Summary

慢性缩窄大鼠坐骨神经疼痛过敏测试

Published: March 13, 2012
doi:

Summary

由于手术简单和健壮的行为结果,坐骨神经慢性缩窄是神经​​痛卓越的动物模型之一。手术后24小时内,疼痛过敏建立并可以使用冯弗雷触觉(机械测试)和足底的镇痛米(热试验)的定量测​​定。

Abstract

慢性神经性疼痛,从中央或周围神经系统的损害,是一种普遍的和虚弱的状态,影响7-18人口的1,2%。症状包括自发性疼痛(刺痛,烧灼,电休克一样),感觉迟钝,感觉异常,痛觉异常(通常非疼痛刺激产生疼痛)和痛觉过敏(增加疼痛刺激的反应)。感觉症状与行为障碍,如失眠和抑郁,病态的合作。为了研究慢性神经痛几个模仿周围神经损伤的动物模型已开发,使用最广泛的是贝内特和谢的(1988)单方面坐骨神经慢性压迫性损伤(CCI)3( 图1)。在这里,我们提出一个表演CCI和测试疼痛过敏的方法。

CCI是在麻醉下进行,一方面通过使暴露坐骨神经亲属的切口,并通过切割之间的臀肌浅和股二头肌肌肉结缔组织。四个铬肠道结扎坐骨神经周围松散地绑在1毫米的间隔,只是阻挡而不是逮捕epineural的血流量。关闭伤口缝合肌肉和皮肤中的主食。然后,动物被允许恢复从手术前24小时开始疼痛过敏测试。

行为测试,老鼠被放入测试设备,并允许习惯于测试过程。测试的区域是中旬的后肢跖面( 图2),属于坐骨神经分布区域内。通过机械刺激使用电子动态足底冯弗雷触觉或手册·冯·弗雷毛发4受伤和未受伤的后爪机械痛阈值评估。机械撤出门槛是施加最大的压力(克),触发爪子撤出。热退缩潜伏期哈格里夫斯等人 (1988)首次描述,测量,后肢被暴露在辐射热束通过一个透明的玻璃表面,使用足底镇痛米5,6。记录的时间为受伤和未受伤的后爪缩爪退缩潜伏期的热量刺激。继CCI的,机械的退出门槛,以及受伤的爪子热退缩潜伏期均明显减少,比基线测量和未受伤的爪子( 图3)。周围神经损伤与疼痛过敏测试相结合的CCI模型提供了一个模型系统调查的潜在治疗药物的有效性,修改慢性神经性疼痛。在我们的实验室中,我们利用热和机械灵敏度的后爪一起CCI调查的发病机制的神经免疫相互作用的作用治疗神经性疼痛。

Protocol

1。慢性坐骨神经无菌技术应该用于外科手术。外科工作表面用70%乙醇消毒和灭菌准备提前无菌文书(例如,罚款的剪刀,镊子,拉钩),纱布,订书钉和棉签。对于多次手术,清洁,并用70%乙醇或干大鼠之间的珠灭菌器resterilise文书。应戴口罩,头发的帽子和无菌手套。 收缩的神经,切成约3厘米长的小件浸泡在无菌生理盐水准备铬肠缝合,以防止干燥…

Discussion

CCI是一种广泛使用的外周神经损伤模型慢性神经痛。它是相对简单的执行,并产生损伤后一个月至少有一个强大和稳定的疼痛过敏。继CCI的,大鼠表现出受伤的后肢(一起举行的脚趾和足底弯曲,脚掌外翻),以及反复晃动,守卫和受伤的暗示在场的自发痛9后肢舔的姿势异常。除了 ​​感觉障碍,一些调查显示,CCI的唤起行为障碍,如扰乱社会互动,睡眠障碍,抑郁和焦虑样行为10-…

Offenlegungen

The authors have nothing to disclose.

