既往,作者曾报导四季青叶中所含之原儿茶醛具有明显增加猫冠状窦流量的作用,心肌氧耗量虽亦增加,但低于流量之增加,如以小剂量储血池内投药,可降低狗冠脉左旋支及下肢血管的阻力,静脉注射可明显降低 In the past, the authors reported that protocatechuic aldehyde contained in the leaves of E. brevifolia significantly increased cat coronary sinus flow, and myocardial oxygen consumption also increased, but was lower than the increase in flow rate, such as the administration of low-dose reservoirs. It can reduce the resistance of left circumflex coronary artery and lower limb blood vessels in dogs. Intravenous injection can significantly reduce