問題詳情

69.Ranolazine為一新穎抗心絞痛藥物，其作用機轉為何？
(A)抑制late component of the Na+current
(B)活化rapid component of the delayed rectifier K+current
(C)nitric oxide donor
(D)alpha-1 adrenergic receptor blocker

參考答案

答案：A
難度：非常困難0
統計：A(0),B(1),C(0),D(0),E(0)

用户評論

【用戶】Chris

【年級】高三下

【評論內容】 Ranolazine is a newer antianginal drug that appears to act by reducing a late sodium current (I  Na  ) that facilitates calcium entry via the sodium-calcium exchanger (see Chapter 13). The resulting reduction  in  intracellular  calcium  concentration  reduces  cardiac contractility and work.

【用戶】Chris

【年級】高三下

【評論內容】 Ranolazine is a newer antianginal drug that appears to act by reducing a late sodium current (I  Na  ) that facilitates calcium entry via the sodium-calcium exchanger (see Chapter 13). The resulting reduction  in  intracellular  calcium  concentration  reduces  cardiac contractility and work.