A Key Protein Behind Brain Aging

ENG: Researchers at UC San Francisco identified FTL1, or ferritin light chain 1, a protein involved in cellular iron storage and regulation, as a possible key driver of brain aging. The study focused on the hippocampus, a brain region essential for learning and memory. In older mice, neuronal FTL1 levels in the hippocampus were higher, and this increase was linked to fewer neural connections and poorer cognitive performance.

Credit: Pexels

When the researchers artificially increased FTL1 in young mice, their brains began to show aging-like features. When they lowered FTL1 in the hippocampus of aged mice, neural connectivity improved and memory performance recovered. The study also found that FTL1 affects cellular metabolism, suggesting that its role in brain aging involves both neuronal structure and energy use. The work shows that FTL1 may be an important biological target for future strategies aimed at slowing or reversing age related cognitive decline.

RO: Cercetătorii de la UC San Francisco au identificat FTL1, adică ferritin light chain 1, o proteină asociată cu stocarea și reglarea fierului în celule, ca un posibil factor important în îmbătrânirea creierului. În acest studiu, atenția s-a concentrat pe hipocamp, regiunea implicată în memorie și învățare. La șoarecii vârstnici, nivelul de FTL1 din neuronii hipocampului era mai mare, iar această creștere s-a asociat cu mai puține conexiuni între neuroni și cu performanțe mai slabe la testele cognitive.

Când cercetătorii au crescut artificial nivelul de FTL1 la șoareci tineri, creierul lor a început să prezinte trăsături asemănătoare îmbătrânirii. În schimb, când au redus FTL1 în hipocampul șoarecilor bătrâni, au observat o refacere a conexiunilor neuronale și o îmbunătățire a memoriei. Studiul a arătat și că această proteină influențează metabolismul celular, ceea ce sugerează că efectele ei nu țin doar de structură, ci și de felul în care neuronii produc și folosesc energia. Aceste rezultate arată că FTL1 ar putea deveni, pe viitor, o țintă importantă pentru tratamente menite să încetinească sau chiar să inverseze anumite efecte ale îmbătrânirii creierului.

Source (ScienceDaily, “Scientists found a protein that drives brain aging — and how to stop it”, 05.04.2026)

Paper: Remesal, L., Sucharov-Costa, J., Wu, Y., Pratt, K.J., Bieri, G., Philp, A., Phan, M., Aghayev, T., White III, C.W., Wheatley, E.G. and Zou, B., 2025. Targeting iron-associated protein Ftl1 in the brain of old mice improves age-related cognitive impairment. Nature Aging5(10), pp.1957-1969.

Stabilizing Thyme Extract with Microscopic Capsules

ENG: Scientists have developed a way to turn thyme extract into tiny, consistent doses that are easier to store and safer to use. Thyme contains compounds such as thymol, carvacrol, rosmarinic acid, and caffeic acid, which are linked to antimicrobial, anti-inflammatory, and antioxidant effects. However, the extract can evaporate quickly and, in larger amounts, may irritate the skin or digestive system, so controlling the dose is important.

Credit: Madeleine_Steinbach/Getty Images
Read More

A Paper-Thin Brain Implant That Brings the Brain and Computers Closer Than Ever

ENG: Researchers from Columbia University, NewYork-Presbyterian Hospital, Stanford University, and the University of Pennsylvania have unveiled a new brain–computer interface platform known as the Biological Interface System to Cortex (BISC). The work brings together advances in semiconductor engineering, neuroscience, and clinical neurosurgery to address long-standing limitations of implantable brain interfaces. The team set out to replace bulky, invasive implants with a system that is dramatically smaller, safer to implant, and capable of handling the massive data volumes required for modern AI-based neural decoding.

Read More

How a Tiny Eye Chip Helps Patients See Again

ENG: The PRIMA system developed at Stanford Medicine offers an innovative way to restore central vision in people with advanced macular degeneration. The technology uses a tiny wireless chip implanted under the retina together with smart glasses that transmit visual information through infrared light. The implant replaces the lost photoreceptors and sends electrical signals to the remaining functional retinal neurons, allowing patients to perceive shapes, letters and high-contrast patterns again. In the clinical study, most participants regained the ability to read and recognize signs after several months of training.

Credit: Palanker Lab/Stanford Medicine
Read More