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神经肽Y对大鼠松果体褪黑素和去甲肾上腺素释放的体外作用。

In vitro effect of neuropeptide Y on melatonin and norepinephrine release in rat pineal gland.

作者信息

Vacas M I, Sarmiento M I, Pereyra E N, Etchegoyen G S, Cardinali D P

机构信息

Departamento de Fisiología, Facultad de Medicina, UBA, Buenos Aires, Argentina.

出版信息

Cell Mol Neurobiol. 1987 Sep;7(3):309-15. doi: 10.1007/BF00711307.

Abstract
  1. To study neuropeptide Y (NPY) effect on melatonin production, rat pineal explants were incubated for 6 hr with 10-1,000 nM NPY in the presence or absence of 10 microM norepinephrine (NE). Melatonin content in the pineal gland and media was measured by radioimmunoassay (RIA). 2. NPY (10-1,000 nM) increased melatonin production and, at 10 or 100 nM concentrations (but not 1,000 nM), enhanced NE stimulation of melatonin production. 3. NPY (1,000 nM) impaired 3H-labeled transmitter release induced by a K+ depolarizing stimulus in rat pineals incubated with 3H-NE. 4. These results suggest that NPY affects both pre- and postsynaptic pineal mechanisms.
摘要
  1. 为研究神经肽Y(NPY)对褪黑素分泌的影响,将大鼠松果体组织块在存在或不存在10微摩尔去甲肾上腺素(NE)的情况下,用10 - 1000纳摩尔的NPY孵育6小时。通过放射免疫分析(RIA)测定松果体和培养基中的褪黑素含量。2. NPY(10 - 1000纳摩尔)增加了褪黑素的分泌,并且在10或100纳摩尔浓度时(但不是1000纳摩尔),增强了NE对褪黑素分泌的刺激作用。3. 在与3H - NE一起孵育的大鼠松果体中,NPY(1000纳摩尔)损害了由K + 去极化刺激诱导的3H标记递质释放。4. 这些结果表明,NPY影响突触前和突触后松果体机制。

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Neuropeptide Y effects on pineal melatonin synthesis in the rat.
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Neuropeptide Y Regulates Sleep by Modulating Noradrenergic Signaling.神经肽 Y 通过调节去甲肾上腺素能信号调节睡眠。
Curr Biol. 2017 Dec 18;27(24):3796-3811.e5. doi: 10.1016/j.cub.2017.11.018. Epub 2017 Dec 7.

本文引用的文献

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Neuropeptide Y effects on pineal melatonin synthesis in the rat.
Neurosci Lett. 1987 Feb 24;74(2):158-62. doi: 10.1016/0304-3940(87)90142-x.

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