ArticleFrontiers in molecular neuroscience2024
Behavioral and pharmacological characterization of planarian nociception.
Article in Frontiers in molecular neuroscience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Backward scrunching: planarians escape from noxious stimuli, cannibalism, and predation.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026Article
- The Sensory Basis of Planarian Behavior.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Review
- Molecular Mechanism of Metformin Regulating the Regeneration of PlanarianInternational journal of molecular sciences · 2025Article
- Planarian RNAi knockdown: feeding once might just be enough.Frontiers in neuroscience · 2025Article
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5 authors.
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Abstract
Introduction: Pain mostly arises because specialized cells called nociceptors detect harmful or potentially harmful stimuli. In lower animals with less convoluted nervous system, these responses are believed to be purely nociceptive. Amongst invertebrate animal models, planarians are becoming popular in a wide range of pharmacological and behavioral studies beyond the field of regeneration. Recent publications led the way on pain studies by focusing on nociceptive behaviors such as the 'scrunching' gait displayed under various noxious stimuli, as opposed to the 'gliding' gait planarians usually adopt in normal conditions. Methods: In this study, we adapted commonly used nociceptive tests to further explore nociception in planarians of the species Results: Consequently, we demonstrated the reliability of the scrunching gait in this planarian species, which they displayed in a dose-dependent manner when exposed to the irritant AITC. We also showed that suppressing the expression of TRPA1 ion channels completely suppressed the scrunching gait, demonstrating the involvement of TRPA1 nociceptors in this nociceptive reaction. Besides, we also explored the effects of two common analgesics that both displayed strong antinociceptive properties. First, morphine reduced the chemically-induced nociceptive scrunching gaits by more than 20% and shifted the Discussion: Thus, we managed to characterize both behavioral and pharmacological aspects of
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