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  • Title: Blockade of intrathecal 5-hydroxytryptamine-induced antinociception in rats by noradrenaline depletion.
    Author: Minor BG, Post C, Archer T.
    Journal: Neurosci Lett; 1985 Feb 28; 54(1):39-44. PubMed ID: 2983267.
    Abstract:
    The analgesic effect of 5-hydroxytryptamine (5-HT, 200 and 250 micrograms/kg) administered into the lumbar intrathecal space of rats was blocked in the tail-flick, hot-plate and shock titration tests of nociception when the animals had previously been treated with N-2-chloroethyl-N-ethyl-2-bromobenzylamine (DSP4), which depletes noradrenaline in the spinal cord. These results suggest an important modulatory role of noradrenaline upon spinal 5-HT mechanisms.
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