To study the effect of chitosan on delayed outward potassium current(IK) in single ventricular myocytes of guinea pig and investigate its antiarrhythmic mechanism from ion channel view.
研究壳聚糖对豚鼠单一心室肌细胞延迟外向钾电流（I_k）的作用，从离子通道角度初步探讨其作用机理。
2
Ion channel activity had the character of voltage-dependence. Some cells, which did not exhibit sodium currents exhibited, delayed rectifier potassium currents.
并且离子通道活动具有明显的电压依赖性，在没有记录到钠电流的细胞记录到延迟整流钾电流。
3
AIM: To explore the change of delayed rectifier potassium channel (KV) activity in alveolar macrophages (AM) in chronic obstructive pulmonary disease (COPD) rats.