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Regular physical exercise, such as resistance training, can prevent Alzheimer’s disease, or at least delay the appearance of symptoms, and serves as a simple and affordable therapy for Alzheimer’s patients. This is the conclusion of an article published in Frontiers in Neuroscience by Brazilian researchers affiliated with the Federal University of São Paulo (UNIFESP) and the University of São Paulo (USP). Although older people and dementia patients are unlikely to [...]

Which kind of resistance training promotes more muscle growth: low load with many repetitions or high load with fewer repetitions? According to a study conducted at the State University of Campinas (UNICAMP) in São Paulo state, Brazil, it makes no difference. The study lasted eight weeks and involved 18 volunteers in two different training protocols. One group performed high-load (HL) exercises with fewer repetitions, while the other did low-load (LL) exercises with more repetitions. [...]

A daily dose of a strain of brewer’s yeast used to produce cachaça (distilled spirit made from fermented sugarcane juice) can act as a preventive against asthma, according to a Brazilian study involving male mice. The results are reported in an article published in the journal Probiotics and Antimicrobial Proteins. The authors are researchers at the University of São Paulo (USP) and the Federal University of Minas Gerais (UFMG). The yeast strain used in the study was [...]

The process of cellular aging is multifactorial, and its investigation involves several knowledge areas. Finding ways to protect cells against damage is a key focus. A group of researchers recently achieved noteworthy progress in this regard, as evidenced by an article published in Scientific Reports, a Springer Nature journal. According to the authors, in their study, the protein klotho protected glial cells against inflammation and death. Glia are non-neuronal cells of the brain and nervous [...]

A study conducted at the University of São Paulo (USP) in Brazil and described in an article published in the journal Scientific Reports shows that anti-inflammatory drugs commonly taken by children may be associated with dental enamel defects (DEDs) currently seen in about 20% of children worldwide. The authors, who are affiliated with the Ribeirão Preto Dental School (FORP-USP) and School of Pharmaceutical Sciences (FCFRP-USP), investigated the effects of celecoxib and [...]

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 [...]

When our cells process the oxygen we breathe and the food we eat every day in order to survive, they generate potentially toxic by-products popularly known as “free radicals”. Some of these molecules perform functions essential to the organism, but if there are too many of them the cells’ internal structures can be damaged, preventing the cells from functioning properly and potentially leading to chronic disease. This process is called oxidative stress. Our bodies contain a [...]

8% of people infected by SARS-CoV-2 may be able to transmit the virus for more than two months, without necessarily manifesting any symptoms In a 38-year-old man who manifested mild symptoms of COVID-19 for 20 days, the novel coronavirus continued to be detected in his organism and to undergo mutations for 232 days. If he had not been given continuous medical care, maintained social distancing and worn a mask, he could have spread the virus throughout these seven months. The atypical case [...]

Torquetenovirus (TTV) is one of the viruses most frequently found in the human organism. It is also common in monkeys and domestic animals. Its presence has not been associated with any known disease, but its excessive replication is a sign that something is wrong with the immune system. The correlation between high TTV load and immunosuppression has been used in medicine in certain contexts, such as monitoring transplant patients who take medication to prevent rejection of the transplanted [...]