Olfactory function is preserved in about a quarter of patients with Parkinson’s disease (PD), and may be predictive of disease course, say researchers. Olfactory testing has been used as a screening ...

Patients with chronic rhinosinusitis (CRS) with nasal polyps exhibited significant improvement in olfactory function when treated with a combination of oral and nasal steroids vs nasal steroids alone.

A review of more than 200 studies reveals that olfactory receptors--proteins that bind to odors that aid the sense of smell--perform a wide range of mostly unknown functions outside the nose. The ...

Numerous studies to date have shown that olfactory receptors are relevant not only for smell perception, but that they also play a significant physiological and pathophysiological role in all organs.

Researchers have identified the function of olfactory receptors in the human heart muscle, such as are also present in the nose. One of the receptors reacts to fatty acids that occur in the blood, in ...

Domesticated silkmoths Bombyx mori have a much more limited perception of environmental odors compared to their wild relatives. A new study on silkmoths revealed that the insects' ability to perceive ...

Bill-wiping, or the scraping by a bird of its bill along a substrate, has been observed in social contexts and cited as an irrelevant displacement activity. However, several behaviors once categorized ...