Endothelin (ET), a vasoconstrictive peptide released from endothelial cells and smooth muscle cells (SMC), plays an important role in the occurrence and development of AS.

• 内皮素(ET)是血管内皮细胞和平滑肌细胞分泌的血管活性收缩肽,在AS的发生发展中发挥着重要作用。