| Literature DB >> 2444446 |
Abstract
A role of opioids as inhibitors of the non-adrenergic non-cholinergic (NANC) excitatory nerves has been studied in the guinea-pig bronchi using electrical field stimulation. Morphine and DAGO gave dose-dependent inhibition of NANC contraction, which was reversed by naloxone, whereas the cholinergic nerve and substance P responses were unaffected. [Met5]enkephalin and [Leu5]enkephalin weakly inhibited NANC contraction, whereas dynorphin-(1-13) had no effect. These results suggest that opiates inhibit NANC bronchoconstriction via mu-opioid receptors.Entities:
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Year: 1987 PMID: 2444446 DOI: 10.1016/0014-2999(87)90578-4
Source DB: PubMed Journal: Eur J Pharmacol ISSN: 0014-2999 Impact factor: 4.432