Glutathione, Brain Metabolism and Inflammation in Alzheimer's Disease

This study investigates whether low levels of glutathione (a natural antioxidant in the brain) are linked to the inflammation and memory problems seen in Alzheimer's disease, using specialized brain scans and other tests. **You may be eligible if...** - You are between 55 and 85 years old - You have been experiencing gradual memory decline for more than 1 year, with a cognitive score in the mild-to-moderate range - A PET scan has confirmed amyloid plaques in your brain (a hallmark of Alzheimer's) - You have a study partner (e.g., a family member or close friend) who can participate **You may NOT be eligible if...** - You were hospitalized in the past 3 months - You use insulin or have untreated thyroid disease - You have significant kidney, liver, or blood problems - You have a history of stroke, brain tumor, or active psychiatric conditions Talk to your doctor to see if this trial is right for you.