Heart Physiology

This example provides us with the opportunity to share some physiological data on the heart


Figure 3
Figure 3:   1H NMR signal of the deoxy Mb proximal histidyl NH signal from rat myocardium.  The peak intensity of the peak at 79 ppm corresponds to the degree of cellular deoxygenation. The spectra are observed in  rat myocardium in situ:   A) control  B) dopamine stimulated  C) post dopamine stimulated  D)  left anterior descending (LAD) ligated heart.  
The deoxy Mb signal is detected only upon LAD ligation, indicating that the cellular pO2 is unperturbed in the other physiological states.