Measurement of endogenous Leucine enkephalin in canine caudate nuclei and hypothalami with high-performance liquid chromatography and field-desorption mass spectrometry.

Measurement of endogenous Leucine enkephalin in canine caudate nuclei and hypothalami with high-performance liquid chromatography and field-desorption mass spectrometry.
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用高效液相色谱和场解吸质谱法测量犬尾状核和下丘脑中的内源性亮氨酸脑啡肽。

DOI:
10.1016/0003-2697(82)90166-x
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发表时间:
1982
影响因子:
2.9
通讯作者:
Desiderio,DM
Desiderio,DM
中科院分区:
生物学4区
文献类型:
--
作者:
Yamada,S;Desiderio,DM

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首次使用保留神经肽整个分子结构完整性的技术测量脑组织中内源性亮氨酸脑啡肽的含量。场解吸质谱法能够测量犬尾状核和下丘脑中内源性、化学未衍生化的亮氨酸脑啡肽的皮摩尔量。高效液相色谱的最佳灵敏度和分辨率与场解吸质谱的最大分子特异性相结合,可测量狗脑尾状核和下丘脑中的脑啡肽。这种两种最新仪器方法的新颖组合为校准生物活性脑神经肽内源水平的放射免疫测定测量提供了坚实的分子基础。
For the first time, endogenous amounts of Leu-enkephalin are measured in brain tissue with a technique preserving integrity of the entire molecular structure of the neuropeptide. Field-desorption mass spectrometry enables measurement of picomole amounts of endogenous, chemically underivatized Leu-enkephalin in canine caudate nuclei and hypothalami. The optimal sensitivity and resolution of high-performance liquid chromatography is coupled with maximal molecular specificity of field-desorption mass spectrometry to measure enkephalins in caudate nuclei and hypothalami from dog brains. This novel combination of two recent instrumental methodologies provides a firm molecular basis for calibrating the radioimmunoassay measurement of endogenous levels of biologically active brain neuropeptides.
大鼠纹状体脑啡肽释放的表征
DOI: --
发表时间: 1981
影响因子: 4.7
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影响因子: 15
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