Background: Although rare, vaccine-induced thrombotic thrombocytopenia (VITT) following adenoviral vector COVID-19 vaccination is a concerning and often severe adverse effect of vaccination. The generation of high anti-platelet factor 4 (PF4) antibody titers, promotes the formation of immune complexes capable of activating platelets and neutrophils through FcγRIIa.
Objective: Given that Platelet-leukocyte aggregate (PLA) formation and inflammasome activation are common features of thromboinflammatory diseases, we aimed to evaluate if these are also features of VITT.
Phys Chem Chem Phys
October 2024
Identifying and manipulating spin in two-dimensional materials is of great interest in advancing quantum information and sensing technologies, as well as in the development of spintronic devices. Here, we investigate the influence of hydrogen adsorption on the electronic and magnetic properties of graphene-like triangulenes. We have constructed triangulenes from SiC monolayers, which have been successfully synthesized very recently, extending our investigation to include graphene triangulenes.
View Article and Find Full Text PDFCerebral Proliferative Angiopathy (CPA) is a rare brain vascular malformation, similar to Arteriovenous Malformations (AVM) but lacking of early venous drainage. Presentation and treatment outcomes were investigated, examining for morbidity, mortality and complications. A meta-analysis was conducted according to PRISMA guidelines.
View Article and Find Full Text PDFBackground: There is a well-documented association between Cushing's syndrome (CS) and hypercoagulability. However, there is limited data on the risk of venous thromboembolic events (VTEs) after surgery for Cushing's disease (CD). There is no consensus on optimal postoperative anticoagulation strategies in this group.
View Article and Find Full Text PDFComp Biochem Physiol A Mol Integr Physiol
November 2024
Body temperature (Tb) variation and environmental temperature gradients are more intense in small individuals because their body size allows for a more intimate relationship between Tb and the environment. To contribute to a methodological consensus on the ecophysiology of small ectotherms, we aimed to investigate whether different approaches and methodological techniques affect the measurement of critical temperatures in a small lizard (Coleodactylus meridionalis, Sphaerodactylidae) from the Atlantic Forest of southern Bahia, Brazil, and subsequently its vulnerability assessment. We measured two metrics of thermal physiology: critical thermal minimum (CTmin) and critical thermal maximum (CTmax).
View Article and Find Full Text PDFUnlabelled: Current diagnostic methods for dengue, such as serological tests, have limitations in terms of cross-reactivity with other viruses. To address this issue, we explored the potential of combining the loop-mediated isothermal amplification (LAMP) technique with the affinity of aptamers to develop point-of-care testing. In this study, we utilized 60 serum samples.
View Article and Find Full Text PDFBackground: Approximately, 11% of trans men experience erythrocytosis diagnosis due to testosterone administration during the first year of the gender-affirming hormone treatment (GAHT).
Objectives: To identify and compare the effect of different testosterone formulations on hematocrit (Hct) and diagnose erythrocytosis in trans men.
Materials And Methods: This systematic review was based on PRISMA guidelines.
Sci Rep
July 2024
Pfaffia glomerata (Spreng.) Pedersen has among its main bioactive compounds saponins, with the phytoestroid β-ecdysone as its chemical marker. In this study, pressurized liquid extraction (PLE), a green extraction technique used to obtain bioactive compounds from plants, was employed to extract beta-ecdysone from P.
View Article and Find Full Text PDFSugarcane is a central crop for sugar and ethanol production. Investing in sustainable practices can enhance productivity, technological quality, mitigate impacts, and contribute to a cleaner energy future. Among the factors that help increase the productivity of sugarcane, the physical, chemical and biological parameters of the soil are amongst the most important.
View Article and Find Full Text PDFWe have investigated the gas-phase fragmentation reactions of 11 synthetic 4-aryl-3,4-dihydrocoumarins by electrospray ionization tandem mass spectrometry (ESI-MS/MS) on a quadrupole-time-of flight (Q-TOF) hybrid mass spectrometer. We have also estimated thermochemical data for the protonated coumarins (precursor ion A) and product ion structures by computational chemistry at a B3LYP level of theory to establish the ion structures and to rationalize the fragmentation pathways. The most abundant ions in the product ion spectra of coumarins 1-11 resulted from CHO, CO, CHO, CHO, CHO, and CHOH eliminations through retro-Diels-Alder (RDA) reactions, remote hydrogen rearrangements (β-eliminations), and β-lactone ring contraction.
