Brain HealthGreen Tea Compound EGCG Fights Parkinson's by Rewiring Brain Cell Metabolism
Researchers using a fruit fly model of Parkinson's disease discovered that brain glial cells switch from efficient energy production (oxidative phosphorylation) to an inefficient, inflammatory pathway called glycolysis, causing lactate to accumulate and triggering neuroinflammation. EGCG, the main bioactive compound in green tea, reversed this metabolic shift by dialing down key glycolytic enzymes, restoring normal energy metabolism, and suppressing glial-driven inflammation. Flies treated with EGCG showed better movement, improved climbing ability, and greater survival of the dopamine-producing neurons that Parkinson's disease destroys. The study provides a new mechanistic explanation for green tea's traditional use in brain health and positions glial metabolic reprogramming as a viable drug target for neurodegenerative disease.