Acknowledgements

笔者想承认CCI模型贝内特和谢(1988)的原始描述。

部分支持这项工作是由国家健康与澳大利亚医学研究理事会(编号568637)和新南威尔士州办事处资助科学和医学研究为GMT。

Materials

Name of the reagent/equipment Company Catalogue number Comments
Chromic gut Ethicon G-211 4-0 thickness
Isoflurane Delvet Pty. Ltd., Seven Hills, NSW n/a  
Mersilk Ethicon W-580 5-0 thickness
Autoclip Becton Dickinson 427631 9 mm stainless steel
Riodine Orion R1000802F 1% w/v iodine
Thermal plantar analgesia instrument Ugo Basile 37370  
Dynamic plantar aesthesiometer Ugo Basile 37400  

Referenzen

  1. Bouhassira, D., Lanteri-Minet, M., Attal, N., Laurent, B., Touboul, C. Prevalence of chronic pain with neuropathic characteristics in the general population. Pain. 136, 380-387 (2008).
  2. Toth, C., Lander, J., Wiebe, S. The prevalence and impact of chronic pain with neuropathic pain symptoms in the general population. Pain Med. 10, 918-929 (2009).
  3. Bennett, G. J., Xie, Y. K. A peripheral mononeuropathy in rat that produces disorders of pain sensation like those seen in man. Pain. 33, 87-107 (1988).
  4. Chaplan, S. R., Bach, F. W., Pogrel, J. W., Chung, J. M., Yaksh, T. L. Quantitative assessment of tactile allodynia in the rat paw. J. Neurosci. Methods. 53, 55-63 (1994).
  5. Hargreaves, K., Dubner, R., Brown, F., Flores, C., Joris, J. A new and sensitive method for measuring thermal nociception in cutaneous hyperalgesia. Pain. 32, 77-88 (1988).
  6. Yeomans, D. C., Proudfit, H. K. Characterization of the foot withdrawal response to noxious radiant heat in the rat. Pain. 59, 85-94 (1994).
  7. Dougherty, P. M., Garrison, C. J., Carlton, S. M. Differential influence of local anesthetic upon two models of experimentally induced peripheral mononeuropathy in the rat. Brain Research. 570, 109-115 (1992).
  8. Bennett, G. J., Chung, J. M., Honore, M., Seltzer, Z. Models of neuropathic pain in the rat. Curr. Protoc. Neurosci. Chapter 9, (2003).
  9. Attal, N., Jazat, F., Kayser, V., Guilbaud, G. Further evidence for 'pain-related' behaviours in a model of unilateral peripheral mononeuropathy. Pain. 41, 235-251 (1990).
  10. Hu, B., Doods, H., Treede, R. -. D., Ceci, A. Depression-like behaviour in rats with mononeuropathy is reduced by the CB2-selective agonist GW405833. Pain. 143, 206-212 (2009).
  11. Jesse, C., Wilhelm, E., Nogueira, C. Depression-like behavior and mechanical allodynia are reduced by bis selenide treatment in mice with chronic constriction injury: a comparison with fluoxetine, amitriptyline, and bupropion. Psychopharmacology. 212, 513-522 (2010).
  12. Monassi, C. R., Bandler, R., Keay, K. A. A subpopulation of rats show social and sleep-waking changes typical of chronic neuropathic pain following peripheral nerve injury. Eur. J. Neurosci. 17, 1907-1920 (2003).
  13. Roeska, K., Doods, H., Arndt, K., Treede, R. D., Ceci, A. Anxiety-like behaviour in rats with mononeuropathy is reduced by the analgesic drugs morphine and gabapentin. Pain. 139, 349-357 (2008).
  14. Kontinen, V. K., Kauppila, T., Paananen, S., Pertovaara, A., Kalso, E. Behavioural measures of depression and anxiety in rats with spinal nerve ligation-induced neuropathy. Pain. 80, 341-346 (1999).
  15. Urban, R., Scherrer, G., Goulding, E. H., Tecott, L. H., Basbaum, A. I. Behavioral indices of ongoing pain are largely unchanged in male mice with tissue or nerve injury-induced mechanical hypersensitivity. Pain. 152, 990-1000 (2011).
