离子透入剂(Ionophores)是可以移动的阳离子载体,并具有结合和转运有机胺的能力。某些离子透入剂能浓集和转运Ca~(++),因而大量研究集中于其对哺乳动物心肌的作用。早期的研究主要针对钙离子透入剂Ro.2-2985(X5374),它可引起总外周阻力降低而血压却稍升高,说明它使主动脉腔径缩小而伴有扩张性增 Ionophores are mobile, cationic carriers and have the ability to bind and transport organic amines. Certain iontophic agents can concentrate and transport Ca ~ (++), and numerous studies have focused on their effects on mammalian myocardium. Early studies focused on calcium iontophoresis agent Ro.2-2985 (X5374), which can cause a decrease in total peripheral resistance and a slight increase in blood pressure, suggesting that it narrows the aortic lumen with dilatation