Memory-enhancing properties of sleep depend on the oscillatory amplitude of norepinephrine.
Memory-enhancing properties of sleep depend on the oscillatory amplitude of norepinephrine.
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睡眠增强记忆的特性取决于去甲肾上腺素的振荡幅度
DOI:
10.1038/s41593-022-01102-9
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发表时间:
2022-08
影响因子:
25
通讯作者:
Nedergaard, Maiken
中科院分区:
文献类型:
--
作者:
Kjaerby, Celia;Andersen, Mie;Hauglund, Natalie;Untiet, Verena;Dall, Camilla;Sigurdsson, Bjorn;Ding, Fengfei;Feng, Jiesi;Li, Yulong;Weikop, Pia;Hirase, Hajime;Nedergaard, Maiken
Sleep has a complex microarchitecture, encompassing micro-arousals, sleep spindles, and transitions between sleep stages. Fragmented sleep impairs memory consolidation, whereas spindle- and delta-rich NREM sleep and REM sleep promote it. Yet, the relationship between micro-arousals and memory-promoting aspects of sleep remains unclear. We here use fiber photometry in mice to examine how release of the arousal mediator, norepinephrine (NE), shapes sleep microarchitecture. We show that micro-arousals are generated in a periodic pattern during NREM sleep, riding on the peak of locus coeruleus-generated infraslow oscillations of extracellular NE, whereas descending phases of NE oscillations drive spindles. The amplitude of NE oscillations is crucial for shaping sleep microarchitecture related to memory performance: prolonged descent of NE promotes spindle-enriched intermediate state and REM sleep but also associates with awakenings, whereas shorter NE descents uphold NREM sleep and micro-arousals. Thus, the NE oscillatory amplitude may be a target for improving sleep in sleep disorders.
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影响因子:
13.6
作者:
Lecci S;Fernandez LM;Weber FD;Cardis R;Chatton JY;Born J;Lüthi A
通讯作者:
Lüthi A
影响因子:
2.7
作者:
GIUDITTA, A;AMBROSINI, MV;VESCIA, S
通讯作者:
VESCIA, S
影响因子:
3.7
作者:
Eschenko, Oxana;Sara, Susan J.
通讯作者:
Sara, Susan J.
影响因子:
3.6
作者:
Gervasoni, D;Panconi, E;Luppi, PH
通讯作者:
Luppi, PH
影响因子:
3.2
作者:
Gais, Steffen;Rasch, Bjoern;Born, Jan
通讯作者:
Born, Jan