食品科学 ›› 2019, Vol. 40 ›› Issue (15): 192-202.doi: 10.7506/spkx1002-6630-20180526-372

• 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肝脏部分代谢物的影响

欧阳鹏凌,管 玘,曲 丹,丁信文,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:2019-08-15 发布日期:2019-08-26
  • 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)

Effects of Phytosterol Esters on Selected Hepatic Metabolites in Rats with Nonalcoholic Fatty Liver (NAFLD)

OUYANG Pengling, GUAN Qi, QU Dan, DING Xinwen, 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:2019-08-15 Published:2019-08-26

摘要: 本实验通过考察植物甾醇酯(phytosterol esters,PSE)对高脂饮食诱导的非酒精性脂肪肝(nonalcoholic fatty liver disease,NAFLD)大鼠肝脏部分小分子代谢物的影响,深入研究PSE对NAFLD发挥预防作用的代谢分子机制。利用高脂饮食建立NAFLD大鼠模型的同时,PSE干预组分别灌胃低剂量(0.05 g/(100 g?d mb))、高剂量(0.10 g/(100 g?d mb))PSE强化牛奶,利用超高效液相色谱-四极杆串联飞行时间质谱仪(ultraperformance liquid chromatography tandem time-of-fight mass spectrometry,UPLC-Q-TOF-MS)分析大鼠肝脏组织代谢物,通过Progenesis QI v2.3软件进行无监督和有监督的模式判别及UNIFI数据分析平台初步筛选各组差异代谢物,利用Metabo Analyst(http://www.metaboanalyst.ca/faces/upload/PathUploadView.xhtml)等数据库寻找所参与的代谢通路。结果:筛选出磷脂酸(16∶0/20∶2(11Z,14Z)、20∶1(11Z)/0∶0)、磷脂酰胆碱(16∶0/18∶1(11E)、18∶1(6Z)/0∶0、18∶1(9Z)/18∶0、20∶3(8Z,11Z,14Z)/0∶0、15∶0/18∶1(11Z)、16∶0/16∶1(9Z)、16∶0/2∶0、17∶1(10Z)/0∶0、19∶3(10Z,13Z,16Z)/0∶0、20∶4(5Z,8Z,11Z,14Z)/14∶0)、磷脂酰乙醇胺(20∶3(8Z,11Z,14Z)/22∶6(4Z,7Z,10Z,13Z,16Z,19Z)、22∶6(4Z,7Z,10Z,13Z,16Z,19Z)/17∶1(9Z))、磷脂酰甘油(17∶2(9Z,12Z)/22∶6(4Z,7Z,10Z,13Z,16Z,19Z))、鞘磷脂(d18∶0/16∶0)、甘氨胆酸、溶血卵磷脂(18∶1(9Z)、20∶3(5Z,8Z,11Z))、20∶3(8Z,11Z,14Z))共20 种差异代谢物,高剂量PSE可更好地调节高脂饮食诱导的甘油磷脂代谢通路的紊乱。结论:PSE可通过调节磷脂类和胆汁酸类的小分子代谢物含量来改善NAFLD的发生发展。

关键词: 植物甾醇酯, 肝脏, 代谢物, 非酒精性脂肪肝, 超高效液相色谱-四极杆串联飞行时间质谱

Abstract: To explore the mechanisms of the preventive effect of phytosterol esters (PSE) on nonalcoholic fatty liver disease (NAFLD), we investigated the effects of PSE on selected hepatic small-molecule metabolites in rats with NAFLD. A high-fat diet was used to establish a rat model of NAFLD, and PSE-fortified milk at low (0.05 g/100 g mb) and high (0.10 g/100 g mb) doses were intragastrically administered to the rats of the PSE intervention groups. Hepatic metabolite profiling of NAFLD rats was performed using ultra performance liquid chromatography tandem time-of-fight mass spectrometry (UPLC-Q-TOFMS). Using Progenesis QI v2.3 software, UNIFI data analysis platform and Metabo Analyst (http://www.metaboanalyst. ca/faces/upload/PathUploadView.xhtml), 20 differential metabolites were identified, including phosphatidic acid (PA; 16:0/20:2 (11Z, 14Z), 20:1 (11Z)/0:0); phosphatidylcholine (PC; 16:0/18:1 (11E), 18:1 (6Z)/0:0, 18:1 (9Z)/18:0, 20:3 (8Z, 11Z, 14Z)/0:0, 15:0/18:1 (11Z), 16:0/16:1 (9Z), 16:0/2:0, 17:1 (10Z)/0:0, 19:3 (10Z, 13Z, 16Z)/0:0, 20:4 (5Z, 8Z, 11Z, 14Z)/14:0)); phosphatidylethanolamine (PE; 20:3(8Z, 11Z, 14Z)/22:6(4Z, 7Z, 10Z, 13Z, 16Z, 19Z), 22:6 (4Z, 7Z, 10Z, 13Z, 16Z, 19Z)/17:1 (9Z)); phosphatidylglycerol (PG; 17:2 (9Z, 12Z)/22:6 (4Z, 7Z, 10Z, 13Z, 16Z, 19Z)); sphingomyelin (SM, d18:0/16:0); glycocholic acid; and lysophosphatidylcholine (LysoPC; 18:1(9Z), 20:3 (5Z, 8Z, 11Z)), 20:3 (8Z, 11Z, 14Z)). High-dose PSE effectively regulated high-fat diet-induced glycerophospholipid metabolic pathway disorders. These results indicated that PSE could mitigate the progression of NAFLD by regulating the contents of small-molecule metabolites of phospholipids and bile acids.

Key words: phytosterol esters, liver, metabolites, nonalcoholic fatty liver, ultra performance liquid chromatography tandem with time-of-fight mass spectrometry

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