Astrocyte regulation of sleep circuits: experimental and modeling perspectives.

Astrocyte regulation of sleep circuits: experimental and modeling perspectives.
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DOI:
10.3389/fncom.2012.00065
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发表时间:
2012
影响因子:
3.2
通讯作者:
Halassa MM
Halassa MM
中科院分区:
医学4区
文献类型:
--
作者:
Fellin T;Ellenbogen JM;De Pittà M;Ben-Jacob E;Halassa MM

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整合在神经回路中,星形胶质细胞最近被证明可以调节被认为介导睡眠功能的大脑节律。实验证据表明,星形胶质细胞对单个突触的局部影响转化为对神经元网络和行为的全局调节。我们讨论这些发现的背景下,目前的概念模型的睡眠产生和功能,其中每一个历史上都集中在神经机制。我们强调的影响和挑战,这些结果从概念和计算的角度。我们进一步提供了关于这些数据如何扩展我们对星形胶质细胞特性和睡眠功能的知识的建模方向。鉴于我们对睡眠期间局部细胞活动如何导致大脑功能结果的理解不断发展,对星形胶质细胞对这些动力学的贡献的进一步机制和理论理解无疑将具有巨大的基础和转化益处。
Integrated within neural circuits, astrocytes have recently been shown to modulate brain rhythms thought to mediate sleep function. Experimental evidence suggests that local impact of astrocytes on single synapses translates into global modulation of neuronal networks and behavior. We discuss these findings in the context of current conceptual models of sleep generation and function, each of which have historically focused on neural mechanisms. We highlight the implications and the challenges introduced by these results from a conceptual and computational perspective. We further provide modeling directions on how these data might extend our knowledge of astrocytic properties and sleep function. Given our evolving understanding of how local cellular activities during sleep lead to functional outcomes for the brain, further mechanistic and theoretical understanding of astrocytic contribution to these dynamics will undoubtedly be of great basic and translational benefit.
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