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Application of the concept of continuous dopaminergic stimulation for the management of Parkinson’s disease

机译:多巴胺能持续刺激概念在帕金森氏病治疗中的应用

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摘要

Continuous dopaminergic stimulation (CDS) is a prominent therapeutic concept for the treatment of Parkinson’s disease (PD), which proposes that continuous brain dopamine-receptor stimulation, rather than intermittent doses of oral L-dopa, prevents or manages L-dopa-induced dyskinesias (LIDs). In the normal situation, dopaminergic neurons in the substantia nigra pars compacta fire tonically to keep the dopamine receptor stimulation at a steady-state level. But when the dopaminergic pathway is impaired, the dopamine receptor stimulation becomes intermittent or pulsatile. This pulsatile stimulation causes a series of gene and protein changes in striatal neurons, leading to alterations in the fi ring patterns of basal ganglia neurons that result in LIDs. Studies in animal models and clinical trials of PD have shown that approaches providing CDS, currently including patches, extended-release formulations of L-dopa or dopamine agonists, continuous delivery of apomorphine and duodenal L-dopa infusion, are associated with a decreased risk of LIDs. In this review, we summarize both preclinical and clinical evidence for the five methods that may provide CDS in theory and compare the advantages and disadvantages of these methods.
机译:持续多巴胺能刺激(CDS)是治疗帕金森氏病(PD)的重要治疗概念,它提出,连续脑多巴胺受体刺激而非间歇性口服L-多巴会预防或控制L-多巴引起的运动障碍。 (LID)。在正常情况下,黑质致密部中的多巴胺能神经元会音调发射,以将多巴胺受体刺激保持在稳态水平。但是,当多巴胺能途径受损时,多巴胺受体刺激会变得间歇性或搏动性。这种搏动性刺激导致纹状体神经元发生一系列基因和蛋白质变化,导致基底神经节神经元的放电模式改变,从而导致LID。动物模型的研究和PD的临床试验表明,提供CDS的方法(目前包括贴剂,L-多巴或多巴胺激动剂的缓释制剂,阿扑吗啡的持续递送和十二指肠L-多巴的输注)与降低风险有关。 LID。在这篇综述中,我们总结了可能在理论上提供CDS的五种方法的临床前和临床证据,并比较了这些方法的优缺点。

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