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Antiallodynic effects produced by stimulation of the periaqueductal gray matter in a rat model of neuropathic pain

DC Field Value Language
dc.contributor.author박용구-
dc.contributor.author이배환-
dc.date.accessioned2019-11-11T05:22:33Z-
dc.date.available2019-11-11T05:22:33Z-
dc.date.issued2000-
dc.identifier.issn0304-3940-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/171821-
dc.description.abstractIt has been well documented that there is opioid resistance in neuropathic pain. This indicates that the endogenous opioid system may not be involved effectively in modulating neuropathic pain. The present study sought to determine if activation of the descending pain inhibition system might produce analgesia in the animal neuropathic model we developed. Under ketamine anesthesia, male Sprague-Dawley rats were chronically implanted with stimulating electrodes in the ventral periaqueductal gray matter (PAG) and both the tibial and sural nerves of the sciatic nerve branches were severed. Pain sensitivity was measured with a von Frey filament and acetone applied to the sensitive area for 1 week postoperatively. Rats with neuropathic pain syndrome after transection of the tibial and sural nerves were tested as to the analgesic effects of ventral PAG stimulation for an additional two weeks. Electrical stimulation of the ventral PAG turned out to be highly effective in alleviating neuropathic pain. Mechanical allodynia and cold allodynia were reduced by PAG stimulation. Naloxone reversed the antiallodynic effects of ventral PAG stimulation. These results suggest that activation of the descending pain inhibition system including the ventral PAG reduces neuropathic pain syndrome and that opiates are involved in this system.-
dc.description.statementOfResponsibilityrestriction-
dc.languageEnglish-
dc.publisherElsevier Scientific Publishers Ireland-
dc.relation.isPartOfNeuroscience Letters-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.subject.MESHAnalgesia/methods*-
dc.subject.MESHAnimals-
dc.subject.MESHAxotomy-
dc.subject.MESHCold Temperature-
dc.subject.MESHDisease Models, Animal-
dc.subject.MESHElectric Stimulation Therapy/methods*-
dc.subject.MESHElectrodes, Implanted-
dc.subject.MESHHyperalgesia/etiology-
dc.subject.MESHMale-
dc.subject.MESHNaloxone/pharmacology-
dc.subject.MESHNarcotic Antagonists/pharmacology-
dc.subject.MESHPain Measurement/drug effects-
dc.subject.MESHPain Threshold/drug effects-
dc.subject.MESHPeriaqueductal Gray/physiology*-
dc.subject.MESHPhysical Stimulation-
dc.subject.MESHRats-
dc.subject.MESHRats, Sprague-Dawley-
dc.subject.MESHSciatic Neuropathy/therapy*-
dc.subject.MESHSural Nerve/physiology-
dc.subject.MESHTibial Nerve/physiology-
dc.titleAntiallodynic effects produced by stimulation of the periaqueductal gray matter in a rat model of neuropathic pain-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Neurosurgery (신경외과학교실)-
dc.contributor.googleauthorBae Hwan Lee-
dc.contributor.googleauthorSe-Hun Park-
dc.contributor.googleauthorRan Won-
dc.contributor.googleauthorYong Gou Park-
dc.contributor.googleauthorJin-Hun Sohn-
dc.identifier.doi10.1016/S0304-3940(00)01375-6-
dc.contributor.localIdA01578-
dc.contributor.localIdA02791-
dc.relation.journalcodeJ02364-
dc.identifier.eissn1872-7972-
dc.identifier.pmid10962146-
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0304394000013756-
dc.subject.keywordPeriaqueductal gray matter-
dc.subject.keywordNeuropathic pain-
dc.subject.keywordAnalgesia-
dc.subject.keywordElectrical stimulation-
dc.subject.keywordOpioids-
dc.subject.keywordNerve injury-
dc.contributor.alternativeNamePark, Yong Gou-
dc.contributor.affiliatedAuthor박용구-
dc.contributor.affiliatedAuthor이배환-
dc.citation.volume291-
dc.citation.number1-
dc.citation.startPage29-
dc.citation.endPage32-
dc.identifier.bibliographicCitationNeuroscience Letters, Vol.291(1) : 29-32, 2000-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Physiology (생리학교실) > 1. Journal Papers

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