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In addition to habitat loss and illegal hunting, the jaguar (Panthera onca) faces another threat that increases its risk of extinction in the South American Atlantic Forest: food scarcity. A study by Brazilian researchers has found that the availability of jaguar prey is reduced, even in the protected areas of the biome, which covers approximately 15% of Brazil and extends across 17 states in the South, Southeast, and Northeast regions, as well as parts of Argentina and Paraguay. The paper is [...]

A study conducted in the Brazilian state of Amazonas has demonstrated that small amounts of Amazonian dark earth (ADE)—an anthropogenic soil created by ancient Amazonian populations—can increase the height and diameter of the pink trumpet tree (Handroanthus avellanedae) by up to 55% and 88%, respectively. This tree also occurs in the Atlantic Forest. The research is published in the journal BMC Ecology and Evolution. For the Brazilian firetree (Schizolobium amazonicum), the increase was [...]

A new study shows that a specific type of silicone, the so-called methylsiloxanes, is widely present in the atmosphere across diverse environments. Also, concentrations appear to be much higher than expected. According to the researchers, this raises concerns about their potential—yet poorly understood—effects on human health and the climate. Methylsiloxanes are commonly used in industry, transportation, cosmetics, and household products. The study was supervised by Utrecht University and [...]

Scientists have been left baffled by a mysterious pollutant that's 'widely present' in the atmosphere. Methylsiloxane is a specific type of silicone commonly used in industry, transportation, cosmetics, and household products. Previous studies have suggest that it is only found in the air in areas close to traffic, through the evaporation of industrial products. However, a new analysis shows that this isn't the case. A study led by researchers from Utrecht University [...]

Researchers at the University of São Paulo (USP) in Brazil discovered that neurodegenerative diseases, such as Alzheimer's, Parkinson's, and multiple sclerosis, are more complex than previously thought. Their analysis of nearly 600 blood samples from patients with and without these diseases revealed that neurodegenerative processes extend beyond the central nervous system, affecting various targets throughout the body. "We conducted a systemic analysis based on [...]

Brazilian researchers have developed an electrochemical sensor that can detect pancreatic cancer in its early stages. The device identifies the biomarker molecule CA19-9, which is associated with the disease, at low concentrations in a patient's blood. This offers a simpler, more affordable alternative to conventional tests, which are less accessible. A paper describing this work appears in ACS Omega. "In its early stages, pancreatic cancer is asymptomatic, which means the disease is [...]

Even after fires, severe droughts, and windstorms, the vegetation in degraded Amazonian forests demonstrates a high capacity for regeneration, including tree species. However, recovery occurs under new ecological conditions, resulting in a loss of diversity and increased vulnerability to new disturbances. Even after fires, severe droughts, and windstorms, the vegetation in degraded Amazonian forests demonstrates a high capacity for regeneration, including tree species. However, recovery [...]

Your high-tech water filter could become a thing of the past. A recent study shows that Moringa oleifera, an ancient herbal plant known as the “tree of life,” can remove microplastics from water. Researchers at the Institute of Science and Technology of São Paulo State University found that moringa seeds, native to India and other tropical regions, can remove toxins from water and perform as well as chemical treatments. Moringa has been known to have a wide range of benefits that [...]

New research from Monash University, the University of São Paulo and Deakin University shows that a diet high in heavily processed foods can negatively impact the brain's ability to focus and increases the risk of developing dementia. The study published in Alzheimer's Dementia: Diagnosis, Assessment Disease Monitoring, examined the diets and cognitive health of more than 2,100 Australian dementia-free adults middle-aged and older. The findings demonstrate that a slight daily [...]