姚丹;吴昊;江敏;

• 1:上海海洋大学海洋生态与环境学院
• 2:上海海洋大学水产与生命学院
• 3:上海市水产养殖工程技术研究中心

摘要(Abstract)：

为探究全氟辛烷磺酸(PFOS)对水生动物肝脏的慢性毒性毒害机制,寻找其肝脏慢性毒性相关的潜在标志物,运用气相色谱-质谱联用仪代谢组学方法研究暴露于PFOS中斑马鱼肝脏内源性代谢物的变化,寻找显著性差异代谢物及相关通路。实验分为4组:对照组及PFOS浓度分别为10、100、250μg·L~(-1)的实验组,每组20尾斑马鱼,实验时长40 d。结果显示,与对照组相比,PFOS浓度为10μg·L~(-1)的斑马鱼肝脏中筛选出4种发生显著性变化的代谢物,分别为牛磺酸、磷酸乙酰胺、β-D-葡萄糖、油酸,涉及4条代谢通路,即牛磺酸和亚牛磺酸代谢、鞘脂代谢、甘油磷脂代谢、糖酵解或葡萄糖生成。100μg·L~(-1)浓度组的斑马鱼肝脏中筛选出5种,包括牛磺酸、β-D-葡萄糖、棕榈酸、油酸、胆固醇,涉及5条代谢通路,即原代胆汁酸生物合成、牛磺酸和亚牛磺酸代谢、类固醇生物合成、类固醇激素生物合成、糖酵解或葡萄糖生成。250μg·L~(-1)浓度组的斑马鱼肝脏中筛选出5种,即牛磺酸、β-D-葡萄糖、乳酸、甘油-3-磷酸、磷酸乙酰胺,涉及5条代谢通路:牛磺酸和亚牛磺酸代谢、甘油磷脂代谢、甘油脂代谢、鞘脂代谢、糖酵解或葡萄糖生成。根据筛选出的差异代谢物生理功能和其涉及代谢通路分析,推测PFOS主要通过影响牛磺酸和亚牛磺酸代谢、糖酵解或葡萄糖生成及一些脂类代谢从而对斑马鱼肝脏产生毒性效应,其中牛磺酸、葡萄糖与油酸这3种代谢物可作为斑马鱼受PFOS胁迫肝脏代谢异常的潜在标记物。

关键词(KeyWords)： PFOS;斑马鱼;代谢组学;潜在标记物

Abstract:

Keywords:

基金项目(Foundation): 上海市产业技术体系建设项目(沪农科产字(2014)第5号);; 上海市教委重点学科建设项目(No.J50701);; 上海市高校知识服务平台项目(No.ZF1206)

作者(Author): 姚丹;吴昊;江敏;

Email:

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