Previous studies indicate that vascular endothelial growth factor ( vegf ) has direct neurotrophic action and prevents ischemic neuronal injury ; it also can inhibit the outward delayed - rectifier potassium currents ( / k ) in the neurons 以往的研究结果显示血管内皮生长因子( vascularendothelialgrowthfactor ， vegf )具有直接的神经营养及神经细胞保护效应，并能抑制神经元的外向延迟整流钾电流( outwarddelayed - rectifierpotassiumcurrent ， i _ k ) 。
