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Brightsurf
Em 2026: 114 notícias
Desde 1995: 427 notícias
Study confirms effectiveness of medicinal plant against SARS-CoV-2 virus
Publicado em 29 de abril de 2026
A study has revealed that galloylquinic acids extracted from the leaves of Copaifera lucens Dwyer, a tree endemic to Brazil primarily found in the Atlantic Forest, have a multi-targeted effect against SARS-CoV-2, the virus that causes COVID-19.
The species was chosen because the research group led by Jairo Kenupp Bastos , a pharmacist and professor at the Ribeirão Preto School of Pharmaceutical Sciences at the University of São Paulo (FCFRP-USP) who coordinated the study, has extensive [...]
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Swimming beats running for strengthening the heart, study finds
Publicado em 29 abril 2026A study conducted on an animal model by researchers at the Federal University of São Paulo (UNIFESP) in Brazil demonstrated that swimming is more effective than running in promoting healthy heart growth and improving the strength with which the heart muscle (myocardium) contracts. “Swimming and running are two excellent ways to improve cardiorespiratory health and protect the heart muscle, but we wanted to know if one could be even more beneficial than the other. We found that, although [...]ver notícia -
Soil fertilization with Amazonian dark earth increases tree diameter by up to 88%
Publicado em 28 abril 2026A study conducted in the Brazilian state of Amazonas with support from FAPESP 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. For the Brazilian firetree ( Schizolobium amazonicum ), the increase was 20% in height and 15% in trunk [...]ver notícia -
Decline in prey increases risk of jaguar extinction in Atlantic Forest
Publicado em 28 abril 2026In 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 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. Jaguar [...]ver notícia -
Brazil has lost 1.4 billion tons of soil carbon due to the conversion of natural areas to agriculture
Publicado em 24 abril 2026The conversion of Brazil’s native biomes into agricultural areas has resulted in an estimated loss of 1.4 billion tons of soil carbon. This amount is equal to the emission of 5.2 billion tons of carbon dioxide (CO₂) equivalent, a unit of measurement used to standardize the emission of different greenhouse gases, and was calculated based on data collected from studies conducted over the past 30 years. These findings are from a study published in the journal Nature Communications by [...]ver notícia -
Ultra-processed foods damage your focus even if you eat healthy
Publicado em 23 abril 2026New research from Monash University, the University of São Paulo and Deakin University shows 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, a journal of the Alzheimer’s Association, examined the diets and cognitive health of more than 2,100 Australian dementia-free adults [...]ver notícia -
Fires, droughts, and windstorms reduce the diversity of Amazonian vegetation
Publicado em 23 abril 2026Even 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. On April 20, research was published in the Proceedings of the National Academy of Sciences (PNAS) , one of the world’s most cited scientific journals, showing that vulnerable species are [...]ver notícia -
Biosensor identifies pancreatic cancer in early stages
Publicado em 22 abril 2026Brazilian 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. “In its early stages, pancreatic cancer is asymptomatic, which means the disease is often identified too late. That’s also why [...]ver notícia -
Unraveling the genomic roots of Indigenous peoples
Publicado em 22 abril 2026Research into human genomic diversity has a number of applications in biomedicine, evolution, and history. However, many populations have historically been underrepresented on the human genomic map. This is the case of Native American populations, whose history of adaptation and genetic diversity remains largely unknown. For the first time, an international study led by the Institute of Evolutionary Biology ( IBE ), a joint center of the Spanish National Research Council (CSIC) and Pompeu [...]ver notícia -
Study identifies network of autoantibodies in neurodegenerative diseases
Publicado em 22 abril 2026Researchers 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 autoantibodies – [...]ver notícia