Recent studies associate blood biomarkers with brain atrophy and cognitive decline in Alzheimer's disease, while new DNA aptamers, retinal imaging, and speech analysis advance neurodegeneration detection and monitoring.
New research reveals significant advances in blood-based biomarkers for Alzheimer's disease, including a pTau 217 assay showing 93% agreement with amyloid PET imaging and identification of interferon gamma as a diagnostic signal linked to genetic risk. These developments address challenges in early diagnosis and monitoring while requiring substantially less plasma than previous tests.
Recent research identifies novel genetic causes for rare movement and neurodegenerative disorders, including CD99L2 variants in spastic ataxia, PPP2R5C as an Alzheimer's biomarker, and toxic polyglycine proteins in GGC repeat expansion diseases.
