sarcolemmal preparations from hypertrophied hearts from the 22-wk-old spontaneously hypertensive rats exhibited changes in na+-ca2+ exchange and ca2+-pump activities ( similar to those observed in banded hearts ) , whereas the na+-k+-atpase activity decreased , [ 3h ] nitrendipine binding increased , and phospholipid contents were not different .
C0018800
hypertrophied hearts
C0018787
hearts