parasympathin

例句：

1. 1.The parasympathin levels in the blood are elevated during stress.
   压力下，血液中的副交感神经递质水平升高。
2. 2.Parasympathin has been shown to have anti-inflammatory effects.
   研究表明，副交感神经递质具有抗炎作用。
3. 3.The researchers discovered a new pathway for the release of parasympathin.
   研究人员发现了一种新的释放副交感神经递质的途径。