毒理性
鹅膏蕈碱是一种来自百合科植物的甾体衍生生物碱,它通过消除钠离子通道的失活作用而作为一种神经毒素。它与膜内受体位点2结合,并增加细胞内Ca2+浓度。它通过优先与激活的Na+通道结合,导致持续的激活,从而增加神经兴奋性。(维基百科)鹅膏蕈碱通过激活动作电位Na+离子通道的作用是时间依赖性和浓度依赖性的,并且是完全可逆的。(A15424)
Veratridine is a steroid-derived alkaloid from plants in the Liliaceae family that functions as a neurotoxin by abolishing inactivation of sodium ion channels. It binds to intramembrane receptor site 2 and increases intracellular Ca2+ concentration. It acts by preferentially binding to activated Na+ channels causing persistent activation that leads to increased nerve excitability. (Wikipedia) The activation of the action potential Na+ ionophore by veratridine is time- and concentrationdependent and completely reversible. (A15424)
来源:Toxin and Toxin Target Database (T3DB)