Abstract:
:Endogenous inhibitory controls were studied in the spinal nerve ligation model of neuropathic pain. Atipamezole, a selective alpha2-adrenoceptor antagonist, produced both mechanical and cold allodynia in those rats which had not developed clear neuropathic symptoms. The same doses (50 microg i.t. or 1 mg/kg s.c.) did not increase the severity of symptoms in rats which had developed them. The opioid receptor antagonist naloxone (20 microg i.t. or 1 mg/kg s.c.) had no effect on the neuropathic symptoms. These results indicate that mechanical and cold allodynia are under endogenous noradrenergic rather than opioidergic control in this model of neuropathic pain.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Xu M,Kontinen VK,Kalso Edoi
10.1016/s0014-2999(98)00910-8keywords:
subject
Has Abstractpub_date
1999-01-29 00:00:00pages
41-5issue
1eissn
0014-2999issn
1879-0712pii
S0014-2999(98)00910-8journal_volume
366pub_type
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