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New research has demonstrated the presence of S. aureusin 40% of the cell phones of students sampled at a university. S. aureus is a common cause of hospital and community-based infections and is currently considered an important pathogen because of its level of antibiotic resistance. The research, conducted at the Western University of São Paulo, Brazil, is presented at ASM Microbe, the annual meeting of the American Society for Microbiology. Of the bacteria isolated, 85% were [...]

The number of calories a person eats directly influences the performance of different cells. A group of researchers from the University of São Paulo (USP) has shown that low-calorie meals have a protective effect against some diseases. Some of these studies were presented on Day One of FAPESP Week London, taking place February 11-13, 2019. The studies were conducted under the auspices of the Center for Research on Redox Processes in Biomedicine (Redoxome — one of the Research, Innovation [...]

Experts say that other issues pertaining to poor sleep quality, such as light exposure and certain behaviors, should be tackled ahead of resorting to use of the hormone melatonin to regulate sleep. But if it is used, an individual’s daily onset of natural melatonin production should be taken into account before deciding on an appropriate dose to supplement, they say. Melatonin, which is available over-the-counter in the United States but restricted in other developed countries, is typically [...]

Sixty years after melatonin was isolated and with more than 23,000 published studies showing the many functions of this hormone secreted by the pineal gland, guidelines should be discussed and established for its therapeutic use. This is the view expressed by José Cipolla Neto, Full Professor at the University of São Paulo’s Biomedical Science Institute (ICB-USP), and Fernanda Gaspar do Amaral, a professor at the Federal University of São Paulo (UNIFESP), both in Brazil, in an article [...]

The situation is relatively common, especially in winter. You come down with the flu, which lasts longer than usual. A few days later, you discover you have pneumonia. The relationship between influenza and pneumonia has long been observed by health workers. Its genetic and cellular mechanisms have now been investigated in depth by scientists in a study involving volunteers and conducted in the United Kingdom. Published in the journal Nature Immunology, the paper describes for the first time [...]