ArticleJournal of neurophysiology2018
Endocannabinoid-mediated potentiation of nonnociceptive synapses contributes to behavioral sensitization.
Article in Journal of neurophysiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 21 citations in OpenAlex.
- Role of Concentration in Opposing Effects of Anandamide on Nociceptive Synapses versus Non-nociceptive Synapses.eNeuro · 2026Article
- From nociception in aneural animals to human suffering: toward a comparative biology of pain.The Journal of experimental biology · 2025Review
- Injury alters sensory, motor, and integrative elements underlying operant conditioning in the medicinal leech.PloS one · 2025Article
- Characterization of a Fatty Acid Amide Hydrolase (FAAH) in Hirudo Verbana.Neurochemical research · 2024Article
- Characterization of a Fatty Acid Amide Hydrolase (FAAH) in Hirudo verbana.Research square · 2024Article
- Repetitive nociceptive stimulation elicits complex behavioral changes in Hirudo: evidence of arousal and motivational adaptations.The Journal of experimental biology · 2023Article
- Heterosynaptic long-term potentiation of non-nociceptive synapses requires endocannabinoids, NMDARs, CamKII, and PKCζ.Journal of neurophysiology · 2023Article
- Serotonin mediates stress-like effects on responses to non-nociceptive stimuli in the medicinal leech Hirudo verbana.The Journal of experimental biology · 2022Article
- Approaches to studying injury-induced sensitization and the potential role of an endocannabinoid transmitter.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2022Article
- Activity-Dependent Modulation of Tonic GABA Currents by Endocannabinoids inFrontiers in synaptic neuroscience · 2022Article
- The Endocannabinoid System and Invertebrate Neurodevelopment and Regeneration.International journal of molecular sciences · 2021Review
- Characterization of a monoacylglycerol lipase in the medicinal leech, Hirudo verbana.Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology · 2020Article
- Lights on Endocannabinoid-Mediated Synaptic Potentiation.Frontiers in molecular neuroscience · 2020Review
- Comparative studies of endocannabinoid modulation of pain.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Review
- Interaction between NMDA Receptor- and Endocannabinoid-Mediated Modulation of Nociceptive Synapses.Scientific reports · 2019Article
- Are the persistent effects of "gate control" stimulation on nociception a form of generalization of habituation that is endocannabinoid-dependent?Neurobiology of learning and memory · 2018Article
- Differential DNA methylation in Black and White individuals with chronic low back pain enrich different genomic pathways.Neurobiology of pain (Cambridge, Mass.)Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Endocannabinoids, such as 2-arachidonoyl glycerol (2-AG) and anandamide, can elicit long-term depression of both excitatory and inhibitory synapses. This latter effect will result in disinhibition and would therefore be expected to produce an increase in neural circuit output. However, there have been no examples directly linking endocannabinoid-mediated disinhibition to a change in a functional neurobehavioral circuit. The present study uses the well-characterized central nervous system of the medicinal leech, Hirudo verbana, to examine the functional/behavioral relevance of endocannabinoid modulation of an identified afferent synapse. Bath application of 2-AG potentiates synaptic transmission by pressure-sensitive sensory neurons (P cells) as well as the magnitude of the defensive shortening reflex elicited by P-cell stimulation. This potentiation requires activation of TRPV-like channels. Endocannabinoid/TRPV signaling was found to produce sensitization of the shortening reflex elicited by either direct stimulation of nearby nociceptive afferents (N cells) or noxious stimulation applied to skin several segments away. In both cases, heterosynaptic potentiation of P-cell synapses was observed in parallel with an increase in the magnitude of elicited shortening and both synaptic and behavioral effects were blocked by pharmacological inhibition of 2-AG synthesis or TRPV-like channel activation. Serotonin (5-HT) is known to play a critical role in sensitization in Hirudo and other animals, and the 5-HT
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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.