Brain barrier tissues: end organs for atriopeptins.

Brain barrier tissues: end organs for atriopeptins.
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脑屏障组织:心房肽的终末器官。

DOI:
10.1126/science.2879355
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发表时间:
1987
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Nathanson,JA
Nathanson,JA
中科院分区:
--
文献类型:
--
作者:
Steardo,L;Nathanson,JA

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脑水肿和其他水平衡紊乱的病理生理学,涉及在血液和脑界面的屏障组织知之甚少。目前的实验表明,这些屏障组织含有心房肽的受体和第二信使系统,最近发现的心脏肽参与外周水调节。他们还表明,心房肽可以改变脑脊液的生产率。由于血脑屏障和血脑脊液屏障参与中枢神经系统中的正常水运动,因此这些研究表明脑屏障组织可能是心房肽的重要终末器官,并且心房肽可用于治疗中枢神经系统中的水平衡障碍。在这些实验中使用了从脉络膜上皮获得的分离的、纯化的心房肽受体细胞群。该细胞群可为研究心房肽发挥作用的细胞内生化机制提供有价值的模型系统。
Little is known about the pathophysiology of cerebral edema and other disturbances of water balance that involve the barrier tissues at the interface of blood and brain. The present experiments show that these barrier tissues contain receptors and second messenger systems for atriopeptins, recently identified cardiac peptides involved in peripheral water regulation. They also show that atriopeptins can alter the rate of cerebrospinal fluid production. Because the blood-brain and blood-cerebrospinal fluid barriers are involved in normal water movements in the central nervous system, these studies suggest that brain barrier tissues may be important end organs for the atriopeptins and that atriopeptins could have therapeutic application to disorders of water balance in the central nervous system. An isolated, purified population of atriopeptin receptor cells, obtained from choroid epithelium, was used in these experiments. This cell population may provide a valuable model system for investigating the intracellular biochemical mechanisms through which atriopeptins exert their actions.
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