蓝莓浓缩汁对小鼠疲劳的改善作用及机制初探

Xiu-xiu DUN, Shang-li ZHENG,Bo JIANG,Qi ZHANG,Li-jia AN

Progress in Modern Biomedicine(2018)

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Abstract
目的:对蓝莓浓缩汁进行抗疲劳功效评价,并对其所涉及的作用机制进行初步探究.方法:小鼠通过预筛选和强制游泳预处理后,以生理盐水为对照组,蓝莓浓缩汁高、低剂量和Vc分别作为实验组.经给药及游泳处理后,观察各组小鼠的行为学特征,测定力竭游泳时间,检测血浆和脑组织匀浆中T-SOD活力、MDA含量、LDH活性及血浆中BUN含量的变化,并经HE染色察看小鼠组织病变状况.结果:与S对照组相比,高剂量蓝莓浓缩汁可明显改善疲劳小鼠的行为学特征,延长力竭游泳时间;在血浆和脑组织匀浆中,可增加T-SOD活性((136.92± 10.39)%,(50.31±7.26)%),降低MDA含量((58.32±2.91)%,(50.89±2.91)%),提高LDH活性((72.79±19.11)%,(65.11±6.55)%),并减少血浆中BUN((46.92±3.36)%)的产生,(P<0.01);还可防止细胞病变间隙的发生.低剂量蓝莓浓缩汁和VC处理组的改善效果不如高剂量组明显.结论:蓝莓浓缩汁有明显抗疲劳功效,所涉及的机制可能与其增强抗氧化酶活性,提高机体有氧代谢能力及改善机体物质代谢等有关.
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Key words
Concentrated blueberry juice,Anti-fatigue,Aerobic metabolism capacity
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