目的:观察木瓜发酵液对高糖高脂饲料诱导的非酒精性脂肪性肝病(NAFLD)小鼠脂质代谢及AMP激活蛋白酶(AMPK)/沉默信息调节因子1(SIRT1)通路的调控机制。方法:取雄性昆明小鼠32只,随机分为4组,即正常组、模型组、木瓜发酵液高(10 m L/kg)...目的:观察木瓜发酵液对高糖高脂饲料诱导的非酒精性脂肪性肝病(NAFLD)小鼠脂质代谢及AMP激活蛋白酶(AMPK)/沉默信息调节因子1(SIRT1)通路的调控机制。方法:取雄性昆明小鼠32只,随机分为4组,即正常组、模型组、木瓜发酵液高(10 m L/kg)和低剂量组(5 m L/kg),每组8只。三周后,收集小鼠血液及组织样本。用试剂盒检测血清ALT、肝组织甘油三酯(TG)含量,分别用RT-PCR和Western Bloting检测p-AMPK和SIRT1基因的mRNA和蛋白表达水平。结果:与正常组比较,模型组小鼠病理证实肝组织脂质蓄积严重,血清ALT和肝脏TG水平明显升高(p<0.05),肝组织SIRT1、Fox O1和p-AMPK mRNA及蛋白表达均显著降低(p<0.05)。与模型组比较,木瓜发酵液明显改善肝组织脂质蓄积,肝组织TG含量明显下降(p<0.05),肝组织SIRT1、Fox O1 mRNA和SIRT1、p-AMPK蛋白表达均显著上调(p<0.05),其中木瓜发酵液高剂量组较低剂量组效果好,但二者比较差异无统计学意义。结论:木瓜发酵液能够改善高糖高脂饮食诱导的NAFLD小鼠脂肪代谢紊乱,减轻肝脏脂质蓄积,其作用机制可能与肝细胞内AMPK/SIRT1通路的激活有关。展开更多
In order to find out a new way for environment-friendly and resourcelized utilization of cassava starch processing wastewater, the cassava starch anaerobic fermentation liquid was applied in watermelon production, and...In order to find out a new way for environment-friendly and resourcelized utilization of cassava starch processing wastewater, the cassava starch anaerobic fermentation liquid was applied in watermelon production, and its effects on the growth and development, yield and fruit quality of watermelon were investigated. The results showed that the cassava starch anaerobic fermentation liquid significant- ly promoted the vegetative and reproductive growth and improved the yield and fruit quality of watermelon. Compared with conventional fertilization, the application of cassava starch anaerobic fermentation both with COD concentration of 1 200 mg/L according to the amount of 150 t/hm2 promoted the growth of vines and leaves of watermelon plants, brought forward the flowering, fruiting and harvest of watermelon and significantly increased the fruit number, fruit weight, yield, fruit size, fruit shape index, soluble solid content, soluble sugar content, soluble protein content and Vita- min C content of watermelon. At the same time of improving the yield and quality of watermelon, cassava starch anaerobic fermentation liquid was turned into treasure as a liquid fertilizer. This study provides a new ideal for the yield and quality im- provement of watermelon and the wastewater treating of starch factories.展开更多
文摘目的:观察木瓜发酵液对高糖高脂饲料诱导的非酒精性脂肪性肝病(NAFLD)小鼠脂质代谢及AMP激活蛋白酶(AMPK)/沉默信息调节因子1(SIRT1)通路的调控机制。方法:取雄性昆明小鼠32只,随机分为4组,即正常组、模型组、木瓜发酵液高(10 m L/kg)和低剂量组(5 m L/kg),每组8只。三周后,收集小鼠血液及组织样本。用试剂盒检测血清ALT、肝组织甘油三酯(TG)含量,分别用RT-PCR和Western Bloting检测p-AMPK和SIRT1基因的mRNA和蛋白表达水平。结果:与正常组比较,模型组小鼠病理证实肝组织脂质蓄积严重,血清ALT和肝脏TG水平明显升高(p<0.05),肝组织SIRT1、Fox O1和p-AMPK mRNA及蛋白表达均显著降低(p<0.05)。与模型组比较,木瓜发酵液明显改善肝组织脂质蓄积,肝组织TG含量明显下降(p<0.05),肝组织SIRT1、Fox O1 mRNA和SIRT1、p-AMPK蛋白表达均显著上调(p<0.05),其中木瓜发酵液高剂量组较低剂量组效果好,但二者比较差异无统计学意义。结论:木瓜发酵液能够改善高糖高脂饮食诱导的NAFLD小鼠脂肪代谢紊乱,减轻肝脏脂质蓄积,其作用机制可能与肝细胞内AMPK/SIRT1通路的激活有关。
文摘In order to find out a new way for environment-friendly and resourcelized utilization of cassava starch processing wastewater, the cassava starch anaerobic fermentation liquid was applied in watermelon production, and its effects on the growth and development, yield and fruit quality of watermelon were investigated. The results showed that the cassava starch anaerobic fermentation liquid significant- ly promoted the vegetative and reproductive growth and improved the yield and fruit quality of watermelon. Compared with conventional fertilization, the application of cassava starch anaerobic fermentation both with COD concentration of 1 200 mg/L according to the amount of 150 t/hm2 promoted the growth of vines and leaves of watermelon plants, brought forward the flowering, fruiting and harvest of watermelon and significantly increased the fruit number, fruit weight, yield, fruit size, fruit shape index, soluble solid content, soluble sugar content, soluble protein content and Vita- min C content of watermelon. At the same time of improving the yield and quality of watermelon, cassava starch anaerobic fermentation liquid was turned into treasure as a liquid fertilizer. This study provides a new ideal for the yield and quality im- provement of watermelon and the wastewater treating of starch factories.
