Date Time Possible new PET tracer for early detection of Alzheimer’s New biomarkers for Alzheimer’s disease are a priority area for researchers seeking to learn more about the disease and find possible methods of early diagnosis. Researchers at Karolinska Institutet have now studied a new PET tracer that is an important diagnostic tool for the disease. The study on the tracer substance BU99008, which is published in Molecular Psychiatry, can play a key part in the early identification of signs of Alzheimer’s disease. The binding of the PET-tracer BU99008 shows reactive astrogliosis in different parts of the brain of a deceased patient with Alzheimer’s disease. The colours show the extent of the binding, where green is low, yellow is medium, and red is high binding. Credit: Amit Kumar.