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IMAGE: The hormone acts as a barrier against SARS-CoV-2, blocking the expression of genes that encode proteins in cells serving as viral entry points, according to a study by researchers at. view more
Credit: NIAD/NIH
By Elton Alisson | Agência FAPESP - Melatonin synthesized in the lungs acts as a barrier against SARS-CoV-2, preventing expression of genes that encode proteins in cells such as resident macrophages in the nose and pulmonary alveoli, and epithelial cells lining the alveoli, all of which are entry points for the virus. The hormone, therefore, prevents infection of these cells by the virus and inhibits the immune response so that the virus remains in the respiratory tract for a few days, eventually leaving to find another host.
by Elton Alisson (Agência FAPESP) Biofuels play a fundamental role in decarbonizing the transportation sector. Current policies to grow biofuel production and use on a global scale, however, are not sufficiently ambitious, according to the International Energy Agency (IEA).
To address this problem, the IEA will assess the effectiveness of the policies implemented by leading producers of low-carbon fuels for transportation such as Brazil in order to help them identify bottlenecks, recommend solutions, and share best practices so as to move the bioenergy agenda forward.
The initiative was presented by IEA representatives during the Fourth Brazilian Bioenergy Science and Technology Conference (BBEST), held online between November 30 and December 2.