Neuropathic pain is chronic pain generated by disorders of the peripheral and central nervous system, including skull base tumours. A skull base tumour can be any type of tumour that forms in the skull base, and this ...Neuropathic pain is chronic pain generated by disorders of the peripheral and central nervous system, including skull base tumours. A skull base tumour can be any type of tumour that forms in the skull base, and this includes vestibular schwannomas which arise from the sheath of the inner ear vestibulocochlear nerve(eighth cranial nerve). Growth of the tumour, surgical resection, and/or stereotactic radiotherapy may result incompression and/or irritation of the fifth cranial nerve(trigeminal nerve) resulting in facial pain and/or numbness. Non-trigeminal afferent input may contribute to the wide constellation of symptoms seen in orofacial pain patients. The purpose of this report was to develop a decision tool to guide the recognition and treatment of neuropathic pain in this specialized population. Recommendations for treatment are based on evidence presented in Canadian and international neuropathic treatment guidelines. Algorithms are included for assessment and treatment of adult patients with agents that are recognized to have analgesic efficacy within the broad context of neuropathic pain.展开更多
Background： Trigeminal neuralgia （TN） is a neuropathic pain syndrome. It is the most frequent cranial neuralgia and defined as sudden, usually unilateral and lightning-like, knife-like or burning-like recurrent epi...Background： Trigeminal neuralgia （TN） is a neuropathic pain syndrome. It is the most frequent cranial neuralgia and defined as sudden, usually unilateral and lightning-like, knife-like or burning-like recurrent episodes of pain within the distribution area of one or more divisions of the trigeminal nerve. Here we reported that an 81-year-old woman with TN who complained of severe pain on her right face showed a complete clinical relief after comprehensive therapy containing fire needle, filiform needle and blood-letting therapy. Methods： The patient was applied fire needle combined with filiform needle therapy （3 times / week for 4 months） and three consecutive fire needle combined with blood-letting therapy （3 times / week for one week）. Fire needle was inserted into the back points of Du meridian, the first lateral line of bladder meridian, the right spreading area of the trigeminal nerve and the points around the pain radiation site. The filiform needle acupuncture was applied to the points on the right face including Yuyao （EX-HN4）, Yangbai （GB14）, Toulinqi （GB15）, et al; points on the abdomen including Xiawan （RN10）, Qihai （RN16）, Guanyuan （RN14） and the bilateral points including Tianshu （ST25）, Daheng （SP15）, Zusanli （ST36）, et al. Finally, the three-edged fire needle punctured the points of Yangbai （GB41）, Shangguan （GB3）, Jiache （ST6） on the right face accompanied by the cupping method on the bleeding points. Results： The patient reported the complete disappearance of pain and could open mouth and eat normally. The face was normal and no triggering pain recurred after one-month follow-up. Conclusions： The fire needle combined with blood-letting therapy can cure the TN and might provide an alternative non-drug therapy for those patients who still suffered from TN after other medical treatments or whom that refused surgical treatment.展开更多
Neuropathic pain is a debilitating clinical condition with few efficacious treatments, warranting development of novel therapeu- tics. Ozone is widely used as an alternative therapy for many different pain conditions,...Neuropathic pain is a debilitating clinical condition with few efficacious treatments, warranting development of novel therapeu- tics. Ozone is widely used as an alternative therapy for many different pain conditions, with exact mechanisms still elusive. In this study, we found that a single peri-sciatic nerve injection of ozone decreased mechanical aUodynia and thermal hyperalgesia, and normalized the phosphorylation of protein kinase C y, N-methyI-D-aspartate receptor, and extracellular signal-regulated kinase in a chronic constriction injury （CCI） model in rat sciatic nerve. Meanwhile, ozone significantly suppressed CCI-induced activation of spinal microgUa. More importantly, the anti-nociceptive effect of ozone depended on the activation of 5＇-adenosine monophosphate （AMP）-activated protein kinase （AMPK）, which was proved by the fact that the phosphorylated AMPK level increased during the ozone therapy and AMPK antagonist abolished the effect of ozone in vivo and in vitro. In addition, direct injection of AMPK agonist could replicate the anti-nociceptive effect of ozone in CCI rats. In conclusion, our observations indicate that peri-sciatic nerve injection of ozone activates AMPK to attenuate CCI-induced neuropathic pain.展开更多
