Publications by authors named "Camila Souza"

This study aims to investigate the possible association between neutrophil/lymphocyte and platelet/lymphocyte ratio in women with HIV, undergoing antiretroviral treatment, with HPV coinfection. This is a cross-sectional study with HIV positive women; their biological samples were collected for laboratory tests (complete blood count) and oncotic cytology for detection of HPV DNA, by PCR-Nested (PGMY and GP primers). Viral load and CD4 and CD8 T-cells counts were obtained from medical records.

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  • The study investigated how estradiol affects food intake and receptor expression in postmenopausal rats, particularly looking at the neuropeptides VIP and PACAP in specific hypothalamic areas.
  • Results showed that estradiol reduced the expression of the VPAC2 receptor and disrupted the hypophagic (appetite-reducing) effects of VIP, while PACAP continued to suppress food intake.
  • Additionally, estradiol altered plasma glucose and free fatty acid levels in these rats, suggesting different mechanisms in how VIP and PACAP influence energy homeostasis in the context of estrogen loss.
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There is a lack of empirical studies of out-of-pocket health expenditures associated with dyslipidemias, which are major cardiovascular risk factors, especially in underrepresented admixed populations. The study investigates associations of health costs with lipid traits, GWAS-derived genetic risk scores (GRSs), and other cardiometabolic risk factors. Data from the observational cross-sectional 2015 ISA-Nutrition comprised lifestyle, environmental factors, socioeconomic and demographic variables, and biochemical and genetic markers related to the occurrence of cardiometabolic diseases.

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Introduction: Leptospirosis is a global zoonosis that affects more than one million people per year, with a lethality rate of approximately 15%. Chemokines are crucial in the immune response against , recruiting leukocytes to the site of infection and regulating immune activity. In previous studies, we have shown that CCL2, CXCL5, and CCL8 are involved in the leptospirosis process, although the mechanisms are not understood.

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  • * Urban areas displayed increased generalization in species interactions, demonstrating greater overlap and a link between lower rainfall and more generalized interaction networks.
  • * Urban environments also showed reduced functional trait diversity among hummingbirds and a higher presence of nonnative nectar plants, affecting both species composition and the interactions within these ecological communities.
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Investigating tumor heterogeneity using single-cell sequencing technologies is imperative to understand how tumors evolve since each cell subpopulation harbors a unique set of genomic features that yields a unique phenotype, which is bound to have clinical relevance. Clustering of cells based on copy number data obtained from single-cell DNA sequencing provides an opportunity to identify different tumor cell subpopulations. Accordingly, computational methods have emerged for single-cell copy number profiling and clustering; however, these two tasks have been handled sequentially by applying various ad-hoc pre- and post-processing steps; hence, a procedure vulnerable to introducing clustering artifacts.

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Understanding the relationship between the aerobic transformation of organic matter (OM) and the bioavailability of lead to plants may allow the safe application of organic fertilizers (OF) in agriculture. The present study aimed to elucidate the relationship of different OM structures with Pb, revealing the action of OF (poultry litter) on Pb dynamics, presenting the effects of OM transformations on bioavailability and transfer to vegetables produced in tropical mountain agroecosystems (TMA). The association of Pb with hydrophilic structures (CAlk-O and CAlk-di-O) during the aerobic transformation of poultry litter (PL) contributes to the increase in the water-soluble form of this metal (3.

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  • Several maternal undernutrition models show that male offspring experience testicular development issues and compromised sperm production.
  • In this study, male pups were raised in either normal or larger litters, and at 90 days old, were assessed for sexual behavior and various tissue analyses.
  • Although the undernourished males had histological changes in their testes, including abnormal tubules and fewer Sertoli cells, their sperm quality and sexual behaviors remained unaffected.
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Fire is a major ecological and evolutionary factor promoting biodiversity and maintaining functioning of naturally fire-prone ecosystems. In tropical savannas, plant communities show a set of fire-adapted traits and both flowering and pollination services have the potential to rapidly regenerate after fire, but fire-suppression policies may disrupt this adaptability following potential woody encroachment. Understanding the effects of fire on plant-pollinator interactions are required to advance conservation of biodiversity and ecosystem functioning.

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Currently, it is crucial for the lubricant formulation industry to explore cost-effective and environmentally friendly methodologies for analyzing the tribological properties of engine aviation lubricants under high-temperature and high-pressure operating conditions. This study demonstrates the feasibility of employing molecular dynamic simulations to gain essential insights into the evolution of the tribological properties of lubricants during operation. A three-layer molecular model was devised, comprising nickel aluminide molecules in the top and bottom layers, and polyol ester in the core.

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Complex Regional Pain Syndrome is characterized by regional pain that is disproportionate to the triggering event, with no distribution to dermatomes, a tendency towards chronicity, and dysfunction. This narrative review proposes an update of criteria for diagnosis and management of the syndrome, providing information on epidemiology, etiology, and pathophysiology. We base our information on systematic and narrative reviews, as well as guidelines published in recent years, aiming to facilitate diagnostic suspicion and provide a broad overview of therapeutic possibilities.

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The concentrations of toxic metals (TM) were analyzed in 498 samples of agricultural soils used for intensive vegetable cultivation in the watershed of Barracão dos Mendes, Brazil. The goal of this study was to characterize the distribution of these elements and the main natural and anthropogenic factors affecting their accumulation. In general, the average concentrations of TM were higher than the reference quality values for cultivated soils in the region, with the exception of Cr, Co, Ni and Mn, and the average concentration of Cd was ten times greater.

