Phytochemicals from Ruta graveolens Activate TAS2R Bitter Taste Receptors and TRP Channels Involved in Gustation and NociceptionReportar como inadecuado




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DeFENS—Department of Food, Environmental and Nutritional Sciences, University of Milan, via Celoria 2, Milano I-20133, Italy





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Academic Editor: Marcello Iriti

Abstract Ruta graveolens rue is a spontaneous plant in the Mediterranean area with a strong aroma and a very intense bitter taste, used in gastronomy and in folk medicine. From the leaves, stems and fruits of rue, we isolated rutin, rutamarin, three furanocoumarins, two quinolinic alkaloids, a dicoumarin and two long chain ketones. Bitter taste and chemesthetic properties have been evaluated by in vitro assays with twenty receptors of the TAS2R family and four TRP ion channels involved in gustation and nociception. Among the alkaloids, skimmianine was active as a specific agonist of T2R14, whereas kokusaginin did not activate any of the tested receptors. The furanocoumarins activates TAS2R10, 14, and 49 with different degrees of selectivity, as well as the TRPA1 somatosensory ion channel. Rutamarin is an agonist of TRPM5 and TRPV1 and a strong antagonist of TRPM8 ion channels. View Full-Text

Keywords: Ruta graveolens; bitter taste; TAS2Rs receptors; chemesthesis; TRP channels Ruta graveolens; bitter taste; TAS2Rs receptors; chemesthesis; TRP channels





Autor: Giuseppe Mancuso, Gigliola Borgonovo, Leonardo Scaglioni and Angela Bassoli *

Fuente: http://mdpi.com/



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