为了研究低氧预处理 (ＨＰＣ)对心肌的保护作用 ,作者应用31Ｐ -ＮＭＲ图谱技术 ,在模拟Ｌａｎｇｅｎｄｏｒｆｆ离体灌流大鼠心脏的正常生理条件下 ,跟踪心肌高能磷酸化合物含量的动态变化。结果发现 :在 30分钟低氧期ＰＣｒ、ＡＴＰ相对含量及ＰＣｒ/ ｐｉ值逐渐减小 ,但ＨＰ To investigate the protective effect of hypoxic preconditioning (HPC) on myocardium, the authors used 31P-NMR spectroscopy to track the dynamic changes of myocardial high-energy phosphoric acid (phosphorous-rich acid) content under the normal physiological conditions of isolated Langendorff perfused rat heart. The results showed that the relative content of PCr and the content of PCr / pi gradually decreased in 30 minutes of hypoxia, but the content of HP