Publications by authors named "Machado K"

The demand for less hazardous and environmentally friendly surface disinfectants is growing and essential oils may be efficient alternatives. Vapor phase assay is a promising technique which explore the volatility of essential oils for determining the antimicrobial activity. In this study, we modified the conditions of the inverted Petri dish technique to evaluate the minimum inhibitory concentrations (MIC).

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  • Hypotension is linked to systemic inflammation caused by endothelial dysfunction, with the amino acid L-kynurenine (KYN) leading to vasodilation and hypotensive shock through the KCNQ gene.
  • Fructose-1,6-bisphosphate (FBP) shows potential as an anti-inflammatory and modulator of ion channels, and in experiments on Wistar rats, KYN decreased blood pressure while FBP reversed these effects.
  • Molecular simulations indicate that KYN and FBP bind similarly to the KCNQ4 structure, suggesting new avenues for researching treatments for inflammation-induced hypotension.
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  • This data descriptor introduces a specialized dataset focused on identifying pathogens like Staphylococcus aureus and Pseudomonas aeruginosa from whole blood samples using advanced mass spectrometry techniques.
  • The dataset employs a unique three-tier system, which includes spectral libraries for identifying biomarkers, MS data for optimizing biomarker panels, and PRM data from sepsis patients, achieving 83.3% sensitivity in under seven hours.
  • It aims to serve as a vital resource for developing bioinformatic tools and proposing biomarker panels, ultimately enhancing pathogen detection and supporting studies on antimicrobial resistance and epidemiology.
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Breakthrough COVID-19 (occurring in fully vaccinated people) has been described. Data on its characteristics among immune-mediated rheumatic disease (IMRD) patients are scarce. This study describes breakthrough COVID-19 occurring in IMRD patients participating in the SAFER-study, a Brazilian multicentric cohort evaluating the safety, effectiveness, and immunogenicity of SARS-CoV-2 vaccines in patients with autoimmune diseases.

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To investigate the association between symptoms of long-term effects of coronavirus disease 2019 (long COVID) and sleep problems in a sample population from southern Brazil. This cross-sectional study used data from the SULcovid-19 survey, developed in the municipality of Rio Grande, RS, Brazil. The outcome, long COVID, was investigated through the presence of 18 symptoms, and the exposure variable was sleep problems.

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Background: Patients with immune-mediated rheumatic diseases (IMRDs) have been prioritized for COVID-19 vaccination to mitigate the infection severity risks. Patients with rheumatoid arthritis (RA) are at a high risk of severe COVID-19 outcomes, especially those under immunosuppression or with associated comorbidities. However, few studies have assessed the safety of the COVID-19 vaccine in patients with RA.

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  • The research team has focused on the natural dye-producing plant, annatto, gaining insights into its gene expression and regeneration processes.
  • They have also explored gene editing techniques to improve bixin biosynthesis and breeding practices for this important species.
  • The text outlines a detailed protocol for somatic embryogenesis and an optimized method for transforming annatto using Agrobacterium tumefaciens.
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  • - Trastuzumab deruxtecan is a newly approved cancer treatment specifically for HER2-mutant non-small-cell lung cancer, and this study explored its effectiveness in treating other metastatic solid tumors with similar HER2 mutations.
  • - Conducted as an open-label, phase 2 study across 29 centers in multiple regions, it involved 102 patients aged 18 and older who had previously received treatment for their cancer and continued to experience disease progression.
  • - Results showed that the treatment led to a 29.4% objective response rate, indicating some level of effectiveness, and a median follow-up of nearly 9 months revealed information about its safety and anti-tumor activity.
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The targeted LC-MS/MS method has been widely applied for peptide quantification, offering sensibility, specificity, and reproducibility to the analysis. However, it requires the prior selection of targets, including the construction of a spectral library. Here, we present a dataset comprising peptide mass spectra for targeted LC-MS/MS method setup, applied to a set of human complement system proteins.

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Objectives: Leprosy is a chronic granulomatous disease caused by Mycobacterium leprae. Less frequently, there is involvement of the musculoskeletal system, and occurrence of systemic manifestation with non-specific symptoms such as fever, fatigue and myalgia. Therefore, leprosy can often mimic autoimmune diseases such as arthritis, vasculitis, or collagenosis and be mis-diagnosed.

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  • A study was conducted on adult COVID-19 patients hospitalized from February 2020 to October 2022 to identify effective inflammatory biomarkers for assessing patient risk during hospitalization.
  • The biomarkers analyzed included suPAR, C-reactive protein (CRP), interleukin-6, procalcitonin, ferritin, and D-dimer; suPAR emerged as the strongest predictor of severe outcomes, such as death or the need for mechanical ventilation.
  • A suPAR cutoff of 4.0 ng/mL was found to indicate low risk with high sensitivity and negative predictive value, suggesting it could be a valuable tool for triaging low-risk COVID-19 patients.
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Although many efforts have been made to understand the pathophysiological mechanisms of COVID-19, critical gaps remain to be explored. This study aimed to investigate potential alterations in adipokine levels (specifically adiponectin, leptin, and resistin) among individuals with COVID-19. Within this population, we further assessed the association between these markers with both, body mass index (BMI) and psychiatric symptoms.

