植物乳杆菌协同单甘油月桂酸酯促进小鼠增重并改善血脂水平和炎症反应
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杭州市产学研合作项目(20161631E01)


The Synergy of Lactobacillus plantarum and Glycerol Monolaurate Promotes Weight Gain, Improves Serum Lipids Level and Ameliorates Inflammation in Mice
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    摘要:

    低剂量单甘油月桂酸酯(GML)的使用能引起血脂异常和低度炎症。为解决GML这一潜在的健康风险问题,研究了植物乳杆菌ZJUFT34(T34)对GML诱导的增重小鼠的血脂、胰岛素和细胞因子等方面的调节作用。以雄性C57BL/6小鼠为研究对象,分别饲喂基础饲料和含150 mg/kg GML的基础饲料,待GML诱导小鼠产生显著性增重后,灌胃T34处理3周,眼球采血后测定血清血脂水平、空腹葡萄糖和胰岛素水平以及细胞因子水平。结果表明:T34的使用,能维持GML引起的显著性增重,终体重比对照组增加了2.48 g(约9.3%),同时显著升高了高密度脂蛋白胆固醇/低密度脂蛋白胆固醇(HDL-C/LDL-C)的水平,改善了胰岛素抵抗,降低了促炎细胞因子白介素-6(IL-6)水平,并上调了抗炎细胞因子转化生长因子-β(TGF-β)的水平。T34和GML的配合使用,既能发挥GML促进生长的有利作用,又可以减轻GML的潜在危害,使增重小鼠维持健康状态。

    Abstract:

    Low-dosage glycerol monolaurate (GML) administration was able to induce dyslipidemia and low grade inflammation in mice. Lactobacillus plantarum ZJUFT34 (T34) was used to regulate the serum lipids, insulin and cytokines in overweight mice induced by GML, in order to address potential health risks associated with GML consumption. Male C57BL/6 mice were divided into two groups, fed with basic diet and basic diet containing 150 mg/kg GML, respectively. T34 was administered to mice after they exhibited significant body weight gain induced by GML. Blood samples were collected after a three-week T34 treatment. The levels of lipids, fasting glucose, insulin and cytokines in serum were determined. The results showed that the administration of T34 could maintain the significant body weight gain of the mice induced by GML and the final body weight was 2.48 g (approximately 9.3%) higher than the control group. T34 in combination with GML significantly elevated the ratio of high-density lipoprotein-cholesterol to low-density lipoprotein-cholesterol (HDL-C / LDL-C), ameliorated insulin resistance, decreased the pro-inflammatory cytokine interleukin-6 (IL-6) level, and upregulated the anti-inflammatory cytokine transforming growth factor-β (TGF-β) level. T34 in combination with GML not only exert the beneficial effects of GML to promote mice growth, but also reduce the potential harm of GML and maintain health of mice.

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李杨;张希;李阳;冯凤琴.植物乳杆菌协同单甘油月桂酸酯促进小鼠增重并改善血脂水平和炎症反应[J].中国食品学报,2020,20(10):8-15

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  • 在线发布日期: 2020-11-11
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