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用超极化[1-13C]丙酮酸和 13C / 31P NMR波谱研究分离灌注小鼠心脏中的心脏代谢
JoVE Journal
Biologia
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JoVE Journal Biologia
Investigating Cardiac Metabolism in the Isolated Perfused Mouse Heart with Hyperpolarized [1-13C]Pyruvate and 13C/31P NMR Spectroscopy
DOI:

14:56 min

April 21, 2023

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Capítulos

  • 00:03Introduction
  • 01:17Krebs-Henseleit Buffer Preparation
  • 01:45Perfusion System Preparation
  • 02:29Calibration and Preparation of the NMR Spectrometer for Acquisition
  • 03:22Animal Preparation, Surgical Procedure, and Perfusion of the Heart in the NMR Tube
  • 09:23Acquiring Data for Cardiac Energetics and pH
  • 10:09DNP Spin Polarization and Dissolution
  • 11:25Hyperpolarized 13C Spectroscopy
  • 12:07Representative Results
  • 14:40Conclusion

Summary

Tadução automática

我们描述了一种实验装置,用于在连续灌注模式下向分离的灌注小鼠心脏施用超极化 13种C标记代谢物。专用的 13C-NMR采集方法能够实时定量代谢酶活性,多参数 31P-NMR分析可以测定组织ATP含量和pH值。

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