"Mini-Brain Reveals Time-Sensitive Connection: Concussion to Alzheimer's"

Researchers at Purdue University have developed a "traumatic brain injury (TBI) on a chip" to study the link between concussions and Alzheimer's disease. Using clusters of neurons from embryonic mice, the miniature brain was exposed to g-forces similar to those experienced by football players, resulting in an immediate increase in acrolein, a molecule associated with neurodegenerative diseases, and misfolding of amyloid-beta 42 (AB42), a protein linked to Alzheimer's. The device also allowed for testing potential treatments, such as hydralazine, which reduced acrolein and AB42 levels. The findings suggest that the damage associated with Alzheimer's disease can start within hours of a head injury, highlighting the need for prompt action.