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NREM sleep transient events in fronto-temporal dementia: beyond sleep stage architecture.
Archives Italiennes De Biologie ( IF 0.8 ) Pub Date : 2016-1-9 , DOI: 10.12871/0003982920152346
Michelangelo Maestri 1 , Luca Carnicelli , Nicholas-Tiberio Economou , Anastasios Bonakis , Thomas Paparrigopoulos , Sokratis T Papageorgiou , Filippo Sean Giorgi , Elisa Di Coscio , Gloria Tognoni , Raffaele Ferri , Ubaldo Bonuccelli , Enrica Bonanni
Affiliation  

Frontotemporal dementia (FTD) is increasingly becoming recognized as a major cause of early onset (<65 years) neurodegenerative dementia. Although sleep disorders significantly impair patients' and caregivers' quality of life in neurodegenerative diseases, polysomnographic data in FTD patients are scarce in literature. Aim of our study was to investigate sleep microstructure in FTD, by means of Cyclic Alternating Pattern (CAP), in a group of ten behavioral variant FTD patients (6 M, 4 F; mean age 61.2±7.3 years; disease duration: 1.4±0.7 years) and to compare them with cognitively intact healthy elderly. Sleep in FTD patients was altered at different levels, involving not only the conventional sleep stage architecture parameters (total sleep time, single stage percentage, NREM/REM cycle organization), but also microstructure. FTD subjects showed CAP disruption with decreased slow wave activity related phases (A1 index, n/h:14.5±6.8 vs 38.8±6.6; p<.001) and increased arousal-related fast CAP components (A2 index 22.9±8.2 vs 11.6±3.7; p=.006; A3 index 41.9±20.7 vs 13.0±6.5; p=.002). Several correlations between sleep variables and neuropsychological tests were found. Sleep impairment in FTD may be specifically related to the specific frontal lobe involvement in the neurodegenerative process. The pattern of alterations seems somewhat peculiar, probably due to the anatomical distribution of the neurodegenerative process with a major impact on frontal lobe generated sleep transients, and a substantial sparing of phenomena related to the posterior cortex.

中文翻译:

额颞痴呆中的NREM睡眠短暂事件:超出睡眠阶段结构。

额颞痴呆(FTD)越来越被认为是早发性(<65岁)神经变性痴呆的主要原因。尽管睡眠障碍会严重损害神经退行性疾病患者和护理人员的生活质量,但文献中缺乏FTD患者的多导睡眠图数据。我们研究的目的是通过循环交替模式(CAP)研究一组10名行为变异性FTD患者(6 M,4 F;平均年龄61.2±7.3岁;病程:1.4±)的FTD睡眠微观结构0.7岁),并将其与认知完好的健康老年人进行比较。FTD患者的睡眠发生了不同程度的改变,不仅涉及常规睡眠阶段的结构参数(总睡眠时间,单阶段百分比,NREM / REM周期组织),还涉及微观结构。FTD受试者显示CAP破坏,其慢波活动相关阶段减少(A1指数,n / h:14.5±6.8 vs 38.8±6.6; p <.001),而觉醒相关的快速CAP成分增加(A2指数22.9±8.2 vs 11.6± 3.7; p = .006; A3指数41.9±20.7与13.0±6.5; p = .002)。发现了睡眠变量与神经心理学测试之间的几种相关性。FTD中的睡眠障碍可能与神经退行性过程中特定的额叶受累有关。这种变化的模式似乎有些特殊,这可能是由于神经退行性过程的解剖学分布,对额叶产生的睡眠瞬变具有重大影响,并且与后皮质相关的现象很少出现。001)和与唤醒相关的快速CAP组件增加(A2指数22.9±8.2对11.6±3.7; p = .006; A3指数41.9±20.7对13.0±6.5; p = .002)。发现了睡眠变量与神经心理学测试之间的几种相关性。FTD中的睡眠障碍可能与神经退行性过程中特定的额叶受累有关。这种变化的模式似乎有些特殊,这可能是由于神经退行性过程的解剖学分布,对额叶产生的睡眠瞬变具有重大影响,并且与后皮质相关的现象很少出现。001)和与唤醒相关的快速CAP组件增加(A2指数22.9±8.2对11.6±3.7; p = .006; A3指数41.9±20.7对13.0±6.5; p = .002)。发现了睡眠变量与神经心理学测试之间的几种相关性。FTD中的睡眠障碍可能与神经退行性过程中特定的额叶受累有关。这种变化的模式似乎有些特殊,这可能是由于神经退行性过程的解剖学分布,对额叶产生的睡眠瞬变具有重大影响,并且与后皮质相关的现象很少出现。FTD中的睡眠障碍可能与神经退行性过程中特定的额叶受累特别相关。这种变化的模式似乎有些特殊,这可能是由于神经退行性过程的解剖学分布,对额叶产生的睡眠瞬变具有重大影响,并且与后皮质相关的现象很少出现。FTD中的睡眠障碍可能与神经退行性过程中特定的额叶受累有关。这种变化的模式似乎有些特殊,这可能是由于神经退行性过程的解剖学分布,对额叶产生的睡眠瞬变具有重大影响,并且与后皮质相关的现象很少出现。
更新日期:2020-08-21
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