Neurology:白天过度嗜睡与Lewy病理学扩张

2019-09-03 xing.T MedSci原创

由此可见,EDS与PD之间的关联包含与广泛的LP扩展之间的关系。新皮质可能特别容易受到睡眠障碍与a-突触核蛋白错误折叠聚集和LP形成之间不利关系的影响。

虽然白天过度嗜睡(EDS)可能早于帕金森病(PD)的临床诊断,但其与潜在的PD发病机制之间的关联尚不清楚。近日,神经病学领域权威取杂志Neurology上发表了一篇研究文章,研究人员旨在明确EDS是否与脑路易体病理学(LP)相关,这是PD发病机制的标志。 

LP的鉴定是基于211名男性样本中多个脑区突触核蛋白染色。1991年至1999年,当参与者年龄为72-97岁时,在临床检查中收集了EDS数据。

虽然相比于无LP的个体,LP个体EDS更常见(p=0.034),但在新皮质区域中关联变得更强。当LP限于嗅球、脑干和基底前脑(Braak 1-4期)时,EDS的发生率为10%(4/40),而没有LP的个体为17.5%(20/114)(p=0.258)。相比之下,与没有LP的个体相比,当LP累及前扣带回、脑岛中间皮层和中额叶、中颞叶和下顶叶新皮质时,EDS频率加倍(36.7%[11/30],p=0.023)(Braak 5期)。随着进一步累及到初级运动和感觉新皮质(Braak 6期),EDS频率增加三倍(51.9%[14/27],p<0.001)。在调整年龄和其他协变量后,调查结果与睡眠相关的特征相似,并且持续存在。

由此可见,EDS与PD之间的关联包含与广泛的LP扩展之间的关系。新皮质可能特别容易受到睡眠障碍与a-突触核蛋白错误折叠聚集和LP形成之间不利关系的影响。 

原始出处:

Robert D. Abbott,et al.Excessive daytime sleepiness and topographic expansion of Lewy pathology.Neurology.2019.https://doi.org/10.1212/WNL.0000000000008241

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    2019-11-16 yinhl1978
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    2019-10-11 lsj637
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    2019-09-05 jktdtl

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