Ageusia

Ageusia is the loss of taste functions of the tongue, particularly the inability to detect sweetness, sourness, bitterness, saltiness, and umami . It is sometimes confused for anosmia - a loss of the sense of smell. Because the tongue can only indicate texture and differentiate between sweet, sour, bitter, salty, and umami most of what is perceived as the sense of taste is actually derived from smell. True aguesia is relatively rare compared to the milder forms of taste loss: hypogeusia and dysgeusia. Hypogeusia represents a partial loss of taste whereas dysgeusia denotes a distortion or alteration of taste. (From the Wikpedia article Ageusia.)

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Recent Publications on Ageusia:
Sour ageusia in two individuals implicates ion channels of the ASIC and PKD families in human sour taste perception at the anterior tongue. BACKGROUND: The perception of sour taste in humans is incompletely...	9th October, 2009	Monell Chemical Senses Center, Philadelphia, Pennsylvania, United States	PLoS One. 2009 Oct 8;4(10):e7347. DOI Direct Link
Nonsynonymous single nucleotide polymorphisms in human tas1r1, tas1r3, and mGluR1 and individual taste sensitivity to glutamate. Several studies indicate an essential role of the heterodimer...	30th September, 2009	NBS-NOPA, Institut National de la Recherche Agronomique, Jouy-en-Josas,	Am J Clin Nutr. 2009 Sep;90(3):789S-799S. Epub 2009 Jul 1. DOI Direct Link
Gustatory alteration evaluation in patients with chronic otitis media. Many studies have shown the consequent gustatory alteration caused by ear...	29th September, 2009	Federal University of Rio de Janeiro - Hospital Universitario Clementino	Braz J Otorhinolaryngol. 2009 Jul-Aug;75(4):550-5.
Bilateral limbic system destruction in man. We report here a case study of a rare neurological patient with bilateral...	19th September, 2009	Department of Neurology, Division of Cognitive Neuroscience, University of	J Clin Exp Neuropsychol. 2009 Sep 17:1-19. DOI Direct Link
Reversible ageusia as an adverse effect of hydroxychloroquine treatment. OBJECTIVE: To elaborate normative values for a clinical psychophysical...	6th August, 2009		J Eur Acad Dermatol Venereol. 2009 May;23(5):604-5. Epub 2008 Aug 21. DOI Direct Link
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Ageusia Patents:
US Patent No.	Title
6472512	Keratinocyte derived interferon
6926898	Albumin fusion proteins
6936688	Human chemokine beta-10 mutant polypeptides
6936691	Secreted protein HCE3C63
6946134	Albumin fusion proteins
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BioPortfolio Ltd. offers e-mail and postal lists for Ageusia scientists - we have details of around 21 individuals working on Ageusia .