Amazon Research Foundation

High Doses of N ‐Acetyl‐ P ‐Aminophenol Cause Acute Changes in Electroencephalographic and Electrocardiographic Activities in Wistar Rats

ABSTRACT N ‐acetyl‐ p ‐aminophenol (APAP), or acetaminophen, is the most prescribed analgesic and antipyretic, even used in association with other drugs. Because it is easily bought in drugstores, much evidence about its toxic effects is known due to high doses or continuous use,...

From local hubs to regional impact: harnessing the social and solidarity economy in small-scale fisheries

Abstract The global 2030 Agenda for Sustainable Development calls for more equitable and sustainable pathways by integrating traditional communities into development efforts. Despite these ambitions, challenges persist, as many initiatives, including Social and Solidarity Economy...

Factors associated with tuberculosis-attributed mortality in the Brazilian Amazon: a population-based retrospective cohort study with survival and competing-risk analyses

Abstract Background Tuberculosis mortality remains a major public health challenge in the Brazilian Amazon, where clinical vulnerability, social inequities, and heterogeneous access to healthcare may contribute to poor outcomes. This study aimed to identify factors associated wit...

Rapid increase of climate extremes reveals new areas of concern in Amazonia

Abstract Amazonia is highly sensitive to climate extremes, yet we lack an Amazon-wide assessment that examines the spatial-temporal changes in these extreme conditions. We address this within seasons and across the hydrological year, using a quantiles approach that integrates the...

Variation in apparent wood density of Tachigali vulgaris as affected by tree diameter, height, forking, and soil conditions in Amazonian plantations

Abstract Tachigali vulgaris has potential for energy purposes in the Amazon, but the relationship between several silvicultural factors and wood quality requires further investigation. This study evaluated the variation in the apparent density of T. vulgaris wood in two pure plan...

Persistent Redox Imbalance in Post-COVID-19 Syndrome: Lipid Peroxidation, Antioxidant Enzyme Depletion, and Reduced Nitric Oxide Availability in an Amazonian Population

Post-COVID-19 syndrome (PCS) can persist even after mild acute illness, and oxidative stress has been proposed as a central mechanism for this persistence, although it remains poorly studied in the Amazon. This study characterized redox imbalance in patients with PCS through a co...