But it is still not clear whether VNP has direct influences on the growth of cardiac myocytes and fibroblasts independent on its effects on after load.

• VNP抑制心室肥厚的作用，除了通过降低心脏后负荷的间接机制，是否对心肌细胞、心成纤维细胞的生长有直接作用，目前尚不清楚。