Following injury or damage, insulin plays a key role in the maturation and regeneration of immature olfactory sensory neurons.
People with a poor sense of smell are 50% more likely to be hospitalized for pneumonia than those with a good sense of smell.
Olfactory imprinting in infant mice has a direct impact on their social behaviors as adults.
Researchers discovered unique connectivity between the hippocampus and olfactory areas in the brain, a finding which explains why specific odors can trigger powerful memories. The study also reports a loss of sense of smell is associated with depression and a poorer quality of life.
Regions of the olfactory system in mice with higher amyloid beta expression exhibited lower activation of olfactory sensory neurons and decreased odor detection.
51% of COVID-19 patients report they experienced the loss of smell and taste up to five months after infection. On average, once their senses were restored, people reported a loss in sensitivity to smell and taste.
Trained scent detection dogs are able to detect organic compounds associated with COVID-19 in patients. Researchers report the dogs are better at detecting coronavirus infection than standard tests.