因谷氨酸代谢异常，过度释放和对突触后受体的高频刺激，引起了兴奋性神经毒性，导致神经元死亡。
The abnormal metabolism and excess release of Glutamic acid as well as high-frequency stimulation to the postsynaptic receptor induce excitatory neural toxicity, resulting in the death of neurons.
尤其，因具特有之低毒性及优越生物可分解性，使其更适合于食品、化妆品、医药等产业之应用。
Particularly, biosurfactants are applied to the food, cosmetics, and medical industries because they have extremely low toxicity and high biodegradability.
结论布比卡因对PC 12细胞具有浓度依赖性的细胞毒性作用。
Conclusion Bupivacaine is cytotoxic to PC12 cells in a concentration - dependent manner.
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