Activation Energy of Ventricular Contraction in Anionically Modified Solutions

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Science  05 Dec 1958:
Vol. 128, Issue 3336, pp. 1436-1437
DOI: 10.1126/science.128.3336.1436


The activation energy of ventricular contraction and relaxation in chloride and nitrate-Ringer's solution was studied on the driven rat ventricle strip by measurement of the specific contraction and relaxation velocities over a 17°C range of temperature. Nitrate ion produced a small but significant reduction in the activation energy of contraction.