View Article and Find Full Text PDFObjective: To examine the influence of varying articulations of the right to health under domestic constitutions, legislation and jurisprudence on the scope of legal protection for health.
Methods: We investigated legal recognition of the right to health, by conducting a three-level search. First, we searched databases containing constitutional texts.
Animals (Basel)
December 2023
spp. are known to persist in the environment. Wild animals are believed to act as important reservoirs, with antimicrobial resistance frequently occurring in the environment.
View Article and Find Full Text PDFRecognizing law as a determinant of scarcity in health care is vital. This paper underscores the need for a comprehensive approach to manage scarcity beyond intellectual property, using targeted regulations to promote affordability and counter market distortions. I argue that relying on law solely to ensure democratic deliberations for resource allocation overlooks market failures and economic inequalities that contribute to scarcity.
View Article and Find Full Text PDFDue to the worldwide water supply crisis, sustainable strategies are required for a better use of this resource. The use of magnetic water has been shown to have potential for improving irrigation efficacy. However, a lack of modelling methods that correspond to the experimental results and minimize error is observed.
View Article and Find Full Text PDFThe tomato crop is very sensitive to stress conditions. A water deficit is defined as when precipitation is less than the evapotranspiration (ETc) of the crop in a given period, and in this scenario of climate change, it is identified as responsible for global productivity losses. The use of potential technologies for better irrigation management, such as electromagnetically treated water, remains controversial.
View Article and Find Full Text PDFBackground: Although the COVID-19 pandemic has increased the prevalence of cases with olfactory loss, other respiratory viruses can also cause this condition. We aimed to compare the prevalence of acute SARS-CoV-2 infection and other respiratory viruses in patients with sudden smell loss, and to assess the impact of SARS-CoV-2 viral load and co-infection on olfactory symptoms.
Methods: Patients with sudden smell loss were recruited in a multicenter prospective cohort study in 15 hospitals in Brazil.
Licania rigida Benth., a Brazilian endemic plant, has been traditionally used for treating inflammation and stomach pain. This work investigates the anti-inflammatory and gastroprotective activities of the ethanolic extract from L.
View Article and Find Full Text PDFDiagnostics (Basel)
February 2023
Alzheimer's disease (AD) is a common form of dementia that leads to multiple repercussions in the patient's life. This condition's clinical characteristics include loss of memory, temporal and spatial disorientation, language or executive dysfunction, and subsequent decline of social function. Dysexecutive syndrome (DS), the second most frequent neuropsychological dysfunction in AD, affects multiple brain areas and causes cognitive, behavioral, and emotional difficulties.
View Article and Find Full Text PDFMed Oral Patol Oral Cir Bucal
March 2023
Background: This study aimed to evaluate the clinicopathological features of mucocutaneous diseases with manifestation in the head and neck region.
Material And Methods: A retrospective analysis of a dermatology reference center database was carried out. Over 24 years.
Objective: We performed a systematic review to investigate the appearance of imaging signs on magnetic resonance imaging (MRI), cone-beam computed tomography (CBCT), and conventional computed tomography (CT) scans of the temporomandibular joints (TMJs) of patients with juvenile idiopathic arthritis (JIA).
Materials And Methods: We performed electronic searches of the PubMed, Embase, Web of Science, Scopus, Lilacs, and the Cochrane Library databases to identify studies investigating JIA and its related imaging findings. Inclusion criteria were as follows: original article studies based on humans and systematic reviews, studies enrolling patients under 18 years of age with a diagnostic of JIA, the use of International League of Associations for Rheumatology (ILAR) criteria and one type of medical imaging (MRI, CBCT, or CT), and papers published in the English language.
The worldwide loudspeaker market follows the growing tendency of electronic entertainment technologies both in quantity and variety. Consequently, the environmental impacts caused during the life cycle of loudspeakers increase in the same proportion, going in the opposite direction to what is determined by world environmental laws and regulations and global market tendencies. Even so, the environmental performance of this type of product is not considered in the decision-making process for technological updates in loudspeaker design.
View Article and Find Full Text PDFSARS-CoV-2 serologic surveys estimate the proportion of the population with antibodies against historical variants, which nears 100% in many settings. New approaches are required to fully exploit serosurvey data. Using a SARS-CoV-2 anti-Spike (S) protein chemiluminescent microparticle assay, we attained a semi-quantitative measurement of population IgG titers in serial cross-sectional monthly samples of blood donations across seven Brazilian state capitals (March 2021−November 2021).
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