El declive de una proteína cerebral vinculado al envejecimiento en un estudio con ratones

24 de mayo de 2026

Reportado por IA

Un estudio de 2023 descubrió que la caída en los niveles de la proteína menina en el hipotálamo provoca múltiples signos de envejecimiento en ratones. Restaurar esta proteína o suplementar con el aminoácido D-serina mejoró la memoria y otros indicadores.

Investigadores de la Universidad de Xiamen en China demostraron que los niveles de menina disminuyen drásticamente en una parte específica del hipotálamo a medida que los ratones envejecen. Cuando redujeron la menina en animales más jóvenes, los ratones desarrollaron inflamación cerebral, huesos más débiles, piel más fina, peor equilibrio, pérdida de memoria y una esperanza de vida más corta.

UCSF study links iron-associated protein FTL1 to age-related memory decline in mice

5 de abril de 2026 Reportado por IA Imagen generada por IA Verificado por hechos

Researchers at the University of California, San Francisco report that higher levels of the iron-associated protein FTL1 in the hippocampus of older mice are tied to weaker neural connections and worse performance on cognitive tests. In the experiments, reducing FTL1 in older mice was associated with increased neuronal connectivity and improved memory performance, findings published in Nature Aging.

Scientists call for multi-pronged strategies against Alzheimer's

A team of researchers led by Professor Yan-Jiang Wang has published a review arguing that Alzheimer's disease requires integrated treatments targeting multiple factors, not single causes. New drugs like lecanemab and donanemab offer modest benefits by slowing decline, but fall short of reversal. The paper, in Science China Life Sciences, emphasizes genetics, aging, and systemic health alongside amyloid-beta and tau proteins.

Scientists restore memory in Alzheimer's mice by blocking PTP1B

30 de abril de 2026 Reportado por IA

Researchers at Cold Spring Harbor Laboratory have found that blocking the protein PTP1B improves memory and boosts plaque clearance in mouse models of Alzheimer's disease. The discovery links the protein to brain immune function and metabolic risks like diabetes and obesity. The team aims to develop inhibitors for potential human treatments.

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Strategies to Reduce Peripheral Inflammation and Alzheimer's Risk

6 de marzo de 2026 Reportado por IA

Building on genomic research linking Alzheimer's origins to inflammation in peripheral tissues like the gut, lungs, or skin, practical lifestyle measures can help curb chronic inflammation. These include vaccination, oral hygiene, diet, exercise, weight control, and stress management, offering benefits for overall health amid evolving science.

17 de mayo de 2026 10:10

El declive de una proteína cerebral vinculado al envejecimiento en un estudio con ratones

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