Ok, so this new study on CoQ10 for Alzheimer's disease (AD) was only an animal study, but I share it with you to as a supplement that shows promise for humans.
This study involved a mouse model of AD, where treatment with coenzyme Q10 was found to decrease the area and number of plaque in the brain (hippocampus and in the overlying cortex). As a result of supplementation with CoQ10, levels of AD-related proteins (beta-carboxyterminal fragements, which is the precursor to amyloid-beta protein), were decreased. Functionally, during a water maze tests, the mice treated with CoQ10 showed cognitive improvement.
The authors conclude, "Our results show decreased pathology and improved behavior in...AD mice treated with the naturally-occurring antioxidant compound CoQ10. CoQ10 is well tolerated in humans and may be promising for therapeutic trials in AD."
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