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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-8-10
pubmed:abstractText
Recent studies indicate the central neuroimmune and neuroinflammation activation play a critical role in the pathological states of pain. Pioglitazone, a potent synthetic agonists of PPARgamma, has shown to control neuroinflammation in many nervous system-related disorders. The present study was designed to explore the effects of pioglitazone in treating neuropathic pain and its possible neuroimmune mechanisms in the neuropathic pain using lumbar 5 (L5) spinal nerve transection rat model. L5 spinal nerve transection was done to produce hyperalgesia in rats. Pioglitazone (2.5, 5, and 10 mg/kg) was orally administered daily for 14 days, beginning from 1 hour before nerve transection. Mechanical hyperalgesia was measured using Von-Frey filament tests before and after the surgery. Rats were then sacrificed on day 14 postsurgery. The mRNA of inflammatory cytokines such as tumor necrosis factor (TNF-alpha), interleukin (IL-1beta) and nuclear factor kappa B (NF-kappaB) activity in brain were detected using reverse transcription-polymerase chain reaction and electrophoretic mobility shift assay. We found that pioglitazone (5 and 10 mg/kg) can markedly attenuate mechanical hyperalgesia produced by nerve transection, most significantly on the 14th day. The elevated TNF-alpha, IL-1beta, and NF-kappaB in brain were accordingly reduced. Our data could conclude that pioglitazone has ameliorative potential in attenuating the painful state associated with L5 nerve transection, which may further be attributed to inhibiting cerebral proinflammatory cytokines production and NF-kappaB activation in central nervous system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1936-2293
pubmed:author
pubmed:copyrightInfo
PsycINFO Database Record 2010 APA, all rights reserved.
pubmed:issnType
Electronic
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
359-65
pubmed:meshHeading
pubmed-meshheading:20695692-Animals, pubmed-meshheading:20695692-Brain, pubmed-meshheading:20695692-Cytokines, pubmed-meshheading:20695692-Disease Models, Animal, pubmed-meshheading:20695692-Hyperalgesia, pubmed-meshheading:20695692-Interleukin-1beta, pubmed-meshheading:20695692-Male, pubmed-meshheading:20695692-NF-kappa B, pubmed-meshheading:20695692-Neuralgia, pubmed-meshheading:20695692-Neuroimmunomodulation, pubmed-meshheading:20695692-Pain Measurement, pubmed-meshheading:20695692-Pain Threshold, pubmed-meshheading:20695692-Random Allocation, pubmed-meshheading:20695692-Rats, pubmed-meshheading:20695692-Rats, Sprague-Dawley, pubmed-meshheading:20695692-Spinal Cord, pubmed-meshheading:20695692-Spinal Nerves, pubmed-meshheading:20695692-Thiazolidinediones, pubmed-meshheading:20695692-Tumor Necrosis Factor-alpha
pubmed:year
2010
pubmed:articleTitle
Repeated administration of pioglitazone attenuates development of hyperalgesia in a rat model of neuropathic pain.
pubmed:affiliation
Department of Anesthesiology, Jinling Hospital, Medicine School of Nanjing University, Nanjing, PR China.
pubmed:publicationType
Journal Article