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Small-conductance calcium-activated potassium (SK) channels in the amygdala mediate pain-inhibiting effects of clinically available riluzole in a rat model of arthritis pain

机译:杏仁核中的小电导钙激活钾(SK)通道介导临床可获得的利鲁唑在关节炎大鼠模型中的止痛作用

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摘要

BackgroundArthritis pain is an important healthcare issue with significant emotional and affective consequences. Here we focus on potentially beneficial effects of activating small-conductance calcium-activated potassium (SK) channels in the amygdala, a brain center of emotions that plays an important role in central pain modulation and processing. SK channels have been reported to regulate neuronal activity in the central amygdala (CeA, output nucleus). We tested the effects of riluzole, a clinically available drug for the treatment of amyotrophic lateral sclerosis, for the following reasons. Actions of riluzole include activation of SK channels. Evidence in the literature suggests that riluzole may have antinociceptive effects through an action in the brain but not the spinal cord. Mechanism and site of action of riluzole remain to be determined. Here we tested the hypothesis that riluzole inhibits pain behaviors by acting on SK channels in the CeA in an arthritis pain model.
机译:背景技术关节炎疼痛是重要的医疗保健问题,具有重大的情感和情感影响。在这里,我们关注激活杏仁核中小传导性钙激活钾(SK)通道的潜在有益作用,杏仁核是情绪的大脑中枢,在中央疼痛的调节和处理中起着重要作用。据报道,SK通道可调节杏仁核中央的神经元活动(CeA,输出核)。由于以下原因,我们测试了利鲁唑(一种可用于治疗肌萎缩性侧索硬化症的临床可用药物)的疗效。利鲁唑的作用包括激活SK通道。文献中的证据表明,利鲁唑可能通过对大脑的作用而不是对脊髓的作用具有抗伤害作用。利鲁唑的作用机理和作用部位尚待确定。在这里,我们测试了假说利鲁唑通过在关节炎疼痛模型中作用于CeA中的SK通道来抑制疼痛行为。

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