Reducing Brain Barrier Protein Improves Memory
1US researchers identified a protein that weakens brain barriers and cognition.
2Reducing this protein in aged mice cut brain inflammation and improved memory.
3Exercise releases a liver enzyme that helps eliminate this harmful protein.
📖 Easy Explanation
🔍 Background
As we age, the 'blood-brain barrier,' a thin membrane protecting the brain, tends to loosen. Harmful substances entering through these gaps can cause inflammation and memory loss, like dementia. Recently, US researchers identified the main culprit damaging this barrier.
📌 Key Points
Experiments on mice showed that the accumulation of a protein called 'TNAP' in brain blood vessels weakens the brain barrier. Conversely, reducing this protein in the brains of older mice via genetic modification reduced inflammation and improved memory test scores. Notably, exercise was found to release a specific liver enzyme that clears away this harmful protein.
💡 Why It Matters
This scientifically proves once again why exercise is good for brain health and dementia prevention. Consistent exercise will greatly help maintain a strong brain barrier and prevent memory decline.
🔮 What's Next
Using this mechanism, it is expected that new treatments could be developed to prevent senile dementia and cognitive decline in the future.
📚 Glossary
혈뇌장벽 (Hyeolnoejangbyeok)A brain barrier that prevents harmful substances in the blood from entering the brain.
TNAPA protein that weakens the brain barrier and causes memory decline.
GPLD1A beneficial enzyme produced in the liver during exercise that eliminates harmful proteins.