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中国精品科技期刊2020
梅鑫,文治瑞,刘金香,等. 复合绿茶对高脂血症小鼠的降脂作用[J]. 食品工业科技,2022,43(1):21−31. doi: 10.13386/j.issn1002-0306.2021060039.
引用本文: 梅鑫,文治瑞,刘金香,等. 复合绿茶对高脂血症小鼠的降脂作用[J]. 食品工业科技,2022,43(1):21−31. doi: 10.13386/j.issn1002-0306.2021060039.
MEI Xin, WEN Zhirui, LIU Jinxiang, et al. Lipid-lowering Effect of Compound Green Tea on Hyperlipidemia Mice[J]. Science and Technology of Food Industry, 2022, 43(1): 21−31. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021060039.
Citation: MEI Xin, WEN Zhirui, LIU Jinxiang, et al. Lipid-lowering Effect of Compound Green Tea on Hyperlipidemia Mice[J]. Science and Technology of Food Industry, 2022, 43(1): 21−31. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021060039.

复合绿茶对高脂血症小鼠的降脂作用

Lipid-lowering Effect of Compound Green Tea on Hyperlipidemia Mice

  • 摘要: 以高脂饮食诱导建立高脂血症小鼠模型,基于广泛靶向代谢组技术研究复合茶干预期间小鼠肝脏脂类代谢产物的差异。30只小鼠随机分为高脂模型组(NK)和复合绿茶高(DH)、低(DL)剂量组,三组小鼠均饲喂高脂饲料,并分别灌胃饮用水和不同浓度的复合绿茶提取物(840.0、210.0 mg/kg)。30 d试验结束后,分析小鼠的体重及肝脏脂代谢产物。结果表明:复合绿茶剂量组的小鼠最终体重和增重与高脂模型组存在极显著差异(P<0.01);各处理组肝脏中检测到110个代谢物,其中模型对照组小鼠肝脏中溶血卵磷脂酰胆碱16:1、(±)12(13)环氧-9Z-十八碳烯酸、前列腺素E2、(±)17-羟基-5Z, 8Z, 11Z, 14Z-二十碳四烯酸、溶血卵磷脂酰丝氨酸22:5、前列腺素D2、溶血卵磷脂酰乙醇胺14:0等22种代谢物质差异较显著;随着复合茶浓度增加,小鼠肝脏中的溶血卵磷脂酰胆碱16:1、6-酮前列腺素F1α、溶血卵磷脂酰丝氨酸22:5、前列腺素D2、溶血卵磷脂酰乙醇胺14:0等代谢物质下调,(±)17-羟基-5Z, 8Z, 11Z, 14Z-二十碳四烯酸上调,且高脂血症小鼠的血脂紊乱也得到改善。综上所述,复合茶对高脂血症小鼠有明显的抑制体重增长和降脂作用,其作用机制可能与促进肝脏脂代谢有关,使上述22种差异代谢物向正常的状态转变。

     

    Abstract: The hyperlipidemia mouse model was established by the induction of high-fat diet, and the difference of liver lipid metabolites in mice during the intervention of compound tea was investigated based on the widely targeted metabolome technology. Thirty mice were randomly divided into high-fat diet group (NK) and compound green tea high (DH) and low (DL) dose groups. These three groups were fed with high-fat diet and gavaged with purified water and different concentrations of compound green tea extract (840.0 and 210.0 mg/kg). After the 30 day experiment, the body weight and liver lipid metabolites of mice were analyzed. The results showed that the final body weight and weight gain of mice in the compound tea dose groups were significantly different from those in the high-fat model group (P<0.01). In addition, 110 metabolites were detected in the liver of each treatment group, among which 22 metabolites, including lysophosphatidylcholine 16:1, (±) 12 (13) epoxy-9z-octadecenoic acid, prostaglandin E2, (±) 17-hydroxy-5Z, 8Z, 11Z, 14Z eicosatetraenoic acid, lysophosphatidylserine 22:5, prostaglandin D2, lysophosphatidylethanolamine 14:0 were significantly different in the liver of model control group; with the increase of compound tea concentration, the contents of lysophosphatidylcholine 16:1 and 6-keto-prostaglandin F1α、Lysophosphatidylserine 22:5, prostaglandin D2 and lysophosphatidylethanolamine 14:0 were down regulated, (±) 17-hydroxy-5Z, 8Z, 11Z, 14Z eicosatetraenoic acid was up-regulated, and the dyslipidemia of hyperlipidemia mice was also improved. In conclusion, compound tea could significantly inhibit weight gain and reduce blood lipid in hyperlipidemic mice, and its mechanism might be related to promoting liver lipid metabolism, making the above 22 different metabolites change to normal state.

     

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