Cognitive assessments, brain scans and blood tests are often used to diagnose Alzheimer’s because no single test is definitive. One exam, a tau PET scan, relies on a radioactive tracer injected ...

PET scans can detect amyloid plaques and tau tangles in the brain, which are often early signs of Alzheimer’s disease. But they’re not enough on their own to make a diagnosis. Alzheimer’s ...

The study revealed that plasma eMTBR-tau243 explains about 56% of the variation seen in brain tau PET scans, performing better than other blood markers. It also strongly correlates with brain ...

and it is sensitive enough to replace invasive and expensive spinal taps or PET brain scans. The three biomarkers are: p-Tau 217 is a biomarker for Alzheimer-related processes. This p-Tau 217 test ...

At present, tau-PET scans can pick up the signal from neurofibrillary tangles only when a large number are present in the brain, at which point the degree of brain pathology has become pronounced ...

Therefore, cognitively unimpaired participants with abnormal amyloid and tau PET scans need effective interventions in order to prevent future cognitive decline. Also, our findings provide support ...

A new study showed that positron emission tomography (PET) with the radiotracer (18F)-Flortaucipir (FTP) to detect hyperphosphorylated Tau (p-tau) may not be appropriate for diagnosing chronic ...