Researchers found that a rise in South Atlantic temperature caused a release of trapped CO2 into the atmosphere, affecting climate regulation. This process has implications for current climate change and potential collapse of the AMOC.
The review highlights Brazil's importance in global sustainability efforts, with the country having twice as many articles on sugarcane as the US. Genetic engineering techniques need improvement to increase ethanol production while minimizing crop expansion. CRISPR-Cas9 gene editing is a promising approach for precise modifications.
A computational study conducted by Brazilian researchers found that current density and active species concentration are the main variables affecting capacity loss. The approach successfully mitigated cross-contamination, providing an optimal flow between electrolyte tanks under different operating conditions.
A new fossil assemblage in Brazil has added to the complexity of classifying silesaurid phylogeny, a family of dinosauriforms that lived during the Triassic period. The study suggests that these animals were part of the evolutionary history of dinosaurs, but their classification remains uncertain due to ambiguous anatomy.
Researchers at São Paulo State University developed a novel biomaterial that speeds up osteoblast differentiation, mimicking a low-oxygen environment. The cobalt-doped calcium phosphate material has the potential to be used in future bone regeneration procedures, reducing surgery risks and hospital stays.
Researchers found rabies virus variants closely related to those in White-tufted marmosets in bats, highlighting potential for human transmission. Genetic sequencing revealed complex spillover dynamics between hosts, emphasizing the need for public health measures and animal conservation.
Scientists developed a high-throughput method to study oxidized lipids in ALS. Analysis of blood plasma from rats with ALS revealed 17 oxylipin alterations associated with oxidative stress and inflammation. Oxylipins may serve as biomarkers for monitoring disease progression.
Researchers identified a novel bacterial protein, MceF, that can prolong cell longevity by acting directly on mitochondria. The discovery could lead to new treatments for diseases relating to mitochondrial dysfunction, such as cancer and auto-immune disorders.
Researchers at the University of São Paulo have tested a synthetic molecule called AD-9308, which has shown potential in treating heart failure by activating the enzyme aldehyde dehydrogenase 2. The study found that the molecule improved mitochondrial filtration, eliminating cellular pollutants and boosting heart function by up to 40%.
Researchers developed a PCR test that accurately identifies the causative agent of visceral leishmaniasis, a neglected disease affecting Brazil and Latin America. The test can detect co-infection by both Leishmania infantum and Crithidia, with infection by Crithidia more frequent than previously thought.
Scientists identify pyroglutamination, a spontaneous chemical change, in peptide synthesis, leading to an amyloidal structure and potential implications for neurodegenerative diseases like Alzheimer's and Parkinson's. The process favors aggregation of molecules, forming plaques that interrupt neuronal flow.
Thyroid cancer incidence is significantly higher in more affluent areas of São Paulo State, Brazil, compared to less developed regions like Barretos. The study suggests overdiagnosis may be responsible for this trend, with mortality rates remaining similar across socioeconomic groups.
Researchers developed a low-cost anti-inflammatory hydrogel containing annexin A1 that accelerated complete skin wound healing in mice with induced type 1 diabetes. The hydrogel modulated the wound microenvironment and favored tissue regeneration, reducing inflammation and improving blood vessel formation.
Researchers found that most allegedly biodegradable plastic items sold by Brazilian supermarkets are actually oxo-degradable plastics banned in several countries. The products cost 125% more than conventional alternatives and failed to meet minimum requirements for genuine biodegradability.
Research found that nematodes can sense danger by smell, triggering a neural circuit that induces a response in other tissues, leading to a longer lifespan and less protein aggregation. The study suggests that manipulating perceptions of chemical substances could be a route to intervention in neurodegenerative diseases.
A study in sustainable-use reserves found local game species abundance decreases about 5 kilometers from nearest human community. Human impact on biodiversity is mitigated by management strategies, supporting community-based wildlife management for food security and conservation.
