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- W2322230810 endingPage "174480691663347" @default.
- W2322230810 startingPage "174480691663347" @default.
- W2322230810 abstract "BackgroundClinical management of neuropathic pain, which is pain arising as a consequence of a lesion or a disease affecting the somatosensory system, partly relies on the use of anticonvulsant drugs such as gabapentinoids. Therapeutic action of gabapentinoids such as gabapentin and pregabalin, which act by the inhibition of calcium currents through interaction with the α2δ-1 subunit of voltage-dependent calcium channels, is well documented. However, some aspects of the downstream mechanisms are still to be uncovered. Using behavioral, genetic, and pharmacological approaches, we tested whether opioid receptors are necessary for the antiallodynic action of acute and/or long-term pregabalin treatment in the specific context of neuropathic pain. ResultsUsing the cuff model of neuropathic pain in mice, we show that acute pregabalin administration at high dose has a transitory antiallodynic action, while prolonged oral pregabalin treatment leads to sustained antiallodynic action, consistent with clinical observations. We show that pregabalin remains fully effective in μ-opioid receptor, in δ-opioid receptor and in κ-opioid receptor deficient mice, either female or male, and its antiallodynic action is not affected by acute naloxone. Our work also shows that long-term pregabalin treatment suppresses tumor necrosis factor-α overproduction induced by sciatic nerve constriction in the lumbar dorsal root ganglia. ConclusionsWe demonstrate that neither acute nor long-term antiallodynic effect of pregabalin in a context of neuropathic pain is mediated by the endogenous opioid system, which differs from opioid treatment of pain and antidepressant treatment of neuropathic pain. Our data are also supportive of an impact of gabapentinoid treatment on the neuroimmune aspect of neuropathic pain." @default.
- W2322230810 created "2016-06-24" @default.
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- W2322230810 date "2016-01-01" @default.
- W2322230810 modified "2023-10-18" @default.
- W2322230810 title "The antiallodynic action of pregabalin in neuropathic pain is independent from the opioid system" @default.
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- W2322230810 doi "https://doi.org/10.1177/1744806916633477" @default.
- W2322230810 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4956392" @default.
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- W2322230810 hasPublicationYear "2016" @default.
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