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Bioactive Nanoparticles Restore Brain Barrier, Cut Amyloid in Alzheimer’s Mice

The preclinical study targets vascular clearance rather than plaques to reset the brain’s waste‑removal system.

Overview

  • In mouse models, three injections reduced brain amyloid‑β by roughly 50–60% within one hour, according to the study team.
  • The nanoparticles act as supramolecular drugs that engage the LRP1 receptor to reactivate transcytosis and route toxic proteins from brain to bloodstream.
  • Treated animals showed improved cognition and behavior with benefits persisting for up to six months in tests of memory and daily activities.
  • Researchers report the approach also repaired blood‑brain barrier structure and function, adding transport capacity and restoring vascular health.
  • The work, led by teams at UCL, IBEC and West China Hospital, was published in Signal Transduction and Targeted Therapy, and requires replication and safety studies before any human trials.