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Indigenous lands in the Brazilian Amazon are under constant pressure, and deforestation of these areas has accelerated in recent years. Some of them, such as Apyterewa Indigenous Territory in Pará state, are particularly affected, endangering Brazil’s ability to meet the targets to which it is committed internationally in terms of combating deforestation and mitigating the impact of climate change. To protect the areas of the Amazon that are still intact, effective action must be [...]

Brazilian researchers have analyzed the mechanisms by which estuarine plants absorb iron, and used their findings to recommend a promising phytoremediation technique for the rehabilitation of water and soil contaminated by environmental disasters such as the 2015 collapse of the Fundão iron mine tailings dam in Mariana, Minas Gerais state (Southeast Brazil). An article on the study is published in the Journal of Hazardous Materials.  The researchers conclude [...]

Focal cortical dysplasia is a malformation of the cerebral cortex associated with one of the most severe types of epilepsy. Treatment is difficult owing to a lack of effective drugs or access to surgery. A new human model developed by researchers at the University of Campinas (UNICAMP) in the state of São Paulo, Brazil, using organoids cultured from patients’ cells has now opened up opportunities to test more specific therapies and medications. Focal cortical dysplasia is a [...]

A study conducted at São Paulo State University (UNESP) in Brazil shows that even mild to moderate infection by SARS-CoV-2 can cause an imbalance in the cardiovascular system of young adults without pre-existing diseases. The researchers also concluded that both obesity and a low level of physical activity are key factors in post-COVID that help alter the autonomic nervous system, which regulates such vital functions as blood pressure, heart rate and breathing. A study conducted at [...]

Several natural disasters have afflicted various parts of Brazil since 2022 began, from deadly flooding and mudslides due to abnormally heavy rain in the states of Minas Gerais, Bahia, Rio de Janeiro and São Paulo, to severe drought in Rio Grande do Sul state. However, only 6.1% of its 5,568 municipalities have plans of any kind to mitigate the risk and impact of such disasters, according to a survey by IBGE, the national census and statistics bureau. An article published in the [...]

Brazilian researchers have developed a computer program that locates swimming pools and rooftop water tanks in aerial photographs with the aid of artificial intelligence to help identify areas vulnerable to infestation by Aedes aegyptithe mosquito that transmits dengue, zika, chikungunya and yellow fever. The innovation, which can also be used as a public policy tool for dynamic socio-economic mapping of urban areas, resulted from research and development work by professionals at the [...]

Deforestation for agribusiness expansion in Brazil, in conjunction with climate change, has worsened the already severe drought suffered in the last decade by the transition zone between the eastern Amazon and the Cerrado, the vast tropical savanna ecoregion in central and western Brazil.   This combination of trends endangers the stability of the biomes concerned and constitutes a risk to food production in the region known as MaToPiBa, a portmanteau of Maranhão, Tocantins, [...]

Vaccination has changed the profile of hospitalized COVID-19 patients and people who die from the disease in Brazil. A study conducted in São José do Rio Preto, in the state of São Paulo, Brazil, reports on the start of this process. Researchers affiliated with the Virology Laboratory at São José do Rio Preto Medical School (FAMERP) retrospectively analyzed data for 2,777 patients treated between January 5 and September 12, 2021, at the region’s base [...]