mild aortic stenosis , induced by banding the ascending aorta , forcing a transaortic pressure gradient of 25 mm hg , caused an elevation in left ventricular muosin atpase , whereas severe aortic banding , brought about by creating a transaortic pressure gradient of 55 mm hg , never caused an elevation in left ventricular myosin enzymatic vmax values , but , like severe pulmonic banding , caused a decrease in k+- and ca2+- activated myosin activities .
C0003956
ascending aorta
C0003483
aortic