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生物转化

生物转化(biotransformation)又称代谢转化(metabolic transformation),是化合物在体内经酵素催化或非酵素作用下所发生的生化修饰过程。生物转化能借由全细胞、其裂解液或纯化后的酵素来进行[1]。在药理学,也指药物在发挥药效后要排出体外时,所产生的结构改变。

毒性化学物质若是水溶性物质,则可由肾脏排出。若为脂溶性物质,则需要经过代谢过程后才能够由肾脏排出。目的是将非极性的物质,转变成为极性的物质;脂溶性高的转化成脂溶性低的物质,以便被肾脏过滤或分泌排出去。而肝脏是体内负责生物转化作用最主要的器官。

参考网站

  1. ^ Biotransformation. IUPAC Goldbook. [14 February 2022]. (原始内容存档于2022-02-14). 
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生物转化
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