食品科学 ›› 2020, Vol. 41 ›› Issue (3): 127-137.doi: 10.7506/spkx1002-6630-20181016-164

• 营养卫生 • 上一篇    下一篇

植物甾醇酯对非酒精性脂肪肝大鼠部分血清代谢物的影响

欧阳鹏凌,管玘,曲丹,丁信文,杨丽,宋立华   

  1. (1.上海交通大学农业与生物学院,上海 200240;2.上海市第七人民医院营养科,上海 200137;3.上海交通大学陆伯勋食品安全研究中心,上海 200240)
  • 出版日期:2020-02-15 发布日期:2020-02-26
  • 基金资助:
    上海市卫计委青年项目(201640256);巴斯夫Newtrition亚洲研究基金项目(14H100000490)

Effect of Phytosterol Esters on Selected Serum Metabolites of Rats with Non-alcoholic Fatty Liver Disease (NAFLD)

OUYANG Pengling, GUAN Qi, QU Dan, DING Xinwen, YANG Li, SONG Lihua   

  1. (1. College of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Department of Nutrition, Shanghai the Seventh People’s Hospital, Shanghai 200137, China; 3. Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, China)
  • Online:2020-02-15 Published:2020-02-26

摘要: 在前期研究的基础上,通过分析植物甾醇酯(phytosterol esters,PSE)对高脂饮食诱导的非酒精性脂肪肝(non-alcoholic fatty liver disease,NAFLD)大鼠血清中部分小分子代谢物的变化,进一步了解PSE发挥预防NAFLD作用的代谢分子机制。利用高脂饮食诱导建立NAFLD大鼠模型的同时,PSE干预组分别灌胃低(0.05 g/100 g mb·d)、高剂量(0.10 g/100 g mb·d)PSE强化牛奶,采用超高效液相色谱联用四极杆串联飞行时间质谱(ultra performance liquid chromatography-quadrupole-tandem time-of-flight mass spectrometry,UPLC-Q-TOF-MS)分析大鼠血清中的小分子代谢物,通过Progenesis QI v2.3软件进行无监督和有监督的模式判别,并利用UNIFI数据分析平台对各组差异代谢物进行筛选,最终在Metabo Analyst等数据库中寻找差异代谢物所参与的代谢通路。结果显示,共筛选出甘油二酯(14∶0/22∶2(13Z,16Z)/0∶0、15∶0/18∶3(6Z,9Z,12Z)/0∶0、16∶0/20∶3(8Z,11Z,14Z)/0∶0、18∶1(11Z)/18∶1(11Z)/0∶0)、神经酰胺(d18∶2/20∶0)、鞘糖脂(d18∶1/18∶1(9Z))、二十一烷二酸、溶血卵磷脂(15∶0、16∶1(9Z)、20∶3(5Z,8Z,11Z)、20∶3(8Z,11Z,14Z)、18∶1(9Z)、18∶2(9Z,12Z))、磷脂酸(22∶4(7Z,10Z,13Z,16Z)/0∶0)、磷脂酰胆碱(16∶0/20∶3(5Z,8Z,11Z)、16∶0/P-18∶0、18∶1(11Z)/20∶1(11Z)、17∶1(10Z)/0∶0、20∶3(8Z,11Z,14Z)/18∶0、O-18∶0/0∶0)、磷脂酰乙醇胺(16∶0/0∶0、18∶3(6Z,9Z,12Z)/22∶6(4Z,7Z,10Z,13Z,16Z,19Z)、20∶3(8Z,11Z,14Z)/0∶0、18∶4(6Z,9Z,12Z,15Z)/18∶0)、磷脂酰肌醇(20∶0/22∶2(13Z,16Z))、鞘磷脂(d16∶1/25∶0、d18∶1/24∶0)27 种差异代谢物,且PSE可通过纠正高脂饮食诱导的甘油磷脂代谢及醚脂质代谢通路的紊乱发挥对NAFLD的预防作用。

关键词: 植物甾醇酯, 非酒精性脂肪肝, 血清小分子代谢物, 超高效液相色谱联用四极杆串联飞行时间质谱

Abstract: Based on our previous studies, the effect of phytosterol esters (PSE) on selected serum small-molecule metabolites of rats with non-alcoholic fatty liver disease (NAFLD) was investigated in the present study. Further, we explored the molecular mechanism underlying the preventive effect of PSE on NAFLD. Rats were fed with a high-fat diet to establish a NAFLD animal model, and PSE fortified milk at low (0.05 g/100 g mb·d) and high (0.10 g/100 g mb·d) doses were respectively given to rats in the PSE intervention groups by intragastric administration at the same time. Serum small-molecule metabolites of NAFLD rats were detected using ultra performance liquid chromatography-quadrupole-tandem time-of-flight mass spectrometry (UPLC-Q-TOF-MS). In addition, Progenesis QI v2.3 software, UNIFI data analysis platform and Metabo Analyst were used to analyze differential serum metabolites and the metabolic pathways involving the identified differential metabolites. Our results showed that 27 metabolites were identified, including diglyceride (14:0/22:2(13Z,16Z)/0:0, 15:0/18:3 (6Z,9Z,12Z)/0:0, 16:0/20:3(8Z,11Z,14Z)/0:0, 18:1(11Z)/18:1(11Z)/0:0), glucosylceramide (d18:2/20:0), lactosylceramide (d18:1/18:1(9Z)), heneicosanedioic acid, lysophospholipid (Lyso PC) (15:0, 16:1(9Z), 20:3(5Z,8Z,11Z), 20:3(8Z,11Z,14Z), 18:1(9Z), 18:2(9Z,12Z)), phosphatidic acid(22:4(7Z,10Z,13Z,16Z)/0:0), phosphatidylcholine(16:0/20:3(5Z,8Z,11Z), 16:0/P-18:0, 18:1(11Z)/20:1(11Z), 17:1(10Z)/0:0, 20:3(8Z,11Z,14Z)/18:0, O-18:0/0:0), phosphatidylethanolamine (16:0/0:0, 18:3(6Z,9Z,12Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z), 20:3(8Z,11Z,14Z)/0:0, 18:4(6Z,9Z,12Z,15Z)/18:0), phosphatidylinositol(20:0/22:2 (13Z,16Z)) and sphingomyelin (d16:1/25:0, d18:1/24:0). The preventive effect of PSE was exerted on NAFLD probably through correcting high-fat diet-induced disturbance of the glycerophospholipid and lipid metabolism pathways.

Key words: phytosterol esters, non-alcoholic fatty liver disease, serum small-molecule metabolites, ultra performance liquid chromatography-quadrupole-tandem with time-of-fight mass spectrometry

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