A research project involving citizens in flood-prone areas improves data collection and increases resilience. The methodology shows a combination of digital technologies, participatory methods, and co-production of new understandings to enable just and sustainable transformations.
Brazilian researchers found that Zika-infected mice with microcephaly have lower Ndel1 enzyme activity, which plays a key role in neuron differentiation and migration. The study suggests that Ndel1 may be a biomarker for early diagnosis of microcephaly and offers hope for treatment options.
Researchers at São Paulo State University found that Cerrado plant species employ two strategies to protect themselves from fire: producing thick bark and hiding organs beneath the ground. This allows them to resprout quickly after a fire event.
A recent study using SENTINEL-2 satellite images estimated burned areas with 96% accuracy, revealing a much larger area affected by wildfires than previously thought. This higher precision will help improve estimates of greenhouse gas emissions and inform fire management decisions.
Researchers have identified polyalthic acid, a compound in copaiba oil, with potent antibacterial activity against Gram-positive bacteria. The study's findings pave the way for developing alternative medications to combat antimicrobial resistance.
A recent study reveals 15%-18% of the Brazilian Amazon is at high risk of ecological disruption by 2050. The regions, often near 'deforestation arc', exhibit low research frequencies and are threatened by climate change.
A Brazilian physicist has developed an alternative method that reduces calculation time for simulating light absorption by molecules from two days to a few hours. This allows for high-resolution microscopy and the creation of precise 3D structures for data storage, with potential applications in medicinal treatments.
A novel biomaterial developed at the Federal University of São Paulo can deliver medication directly to the gastrointestinal tract of fish, enhancing the efficacy of conventional drugs. The material is administered orally in powder form and has shown high penetration into epithelial cells without cytotoxic effects.
The Cerrado, Brazil's second-largest biome, is experiencing record levels of native vegetation destruction due to agricultural expansion. Scientists warn that the loss of vegetation contributes to extreme weather events, threatens crop yields, and endangers food security policies.
Research found that poor sleep quality is associated with less muscle strength and mass, more body fat, anxiety, and depression in obese older people. The study emphasizes the importance of addressing sleep quality to prevent negative health outcomes in this population.
Researchers have discovered a key mechanism involved in dental pulp inflammation and root apex damage, which could lead to the development of medications against bone loss due to endodontic infections. The study found that tumor necrosis factor-α receptor-1 (TNFR1) plays a crucial role in protecting teeth from inflammatory processes.
Brazilian researchers screened 160 existing drugs and identified six compounds effective against Toxoplasma gondii. Almitrine, a COPD treatment, showed significant reduction in brain parasite load. Further studies are needed to repurpose these drugs for toxoplasmosis treatment.
A recent study conducted at the University of São Paulo's Medical School found that isolating patients with carbapenem-resistant Enterobacteriaceae (CRE) in emergency departments (ER) for over two days can significantly reduce CRE transmission. The researchers also discovered that the ER structure, including bed layout and hand hygiene...
A study of almost 1,000 vegan diet followers in Brazil found less than a tenth the average prevalence of dysfunctional eating behaviors. The researchers identified disordered eating attitudes among only 0.6% of participants, primarily associated with motivations for dieting rather than diet type.
Researchers have developed a standardized synthetic molasses with a fully known composition that can be used as a culture medium for yeast fermentation. This breakthrough enables scientists to study the influence of specific components and develop bioprocesses worldwide, facilitating comparative research and industrial applications.
A study published in The Journal of Physiology found that exercise suppresses hunger by acting on hormones and metabolites. Researchers suggest that understanding these mechanisms could lead to new treatments for obesity.
Researchers at São Paulo State University have developed a technique to remove glyphosate, a widely used herbicide, from contaminated water. By using functionalized cellulose fibers from sugarcane bagasse, they can effectively adsorb and remove glyphosate residues from an aqueous medium.
