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A combination of inflammatory cytokines in the blood and regular cannabis use, or use at a young age, can increase the chances of developing psychiatric disorders, researchers have demonstrated. A first-of-its-kind study by researchers at the University of São Paulo ‘s Ribeirão Preto Medical School (FMRP-USP) in Brazil found that individuals exposed to a combination of these two factors – the presence of pro-inflammatory cytokines in the blood and cannabis use (either [...]

The fungus Fusarium verticillioides is one of the causes of red rot, the most serious sugarcane disease. Losses average around USD 1 billion per harvest in Brazil alone. The traditional approach to the etiology of this disease is that it is triggered by Diatraea saccharalis, a moth usually referred to as the sugarcane borer. In the caterpillar stage, this insect bores into the stem of the plant, which is later infected opportunistically by the fungus. However, a study conducted in Brazil by [...]

Most cities in São Paulo state (Brazil) have low potential capacity to adapt to climate change in terms of the ability to formulate public policy that facilitates the revamping of their housing and transportation systems, for example, to account for the impact of climate change. This is the main conclusion of a study conducted by researchers at the University of São Paulo (USP) in partnership with colleagues at the University of Campinas (UNICAMP) and the Federal University [...]

Former dengue patients who contract Covid-19 could experience more severe symptoms, a small study has suggested, raising concerns that countries in Asia, where mosquito-borne diseases are endemic, could face a "double burden" at a time health systems are stretched thin by the coronavirus pandemic. The study, published in May by the University of Oxford's peer-reviewed journal Clinical Infectious Diseases, analysed blood samples from 1,285 people in the small town of MAncio Lima [...]

To investigate factors that can jeopardize pregnancy success in cattle, researchers at the University of São Paulo (USP) in Brazil used a kind of chip to mimic the environment of the endometrium, the tissue that lines the inside of the uterus.  The study was conducted by biologist Tiago Henrique Camara de Bem, a postdoctoral fellow at the University of São Paulo’s School of Animal Science and Food Engineering (FZEA-USP), in collaboration with four researchers at [...]

A study conducted by a group of Brazilian researchers contributes to a deeper understanding of the molecular basis for schizophrenia, and potentially to the development of more specific and effective treatments for the disease. The medications currently available on the market act generically on the brain and can have severe adverse side effects. Treatment of post-mortem samples from the hippocampus of schizophrenic patients with an NMDA receptor antagonist pointed to biological processes [...]

– The novel coronavirus is transmitted mainly via inhalation of saliva droplets or respiratory secretions suspended in air, so that face covering and social distancing are the most effective ways to prevent COVID-19 until enough vaccines are available for all. In Brazil, fabric masks are among the most widely used because they are cheap, reusable and available in several colors or designs. However, this type of face covering’s capacity to filter aerosol particles of a size [...]

Besides common symptoms such as fever, cough and respiratory distress, some children have an atypical form of COVID-19 known as multisystem inflammatory syndrome in children (MIS-C), characterized by persistent fever and inflammation of several organs, such as the heart and intestines, as well as the lungs to a lesser extent. Reports of MIS-C have been increasingly associated with severe cases and deaths in several countries including Brazil since the onset of the pandemic. Researchers [...]

Several indicators point to the adverse impacts of climate change on the planet’s vegetation, but a little-known positive fact is the existence of climate-change refugia in which trees are far less affected by the gradual rise in temperatures and changing rainfall regimes. Climate-change refugia are areas that are relatively buffered from climate change, such as wetlands, land bordering water courses, rocky outcrops, and valleys with cold-air pools or inversions, for example. A study [...]