Olfactory and taste receptors are expressed primarily in the nasal olfactory epithelium and gustatory taste bud cells, where they transmit real-time sensory signals to the brain. However, they are also expressed in multiple extra-nasal and extra-oral tissues, being implicated in diverse biological processes including sperm chemotaxis, muscle regeneration, bronchoconstriction and bronchodilatation, inflammation, appetite regulation and energy metabolism. Elucidation of the physiological roles of these ectopic receptors is revealing potential therapeutic and diagnostic applications in conditions including wounds, hair loss, asthma, obesity and cancers. This Review outlines current understanding of the diverse functions of ectopic olfactory and taste receptors and assesses their potential to be therapeutically exploited.
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http://dx.doi.org/10.1038/s41573-018-0002-3 | DOI Listing |
Food Chem
January 2025
Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; School of Food Science and Engineering, Ningxia University, Yinchuan 750021, China. Electronic address:
This study investigates the flavor perception of strong-aroma Baijiu through physiological electrical signals, focusing on electroencephalography (EEG) and electromyography (EMG) during olfactory and gustatory evaluations. It examines how sensory qualities, especially mellowness, influence brain and muscle responses. Results showed significant differences in EEG δ and β wavebands, mainly in the frontal and temporal lobes, reflecting varying brain activities across Baijiu types.
View Article and Find Full Text PDFCurr Allergy Asthma Rep
January 2025
Smell and Taste Clinic, Department of Otorhinolaryngology, Technical University of Dresden, Dresden, Germany.
Purpose Of Review: Parosmia is a qualitative olfactory disorder in which there is a mismatch between the memory of an odor and the actual experience triggered by an odor. There has been a surge in parosmia-related publications since the COVID-19 pandemic. This review summarizes the latest clinical findings, theories on pathophysiology and potential treatment options.
View Article and Find Full Text PDFInt J Eat Disord
January 2025
Eating Disorders Clinical and Research Program, Massachusetts General Hospital, Boston, Massachusetts, USA.
Background: Individuals with avoidant/restrictive food intake disorder (ARFID) self-report heightened sensitivity to taste and smell, but neither phenomenon has been systematically explored in the laboratory. We hypothesized that, compared to healthy controls (HC, n = 34), children, adolescents, and adults with full/subthreshold ARFID (n = 100; ages 9 to 23 years) would self-report heightened response to taste/smell stimuli and exhibit stronger bitter taste perception and heightened smell perception in performance-based tasks, and these differences would be especially prominent in those with the ARFID-sensory sensitivity presentation.
Method: We measured self-reported sensitivity to taste/smell with the adolescent/adult sensory profile (AASP).
Int Forum Allergy Rhinol
January 2025
Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
In patients with severe olfactory and gustatory dysfunction, olfactory cleft opacification improves with expanded intranasal steroid treatment (EDS-FLU) relative to placebo. This is directly associated with objective and patient-reported taste/smell improvement.
View Article and Find Full Text PDFSupport Care Cancer
January 2025
Department of Medical Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek, 1066 CX, Amsterdam, the Netherlands.
Purpose: Adolescent and young adult (AYA) malignant brain tumour (BT) survivors are at risk of adverse health outcomes, which may impact their health-related quality of life (HRQoL). This study aimed to investigate the (1) prevalence of physical and psychological adverse health outcomes, (2) the HRQoL, and (3) the association of adverse health outcomes and HRQoL among long-term AYA-BT survivors. Adverse health outcomes and HRQoL were compared to other AYA cancer (AYAC) survivors.
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