Neuronal regulation of the blood-brain barrier and neurovascular coupling.
Neuronal regulation of the blood-brain barrier and neurovascular coupling.
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DOI:
10.1038/s41583-020-0322-2
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发表时间:
2020-08
期刊:
影响因子:
--
通讯作者:
Gu C
中科院分区:
文献类型:
--
作者:
Kaplan L;Chow BW;Gu C
To continuously process neural activity underlying sensation, movement, and cognition, the central nervous system requires a homeostatic microenvironment that is not only enriched in nutrients to meet its high metabolic demands but also devoid of toxins that might harm the sensitive neural tissues. This highly regulated microenvironment is made possible by two unique features of CNS vasculature absent in the peripheral organs. First, the blood–blood barrier, which partitions the circulating blood from the CNS, acts as a gatekeeper to facilitate the selective trafficking of substances between the blood and parenchyma. And second, neurovascular coupling ensures that, following local neural activation, regional blood flow is increased to quickly supply more nutrients and remove metabolic waste. Here, we review how neural and vascular activity act on one another with regards to these two properties. The homeostatic CNS environment is maintained by the function of the blood–blood barrier (BBB) and neurovascular coupling (NVC). Kaplan, Chow and Gu describe how neural and vascular activity act on one another with regard to BBB and NVC.
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