Protein Information

Name vanilloid receptor 1
Synonyms Capsaicin receptor; OTRPC 1; Osm 9 like TRP channel 1; TRP vanilloid 1; TRPV 1; TRPV1; Transient receptor potential cation channel subfamily V member 1…

Compound Information

Name eugenol
CAS 2-methoxy-4-(2-propen-1-yl)phenol

Reference List

PubMed Abstract RScore(About this table)
17720863 Li HY, Park CK, Jung SJ, Choi SY, Lee SJ, Park K, Kim JS, Oh SB: Eugenol inhibits K+ currents in trigeminal ganglion neurons. . J Dent Res. 2007 Sep;86(9):898-902.

Eugenol inhibits voltage-activated Na (+) and Ca (2+) channels in a transient receptor potential vanilloid 1 (TRPV1)-independent manner.
163(2,2,2,3) Details
19376653 Park CK, Kim K, Jung SJ, Kim MJ, Ahn DK, Hong SD, Kim JS, Oh SB: Molecular mechanism for local anesthetic action of eugenol in the rat trigeminal system. Pain. 2009 Jul;144(1-2):84-94. Epub 2009 Apr 18.

At cellular level, eugenol reversibly inhibited APs and VGSCs in IB (4)+/TRPV1+/Na (v) 1.8+ nociceptive TG neurons (Type I-Type III) and IB (4)-/TRPV1-/Na (v) 1.8- nociceptive TG neurons (Type IV).
113(1,2,2,3) Details
14514756 Yang BH, Piao ZG, Kim YB, Lee CH, Lee JK, Park K, Kim JS, Oh SB: Activation of vanilloid receptor 1 (VR1) by eugenol. . J Dent Res. 2003 Oct;82(10):781-5.
112(1,2,2,2) Details
19967073 Li HY, Lee BK, Kim JS, Jung SJ, Oh SB: Eugenol Inhibits ATP-induced P2X Currents in Trigeminal Ganglion Neurons. . Korean J Physiol Pharmacol. 2008 Dec;12(6):315-21. Epub 2008 Dec 31.

We suggest, therefore, that eugenol inhibits P2X (3) currents in a TRPV1-independent manner, which contributes to its analgesic effect.
81(1,1,1,1) Details
20152883 Moreira-Lobo DC, Linhares-Siqueira ED, Cruz GM, Cruz JS, Carvalho-de-Souza JL, Lahlou S, Coelho-de-Souza AN, Barbosa R, Magalhaes PJ, Leal-Cardoso JH: Eugenol modifies the excitability of rat sciatic nerve and superior cervical ganglion neurons. Neurosci Lett. 2010 Mar 26;472(3):220-4. Epub 2010 Feb 10.

Eugenol possesses analgesic effects that may be related to the inhibition of voltage-dependent Na+ channels and/or to the activation of TRPV1 receptors or both.
81(1,1,1,1) Details
9372790 Ohkubo T, Kitamura K: Eugenol activates Ca (2+)-permeable currents in rat dorsal root ganglion cells. J Dent Res. 1997 Nov;76(11):1737-44.

Our results suggest that eugenol activates a Ca (2+)-permeable ion channel in rat DRG neurons through two different mechanisms: a capsaicin receptor-mediated pathway and a pathway independent of the capsaicin-receptor.
81(1,1,1,1) Details
16998128 Park CK, Li HY, Yeon KY, Jung SJ, Choi SY, Lee SJ, Lee S, Park K, Kim JS, Oh SB: Eugenol inhibits sodium currents in dental afferent neurons. . J Dent Res. 2006 Oct;85(10):900-4.

Our results demonstrated that eugenol inhibits I (Na) in a TRPV1-independent manner.
81(1,1,1,1) Details
9126180 Ohkubo T, Shibata M: The selective capsaicin antagonist capsazepine abolishes the antinociceptive action of eugenol and guaiacol. J Dent Res. 1997 Apr;76(4):848-51.

These results suggest that eugenol and guaiacol may exert their antinociceptive effects via the capsaicin receptor located on sensory terminals in the spinal cord.
6(0,0,1,1) Details
18218839 Chung G, Rhee JN, Jung SJ, Kim JS, Oh SB: Modulation of CaV2.3 calcium channel currents by eugenol. . J Dent Res. 2008 Feb;87(2):137-41.

In contrast, TRPV1 activation is prerequisite for the inhibition of Ca (V) 2.3 calcium channels by capsaicin.
1(0,0,0,1) Details
16109996 Lee MH, Yeon KY, Park CK, Li HY, Fang Z, Kim MS, Choi SY, Lee SJ, Lee S, Park K, Lee JH, Kim JS, Oh SB: Eugenol inhibits calcium currents in dental afferent neurons. . J Dent Res. 2005 Sep;84(9):848-51.

Abbreviations: high-voltage-activated calcium channel, HVACC; transient receptor potential vanilloid 1, TRPV1; trigeminal ganglion, TG; dorsal root ganglion, DRG; capsazepine, CZP.
1(0,0,0,1) Details
18824159 Cho JS, Kim TH, Lim JM, Song JH: Effects of eugenol on Na+ currents in rat dorsal root ganglion neurons. . Brain Res. 2008 Dec 3;1243:53-62. Epub 2008 Sep 19.

It also regulates ion channels involved in pain signaling, such as TRPV1 receptor, high-voltage-activated Ca (2+) channels, NMDA receptor and GABA (A) receptor.
1(0,0,0,1) Details
18543354 Morsy MA, Fouad AA: Mechanisms of gastroprotective effect of eugenol in indomethacin-induced ulcer in rats. Phytother Res. 2008 Oct;22(10):1361-6.

0(0,0,0,0) Details