Results 211 to 220 of about 19,677 (253)
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Pharmacology of P2X channels

Pflügers Archiv - European Journal of Physiology, 2006
Significant progress in understanding the pharmacological characteristics and physiological importance of homomeric and heteromeric P2X channels has been achieved in recent years. P2X channels, gated by ATP and most likely trimerically assembled from seven known P2X subunits, are present in a broad distribution of tissues and are thought to play an ...
Joel R, Gever   +4 more
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Biophysics of P2X receptors

Pflügers Archiv - European Journal of Physiology, 2006
The P2X receptor is the baby brother of the ligand-gated ion channel super-family. An understanding of its role in human physiology is still developing, and no one truly knows how it works to transport ions across the membrane. In this study, we review some aspects of P2X channel biophysics, concentrating on ion permeation and gating.
Terrance M, Egan   +2 more
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P2X Receptors and Nociception

Pharmacological Reviews, 2001
The potential importance for nociception of P2X receptors, the ionotropic receptors activated by ATP, is underscored by the variety of pain states in which this endogenous ligand can be released. Several important findings have been made recently indicating that P2X receptors can be involved in pain mechanisms both centrally and in the periphery.
B A, Chizh, P, Illes
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Purine Ionotropic (P2X) Receptors

Current Pharmaceutical Design, 2007
Purinergic signaling is involved in the proper functioning of virtually all organs of the body. Although in some cases purines have a major influence on physiological functions (e.g. thrombocyte aggregation), more often they are just background modulators contributing to fine tuning of biological events.
L, Köles, S, Fürst, P, Illes
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Signaling at Purinergic P2X Receptors

Annual Review of Physiology, 2009
P2X receptors are membrane cation channels gated by extracellular ATP. Seven P2X receptor subunits (P2X1-7) are widely distributed in excitable and nonexcitable cells of vertebrates. They play key roles in inter alia afferent signaling (including pain), regulation of renal blood flow, vascular endothelium, and inflammatory responses.
Surprenant, Annmarie, Alan North, R.
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Pharmacology of Cloned P2X Receptors

Annual Review of Pharmacology and Toxicology, 2000
There are seven P2X receptor cDNAs currently known. Six homomeric (P2X1, P2X2, P2X3, P2X4, P2X5, P2X7) and three heteromeric (P2X2/P2X3, P2X4/P2X6, P2X1/P2X5) P2X receptor channels have been characterized in heterologous expression systems. Homomeric P2X1 and P2X3 receptors are readily distinguishable by their rapid desensitization, the agonist action
North, R. Alan, Surprenant, Annmarie
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P2X receptor ligands and pain

Expert Opinion on Therapeutic Patents, 2006
P2X receptors belong to a superfamily of ligand-gated ion channels that conduct the influx of Ca(2+), Na(+) and K(+) cations following activation by extracellular nucleotides such as ATP. Molecular cloning studies have identified seven subunits, namely P2X(1-7), that share approximately 40 - 50% identity in amino acid sequences within the subfamily ...
Char-Chang, Shieh   +3 more
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P2X receptors and trigeminal neuralgia

NeuroReport, 2019
There is currently no effective cure for trigeminal neuralgia (TN) - a relatively common disease that causes long-term pain in patients. Previous research has shown that ionotropic ATP signaling through excitatory and calcium-permeable P2X receptor channels plays a critical role in pathological pain generation and maintenance.
Jia-Juan, Li   +3 more
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Molecular Structure of P2X Receptors

Current Topics in Medicinal Chemistry, 2004
P2X receptors are ligand-gated ion channels that transduce many of the physiological effects of extracellular ATP. There has been a dramatic increase in awareness of these receptors over the past 5 or so years, in great part due to their molecular cloning and characterization.
Terrance M, Egan   +2 more
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ATP-gated P2X cation-channels

Neuropharmacology, 2009
P2X receptors are ATP-gated cation channels with important roles in diverse pathophysiological processes. Substantial progress has been made in the last few years with the discovery of both subunit selective antagonists and modulators. The purpose of this brief review is to summarize the advances in the pharmacology of P2X receptors, with key ...
Michael F, Jarvis, Baljit S, Khakh
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