5 Key Takeaways

• 1

  Young blood infusions in mice reduce Alzheimer’s-like pathology and improve cognitive performance compared to older blood.

• 2

  Mice receiving aged blood exhibited increased amyloid-β deposition and impaired memory, highlighting systemic influences on neurodegeneration.

• 3

  Proteomic analysis identified 256 proteins with differential expression linked to synaptic signaling and neuronal regulation.

• 4

  The α2δ2 subunit of voltage-gated calcium channels was upregulated in mice infused with aged blood, suggesting synaptic dysfunction.

• 5

  The study opens avenues for exploring therapeutic targets related to the blood-brain axis in Alzheimer's disease.