The subsequent trade out happened last month by the same participants. (elementgroup.com)
The second study, published in PLOS ONE, involved the same participants. (sciencedaily.com)
Examining the brain scans in the context of other disease markers from spinal fluid analyses and neuropsychiatric tests on the same participants showed that the rise and spread of tau in the brain tracked more closely with declining mental function than did amyloid. (scientificamerican.com)