文摘[目的]通过脂多糖(lipopolysaccharide,LPS)诱导背根神经节神经元(dorsal root ganglion neuron,DRGn)发生损伤,探讨芍药甘草汤对DRGn炎性损伤的保护作用及机制。[方法]实验分为4组:空白对照(Con)组、LPS(LPS)组、芍药甘草汤(SGD)组、芍药甘草汤+尼克酰胺(SGD+NAM)组。相差显微镜下观察各组DRGn形态的改变;CCK法检测各组DRGn的存活率,并且通过Western blot法检测各组神经元沉默信息调节因子2(silencing information regulator 2,Sir2)相关酶1(silent mating type information regulation 2 homolog 1,SIRT1)、mTOR、p-mTOR和Ac-NF-κB的表达。[结果]LPS组较Con组DRGn的形态发生明显改变,存活率明显降低(P<0.01),SIRT1和p-mTOR表达降低(P<0.05),mTOR和Ac-NF-κB表达增高(P<0.05);SGD组较LPS组DRGn的存活率增加(P<0.01),SIRT1和p-mTOR表达增加(P<0.05),mTOR和Ac-NF-κB的表达降低(P<0.05);SGD+NAM组较SGD组DRGn的存活率降低(P<0.05),SIRT1和p-mTOR的表达降低(P<0.05),mTOR和Ac-NF-κB的表达增高(P<0.05)。[结论]LPS可诱导背根神经节神经元发生损伤。芍药甘草汤可能是通过增加SIRT1的表达,促进mTOR向p-mTOR转化,降低Ac-NF-κB的表达,进而抑制细胞内后续炎症因子的释放从而发挥其神经元保护作用。
文摘Neuropathic pain is chronic pain generated by disorders of the peripheral and central nervous system, including skull base tumours. A skull base tumour can be any type of tumour that forms in the skull base, and this includes vestibular schwannomas which arise from the sheath of the inner ear vestibulocochlear nerve(eighth cranial nerve). Growth of the tumour, surgical resection, and/or stereotactic radiotherapy may result incompression and/or irritation of the fifth cranial nerve(trigeminal nerve) resulting in facial pain and/or numbness. Non-trigeminal afferent input may contribute to the wide constellation of symptoms seen in orofacial pain patients. The purpose of this report was to develop a decision tool to guide the recognition and treatment of neuropathic pain in this specialized population. Recommendations for treatment are based on evidence presented in Canadian and international neuropathic treatment guidelines. Algorithms are included for assessment and treatment of adult patients with agents that are recognized to have analgesic efficacy within the broad context of neuropathic pain.
文摘Background： Trigeminal neuralgia （TN） is a neuropathic pain syndrome. It is the most frequent cranial neuralgia and defined as sudden, usually unilateral and lightning-like, knife-like or burning-like recurrent episodes of pain within the distribution area of one or more divisions of the trigeminal nerve. Here we reported that an 81-year-old woman with TN who complained of severe pain on her right face showed a complete clinical relief after comprehensive therapy containing fire needle, filiform needle and blood-letting therapy. Methods： The patient was applied fire needle combined with filiform needle therapy （3 times / week for 4 months） and three consecutive fire needle combined with blood-letting therapy （3 times / week for one week）. Fire needle was inserted into the back points of Du meridian, the first lateral line of bladder meridian, the right spreading area of the trigeminal nerve and the points around the pain radiation site. The filiform needle acupuncture was applied to the points on the right face including Yuyao （EX-HN4）, Yangbai （GB14）, Toulinqi （GB15）, et al; points on the abdomen including Xiawan （RN10）, Qihai （RN16）, Guanyuan （RN14） and the bilateral points including Tianshu （ST25）, Daheng （SP15）, Zusanli （ST36）, et al. Finally, the three-edged fire needle punctured the points of Yangbai （GB41）, Shangguan （GB3）, Jiache （ST6） on the right face accompanied by the cupping method on the bleeding points. Results： The patient reported the complete disappearance of pain and could open mouth and eat normally. The face was normal and no triggering pain recurred after one-month follow-up. Conclusions： The fire needle combined with blood-letting therapy can cure the TN and might provide an alternative non-drug therapy for those patients who still suffered from TN after other medical treatments or whom that refused surgical treatment.
文摘Neuropathic pain is a debilitating clinical condition with few efficacious treatments, warranting development of novel therapeu- tics. Ozone is widely used as an alternative therapy for many different pain conditions, with exact mechanisms still elusive. In this study, we found that a single peri-sciatic nerve injection of ozone decreased mechanical aUodynia and thermal hyperalgesia, and normalized the phosphorylation of protein kinase C y, N-methyI-D-aspartate receptor, and extracellular signal-regulated kinase in a chronic constriction injury （CCI） model in rat sciatic nerve. Meanwhile, ozone significantly suppressed CCI-induced activation of spinal microgUa. More importantly, the anti-nociceptive effect of ozone depended on the activation of 5＇-adenosine monophosphate （AMP）-activated protein kinase （AMPK）, which was proved by the fact that the phosphorylated AMPK level increased during the ozone therapy and AMPK antagonist abolished the effect of ozone in vivo and in vitro. In addition, direct injection of AMPK agonist could replicate the anti-nociceptive effect of ozone in CCI rats. In conclusion, our observations indicate that peri-sciatic nerve injection of ozone activates AMPK to attenuate CCI-induced neuropathic pain.
