Home >> Physiology >> ForumTopic: vanilloid receptors
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| prbhkrms Total Posts: 6 | Posted: Fri Mar 04, 2011 06:13 am The transient receptor potential cation channel subfamily V member 1 (TrpV1), also known as the capsaicin receptor and the vanilloid receptor 1, is a protein that, in humans, is encoded by the TRPV1 gene. It was the first isolated member of the transient receptor potential vanilloid receptor proteins which in turn are a sub family of the transient receptor potential protein group.This protein is a member of the TRPV group of transient receptor potential family of ion channels TRPV1 is a nonselective cation channel that may be activated by a wide variety of exogenous and endogenous physical and chemical stimuli. The best-known activators of TRPV1 are heat greater than 43°C and capsaicin, the pungent compound in hot chili peppers. The activation of TRPV1 leads to painful, burning sensation. Its endogenous activators include: low pH (acidic conditions), the endocannabinoid anandamide, N-arachidonoyl-dopamine. TRPV1 receptors are found mainly in the nociceptive neurons of the peripheral nervous system, but they have also been described in many other tissues, including the central nervous system. TRPV1 is involved in the transmission and modulation of pain (nociception), as well as the integration of diverse painful stimuli |