectors.
  • - It highlights Brazil's struggles with domestic production growth despite regulatory reforms and infrastructure efforts, indicating ongoing challenges in realizing sectoral expansion.
  • - The research stresses the importance of policy improvements for better investment alignment and offers recommendations for stakeholders to navigate competitive landscapes and address potential market bottlenecks.
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Seaweeds are natural sources of sulfated polysaccharides (SPs), biopolymers with remarkable pharmacological properties, including biological actions capable of attenuating components of the inflammatory process such as edema, cytokines, cell migration and pain. Our results confirm that SPs obtained from Gracilaria domingensis (SP-GD) are agarans, primarily composed of residues of β-d-galactopyranose 6-sulfate and 3,6-anhydro-α-l-galactopyranose. Specifically, SP-GD at a dose of 10 mg/kg was effective in significantly reducing paw edema induced by carrageenan or histamine, serotonin, bradykinin, 48/80 and prostaglandin E2.

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In this study, extraction methods using natural deep eutectic solvents (NADES) were proposed for the determination of arsenic (As), cadmium (Cd), and lead (Pb) in plant and food matrices. NADES are green and sustainable solvents with advantageous chemical properties for such applications. The NADES were prepared with different components, characterized, and applied in ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) methods.

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Background/objectives: Studies have shown a high prevalence of anemia and vitamin D insufficiency in older adults, and the literature suggests a relationship between these two conditions, as vitamin D insufficiency may impair erythrocyte synthesis. Food insecurity refers to the lack of regular access to sufficient and nutritious food, which can directly affect health by worsening conditions such as anemia and vitamin D insufficiency. This study evaluated the association between vitamin D insufficiency and anemia in older adults.

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Two-dimensional (2D) materials, particularly transition metal dichalcogenides (TMDs), have gathered significant attention due to their interesting electrical and optical properties. Among TMDs, monolayers of WSeexhibit a direct band gap and high exciton binding energy, which enhances photon emission and absorption even at room temperature. This study investigates the electronic and optical properties of WSemonolayers when they are mechanically transferred to indium tin oxide (ITO) substrates.

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Article Synopsis
  • Study Purpose
  • : The research aimed to explore the factors linked to diabesity, a combination of diabetes and obesity, specifically among older women in Jequié, Brazil.
  • Methods Used
  • : By analyzing data from 196 women with a focus on socioeconomic, behavioral, and health conditions, the study applied Poisson regression to determine prevalence ratios for different factors associated with diabesity.
  • Key Findings
  • : High rates of abdominal obesity (79.6%), diabetes (27.8%), and diabesity (22.4%) were found, with significant associations linked to insufficient physical activity, prolonged sedentary behavior, taking multiple medications, and having a negative self-view of health.
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Background: Successful aging is associated with an increase in life expectancy. For a better understanding of the aging process, recognize the relationship between telomere length and nutritional status is a novel approach in geriatric science. Telomers shortening coincides with a decrease in life expectancy, and an increased risk of malnutrition-related diseases.

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Over the past two decades, concerns have arisen about the efficacy and safety of medicinal plants, highlighting good agricultural practices and quality control. This study aimed to validate a multi-residue analysis method for detecting 268 pesticides in Mikania glomerata tincture, using direct injection and UPLC-MS/MS, per SANTE guidelines. The validation of the method involved evaluating the linearity of analytical curves in terms of the determination coefficient r2 and residuals (%), as well as the limits of quantification (LOQ), matrix effects, precision (expressed as the coefficient of variation, CV), and accuracy (determined as the recovery percentage).

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Objectives: To evaluate the psychometric properties of different factorial models of the Medical Outcomes Study Social Support Survey (MOS-SSS) and screen the frequency of social support in older Brazilians.

Method: Methodological study. Five factorial models of the MOS-SSS were tested for their validity and reliability using three Brazilian samples from different locations in the country.

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Termites of the genus Nasutitermes sp. (Blattodea: Termitidae), which feed on cellulose, may cause wood to become brittle and fragile. This study aimed to evaluate the natural resistance of three native wood species: Magonia pubescens (Sapindaceae), Dalbergia nigra and Machaerium amplum (Fabaceae) to attack by Nasutitermes sp.

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Both cardiometabolic and chronic inflammatory diseases pose a significant challenge to global public health, particularly among older adults. Here, we investigated the interplay between systemic inflammatory status and the cardiometabolic index (CMI) in older men with adequate weight or obesity. In this observational cross-sectional study, older men (71.

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Unlabelled: Tartrolon D (TRL) is produced by Teredinibacter turnerae, a symbiotic cellulose-degrading bacteria in shipworm gills. Immunogenic cell death (ICD) induction contributes to a better and longer-lasting response to anticancer treatment. Tumor cells undergoing ICD trigger activation of the immune system, as a vaccine.

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Objective: Knowing the important repercussions of menopause for women's health and that female longevity can be better understood through studies based on aging biomarkers, studies on the relationship between menopause and telomere shortening may help to better understand this stage of life. This study aimed to analyze what research has been produced regarding the relationship between menopause and telomere length.

Methods: This integrative literature review included searches in PubMed, CINAHL, LILACS, Web of Science and Scopus databases.

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Background: To verify whether shorter telomere length is associated with anorexia of ageing in community-dwelling older people.

Methods: Conducted as a cross-sectional investigation, the study enrolled 448 participants residing in an urban area of a municipality in Brazil. Relative telomere length in blood samples was measured using quantitative polymerase chain reaction (qPCR), whereas the presence of anorexia of ageing was determined using the Simplified Appetite Nutritional Questionnaire.

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Two unusual naphthoquinones, named here as pleonotoquinones A () and B (), were isolated along with two known anthraquinones ( and ) via chromatographic separations of an ethyl acetate extract of the roots of . Compounds and are the first examples of quinones bearing a 2-methyloxepine moiety. The compounds were isolated with the aid of mass spectrometry and molecular networking, and their structures were resolved using 1D and 2D NMR and HRESIMS data.

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Background: Effective and timely detection is vital for mitigating the severe impacts of Sexually Transmitted Infections (STI), including syphilis and HIV. Cyclic Voltammetry (CV) sensors have shown promise as diagnostic tools for these STI, offering a pathway towards cost-effective solutions in primary health care settings.

Objective: This study aims to pioneer the use of Fourier Descriptors (FDs) in analyzing CV curves as 2D closed contours, targeting the simultaneous detection of syphilis and HIV.

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Introduction: Cervical disease control might be challenging in advanced thyroid cancer (DTC). Indications for cervical external beam radiation therapy (EBRT) are controversial.

Purpose: To identify clinical and molecular factors associated with control of cervical disease with EBRT.

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In the search for new chemotherapeutic alternatives for cutaneous leishmaniasis (CL), essential oils are promising due to their diverse biological potential. In this study, we aimed to investigate the chemical composition and leishmanicidal and anti-inflammatory potential of the essential oil isolated from the leaves of (PCEO). The chemical composition of PCEO showed β-cis-Caryophyllene (24.

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Ethnopharmacological Relevance: The plants of the genus Casimirella ampla (Miers) (C. ampla) are extensively used in folk medicine. For a long time, rural communities have been using extracts from its roots for food and therapeutic purposes.

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