Simulation study on the balance of glycolytic ATP production and oxidative phosphorylation in embryonic and adult ventricular cells

Here, we integrated various characteristics of fetal ventricular cells based on a mathematical model and predicted the contribution of each characteristic to maintenance of intracellular ATP concentration and sarcomere contraction under anoxic conditions. Our simulation results showed that higher glycogen content, higher hexokinase activity, and lower creatine concentration helped to prolong the time that contraction of ventricular cells was maintained under anoxic conditions. The integrated model enabled us to quantitatively assess the contributions of factors related to energy metabolism in ventricular cells.