Scientists reveal how exercise protects brain from Alzheimer’s: Study

Summary

Researchers at UC San Francisco discovered that exercise triggers the liver to release an enzyme that reduces brain inflammation by restoring the blood-brain barrier, potentially protecting against Alzheimer's disease.

Key Points
  • Exercise triggers the liver to release the enzyme GPLD1, which helps repair the blood-brain barrier.
  • GPLD1 removes TNAP, a protein that accumulates in the blood-brain barrier and causes leakiness and inflammation with age.
  • Reducing TNAP levels in older mice improved memory and reduced brain inflammation.
  • The findings open new therapeutic avenues for Alzheimer's by targeting the blood-brain barrier rather than the brain directly.
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