Abstract:
:The effect of peripheral and intrathecal administration of the bradykinin B2 receptor antagonist HOE140 and the non-steroidal anti-inflammatory drug indomethacin were studied on the response of dorsal horn nociceptive neurones to formalin in the anaesthetized rat. Peripheral pretreatment with HOE140 reduced both phases of the formalin response whereas subcutaneous administration of indomethacin (5 mg/kg) reduced only the second phase. Pre-treatment with intrathecal HOE140 resulted in a dose-dependent reduction of the second phase whereas a high dose (500 micrograms) intrathecal indomethacin reduced both phases of the response. Bradykinin plays a role in peripheral nociception during the first and second phase of the response whereas the prostaglandins are only involved during the second phase. The converse is true centrally, the prostaglandins appear to be involved in both phases of the formalin response whereas bradykinin only plays a central role during the second phase of the response.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Chapman V,Dickenson AHdoi
10.1016/0014-2999(92)90484-lkeywords:
subject
Has Abstractpub_date
1992-09-04 00:00:00pages
427-33issue
3eissn
0014-2999issn
1879-0712pii
0014-2999(92)90484-Ljournal_volume
219pub_type
杂志文章abstract::Evidence for an analgesic interaction between delta-9-tetrahydrocannabinol (Delta(9)-THC) and morphine was sought using an experimental pain model applied to normal volunteers. The study incorporated a double blinded, four treatment, four period, four sequence, crossover design. Subjects received Delta(9)-THC 5 mg ora...
journal_title:European journal of pharmacology
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journal_title:European journal of pharmacology
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