Despite advancements in disease research, neglected tropical diseases and others continue to require attention, with only a small proportion of new drugs addressing these conditions. Novel treatments like bedaquiline and tafenoquine offer hope, but much work remains to be done.
Researchers have discovered that atorvastatin, a drug typically used to control cholesterol, can also treat cachexia, a condition characterized by rapid weight loss and muscle atrophy. In mouse studies, treatment with atorvastatin attenuated adipose tissue remodeling, leading to rapid weight loss and muscle atrophy.
Researchers used C. elegans to investigate the importance of NDEL1 genes in treating schizophrenia. They found that suppressing these genes may be linked to resistance to certain antipsychotic drugs.
Researchers discovered a way to regulate the beta-catenin-dependent Wnt signaling pathway using a chemically synthesized compound. The inhibitor reduces AAK1's frequency in endocytosis, blocking arbovirus invasion and potentially treating breast and cervical cancer.
Brazilian scientists have found that the strong odor released by some amphibian species is produced by bacteria, assisting in the animal's mating process. The study suggests that the odor serves to permit mutual recognition between males and females of the same species for mating purposes.
The researchers developed a molecule called SAMβA that not only stabilizes but regresses heart failure in rats. The molecule improves the heart's capacity to pump blood and reduces oxidative stress in heart cells.
Researchers developed 13 bioluminescence sensors to measure intracellular signaling pathways and detect pharmaceutical action. The biosensors provide a complete answer, or 'signaling profile,' allowing for more accurate drug testing and development.
A recent study reconstructed the evolutionary history of amoebae, showing that life on Earth was more diverse than previously thought, with ancestors of Thecamoebians evolving at least 750 million years ago. This discovery changes our understanding of current climate change and provides new insights into the evolution of life.
Researchers have developed a hybrid material combining molybdenum disulfide and azobenzene that exhibits unique optical and transport properties. The structure makes the material attractive for building compactable and malleable quasi-two-dimensional transistors powered by light.
A study published in Scientific Reports identifies changes to neutrophils that increase vulnerability of obese and diabetic individuals to infection. Alterations to neutrophils, a type of white blood cell, lead to impaired activation of toll-like receptors (TLRs), weakening the immune system's ability to combat pathogens.
Researchers have discovered that Lake Pebas, a massive wetland in western Amazonia, existed until 8.5 million years ago, contrary to previous assumptions. The lake's presence was confirmed through geochronology of mineral zircon specimens from two paleontological sites, providing new insights into the region's geological history.
A study published in Nature Climate Change finds that climate change can redistribute the strength of ecological interactions between predator and prey species. Higher temperatures lead to more intense predation pressure, while increased climate instability weakens predators' effectiveness in controlling pests.
Researchers identified specific genes in three Salmonella serotypes that enable the bacteria to survive in poultry and infect humans. The study aims to develop a vaccine by generating mutant forms of these bacteria.
A new photometric telescope, Sun-THz, will measure solar flares on the International Space Station. Developed in Brazil, it will work alongside a Russian instrument to take consistent measurements.
The X-Arapuca is an enhanced version of the light detector developed by Brazilian researchers, providing greater efficiency and introducing minor modifications. The device will be installed in the Deep Underground Neutrino Experiment (DUNE), a project searching to discover new properties of neutrinos.
Researchers from São Paulo and the UK presented advances in new battery development to address increasing demand for energy storage. Lithium-air batteries have great potential for use in transportation, power distribution networks, and can store energy for up to 24 hours at a low cost.
Researchers are studying animal venoms to identify molecular targets for diseases such as osteoarthritis, rheumatoid arthritis, cancer, and neurodegenerative diseases. The study found promising antitumoral effects and potential new compounds that can be used as medicines.
Researchers at the Research Center for Gas Innovation are developing a carbon capture storage system that can separate CO2 and methane in oil and gas exploration. The technology involves injecting CO2 and CH4 into salt caverns, with the potential to produce clean energy from fossil fuels.
Researchers found that low-calorie diets can protect the brain from neuronal cell death associated with diseases such as Alzheimer's, Parkinson's, and cerebral vascular accident. Caloric restriction also improved insulin secretion and increased mitochondria efficiency in cells.
A Brazilian project aims to assess how patients awaiting kidney transplants react to porcine blood, with the goal of reducing the country's transplant waiting list. The initiative uses gene-edited pigs and CRISPR-Cas9 technology to make organs compatible with human bodies.
Researchers studied genome sequences of various species to understand the genetic factors behind limb loss in snakes. By analyzing gene regulatory elements, they found that only one gene was lost in snakes, but not its associated regulatory element, suggesting a more complex process.
A study of 223 restaurant meals in six countries found 94% exceed recommended daily calorie intake. Popular meals like Brazil's rice and chicken dish contain up to 1656 kcal.
A new study found that physically active men with a high waist-stature ratio are more likely to develop heart disorders than those with lower ratios. The researchers suggest that the waist-stature ratio is a better predictor of cardiovascular risk than body mass index.
Researchers at COSINE-100 failed to confirm the existence of dark matter using sodium iodide crystals, unlike previous DAMA/LIBRA experiment. The detection is considered crucial due to the similarity in experimental setup and material used.
A recent study found significant correlations between the population structure of Aedes aegypti mosquitoes and urbanization levels in São Paulo City. The researchers discovered that environmental pressures due to urbanization lead to the selection of phenotypes better adapted to the conditions, resulting in wing shape variability.
