Veículo
MSN (EUA)
Em 2026: 104 notícias
Desde 1995: 365 notícias
Physical exercise can 'train' the immune system
Publicado em 08 de outubro de 2025
In addition to strengthening the muscles, lungs, and heart, regular physical exercise also strengthens the immune system.
This finding comes from a study of older adults with a history of endurance training, which involves prolonged physical activity such as long-distance running, cycling, swimming, rowing, and walking. Subscribe to our newsletter for the latest sci-tech news updates. An international team of researchers analyzed the defense cells of these individuals and found that [...]
-
Geomagnetic disturbances caused by sun may influence occurrence of heart attacks, especially among women
Publicado em 29 setembro 2025An article published in the journal Communications Medicine points to a correlation between disturbances in Earth's magnetic field resulting from solar storms and an increase in the frequency of heart attacks, especially among women. The authors reached this conclusion by analyzing data from the public health network of São José dos Campos, in the state of São Paulo, Brazil, recorded between 1998 and 2005, a period considered to be one of intense solar activity. Focusing on [...]ver notícia -
Study identifies candidates for therapeutic targets in pediatric germ cell tumors
Publicado em 19 setembro 2025A study conducted by the Molecular Oncology Research Center (CPOM) at Hospital de Amor in Barretos (formerly Barretos Cancer Hospital) in the state of São Paulo, Brazil, has identified possible biomarkers that could guide the development of more personalized therapies for pediatric germ cell tumors (GCTs). Although GCTs account for only 3% of childhood cancers, they challenge doctors and researchers due to their diversity and the toxicity of available treatments. The paper is published [...]ver notícia -
Variations in glucose levels may indicate severity of heart attack damage
Publicado em 15 setembro 2025According to research conducted by Brazilian scientists, high glucose levels may serve as a biomarker indicating a worse outcome in patients who have experienced their first acute myocardial infarction. The study demonstrated that glycemic variability, particularly glycemic delta, is associated with the size of the infarction and a reduction in left ventricular ejection fraction (LVEF). LVEF shows the strength of the heart's contraction; if it is reduced, heart failure may [...]ver notícia -
Green tea improves insulin sensitivity and glucose tolerance in obese mice
Publicado em 10 setembro 2025Green tea is an ancient beverage recognized for its medicinal and antioxidant properties. It has been widely studied for its beneficial effects on metabolic diseases, such as obesity and type 2 diabetes. Recent studies have deepened our understanding of the mechanisms of action of this infusion and revealed that green tea treatment reduced weight and significantly improved glucose sensitivity and insulin resistance in obese mice. These results reinforce the potential relevance of the beverage [...]ver notícia -
AI assessment indicates stress levels in farmed Amazonian fish
Publicado em 08 setembro 2025In Brazil, a group led by researchers from São Paulo State University (UNESP) in Jaboticabal, in collaboration with the Brazilian Agricultural Research Corporation (EMBRAPA), has developed an artificial intelligence (AI) tool to assess the stress levels of tambaqui (Colossoma macropomum), the most widely produced native fish in Brazil. The study ispublishedin the journalAquaculture. The results could impact both animal welfare and the selection of specimens that are more tolerant of [...]ver notícia -
Deadly bone disease may have doomed Southeast Brazil's long-necked dinosaurs
Publicado em 01 setembro 2025A set of bones belonging to sauropods, as long-necked dinosaurs are called, found in the municipality of Ibirá in the state of São Paulo, Brazil, reveals that the region was conducive to a bone disease that was fatal to these animals. The researchers found signs of osteomyelitis, a bone disease that can be caused by bacteria, viruses, fungi, or protozoa, in the fossils of six individuals from the Cretaceous period, approximately 80 million years ago. The bones show no signs [...]ver notícia -
Why is rainfall declining in the Amazon? New research says deforestation is the leading driver
Publicado em 01 setembro 2025For decades the world’s largest rainforest has been getting drier.A new studypublished inNature Communicationsdisentangles how much of this shift can be blamed on humanity’s warming of the planet and how much on the felling of trees within the Amazon itself. The answer: More than many had expected. Researchers led by Marco Franco and Luiz Augusto Toledo Machado at the University of São Paulo analyzed 35 years of land-use and atmospheric data across Brazil’s [...]ver notícia -
Liquid gold: Prototype harvests valuable resource from urine
Publicado em 25 agosto 2025A newly developed system transforms human waste into a powerful tool for profitable and sustainable energy and agriculture in resource-limited regions. The prototype, outlined in a Stanford-ledstudypublished inNature Water, recovers a valuable fertilizer from urine, using solar energy that can also provide power for other uses. In the process, the system provides essential sanitation, making wastewater safer to discharge or reuse for irrigation. "This project is about turning a waste [...]ver notícia -
SARS-CoV-2 infects testicular cells and uses cellular machinery to replicate, study finds
Publicado em 21 agosto 2025The COVID-19 virus hijacks the machinery of testicular cells that produce the hormone testosterone in order to replicate. It also appropriates the metabolic pathways of these cells and cholesterol, a precursor of testosterone, thereby altering lipid metabolism for its formation. This has been verified in a study conducted in Brazil by researchers from the Araraquara School of Dentistry at São Paulo State University (FOAr-UNESP), in partnership with the Ribeirão Preto School of [...]ver notícia