Loss of smell may be an early sign of Alzheimer's disease
Loss of smell may be an early sign of Alzheimer's disease
Recent research suggests that a subtle loss of smell might be an early warning sign of Alzheimer's disease.
conceptAlzheimer's disease
Scientists believe this happens because toxic proteins like amyloid-beta accumulate in the olfactory bulb and entorhinal cortex, areas of the brain critical for both smell and memory, long before they affect other regions.
conceptamyloid-beta
otherolfactory bulb
otherentorhinal cortex
While conditions like aging, viral infections, or Parkinson’s disease can also cause smell loss, clinical tools like the University of Pennsylvania Smell Identification Test (UPSIT) are becoming valuable for risk screening.
conceptParkinson's disease
orgUniversity of Pennsylvania Smell Identification Test
techUPSIT