Experiments with Bose-Einstein condensates and optomechanical cavities reveal an increase in irreversibility due to quantum fluctuations. This counterintuitive discovery challenges current understanding of entropy production.
A new study reveals that large dams in developing countries ignore climate change impacts, displacement of communities, and economic damages. The researchers argue that these effects should be factored into the total cost of hydropower projects.
Brazilian researchers used biogeographic analysis to study trilobites, arthropods that became extinct over 252 million years ago. They found paleobiogeographic patterns among trilobites and inferred their ancestral range in the southern hemisphere.
Researchers found rutin reduces clotting and protects against snake venom's clotting action, minimizing bleeding and inflammation. Rutin inhibits tissue factor activity, a key player in the clotting process, to prevent secondary complications of viper bites.
A new clause in Brazil's Forest Code could result in the loss of protection for up to 15 million hectares of tropical rainforest in the Amazon. This would compromise efforts to regularize legal reserves and lead to huge losses of biodiversity, water supply, and greenhouse gas emissions.
A study found that four mammalian lineages coexisted with the dinosaurs and survived the end-Cretaceous mass extinction. Some species were more resilient than others, while others diversified rapidly in response to new environmental conditions.
Researchers at São Paulo State University synthesized a compound called GA-Hecate that effectively inhibits the replication of hepatitis C virus (HCV) in multiple stages. The compound also displays activity against bacteria, fungi, and cancer cells, and is being tested against Zika and yellow fever viruses.
A study by the University of São Paulo's Biomedical Science Institute shows that sofosbuvir can eliminate both chikungunya and yellow fever viruses without damaging human cells. This finding has significant implications for public health, particularly in Brazil where a chikungunya epidemic is forecasted.
The Butantan Institute and MSD will exchange proprietary process information and clinical trial data, accelerating vaccine development. The partnership aims to create a tetravalent vaccine effective against all four dengue virus serotypes.
Researchers propose guidelines for the therapeutic use of melatonin to address potential health risks, citing over 23,000 published studies. The guidelines aim to provide a systematic framework for analyzing melatonin's effects and role in human physiology and pathophysiology.
Researchers found that influenza virus impairs immune response to pneumococcus, especially monocyte activity. The study identified a key cellular mechanism controlling pneumococci proliferation and movement from nose to lungs.
The study found that over half (55.3%) of the 365 victims had consumed alcohol or drugs shortly before their death, with a high prevalence of cocaine and cannabis use. This correlation suggests a significant link between substance use and violent deaths in São Paulo City.
A study found a correlation between oral cancer progression and the abundance of specific proteins in tumor tissue and saliva. The discovery offers a new parameter for predicting disease progression and may help guide treatment choices.
A new study reveals that sambaqui societies living in coastal Atlantic Forest areas between 8,000 and 1,000 years ago consumed a range of plants and had a more diversified economy than previously believed. Analysis of their middens shows evidence of plant cultivation and high consumption of carbohydrates.
Researchers have discovered a way to create artificial magnetic fields using graphene sheets with a twist, enabling the control of electronic properties through electrical fields. This breakthrough has clear technological potential and could lead to new materials with unique properties.
Researchers have developed an ointment to counter the effects of brown recluse spider bites, which can cause skin necrosis and renal failure. The trial has started in Brazil with 240 participants, comparing the effects of the ointment with a placebo.
Brazilian researchers clarify aquatic dune dynamics, contradicting conventional models. Their findings have applications in understanding Martian terrain and optimizing oil flows.
Experimental inhibition of prostaglandin E2 enhanced the ability of mice to combat infectious colitis, resulting in increased migration of defense cells and production of antimicrobial peptides. Inhibiting PGE2 also favored the expression of defensins, considered natural antibiotics, in the colon.
A study in Scientific Reports identifies mechanisms of pesticide resistance in cattle ticks, which contribute to significant economic losses. The study reveals that the ticks' ability to detoxify toxicants, including ivermectin, is a key factor in their resistance.
Research reveals Salmonella species, causing foodborne diseases, are resistant to multiple antibiotic classes. The study identified 39 genes linked to this resistance, shedding light on the epidemiology of salmonellosis in Brazil.
A comprehensive study confirms the existence of a single ancestral population for all Amerindian ethnic groups, contrary to traditional theories linking Africa or Australasia. The study reveals that the Lagoa Santa people were descendants of Clovis culture migrants from North America.
Researchers identified the function of a protein controlling allergic diseases, which can lead to medication development for autoimmune disorders and certain cancers. Increasing this protein blocks CD4+ T lymphocytes responsible for producing cytokines triggering allergic reactions.
Researchers identified luciferin in a non-luminescent Brazilian cave worm larva, sparking interest in its potential biochemical functions. The discovery is the first of its kind in the Neotropics and opens up new avenues for research on the molecule's applications in biotechnology, medicine, and pharmaceuticals.
Researchers identified 35 genes linked to reproduction, milk production, growth, meat quality, and health in Gir cattle. These genes are a key step towards developing novel lines with desired traits for producers and consumers.
A study published in Scientific Reports found Zika virus in dead monkeys in Brazil, indicating a potential sylvatic transmission cycle. The infected animals were more vulnerable to attack by humans, highlighting the need for further research on the role of wild animals in maintaining the urban cycle of Zika.