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Selon une étude publiée mercredi, 66 % des habitants de Manaus, dans le nord du Brésil, posséderaient des anticorps contre le coronavirus, permettant de contrôler la circulation virale.   Les habitants de la ville brésilienne de Manaus, fortement infectés par le coronavirus, bénéficieraient désormais d’un niveau d’immunité collective permettant de contrôler la circulation virale, selon une [...]

To understand how climate change may affect different ecosystems, 27 researchers from Brazil, Argentina, Colombia, Costa Rica, French Guiana and Puerto Rico, among other countries, conducted experiments in seven different locations involving the aquatic environment in the tank (centrally-located water-holding cup) of bromeliads, a habitat for insect larvae and other small organisms. They discovered that, in contrast with what might be thought, the smallest organisms at the bottom of the food [...]

Les habitants de la ville brésilienne de Manaus, fortement infectés par le coronavirus, bénéficieraient désormais d’un niveau d’immunité collective permettant de contrôler la circulation virale, selon une étude préliminaire publiée mercredi sur le site medRxiv. Quelque 66 % des habitants posséderaient des anticorps contre le coronavirus, un taux suffisamment élevé pour que la maladie ne puisse [...]

The Brazilian city of Manaus, which was devastated by the coronavirus pandemic, may have suffered so many infections that its population now benefits from "herd immunity," according to a preliminary study. Published on the website medRxiv, the study analyzed infection data with mathematical modeling to estimate that 66 percent of the population had antibodies to the new coronavirus in Manaus, where the pandemic's passage was as fast as it was brutal. The Brazilian city of [...]

Un estudio preliminar estima que la ciudad brasileña de Manaos podría haber alcanzado una "inmunidad de rebaño" ante la covid-19 por el alto número de casos de la enfermedad registrados Manaos, capital del estado brasileño de Amazonas, pudo haber alcanzado una "inmunidad de rebaño" debido al alto número de contaminaciones que la convirtieron en una de las más golpeadas por la pandemia de coronavirus, indica un estudio [...]

Arthritis affects almost 2% of the world’s population, or some 150 million people, and currently, there is no completely effective treatment for this chronic disease. A new molecule developed in the laboratory has been shown to have potential therapeutic effects. Tested in mice with genetically induced arthritis, it suppressed the inflammatory process, reducing both inflammation and joint tissue wear and tear. Arthritic mice treated with the substance displayed less pain and swelling and [...]

Oxytocin, produced by the hypothalamus and sometimes known as the “love hormone” for its involvement in pair bonding and orgasm, can be a strong ally in the control and prevention of osteoporosis, according to a study by scientists at São Paulo State University (UNESP) in Brazil. The study showed that when administered to female rats at the end of their fertile period, the hormone reversed precursors of osteoporosis, such as reduced bone density, decreased bone strength and [...]

Developed by Biologix, a startup headquartered in São Paulo, Brazil, researchers have developed a sleep apnea home diagnostic and monitoring system based on Internet of Things technology that can be used for the remote monitoring of individuals with suspected COVID-19 infection or mild symptoms of the disease. The system can also be used to recommend transfer to a hospital if the patient’s clinical signs worsen. Two private hospitals in São Paulo, the epicenter of the [...]

Immune system cells in the blood of breast cancer patients undergo alterations early in the disease course, according to a study published in the journal Clinical & Translational Immunology. The authors believe that this discovery may contribute to the early identification of aggressive tumors and help enhance personalized immunotherapy strategies in the future. The study was conducted while Rodrigo Nalio Ramos, who was doing a doctoral research internship at Claude Bernard University in [...]