| Value |
-50
kJ/mole
|
| Organism |
Rat Rattus norvegicus |
| Reference |
Ingwall JS, Balschi JA. Energetics of the Na(+) pump in the heart. J Cardiovasc Electrophysiol. 2006 May17 Suppl 1:S127-S133PubMed ID16686667
|
| Method |
Researchers used 23Na NMR spectroscopy to track the movement of Na+ across the sarcolemma in real time in the ischemic (zero flow) rat heart. |
| Comments |
In the normal beating myocardium, [Na+]i increases as the DeltaG~ATP falls below the threshold value (~-50 kJ/mole) needed to maintain normal Na homeostasis. |
| Entered by |
Uri M |
| ID |
103967 |