P2X receptor agonist activated currents of SCG neurons were greatly potentiated after myocardial ischemia; A-317491 could inhibit the currents activated by P2X receptors agonist.

• 心肌缺血后P2X受体激动剂在SCG神经元激活电流增大,P2X3受体特异性拮抗剂A-317491可抑制P2X受体激动剂激活的电流。