Mild cognitive impairment or Alzheimer disease can be prevented or delayed by detecting markers in their very early stage. The scientists from the USA suggest that olfactory impairment can be a relevant clinical marker that can point towards the onset of dementia and can help in identification of persons with increased risk. The studies have shown in that past that up to 20% population over 65 years faces some sort of mild cognitive impairment (MCI). The studies have also pointed that about 60-80% of these cases are due to the onset of Alzheimer disease (AD).
Alzheimer disease shows dementia as a primary symptom. Previous neurological studies have shown that AD symptoms in the entorhinal cortex and other temporal regions may limit the ability to retrieve and store memories of smell and hence the increased rate of error in odour recognition. Some studies have also indicated the link…
