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News from Latin America

Updates every hour. Last Updated: 15-Sep-2025 12:11 ET (15-Sep-2025 16:11 GMT/UTC)

Protein deficiency during pregnancy and lactation may compromise sperm viability in offspring

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

Research with rats has shown that a maternal diet lacking protein during these stages leads to changes in the structure and function of the epididymis, which would explain impairments in motility, viability, and sperm concentration in male offspring.

Journal: Biology Open
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

Deforestation accounts for 74% of rainfall reduction and 16% of temperature increase in the Amazon during the dry season, study says

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

For the first time, research led by scientists at the University of São Paulo quantifies the impact of forest loss and global climate change on the biome.

Journal: Nature Communications
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

For the first time since records began, Panama’s deep and cold ocean waters failed to emerge, possibly affecting fisheries and coral health

Smithsonian Tropical Research Institute
Peer-Reviewed Publication

The natural phenomenon of upwelling, which occurs annually in the Gulf of Panama, failed for the first time on record in 2025. A study led by scientists from the Smithsonian Tropical Research Institute (STRI) indicates that the weakening of the trade winds was the cause of this event. This finding highlights the climate’s impact on fundamental oceanic processes and the coastal communities that depend on them

Journal: Proceedings of the National Academy of Sciences

Study detects multidrug-resistant KPC-producing bacteria in Chilean wastewater for the first time

MELISA Institute
Peer-Reviewed Publication

Researchers identified three carbapenem-resistant Enterobacterales isolates: Klebsiella pasteurii M2/A/C/34, Klebsiella pneumoniae subsp. pneumoniae M3/A/M/3, and Citrobacter freundii sensu stricto M4/A/C/32, using a strategy that integrated environmental sampling, microbiological isolation, phenotypic characterization of resistance, and complete genomic analysis of the isolates.

Funder: FONDEF IDeA

Researchers use seaweed to manufacture raw materials for civil construction

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

The accumulation of these algae on beaches can harm health, tourism, fishing, and biodiversity. They are usually collected and disposed of in landfills, but a study by Brazilian researchers has found a use for the biomass: to produce lightweight ceramic clay aggregates.Large quantities of brown algae have been washing up on beaches in northern Brazil, the Caribbean, and the United States.

Journal: Journal of Materials in Civil Engineering
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

Study points out that a synthetic molecule helps reduce visceral fat and improve sleep

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

Early-stage clinical trial reveals that peptide has potential to become a new tool for improving metabolic health and sleep quality in overweight adults; study involved scientists from Brazil, Israel and the United States.

Journal: Diabetes/Metabolism Research and Reviews
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

New bacterium discovered in the Amazon is closely related to Andean species that causes human bartonellosis

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

This neglected disease, also known as Peruvian wart and Oroya fever, is caused by bacteria of the genus Bartonella and is transmitted by sand flies. DNA found in insects from a protected area in Brazil is similar to that of pathogenic species found in Peru. While there is still no evidence that the new bacterium causes disease, scientists warn that monitoring should continue.

Journal: Acta Tropica
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

Deadly bone disease wiped out long-necked dinosaurs in what is now the interior of the state of São Paulo, Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

Researchers found sauropod bones with signs of osteomyelitis, an infectious disease that can be caused by viruses, bacteria, fungi, or protozoa and that killed the animals quickly. The discovery suggests that favorable conditions for the disease existed in the region about 80 million years ago.

Journal: The Anatomical Record
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

For students with severe attention difficulties, changing school shifts is not the solution

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

Research involving more than 2,000 Brazilians reveals that while everyone’s performance is consistently lower in the morning, the afternoon shift only improves the performance of students with few or no symptoms of attention deficit hyperactivity disorder.

Journal: European Child & Adolescent Psychiatry
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

SARS-CoV-2 infects testicular cells and uses cellular machinery to replicate and form

Fundação de Amparo à Pesquisa do Estado de São Paulo
Peer-Reviewed Publication

Research conducted on mice revealed that the COVID-19 virus uses cells responsible for testosterone production to replicate, thereby interfering with lipid metabolism. This helps explain the drop in testosterone and possibly cholesterol in patients with s

Journal: Frontiers in Cellular and Infection Microbiology
Funder: Fundação de Amparo à Pesquisa do Estado de São Paulo

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