ArticleThe Journal of physiology2003
P2X2 subunits contribute to fast synaptic excitation in myenteric neurons of the mouse small intestine.
Article in The Journal of physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
47 citing papers in PubMed, 120 citations in OpenAlex.
- Generalised Hodgkin-Huxley model captures human P2X and AMPA receptor currents.The Journal of physiology · 2026Article
- Purinergic signaling in the gut neuro-glial-immune axis: mechanisms of homeostasis, inflammation, and gastrointestinal dysfunction.Frontiers in gastroenterology (Lausanne, Switzerland) · 2026Review
- Burst-patterned stimulation restores colonic motility in preclinical models.Science translational medicine · 2025Article
- Targeting P2X Receptors-Current Progress in Sepsis.International journal of inflammation · 2025Review
- Immunodetection of P2X2 Receptor in Enteric Nervous System Neurons of the Small Intestine of Pigs.Animals : an open access journal from MDPI · 2022Article
- Computational simulations and Ca2+ imaging reveal that slow synaptic depolarizations (slow EPSPs) inhibit fast EPSP evoked action potentials for most of their time course in enteric neurons.PLoS computational biology · 2022Article
- Identification of intrinsic primary afferent neurons in mouse jejunum.Neurogastroenterology and motility · 2020Article
- Drosophila taste neurons as an agonist-screening platform for P2X receptors.Scientific reports · 2020Article
- Recommendations for evaluation of bladder and bowel function in pre-clinical spinal cord injury research.The journal of spinal cord medicine · 2020Review
- Optogenetic analysis of neuromuscular transmission in the colon of ChAT-ChR2-YFP BAC transgenic mice.American journal of physiology. Gastrointestinal and liver physiology · 2019Article
- Bile acids are potent inhibitors of rat P2X2 receptors.Purinergic signalling · 2019Article
- Post-inflammatory Ileitis Induces Non-neuronal Purinergic Signaling Adjustments of Cholinergic Neurotransmission in the Myenteric Plexus.Frontiers in pharmacology · 2017Article
- A New Mechanism of Receptor Targeting by Interaction between Two Classes of Ligand-Gated Ion Channels.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016Article
- The Effect of Ischemia and Reperfusion on Enteric Glial Cells and Contractile Activity in the Ileum.Digestive diseases and sciences · 2015Article
- Neuropharmacology of purinergic receptors in human submucous plexus: Involvement of P2X₁, P2X₂, P2X₃ channels, P2Y and A₃ metabotropic receptors in neurotransmission.Neuropharmacology · 2015Article
- The purinergic neurotransmitter revisited: a single substance or multiple players?Pharmacology & therapeutics · 2014Review
- Expression of P2X3 and P2X 5 myenteric receptors varies during the intestinal postnatal development in the guinea pig.Cellular and molecular neurobiology · 2014Article
- Purinergic signalling in the gastrointestinal tract and related organs in health and disease.Purinergic signalling · 2014Review
- Electrophysiological characteristics of enteric neurons isolated from the immortomouse.Digestive diseases and sciences · 2013Article
- Molecular and functional properties of P2X receptors--recent progress and persisting challenges.Purinergic signalling · 2012Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
P2X receptors are ATP-gated cation channels composed of one or more of seven different subunits. ATP acts at P2X receptors to contribute to fast excitatory postsynaptic potentials (fEPSPs) in myenteric neurons but the subunit composition of enteric P2X receptors is unknown. These studies used tissues from P2X2 wild-type (P2X2+/+) and P2X2 gene knockout (P2X2-/-) mice to investigate the role of this subunit in enteric neurotransmission. Intracellular electrophysiological methods were used to record synaptic and drug-induced responses from ileal myenteric neurons in vitro. Drug-induced longitudinal muscle contractions and peristaltic contractions of ileal segments were also studied in vitro. Gastrointestinal transit was measured as the progression in 30 min of a liquid radioactive marker administered by gavage to fasted mice. RT-PCR analysis of mRNA from intestinal tissues and data from immunohistochemical studies verified P2X2 gene deletion. The fEPSPs recorded from S neurons in tissues from P2X2+/+ mice were reduced by mecamylamine (nicotinic cholinergic receptor antagonist) and PPADS (P2X receptor antagonist). The fEPSPs recorded from S neurons from P2X2-/- mice were unaffected by PPADS but were blocked by mecamylamine. ATP depolarized S and AH neurons from P2X2+/+ mice. ATP depolarized AH but not S neurons from P2X2-/- mice. alpha,beta-Methylene ATP (alpha,beta-mATP)(an agonist at P2X3 subunit-containing receptors) did not depolarize S neurons but it did depolarize AH neurons in P2X2+/+ and P2X2-/- mice. Peristalsis was inhibited in ileal segments from P2X2-/- mice but longitudinal muscle contractions caused by nicotine and bethanechol were similar in segments from P2X2+/+ and P2X2-/- mice. Gastrointestinal transit was similar in P2X2+/+ and P2X2-/- mice. It is concluded that P2X2 homomeric receptors contribute to fEPSPs in neural pathways underlying peristalsis studied in vitro.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.