Naloxone blocks the analgesic action of levorphanol but not of dextrorphan in the leopard frog |
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| Authors: | M Nohmi K Kuba |
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| Affiliation: | Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60680, U.S.A. |
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| Abstract: | Fluorescent dyes Fast Blue and Nuclear Yellow injected into pairs of visual cortical and parietal 'association' cortical areas in the cat revealed the presence of retrogradely double-labeled cells in the intralaminar nuclei and lateral posterior-pulvinar complex of the thalamus. These results demonstrate the projection of individual thalamic neurons onto multiple cortical areas. |
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| Keywords: | dextrorphan levorphanol naloxone μ-opiate receptor σ-opiate receptor analgesia amphibians |
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