Relaxation of clasp and sling fibers is related to L-NNA,TTX,and sodium nitroprusside,and can be mediated by nitric oxide.

• 在LES离体实验状态下,EFS诱导钩状纤维和套索纤维的舒张与L-NNA、TTX及硝普钠有关,可能是由一氧化氮介导的。