Neuropathic pain is one of the most intractable diseases. The lack effective therapy measures remains a critical problem due to poor understanding cause neuropathic pain. aim this study was investigate effect dexmedetomidine (Dex) in trigeminal and underlying molecular mechanism order identify possible therapeutic targets. We used chronic constriction injury (CCI) model mice whether Dex prevent...

Background Mesenchymal stem cell (MSC) has been one of the potential tools in neuropathic pain therapy; however, the augmented efficacy may be expected when they are modified with human proenkephalin (hPPE) gene. In the current study, the antinociceptive effect of human bone marrow stem cells (hBMSCs) engineered with hPPE gene (hPPE-hBMSCs) on sciatic nerve chronic constriction injury (CCI)-ind...

Previous studies have suggested that sympathetic sprouting in the periphery may contribute to the development and persistence of sympathetically maintained pain in animal models of neuropathic pain. In the present study, we examined changes in the cutaneous innervation in rats with a chronic constriction injury to the sciatic nerve. At several periods postinjury, hind paw skin was harvested and...

introduction: glial activation and secretion of cytokines at the spinal level is known as part of chronic pain pathogenesis. although changes in tnfα at the supraspinal level are reported during chronic pain, its exact role and site of action remain to be elucidated. we investigated the effect of microinfusion of tnfα into the lc in a rat model of neuropathic pain. methods: male wistar rats wer...

Compounds combining dual inhibitory action against FAAH and cyclooxygenase (COX) may be potentially useful analgesics. Here, we describe a novel flurbiprofen analogue, N-(3-bromopyridin-2-yl)-2-(2-fluoro-(1,1'-biphenyl)-4-yl)propanamide (Flu-AM4). The compound is competitive, reversible inhibitor of with Ki value 13 nM which inhibits COX activity in substrate-selective manner. Molecular modelli...

BACKGROUND It has been reported that carnosic acid (CA) exhibits a range of biological activities including hepatoprotective, antioxidant and anti-inflammatory. However, the effect of carnosic acid in neuropathic pain remained elusive. METHODS A neuropathic pain model of chronic constriction injury (CCI) was established in adult male Sprague-Dawley rats. Mechanical withdrawal threshold (MWT) ...

BACKGROUND Alternative medicine is noted for its clinical effect and minimal invasiveness in the treatment of neuropathic pain. Go-sha-jinki-Gan, a traditional Japanese herbal medicine, has been used for meralgia and numbness in elderly patients. However, the exact mechanism of GJG is unclear. This study aimed to investigate the molecular mechanism of the analgesic effect of GJG in a chronic co...

OBJECTIVES Neuropathic pain is caused by lesions or diseases affecting the somatosensory system and often responds poorly to typical medications. In this study, we evaluated anti-nociceptive effects of morphine, gabapentin and their combination on heat hyperalgesia, cold and mechanical allodynia in chronic constriction injury (CCI) model of neuropathic pain in rats. MATERIALS AND METHODS Morp...