Publications by authors named "Lucas Dos Santos"

The aim of the study was to evaluate the effect of metabolic syndrome (MetS) on female Swiss mice subjected to severe polymicrobial sepsis induced by cecal ligation and puncture (CLP). MetS was induced in neonatal Swiss mice by subcutaneous injection of monosodium glutamate (MSG) at 4 mg/g body weight from day 1 to day 5 after birth, while animals in the control group (CTL) were treated with equimolar saline solution at the same volume and period. On the 75th day of life, the CLP model was used to induce severe polymicrobial sepsis.

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Article Synopsis
  • The study investigates how aspirin (ASA) can help prevent bone loss in mice suffering from metabolic syndrome (MetS) and periodontal disease (PD).
  • Newborn mice were induced with MetS and then exposed to PD, with half receiving daily aspirin treatment, while assessing various health and bone loss parameters.
  • Findings showed that while ASA reduced bone loss in non-MetS mice, MetS mice did not respond to the treatment, highlighting the complex interaction between MetS and PD.
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Introduction: Alpha-1-antitrypsin deficiency (A1AD) is a genetically determined antiproteinase deficiency that predisposes to early-onset emphysema and liver disease. Lung transplantation (LTx) is the final therapeutic option. Behçet's disease (BD) is a rare autoimmune disease characterized by oral and genital ulcers and deep venous thrombosis associated with large-vessel and small-vessel vasculitis and aneurysms.

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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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Objective: To investigate the discriminatory capacity of habitual physical activity (HPA) and sedentary behavior (SB) when screening for dynapenic abdominal obesity (DAO) and dynapenic obesity (DO) in older adults.

Methods: A cross-sectional population epidemiological investigation was conducted with 207 older adults. Obesity was diagnosed by high waist circumference and body mass index.

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The mcr-type gene encodes the main plasmid-mediated mechanism of colistin resistance and has been reported in several bacterial species obtained from different sources. Anthropogenic activities in the environment favor the evolution of antimicrobial resistance. Indeed, mcr-1-positive Escherichia coli strains were susceptible to non-polymyxins antimicrobials, but now emerging as multidrug-resistant (MDR) lineages.

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Independent vector analysis (IVA) can be viewed as an extension of independent component analysis (ICA) to multiple datasets. It exploits the statistical dependency between different datasets through mutual information. In the context of motor imagery classification based on electroencephalogram (EEG) signals for the brain-computer interface (BCI), several methods have been proposed to extract features efficiently, mainly based on common spatial patterns, filter banks, and deep learning.

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With the growing demand for sustainable and safe agricultural practices, plant compounds emerge as a solution for biological activities. Here, we evaluated the potential of using essential oil to induce plant resistance and to control phytopathogens () and insect pests (). We conducted a chromatographic analysis to unveil the essential oil components.

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Background: Sepsis is a complex condition characterized by systemic host inflammation caused by an infection. Experimental and observational studies indicate that obesity, one of the components of metabolic syndrome (MetS), or aspirin (ASA) treatment could be associated with sepsis survival. However, the effects of ASA on septic mice with MetS-induced conditions have not been explored.

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Objective: To analyze the factors associated with low functional mobility in older adults residing in Alcobaça, BA.

Methods: This is an epidemiological survey with a cross-sectional design, conducted in 2015 with 473 older adults (62.4% women; mean age 70.

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This work aims to study the interaction between cationic metal complexes (M ) and gold nanoparticles (AuNPs ). The M complexes were chosen from previous works described in the literature and were synthesized as defined. For example, they are as follows: = [RuCl(dppb)(bipy)(py)](PF); = [RuCl(dppb)(bipy)(vpy)](PF); = [RuCl(dppb)(bipy)(mepy)](PF); = [RuCl(dppb)(bipy)(bpy)](PF); = [RuCl(dppb)(bipy)](PF); = [Fe(bipy)]Cl; = [Ru(bipy)](PF); = [TPyP{RuCl(dppb)(bipy)}](PF); and = [RuCl(-cymene)(Dipmp)](PF).

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Resistance to carbapenems emerged in clinical settings and has rapidly spread to other sectors, such as food and the environment, representing a One Health problem. In this regard, vegetables contaminated by critical priority pathogens have raised global concerns. Here, we have performed a whole-genome sequence-based analysis of extensively drug-resistant Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa strains isolated from cabbage, spinach, and lettuce, respectively.

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Purpose: Diabetic retinopathy (DR) is a leading cause of preventable blindness, particularly in underserved regions where access to ophthalmic care is limited. This study presents a proof of concept for utilizing a portable handheld retinal camera with an embedded artificial intelligence (AI) platform, complemented by a synchronous remote confirmation by retina specialists, for DR screening in an underserved rural area.

