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COX2表达在脊髓损伤引起的神经病痛中起作用
Masakazu Toi1, Tachibana Toshiya1, Koichi Noguchi2
1Department of Orthopaedic Surgery, Hyogo Medical University, Nishinomiya, Japan.
Neuroscience letters
|January 29, 2024
概括
脊髓损伤会增加血管细胞中的循环氧化酶2 (COX2),导致神经病痛. 抑制COX2有效降低了老鼠的疼痛过敏,突出了其治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 疼痛研究 疼痛研究
- 脊髓损伤 脊髓损伤 脊髓损伤
背景情况:
- 脊髓损伤 (SCI) 后的神经病痛 (NeP) 显著损害生活质量.
- 循环氧化酶2 (COX2) 与外围神经损伤引起的NeP有关,但其在SCI后的作用需要进一步调查.
研究的目的:
- 为了确定胸部SCI是否会改变腰脊髓中COX1和COX2mRNA的表达.
- 评估COX2抑制剂在缓解SCI诱导的疼痛行为方面的有效性.
主要方法:
- 在Sprague-Dawley大鼠中建立了一个胸脊髓伤损伤模型.
- 使用RT-PCR量化了COX1和COX2mRNA水平.
- 通过免疫组织化学和局部杂交组织化学评估了COX2表达局部化和时间.
- 在服用COX2抑制剂后,使用动态脚部静脉计测量机械体.
主要成果:
- 胸部SCI在受伤后的5日和7天显著提高了腰脊髓血管内皮细胞中的COX2 mRNA和蛋白质的调节.
- 没有观察到COX1表达的显著变化.
- 用COX2抑制剂治疗显著降低了机械过敏症,其影响持续至SCI后14天.
- 在受伤后的14-28天内,COX2的表达减少了.
结论:
- 胸部SCI诱导腰脊髓血管内皮细胞中的COX2表达,导致神经病痛.
- 抑制COX2显示出对治疗急性SCI诱导的神经病痛的显著治疗潜力.
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