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Microplastics are now so ubiquitous we're drinking, eating, and inhaling them. As a result, they're showing up in our poop, placentas, reproductive organs, and brains. Now these fossil-fuel-derived particles, less than 5 mm in size, have been found deep within our bones. A new review of 62 studies suggests microplastics and smaller nanoplastics are impacting our skeletal health in multiple ways. "A significant body of research suggests that microplastics can reach deep [...]

Mysteries abound in the Solar System. Though it can sometimes seem like we've learned a lot, you can pick any object in the Solar System and quickly come up with unanswered questions. That's certainly true of tiny Mercury. Mercury's mystery lies in its core. Ground based radio observations during the 1960s and 1970s showed that it had a massive core. The Mariner 10 mission in 1975, the first mission to Mercury, provided more accurate measurements, and the Messenger mission [...]

Researchers supported by FAPESP have found antibiotic-resistant bacterial clones in wild birds at a rehabilitation center. The identified Escherichia coli clones have been found in community- and hospital-acquired human infections worldwide, and they were present in the intestinal tracts of a vulture and an owl. The impact of these strains on animals is unknown; however, in humans, they are known to cause infections in patients with weakened immune systems for which there are few effective [...]

Brazilian researchers, in partnership with French institutions, have developed a tool that can predict how patients will respond to natalizumab, one of the most commonly used drugs for treating multiple sclerosis. Despite its effectiveness, about 35% of users do not respond completely to therapy and experience a return of symptoms within two years of starting treatment. Additionally, while it helps reduce the frequency and severity of outbreaks and slows disease progression, it can cause [...]

Microplastics, tiny plastic particles less than 5 mm in size, have been detected deep within human bones, raising significant health concerns. A comprehensive review of 62 studies highlights how these fossil-fuel-derived particles are infiltrating our bodies, accumulating in various tissues, including bones. This alarming discovery indicates that microplastics could be impacting skeletal health in several ways, according to researchers. The findings were presented by Rodrigo Bueno de [...]

Frequent exercise doesn't just strengthen the heart – it also changes the nerves that control it, according to new research which could guide more targeted and effective care for common heart problems. The study, led by the University of Bristol (UK), shows for the first time that moderate aerobic training reshapes nerves that drive the heart, and affects them on each side of the heart differently. The research is published in the journal Autonomic Neuroscience today (Wednesday, 24 [...]

Scientists have identified a hidden population of asteroids that could pose a serious threat to Earth, even though we can’t see them with current telescopes. These objects, known as Venusian co-orbital asteroids, share their orbit with Venus and remain extremely difficult to detect because of their position in the sky. A new study led by researchers at São Paulo State University (UNESP) in Brazil warns that some of these asteroids could one day cross Earth’s path and, [...]

Recent restrictions on public policies and healthcare for transgender people in several countries, including Brazil, threaten to dismantle existing care structures for this population and could lead to setbacks. This warning is contained in an article published in the scientific journal Nature Medicine by a group of Brazilian researchers. The text discusses the new resolution ( No. 2,427 ), issued by the Federal Council of Medicine (CFM) in April. The resolution banned [...]

Frequent exercise doesn't just strengthen the heart – it also changes the nerves that control it, according to new research which could guide more targeted and effective care for common heart problems. The study, led by the University of Bristol (UK), shows for the first time that moderate aerobic training reshapes nerves that drive the heart, and affects them on each side of the heart differently. The research is published in the journal Autonomic Neuroscience today [...]