Abstract:
:We have tested for anti-nociceptive effects of the anticonvulsant KCNQ channel opener, N-(2-amino-4-(4-fluorobenzylamino)-phenyl)carbamic acid ethyl ester (retigabine), in rat models of experimental pain. In the chronic constriction injury and spared nerve models of neuropathic pain, injection of retigabine (5 and 20 mg/kg, p.o.) significantly attenuated (P<0.05) mechanical hypersensitivity in response to pin prick stimulation of the injured hindpaw. In contrast, retigabine had no effect on mechanical hypersensitivity to von Frey stimulation of the injured hindpaw in either model. Cold sensitivity in response to ethyl chloride was only attenuated (P<0.05) in the chronic constriction injury model. In the formalin test, retigabine (20 mg/kg, p.o.) attenuated flinching behaviour in the second phase compared with vehicle (P<0.05), and this effect was completely reversed by the KCNQ channel blocker 10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenone (XE-991; 3 mg/kg, i.p.). Neither retigabine nor XE-991 administration affected the latency to respond to noxious thermal stimulation of the tail in control animals. These results suggest that retigabine may prove to be effective in the treatment of neuropathic pain.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Blackburn-Munro G,Jensen BSdoi
10.1016/s0014-2999(02)02924-2keywords:
subject
Has Abstractpub_date
2003-01-24 00:00:00pages
109-16issue
2-3eissn
0014-2999issn
1879-0712pii
S0014299902029242journal_volume
460pub_type
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(01)00977-3
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journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(97)01561-6
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
pub_type: 杂志文章
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journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
pub_type: 杂志文章
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journal_title:European journal of pharmacology
pub_type: 杂志文章
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journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2016.05.038
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abstract::The distribution of P2-purinoceptors in pre-capillary resistance vessels was studied in vitro, using Krebs perfused rabbit ears and in vivo, in autoperfused hindquarters, intestinal and renal vasculatures of pentobarbitone anaesthetised cats. ATP (10(-10)-10(-6) mol i.a.) caused dose-dependent vasodilatation which, in...
journal_title:European journal of pharmacology
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