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Intrathecal NMDA (5 ng) facilitated wind-up but not C-fibre evoked responses, whereas 50 ng facilitated C-fibre and A delta-fibre evoked responses but not wind-up of convergent dorsal horn neurones in the halothane anaesthetized rat. Higher doses of NMDA and SP (10-500 ng) were without effect. Co-administered SP (10 ng) with NMDA (5 ng) facilitated A delta-fibre evoked responses and wind-up. Excitatory amino acid and peptide interactions are discussed.
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| http://dx.doi.org/10.1016/0304-3940(94)90297-6 | DOI Listing |
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