Abstract | BACKGROUND AND OBJECTIVES: METHODS: RESULTS:
Resiniferatoxin leads to an increase of paw withdrawal latency to a heat stimulus and caused a mechanical allodynia within 2 weeks. The expression of tumor necrosis factor α, IL-1β, p38, and NR2B was up-regulated in RTX-induced neuropathic pain rat model and lasted for at least 49 days. Microglia were activated at the early phase of the disease, whereas activated astrocytes were detected in the sustainment phase. Both minocycline and fluorocitrate attenuated the nociceptive behaviors and expression of related proteins. CONCLUSIONS: Activated glia participate in the pathogenesis of RTX-induced neuropathic pain and are likely to be the source of proinflammatory cytokines. Inhibition of glia contributes to an analgesic effect. These findings provide a novel strategy for the treatment of postherpetic neuralgia.
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Authors | Yishan Lei, Yuʼe Sun, Cuiʼe Lu, Zhengliang Ma, Xiaoping Gu |
Journal | Regional anesthesia and pain medicine
(Reg Anesth Pain Med)
2016 Nov/Dec
Vol. 41
Issue 6
Pg. 744-749
ISSN: 1532-8651 [Electronic] England |
PMID | 27429048
(Publication Type: Journal Article)
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Chemical References |
- Cytokines
- Diterpenes
- NR2B NMDA receptor
- Receptors, N-Methyl-D-Aspartate
- resiniferatoxin
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Topics |
- Animals
- Cytokines
(metabolism)
- Disease Models, Animal
- Diterpenes
- Hyperalgesia
- Neuralgia
(metabolism)
- Neuroglia
- Rats
- Rats, Sprague-Dawley
- Receptors, N-Methyl-D-Aspartate
(physiology)
- Spinal Cord
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