Title |
The selective serotonin reuptake inhibitor fluoxetine increases spontaneous afferent firing, but not mechanonociceptive sensitization, in octopus
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Published in |
Invertebrate Neuroscience, October 2017
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DOI | 10.1007/s10158-017-0203-1 |
Pubmed ID | |
Authors |
Paul V. Perez, Hanna M. Butler-Struben, Robyn J. Crook |
Abstract |
Serotonin is a widely studied modulator of neural plasticity. Here we investigate the effect of fluoxetine, a selective serotonin reuptake inhibitor, on short-term, peripheral nociceptive plasticity in the neurologically complex invertebrate, octopus. After crush injury to isolated mantle (body wall) tissue, application of 10 nM fluoxetine increased spontaneous firing in crushed preparations, but had a minimal effect on mechanosensory sensitization. Effects largely did not persist after washout. We suggest that transiently elevated, endogenous serotonin may help promote initiation of longer-term plasticity of nociceptive afferents and drive immediate and spontaneous behaviors aimed at protecting wounds and escaping dangerous situations. |
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