Systemic and Central Inflammation in AD

This study is investigating the role of inflammation — both in the body and in the brain — in Alzheimer's disease. Researchers will measure inflammatory markers in people with Alzheimer's to better understand how inflammation contributes to cognitive decline. **You may be eligible if...** - You are between 50 and 86 years old - You have been diagnosed with probable Alzheimer's disease - You have mild-to-moderate memory impairment (MMSE score 12–26) - You speak English and have at least 8 years of formal education - Your blood counts and organ function (liver, kidneys) are in acceptable range **You may NOT be eligible if...** - You have a serious active infection, severe heart or lung problems - You have a different type of dementia (e.g., Lewy body, frontotemporal) - You have had a stroke, brain tumor, or bleeding in the brain - You are allergic to IL-2 (the treatment used in this study) - You have active hepatitis B or C - You have been in another clinical trial in the past 30 days Talk to your doctor to see if this trial is right for you.