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A new blood test combined with a standardized questionnaire and artificial intelligence may transform the way leprosy is diagnosed in Brazil. Researchers at the University of São Paulo (USP) tested the new test in Brazil using blood samples collected during a COVID-19 population survey. The method showed potential for identifying the disease earlier, in its initial stages, when symptoms are subtle and traditional laboratory tests often fail. The new diagnostic method was evaluated in a [...]

Experiments conducted in Brazil using laboratory rats have shown that graphene-based structures can act as a powerful ally in bone regeneration. These structures are made of sheets of the chemical element carbon that are just one atom thick. They can help heal fractures or bone loss. In the tests, the biocompatible matrix containing graphene facilitated nearly 90% repair of the damage sustained by the test subjects one month after the fracture was induced in the laboratory—a superior [...]

A research team led by scientists from the State University of Campinas (UNICAMP) in São Paulo, Brazil, has made significant progress in understanding the relationship between gut microbiota and intestinal cells. The study, published in the journal Gut Microbes, showed how microbiota and the compounds it produces, such as butyrate, influence the functioning of cells that line the large intestine. This intestinal layer is in close contact with bacteria and produces mucus that contributes to its [...]

Living a long, healthy life is a dream for many individuals. But making that dream come true includes adopting plenty of self-care habits, like regular exercise, a nutritious diet, and stress management techniques. That said, nobody has a crystal ball to view their destiny, and genetics and lifestyle choices play a major role in everyone’s future. But one thing’s for certain, according to recent research: Too much belly fat and not enough muscle mass is a recipe for disaster—especially [...]

Researchers in Brazil have developed a graphene-based scaffold derived from industrial waste that attracted bone cells and promoted fracture repair in laboratory and animal tests. The work, published in Scientific Reports, used human bone marrow stem cells and a rat model to show that the material is biocompatible and can accelerate new bone formation. If these early results hold up in larger studies, the approach could offer an affordable, eco-friendly alternative to conventional bone grafts [...]

You pour a glass of wine after a long day. Maybe your partner steps outside for a cigarette. Maybe there's cannabis in the mix, too. For many parents, these habits feel separate from their kids. They are your adult choices, after all. But new research suggests that the pattern of substance use inside a home may matter more than many families realize. A study just published in Addictive Behaviors found that when parents use multiple substances (and not just alcohol alone), their teens are [...]

Scientists have decoded the complete genome of the golden lancehead, uncovering how its venom evolved and how isolation shaped its survival. The findings could help conserve this critically endangered island predator and inspire new medical treatments. The research also links the snake’s evolutionary path to past environmental shifts. First complete genome of golden lancehead A team at Brazil’s Butantan Institute has mapped the full genome of the golden lancehead (Bothrops insularis), [...]

A colony of leafcutter ants is home to more than just one species. Each year, studies reveal new layers of complexity in these ecosystems, where various fungi and bacteria thrive alongside the ants, resulting in countless interactions and the production of unknown compounds. In their latest study, researchers affiliated with São Paulo State University (UNESP) and the University of São Paulo (USP), demonstrate how bacteria in the colonies respond to different diets provided by ants to the [...]

The Nanomedicine and Nanotoxicology Group (GNano) at the University of São Paulo's São Carlos Institute of Physics (IFSC-USP) in Brazil has discovered a way to transform hydroxyapatite, a bioceramic material, into a nanoparticle with enhanced intrinsic luminescence. This paves the way for the use of biocompatible, low-cost nanomaterials in biomedical imaging techniques.   "We've demonstrated that the incorporation of carbonate groups into the hydroxyapatite structure increases [...]