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Hyperosmia is an increased olfactory acuity (heightened sense of smell), usually caused by a lower threshold for odor. [1] This perceptual disorder arises when there is an abnormally increased signal at any point between the olfactory receptors and the olfactory cortex.
This seems intuitive, as polymorphisms in a specific bitter receptor gene are unlikely to account for heightened responses across multiple taste qualities, oral somatosensation, and retronasal olfaction. [20] [21] In addition, environmental causes may play a role in sensitive taste.
Dysgeusia, also known as parageusia, is a distortion of the sense of taste. Dysgeusia is also often associated with ageusia, which is the complete lack of taste, and hypogeusia, which is a decrease in taste sensitivity. [1] An alteration in taste or smell may be a secondary process in various disease states, or it may be the primary symptom.
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A supertaster is a person whose sense of taste is significantly more sensitive than most. The cause of this heightened response is likely, at least in part, due to an increased number of fungiform papillae. [117] Studies have shown that supertasters require less fat and sugar in their food to get the same satisfying effects.
Hypergeusia is a taste disorder where the sense is abnormally heightened. [1] [2] It can be associated with a lesion of the posterior fossa and Addison's disease; where a patient will crave for salty and sour taste due to the abnormal loss of ions with urine. [3]
My friend Justin lost his senses of smell and taste last Thursday. "I was drinking coffee, maybe my third cup, and it stopped tasting like anything," he told me. "Then I started to feel a bit achy ...
8590 18317 Ensembl ENSG00000184933 ENSMUSG00000070417 UniProt O95222 n/a RefSeq (mRNA) NM_003696 NM_010983 RefSeq (protein) NP_003687 n/a Location (UCSC) Chr 11: 6.79 – 6.8 Mb Chr 7: 106.59 – 106.61 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Olfactory receptor 6A2 is a protein that in humans is encoded by the OR6A2 gene. It is Class II (tetrapod -specific) olfactory receptor ...