Potential application of electronic odor diffuser in olfaction testing.

Objective: Different olfactory tests have been performed by otorhinolaryngologists in different parts of the world. For example, the University of Pennsylvania Smell Identification Test (UPSIT) has been used in the U.S.

Enhancement of olfaction by femtomolar concentrations of zinc ions.

Zinc is recognized as an important element for olfaction. Zinc nanoparticles enhance olfaction in response to odors; however, the mechanisms underlying this action remain unknown. Herein, the effect of zinc on olfactory receptors was deduced using electro-olfactogram (EOG) responses recorded from the isolated olfactory mucosae of bullfrogs (Rana catesbeiana) following the administration or chelation of zinc ions.

Thermography for the Diagnosis of Acute Inflammation in the Paranasal Sinus.

 Although computed tomography scanning is the most common method for the diagnosis of sinusitis today, X-ray imaging is still used in outpatient clinics. Because X-ray imaging is beneficial for patients with severe sinusitis but not for those with mild sinusitis, an alternative method to visualize sinusitis without X-ray imaging is desirable.  To study the possibility of using thermography to visualize sinusitis.

Intrinsic chemosensory signal recorded from the human nasal mucosa in patients with smell loss.

Physiological investigation of olfactory receptor function in hyposmic or anosmic patients is rare. Pioneers examined the electro-olfactogram in patients with olfactory disturbance. Although the electro-olfactogram is an established method to record olfactory responses from human olfactory epithelium, the response is only measured at specific sites of the olfactory mucosa.

Topographical differences in the sensitivity of the human nasal mucosa to olfactory and trigeminal stimuli.

The olfactory and trigeminal systems play a role in the sensation of odors. The intrinsic optical signal (IOS) imaging method allows visualization of the neuronal activity. The IOS was measured after the nasal epithelium had been exposed to olfactory (H(2)S) and trigeminal (CO(2)) stimuli.