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Deformation bands are common constituents of porous clastic fluid reservoirs. Various techniques have been used to study deformation band structure and the associated changes in porosity and permeability. However, the use of electron backscatter diffraction technique is limited.

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Epidemiological studies frequently classify groups based on phenotypes like self-reported skin color/race, which inaccurately represent genetic ancestry and may lead to misclassification, particularly among individuals of multiracial backgrounds. This study aimed to characterize both global and local genome-wide genetic ancestries and to assess their relationship with self-reported skin color/race in an admixed population of Sao Paulo city. We analyzed 226,346 single-nucleotide polymorphisms from 841 individuals participating in the population-based ISA-Nutrition study.

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Background And Aims: To investigate associations between Single Nucleotide Polymorphisms (SNPs) in the TAS1R and TAS2R taste receptors and diet quality, intake of alcohol, added sugar, and fat, using linear regression and machine learning techniques in a highly admixed population.

Methods: In the ISA-Capital health survey, 901 individuals were interviewed and had socioeconomic, demographic, health characteristics, along with dietary information obtained through two 24-h recalls. Data on 12 components related to food groups, nutrients, and calories was combined into a diet quality score (BHEI-R).

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The increasing resistance to polymyxins in Acinetobacter baumannii has made it even more urgent to develop new treatments. Anti-virulence compounds have been researched as a new solution. Here, we evaluated the modification of virulence features of A.

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Purpose: Pan-retinal photocoagulation (PRP) is the mainstay of treatment for proliferative diabetic retinopathy (PDR), reducing the risk of severe vision loss. Pain poses a potential obstacle to effective laser delivery and patient compliance. Therefore, implementing pain relief strategies can enhance both treatment efficacy and patient comfort.

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Aim: Accurate prognosis of diffuse axonal injury (DAI) is important in directing clinical care, allocating resources appropriately, and communicating with families and surrogate decision-makers.

Methods: A study was conducted on patients with clinical DAI due to closed-head traumatic brain injury treated at a trauma center in Brazil from July 2013 to September 2015.  The objective efficacy of the Glasgow Coma Scale (GCS), Trauma and Injury Severity Scoring system (TRISS), New Trauma and Injury Severity Scoring system (NTRISS), Abbreviated Injury Scale (AIS)/head, Corticosteroid Randomization After Significant Head Injury (CRASH), and International Mission on Prognosis and Analysis of Clinical Trials (IMPACT) models in the prediction of mortality at 14 days and 6-months and unfavorable outcomes at 6 months was tested.

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Bovine mastitis is a mammary gland inflammation that can occur due to infectious pathogens, and , which are, respectively, the most prevalent Gram-positive and Gram-negative bacteria associated with this disease. Currently, antibiotic treatment has become more complicated due to the presence of resistant pathogens. This review, therefore, aims to identify the most common resistance genes reported for these strains in the last four years.

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  • - The study investigates how genetics and environment together affect immune responses in mice, focusing on three different inbred strains (C57BL/6, 129S1, PWK/PhJ) in an outdoor setting and infected with a specific parasite.
  • - It finds that while the overall structure of immune cells is influenced by both genetics and the environment, the variation in certain immune responses, like cytokine levels, is mainly determined by genetics, affecting how many parasites the mice carry.
  • - Additionally, the expression of immune markers like CD44 shows different influences: on T cells, it’s mostly genetic, while on B cells, it’s more environmental; and importantly, the impact of genetics appears to lessen when the mice
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  • The study examines how genetic differences in mice (C57BL/6 and BALB/c strains) affect macrophages' (TRMs) responses to cytokine IL-4 and lipopolysaccharide (LPS).
  • C57BL/6 TRMs show a stronger transcriptional response to IL-4, with specific genetic motifs and enhanced epigenomic changes compared to BALB/c TRMs.
  • Findings suggest that intrinsic genetic variation influences the macrophages' ability to respond synergistically to IL-4 and LPS in the same tissue environment.
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Bovine mastitis is a frequent infection in lactating cattle, causing great economic losses. represents the main etiological agent, which causes recurrent and persistent intramammary infections because conventional antibiotics are ineffective against it. Mastoparan-like peptides are multifunctional molecules with broad antimicrobial potential, constituting an attractive alternative.

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Introduction: Lung diseases are common in patients with end stage kidney disease (ESKD), making differential diagnosis with COVID-19 a challenge. This study describes pulmonary chest tomography (CT) findings in hospitalized ESKD patients on renal replacement therapy (RRT) with clinical suspicion of COVID-19.

Methods: ESKD individuals referred to emergency department older than 18 years with clinical suspicion of COVID-19 were recruited.

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  • - The study evaluated the use of whole genome sequencing (WGS) as a first-step diagnostic tool for critically ill infants in Brazilian neonatal intensive care units, with collaboration between private and public hospitals.
  • - In a cohort of 21 infants suspected of genetic diseases, WGS provided a diagnostic yield of 57%, identifying various genetic variants, including 10 novel ones not found in existing databases.
  • - The research highlighted the advantages of WGS over traditional genetic tests in diagnosing conditions like dysmorphic syndromes while also discussing the challenges and potential implications of integrating WGS into Brazil's healthcare system.
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