与斑马鱼共眠

IF 21.2 1区 医学 Q1 NEUROSCIENCES
George Andrew S. Inglis
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引用次数: 0

摘要

研究人员推测,睡眠有助于突触修剪,以重新平衡清醒时形成的神经元连接。在《自然》杂志最近的一项研究中,Suppermpool 等人追踪了睡眠对幼年斑马鱼单个构造神经元突触数量的影响。作者使用荧光标记的突触后支架蛋白 PSD95 估算了突触的数量,并在 24 小时的光暗周期中以三个间隔对斑马鱼进行了成像。一般来说,突触数量在光照周期(鱼可能处于清醒状态)增加,在黑暗周期(鱼可能处于睡眠状态)减少。然而,这种模式在不同的构造神经元亚型之间存在差异,3型构造神经元在光周期中的突触平均减少,而在暗周期中的突触平均增加。虽然突触丢失的速度通常与睡眠时间长短相关,但因褪黑素或氯尼丁处理而在白天睡得更多的鱼的突触数量并没有发生显著变化。此外,在暗周期开始时被阻止入睡的鱼类也没有表现出睡眠时间与突触数量变化之间的相关性。总之,这些结果表明,睡眠可引发突触丢失,尽管这一过程是以细胞类型特异性的方式调节的,并受到睡眠剥夺等压力的影响:原始参考文献:Nature https://doi.org/10.1038/s41586-024-07367-3 (2024)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sleeping with the zebrafishes
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来源期刊
Nature neuroscience
Nature neuroscience 医学-神经科学
CiteScore
38.60
自引率
1.20%
发文量
212
审稿时长
1 months
期刊介绍: Nature Neuroscience, a multidisciplinary journal, publishes papers of the utmost quality and significance across all realms of neuroscience. The editors welcome contributions spanning molecular, cellular, systems, and cognitive neuroscience, along with psychophysics, computational modeling, and nervous system disorders. While no area is off-limits, studies offering fundamental insights into nervous system function receive priority. The journal offers high visibility to both readers and authors, fostering interdisciplinary communication and accessibility to a broad audience. It maintains high standards of copy editing and production, rigorous peer review, rapid publication, and operates independently from academic societies and other vested interests. In addition to primary research, Nature Neuroscience features news and views, reviews, editorials, commentaries, perspectives, book reviews, and correspondence, aiming to serve as the voice of the global neuroscience community.
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