George had a spinal tap to test for biomarkers of Alzheimer's disease. What substances were George's doctors MOST likely looking for in George's cerebrospinal fluid?

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The biomarkers most commonly used to diagnose Alzheimer's disease are tau and amyloid protein. These are often found in abnormal levels in the cerebrospinal fluid of individuals with the disease. Acetylcholinesterase inhibitors and beta-secretase may also be involved in the disease, but are not usually tested for in a spinal tap.

George Had a Spinal Tap to Test for Biomarkers of Alzheimer's