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Aerobic exercise at night has been shown to be more beneficial for regulating blood pressure in elderly hypertensive individuals than morning workouts. A study conducted at the School of Physical Education and Sports at the University of São Paulo (EEFE-USP) found that the reason for this is related to better regulation of a mechanism that compensates for sudden changes in blood pressure, known as baroreflex sensitivity. “There are multiple mechanisms for regulating blood [...]

A study involving Brazilian researchers appears to have shown that the standard model currently used for solar flares is outdated. The data obtained through telescopic observation of the Sun could not be explained by any of the theories applied. Solar flares are extremely intense events that occur in the Sun’s atmosphere and last from minutes to a few hours. According to the standard model, the energy that triggers such phenomena is transported by accelerated electrons that rush from [...]

For the second year in a row, Brazil presented drop in the volume of scientific research produced . The data is from the report of Elsevier-Bori which points to a 7.2% decrease in scientific production in 2023 compared to 2022. The document was released at the end of July. Brazil is not alone in its decline. Of the 53 countries analyzed, 35 had a negative variation, such as the United States and Japan. To prepare the study, data from countries that produced more than 10,000 scientific [...]

Evidence shows that, in Brazil, many cesarean sections scheduled to take place during the Carnival holiday are brought forward or postponed. Researchers from the Insper Institute of Education and Research investigated the effects of this manipulation of the birth date on the health of babies. The results were published this month in the journal Health Economics. The postponement of births shows the article, generates an increase in gestational age and a reduction in neonatal mortality. [...]

Study published in the journal Cancer Research reveals that treatments commonly used to combat glioma – one of the most common types of brain cancer – can alter the way tumor DNA behaves and its aggressiveness. According to the authors, the discovery may represent a first step towards modifications in the current therapeutic approach. Gliomas represent around 42% of all brain tumors, including benign ones, and 77% of malignant ones, that is, those that are aggressive and [...]

Investigating the strategy used by SARS-CoV-2 to escape cytotoxic immunity – mediated by cells known as lymphocytes – led a group of researchers to identify an important protein in this mechanism, ORF6, describes an article published in the journal cell. O work led by Wilfredo Garcia-Beltran and Julie Boucau, from Ragon Institute of Mass General, MIT and Harvard (United States), was first authored by Marcella Cardoso, a Brazilian postdoctoral researcher at Harvard Medical School [...]

A group of Brazilian researchers developed a functional bread with the potential to prevent asthma – a respiratory disease responsible for around 350,000 annual hospitalizations in the Unified Health System (SUS). Described in the magazine Current Developments in Nutrition and already patented (protocol number BR1020210266465), the formulation contains yeast Saccharomyces cerevisiae UFMG A-905, a probiotic that has already proven effective in alleviating the symptoms of the disease in [...]

Loss of memory and attention is a phenomenon frequently reported by survivors of severe Covid-19. However, this type of sequelae was also observed in people who had a mild form of the disease more than 18 months after infection, report researchers from the University of São Paulo (USP) in a study published in the journal BMC Psychology. According to the authors, the discovery warns of the need for more comprehensive rehabilitation programs, which take into account the cognitive impacts [...]

Researchers from the University of São Paulo (USP) showed, for the first time, that the virus SARS-CoV-2 it can be present in patients' sperm up to 90 days after hospital discharge and up to 110 days after the initial infection, reducing semen quality. The research results, recently published in the journal Andrologywarn of the need to consider a period of “quarantine” after the illness for those who intend to have children. More than four years after [...]