Scientists at Stanford University have discovered a possible hidden cause behind brain aging and memory decline. Using the short-lived turquoise killifish as a model, researchers found that ribosomes — the tiny cellular machines responsible for building proteins — begin to stall and collide as organisms age. These “protein traffic jams” disrupt the normal production of proteins, leading to faulty protein buildup and harmful clumps often linked to neurodegenerative diseases such as Alzheimer’s. The findings offer fresh insight into how aging affects brain cells and could help researchers develop future treatments aimed at slowing memory loss and age-related brain disorders.
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