Effects of Chronic Morphine Treatment on Β-Endorphin-Related Peptides in the Caudal Medulla and Spinal Cord
dc.contributor.author | Bronstein, David M. | en_US |
dc.contributor.author | Gutstein, Howard B. | en_US |
dc.contributor.author | Akil, Huda | en_US |
dc.date.accessioned | 2010-04-01T15:11:32Z | |
dc.date.available | 2010-04-01T15:11:32Z | |
dc.date.issued | 1993-06 | en_US |
dc.identifier.citation | Bronstein, David M.; Gutstein, Howard B.; Akil, Huda (1993). "Effects of Chronic Morphine Treatment on Β-Endorphin-Related Peptides in the Caudal Medulla and Spinal Cord." Journal of Neurochemistry 60(6): 2304-2307. <http://hdl.handle.net/2027.42/65660> | en_US |
dc.identifier.issn | 0022-3042 | en_US |
dc.identifier.issn | 1471-4159 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/65660 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=8492132&dopt=citation | en_US |
dc.description.abstract | The effects of chronic morphine treatment on Β-endorphin (ΒE)-immunoreactive (ΒE-ir) peptide levels were determined in the rat caudal medulla and different areas of the spinal cord. Seven days of morphine pelleting had no effect on total ΒE-ir peptides in the caudal medulla. In contrast, it significantly increased ΒE-ir peptide concentrations in the cervical and thoracic regions of the spinal cord compared with placebo-pelleted controls, whereas in the lumbosacral region this trend did not reach statistical significance. Injections of the opiate receptor antagonist naloxone 1 h before the rats were killed had no effect on the morphine-induced increases in the cord. Chromatographic analyses revealed that enzymatic processing of ΒE-related peptides in the spinal cord seemed unaffected by the morphine and/or naloxone treatments. In light of previous data showing that morphine down-regulates ΒE biosynthesis in the hypothalamus, the present results suggest that the regulation of ΒE-ir peptides in the spinal cord is distinct from that found in other CNS areas. These data provide support for previous results suggesting that ΒE-expressing neurons may be intrinsic to the spinal cord. | en_US |
dc.format.extent | 402580 bytes | |
dc.format.extent | 3110 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 1993 International Society for Neurochemistry | en_US |
dc.subject.other | Opiate | en_US |
dc.subject.other | Endogenous Opioid | en_US |
dc.subject.other | Proopiomelanocortin | en_US |
dc.subject.other | Morphine | en_US |
dc.subject.other | Nucleus Tractus Solitarius. | en_US |
dc.title | Effects of Chronic Morphine Treatment on Β-Endorphin-Related Peptides in the Caudal Medulla and Spinal Cord | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Neurosciences | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | * Department ofAnesthesiology, University of Michigan, Ann Arbor, Michigan, U.S.A. | en_US |
dc.contributor.affiliationother | Mental Health Research Institute | en_US |
dc.identifier.pmid | 8492132 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/65660/1/j.1471-4159.1993.tb03518.x.pdf | |
dc.identifier.doi | 10.1111/j.1471-4159.1993.tb03518.x | en_US |
dc.identifier.source | Journal of Neurochemistry | en_US |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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