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Proven to protect against a wide array of diseases, exercise may be the most powerful anti-aging intervention known to science. However, while physical activity can improve health during aging, its beneficial effects inevitably decline. The cellular mechanisms underlying the relationship among exercise, fitness and aging remain poorly understood. In a paper published in the Proceedings of the National Academy of Sciences, researchers at Joslin Diabetes Center investigated the role of one [...]

Vitamin D plays an important role in the regulation of calcium and phosphorus absorption by the organism. It also helps keep the brain and immune system working. Researchers at the Federal University of São Carlos (UFSCar) in Brazil and University College London (UCL) in the United Kingdom have now shown that vitamin D supplementation reduces the risk of dynapenia in older people by 78%. Dynapenia is an age-associated loss of muscle strength. It can be partially explained by muscle [...]

The cerebral cortex is the outer layer of gray matter over the hemispheres. It is the largest site of neural integration in the central nervous system and plays a key role in complex functions A Brazilian study published in the journal PNAS describes some of the effects infection by SARS-CoV-2 can have on the central nervous system. A preliminary version (not yet peer-reviewed) posted in 2020 was one of the first to show that the virus that causes COVID-19 can [...]

The banana borer Cosmopolites sordidus and the disease Fusarium wilt, caused by the soil-borne fungus Fusarium oxysporum, are among the most harmful pests that threaten the livelihoods of banana growers, who face major challenges in attempting to control them. The former is a species of weevil that bores into the plant’s rhizome (the underground stem that produces roots and shoots), weakening its root system, reducing nutrient absorption and significantly lowering yield. The adult insect [...]

A study by Brazilian researchers analyzed risk factors and found that reducing smoking prevented most deaths from cardiovascular disease.

Patients with the most severe post-Covid smell and taste disorders are likely to perform worst in cognitive tests, especially when these involve memory. Patients with the most severe post-Covid smell and taste disorders are likely to perform worst in cognitive tests, especially when these involve memory, finds a study strengthens the hypothesis that loss of smell could be an early sign of the impending onset of Alzheimer's disease. In the study, a group of Brazilian [...]

An article published in the journal Frontiers in Cellular and Infection Microbiology reports a study by researchers at the State University of Campinas (UNICAMP) and the University of São Paulo (USP) in Brazil showing how a human protein interacts with a SARS-CoV-2 protein, and describing one of the ways the virus that causes COVID-19 recruits cells to replicate. In laboratory tests, the researchers inhibited interaction between the molecules using a drug and thereby reduced viral [...]

In a rare case, Brazilian scientists used breast milk to treat Covid-19 in a woman with a rare genetic disease that makes her immune system unable to combat viruses and other pathogens. The patient who was diagnosed with Covid-19, in March 2021, tested positive for 124 days by RT-PCR. She was advised by the team from the University of Campinas (UNICAMP) in Sao Paulo, to take 30 millilitres of breast milk every three hours for a week. The breast milk was donated by a woman who had been [...]