河豚毒素对钠通道的影响及其可能的镇痛机制

Influence of tetrodotoxin on sodium channel and the possible mechanism of the analgesic effect

河豚毒素为强效钠通道阻滞剂 ,它可通过阻断钠通道而影响细胞膜动作电位的产生。其中河豚毒素耐受性钠通道在损伤组织中的高表达为寻找新一代有效镇痛药提供了新靶标。

Tetrodotoxin(TTX) is a potent sodium channel blocker. It can affect the generation of action potentials of cell membranes by blocking sodium channel. Damaged tissues express a Tetrodotoxin resistant(TTX R) Na + current which provides a potential target for therapeutic intervention in a range of pain states. We summarize the influence of tetrodotoxin on sodium channel and the possible mechanism of the analgesic effect.