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April 15, 2026Scientific ReportsOpen Access

Effects of analgesia on the response to a noxious stimulus in Norway lobsters (Nephrops norvegicus)

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Authors

EKEleftherios KasiourasGRGuiomar RotllantAGAlbin Gräns

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Overview

Research investigates analgesic drug effects on nociceptive responses in Norway lobsters, highlighting humane treatment implications.

Key Points

  • To assess how analgesic drugs affect the response of Norway lobsters to nociceptive stimuli like electric shock.
  • Monitored lobster behaviour before and after electric shock for two hours, with and without analgesic treatment.
  • Analyzed haemolymph and nervous tissues for stress indicators, including lactate and glucose levels.
  • Employed local anaesthetic and analgesic drugs, comparing their effects on tail flipping responses to electric shock.
  • Electric shock triggered tail flipping responses absent in control groups.
  • Local anaesthetic and analgesic treatment significantly reduced tail flipping during shock.
  • Aspirin increased immediate grooming and elevated haemolymph lactate, with downregulated gene expression in ganglia.

Cite This Study

Kasiouras et al. (2026) studied this question.

synapsesocial.com/papers/69df2bece4eeef8a2a6b0de8https://doi.org/10.1038/s41598-026-41687-w
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