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  • Age affects how plants produce secondary metabolites, which are important for industries, particularly focusing on bixin from the achiote tree.
  • In a study, researchers overexpressed a specific microRNA (miR156) in annatto plants, leading to reduced gene expression for bixin production and changes in leaf development.
  • The results highlight the role of the miR156-SPL module in controlling bixin biosynthesis and suggest potential strategies for improving bixin yield in breeding efforts.
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To evaluate the cumulative incidence of depression and its associated factors in the older population living in the urban area of the municipality of Bagé, Rio Grande do Sul State, Brazil, a prospective cohort study was conducted from 2008 to 2016/2017. The analysis was restricted to 615 older adults with complete information on the Geriatric Depression Scale (GDS-15), both at baseline and at follow-up, and who did not present depression in 2008. To calculate crude and adjusted incidence ratios and 95% confidence interval, Poisson regression with robust variance adjustment was used, including the baseline variables.

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Objective: Desmarestia anceps Montagne (D. anceps) seaweed has been shown to play a range of biologic activities, such as anti-inflammatory and antioxidant properties. The purpose of this study was to investigate the effects of D.

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The diversity of eukaryotic and prokaryotic communities has been assessed by morphological and genetic approaches, which are used to characterize the microbiota in different environments. Here, planktonic prokaryotic and eukaryotic communities of the Araguaia River, located in the Central region of Brazil, were analyzed based on metabarcoding analysis of rRNA genes to evaluate the diversity of these groups in tropical floodplain lakes. Also, we tested their spatial concordance throughout the Araguaia river.

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Background: Functional training may be an effective non-pharmacological therapy for heart failure (HF). This study aimed to compare the effects of functional training with strength training on peak VO and quality of life in individuals with HF.

Methods: A randomized, parallel-design and examiner-blinded controlled clinical trial with concealed allocation, intention-to-treat and per-protocol analyses.

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Purpose Or Objective: Melanoma is one of the most dangerous forms of skin cancer and the discovery of novel drugs is an ongoing effort. Quantitative Structure Activity Relationship (QSAR) is a computational method that allows the estimation of the properties of a molecule, including its biological activity. QSAR models have been widely employed in the search for potential drug candidates, but also for agrochemicals and other molecules with applications in different branches of the industry.

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Aim: The aim of this study was to evaluate chest compression rates (CCR) with and without the use of a metronome during treatment of out-of-hospital cardiac arrest (OHCA).

Methods: We performed a retrospective cohort investigation of non-traumatic OHCA cases treated by Seattle Fire Department from January 1, 2013, to December 31, 2019. The exposure was a metronome running during CPR at a rate of 110 beats per minute.

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Aim: Integrative and complementary practices (PICs) can be important health care strategies, mainly because they consider the integrality of the person. The objective of this article was to verify the inequality in the access to PICs of the Brazilian population based on data from the National Health Survey (PNS).

Subject And Methods: This is a population-based cross-sectional study, with data from the 2019 PNS.

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This study aimed to review and quantify the association between overweight and obesity in the risk of multimorbidity among the general population. We conducted a systematic review and meta-analysis in the databases of Pubmed, Lilacs, Web of Science, Scopus, and Embase. We included cohort studies that assessed the association between overweight and/or obesity with the risk of multimorbidity.

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  • Diagnosing Sjögren's Syndrome (SS) in Systemic Lupus Erythematosus (SLE) is challenging due to overlapping symptoms, leading to the use of two classification criteria, AECG 2002 and ACR-EULAR 2016.
  • A study of 237 SLE patients found a SS prevalence of 23% using AECG 2002 and 35% using ACR-EULAR 2016, with significant predictors for SS identified.
  • The ACR-EULAR 2016 criteria help in early diagnosis and understanding the overlap between SS and SLE, though they haven't been validated specifically for secondary SS yet.*
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Unlabelled: In this case report, we demonstrate how the correct positioning of implants, associated with optimal gingival conditioning, and the correct choice of biomaterial can yield very predictable and fantastic aesthetic results.

Objective: We aimed to use dental implants to rehabilitate the area of elements #11 and #21 in a satisfactory surgical and prosthetic manner, using guided surgery, connective tissue, nano-biomaterials, and a porcelain prosthesis.

Case Report: A 32-year-old male patient presented with bone loss of elements #11 and #21, which was proven radiographically and clinically.

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