Design: Retrospective cohort study.

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Background: Klebsiella pneumoniae species complex (KpSC) is an important disseminator of carbapenemase-encoding genes, mainly bla and bla, from hospitals to the environment. Consequently, carbapenem-resistant strains can be spread through the agrifood system, raising concerns about food safety. This study therefore aimed to isolate carbapenem-resistant KpSC strains from the agricultural and environmental sectors and characterize them using phenotypic, molecular, and genomic analyses.

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Differentiated thyroid carcinoma (DTC) accounts for most cases of thyroid cancer, and the heterogeneity of DTC requires that management decisions be taken by a multidisciplinary team involving endocrinologists, head and neck surgeons, nuclear medicine physicians, pathologists, radiologists, radiation oncologists, and medical oncologists. It is important for nonspecialists to recognize and refer patients with DTC who will benefit from a specialized approach. Recent advances in knowledge and changes in management of DTC call for the need to raise awareness on the part of these nonspecialist physicians, including general endocrinologists and medical oncologists at large.

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Gene editing technologies have opened up the possibility of manipulating the genome of any organism in a predicted way. CRISPR technology is the most used genome editing tool and, in agriculture, it has allowed the expansion of possibilities in plant biotechnology, such as gene knockout or knock-in, transcriptional regulation, epigenetic modification, base editing, RNA editing, prime editing, and nucleic acid probing or detection. This technology mostly depends on tissue culture and genetic transformation/transfection protocols, which sometimes become the major challenges for its application in different crops.

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To assess the prevalence of mental health symptoms in nursing professionals during the COVID-19 pandemic on the American continent. A systematic review and meta-analysis of observational studies that estimated the prevalence of mental health symptoms in nursing professionals during the COVID-19 pandemic was performed through bibliographic database searches. A three-level meta-analysis model was used with the inverse variance method, tau was estimated via restricted maximum likelihood and logistic transformation, and heterogeneity was presented as tau and I.

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Article Synopsis
  • Organic pollutants are commonly found in the environment and can accumulate in the food chain, especially affecting aquatic species, leading to significant long-term human exposure through diet.
  • This study focused on assessing levels of various organic pollutants in urine samples from riverside communities in the Brazilian Amazon, demonstrating widespread detection of naphthalene metabolites and highlighting gender differences in metabolite levels.
  • The findings indicate that residents near the Amazon River face higher risks for non-carcinogenic and carcinogenic health effects due to exposure to environmental pollutants, stressing the need for further research on the health impacts of these contaminants.
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The environmental contamination plays a significant role in the emergence of antimicrobial resistance. In this study, we report a genomic analysis of an extensively drug-resistant and bla-producing Klebsiella pneumoniae (EW807) strain recovered from a surface water sample. Strain EW807 belonged to sequence type (ST) 340 and serotype O4:KL15, a high-risk clone of the clonal group 258.

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Doxorubicin (Dox) is a chemotherapeutic agent widely used in the clinic, whose side effects include cardiotoxicity, associated with decreased antioxidant defenses and increased oxidative stress. The association of Dox with natural antioxidants can extend its use if not interfering with its pharmacological potential. In this study, we aimed to understand the effects and mechanisms of the aqueous extract of leaves (EA-Aa) in cancer cells and the co-treatment with Dox, in and models.

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Background: Dynapenia is a risk factor of mortality. Therefore, the development of low-cost and easy-to-apply tools is essential to optimize the health surveillance actions of older people.

Objectives: To compare the time spent on habitual physical activity (HPA) and sedentary behavior (SB) among dynapenic and non-dynapenic older adults and ascertain the predictive ability of these behaviors on outcome.

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Chagas disease (CD), caused by , is a neglected tropical disease prevalent in Latin America. Infected patients are treated to eliminate the parasite, reduce the cardiomyopathy risk, and interrupt the disease transmission cycle. The World Health Organization recognizes benznidazole (BZ) and nifurtimox as effective drugs for CD treatment.

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This study aimed to investigate the antibiotic resistance and biofilm formation of Acinetobacter calcoaceticus-A. baumannii (ACB) complex isolates recovered from a university hospital in Pelotas, RS, Brazil. The species were confirmed using gyrB multiplex and blaOXA-51-like genes PCR.

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Height is a critical component of plant architecture, significantly affecting crop yield. The genetic basis of this trait in soybean remains unclear. In this study, we report the characterization of the Compact mutant of soybean, which has short internodes.

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