  16. Myers, R. R., Yamamoto, T., Yaksh, T. L., Powell, H. C. The role of focal nerve ischemia and Wallerian degeneration in peripheral nerve injury producing hyperesthesia. Anesthesiology. 78, 308-316 (1993).
  17. Grace, P. M., Hutchinson, M. R., Manavis, J., Somogyi, A. A., Rolan, P. E. A novel animal model of graded neuropathic pain: utility to investigate mechanisms of population heterogeneity. J. Neurosci. Methods. 193, 47-53 (2010).
  18. Kajander, K. C., Pollock, C. H., Berg, H. Evaluation of hindpaw position in rats during chronic constriction injury (CCI) produced with different suture materials. Somatosens Mot. Res. 13, 95-101 (1996).
  19. Xu, J., Pollock, C. H., Kajander, K. C. Chromic gut suture reduces calcitonin-gene-related peptide and substance P levels in the spinal cord following chronic constriction injury in the rat. Pain. 64, 503-509 (1996).
  20. Sommer, C., Schafers, M. Painful mononeuropathy in C57BL/Wld mice with delayed wallerian degeneration: differential effects of cytokine production and nerve regeneration on thermal and mechanical hypersensitivity. Brain. Res. 784, 154-162 (1998).
  21. Walczak, J. S., Beaulieu, P. Comparison of three models of neuropathic pain in mice using a new method to assess cold allodynia: the double plate technique. Neurosci. Lett. 399, 240-244 (2006).
  22. Maves, T. J., Pechman, P. S., Gebhart, G. F., Meller, S. T. Possible chemical contribution from chromic gut sutures produces disorders of pain sensation like those seen in man. Pain. 54, 57-69 (1993).
  23. Tall, J. M., Stuesse, S. L., Cruce, W. L., Crisp, T. Gender and the behavioral manifestations of neuropathic pain. Pharmacol Biochem. Behav. 68, 99-104 (2001).
  24. Chung, J. M., Choi, Y., Yoon, Y. W., Na, H. S. Effects of age on behavioral signs of neuropathic pain in an experimental rat model. Neurosci. Lett. 183, 54-57 (1995).
  25. Tanck, E. N., Kroin, J. S., McCarthy, R. J., Penn, R. D., Ivankovich, A. D. Effects of age and size on development of allodynia in a chronic pain model produced by sciatic nerve ligation in rats. Pain. 51, 313-316 (1992).
  26. Shir, Y., Sheth, R., Campbell, J. N., Raja, S. N., Seltzer, Z. Soy-containing diet suppresses chronic neuropathic sensory disorders in rats. Anesth. Analg. 92, 1029-1034 (2001).
  27. Yoon, Y. W., Lee, D. H., Lee, B. H., Chung, K., Chung, J. M. Different strains and substrains of rats show different levels of neuropathic pain behaviors. Experimental Brain Research. 129, 167-171 (1999).
  28. Mogil, J. S., Davis, K. D., Derbyshire, S. W. The necessity of animal models in pain research. Pain. 151, 12-17 (2010).
  29. Mogil, J. S. Animal models of pain: progress and challenges. Nat. Rev. Neurosci. 10, 283-294 (2009).
  30. Langford, D. J. Coding of facial expressions of pain in the laboratory mouse. Nat. Methods. 7, 447-449 (2010).
  31. Austin, P. J., Moalem-Taylor, G. The neuro-immune balance in neuropathic pain: involvement of inflammatory immune cells, immune-like glial cells and cytokines. J. Neuroimmunol. 229, 26-50 (2010).
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Austin, P. J., Wu, A., Moalem-Taylor, G. Chronic Constriction of the Sciatic Nerve and Pain Hypersensitivity Testing in Rats. J. Vis. Exp. (61), e3393, doi:10.3791/3393 (2012).

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