The study predicts that climate change will lead to the loss of 99% of plant species in the Caatinga biome by 2060, resulting in a decrease in vegetation diversity and complexity. Biotic homogenization is expected to affect approximately 40% of plant assemblages, simplifying their composition due to the loss of rare species.
A novel biodegradable optical fiber made from agar has been developed to measure or modulate electrical currents in the body. The fiber can be used to monitor bioelectrical stimuli produced in the brain or muscles, serving as a biodegradable alternative to conventional electrodes.
A systematic review and meta-analysis of 195 clinical trials found that cell therapy can reduce the risk of death from COVID-19 by 60%. The studies, conducted in 30 countries between January 2020 and December 2021, used various types of cells, including mesenchymal stem cells and natural killer cells.
A study warns that Brazil's hydroelectric power plants are threatening the Williams' side-necked turtle, which depends on rapids for survival. The study estimates that 30% of its habitat could be lost, heightening the risk of extinction due to highly suitable areas becoming increasingly rare and less interconnected.
Researchers at the University of São Paulo estimate that Brazil's active legal mines will release 2.55 gigatonnes of CO2 into the atmosphere if not managed sustainably. The country's technosols, derived from mine tailings and waste, could offset up to 60% of soil-related emissions, according to a new study.
A comprehensive review of sedentary behavior's effects on health found excessive sitting to lead to insulin resistance, vascular dysfunction, and increased body fat. The study emphasizes the need for more research on effective interventions to reduce sedentary behavior.
A novel method to obtain acetone has been developed by a scientific collaboration between researchers in Brazil and Germany, using only light and photoactive iron chloride. The process is direct, safer, and cheaper than traditional methods, with fewer stages and no high temperatures or flammable intermediaries.
A study published in NPJ Aging reveals that COVID-19 exacerbates production of auto-antibodies associated with blood clotting disorders and aging. Researchers found that severe COVID-19 cases display a significant age-related increase in auto-antibodies, which can lead to tissue injury and organ damage.
Researchers found that adding niobium oxide to silicate glass increases bond density and connectivity, enhancing mechanical and thermal stability. This discovery could lead to the development of innovative glass formulations for various applications, including optics, medicine, and data transmission.
Researchers found that bariatric surgery leads to an increase in caries and periodontitis, as well as alterations in salivary inflammatory markers. The study's findings emphasize the importance of dental assessment for patients undergoing bariatric surgery.
Researchers at State University of Campinas found that coconut oil supplementation led to significant alterations in food intake, weight gain, and anxious behavior in mice. The study suggests that long-term consumption of coconut oil can contribute to the development of obesity and associated comorbidities.
The study found that despite invasive strains, all yeast lineages belonged to the ethanol fermentation environment, keeping the industrial process stable. The researchers plan to investigate yeast population dynamics in more detail, including the impact of external agents like bacteria.
Research on minimally processed vegetables reveals unsatisfactory microbiological safety, with Escherichia coli and Salmonella spp. found at high prevalence rates. The study calls for best practice assurance to guarantee products with quality and safety for consumers.
Researchers found that telomere shortening, a biomarker of cellular aging, accelerated in untreated obstructive sleep apnea patients. However, continuous positive airway pressure (CPAP) attenuated this damage. The study suggests that CPAP can reduce inflammation and oxidative stress, leading to slower aging.
A study by researchers at the University of São Paulo found that glitter can hinder the growth of cyanobacteria, a key component of aquatic ecosystems. The toxic effects of glitter on microorganisms have not been well-studied, but the findings suggest that even low concentrations can negatively impact susceptible organisms.
Brazilian researchers discovered an enzyme that can replace traditional catalysts in the production of aviation biokerosene, increasing renewable biofuel output. The enzyme, OleTP RN, promotes deoxygenation and is selective for different sizes and types of carbon chain.
Researchers used machine learning algorithms to analyze brain imaging data and identify changes associated with autism spectrum disorder. The study found that the methodology could determine ASD diagnosis with above 95% accuracy, highlighting potential for improved diagnostic methods.