| Literature DB >> 9145787 |
Abstract
Interactions between delta-opioid receptors and morphine-preferring mu-opioid receptor subtypes have been suggested. Availability of transgenic mu-opioid receptor knockout mice allows assessment of mu-opioid receptor roles in the analgesia produced by the classical delta-opioid receptor agonist [D-Pen2,D-Pen5]enkephalin (DPDPE) in hot-plate and tail-flick tests. DPDPE analgesia was dramatically reduced in mu-opioid receptor knockout mice in a gene-dose-dependent fashion. The analgesia induced by this classic delta-opioid receptor agonist depends on intact mu-opioid receptors, suggesting that selective delta-opioid receptor drugs may require mu-opioid receptor occupancies for full efficacy.Entities:
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Year: 1997 PMID: 9145787 DOI: 10.1016/s0014-2999(97)10016-4
Source DB: PubMed Journal: Eur J Pharmacol ISSN: 0014-2999 Impact factor: 4.432