Researchers found that bits of tau from the protein’s microtubule-binding region can be detected in the cerebrospinal fluid. These, not phospho-tau or total tau, reflect neurofibrillary tangles in the Alzheimer’s brain.
Topline results suggested that the anti-inflammatory treatment stabilized cognition and function over six months. The trial did not include biomarkers.
In cultured cells, lysosomal activity was necessary to enable tau seeds to break out of internalized exosomes and trigger the aggregation of tau in the cytosol.
Despite plaques and tangles in the brain, this group, on average, maintains their cognitive skills over two to four years, suggesting the presence of resilience factors.
Among 14 familial Alzheimer’s APP mutations, two don’t change the Aβ42/Aβ40 ratio, but all of them yield long peptides of 45 to 49 residues that hide out in the membrane.
Merged Consortia Forge Path to Trials in Frontotemporal Dementia FTD Fluid Markers for Degeneration: Check. For Pathology: Not Yet. Imaging Exposes Hugely Heterogeneous Brain Changes Among FTDs Moving Target: Can Standardized Tests Track Symptoms of FTD?
Grappling with a rare disease whose variability is daunting, international cohort studies are charting the natural history of FTD. They have discovered biomarkers and honed physiological tests that underlie its behavioral symptoms.
The global platform trial for Alzheimer’s due to mutations in APP or presenilin will try to treat or prevent symptoms by deploying a therapeutic antibody that homes in on a piece of tau known to aggregate into neurofibrillary tangles.
International cohort studies reveal that the brain starts to shrink, and neural connections to crumble, many years before FTD symptoms arise. Where and when those changes occur depends on the offending mutation.
People with FTD wrestle with behavioral, cognitive, language, and motor impairments. Scientists are designing standardized tests that capture such symptoms.
Donanemab Confirms: Clearing Plaques Slows Decline—By a Bit Astroglial Markers Poised for Stardom? Shuttle Unloads More Gantenerumab Into the Brain N-Terminal Tau Antibodies Fade, Mid-Domain Ones Push to the Fore Where to Now, Phospho-Tau? Clinicians from