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CJAP ›› 2019, Vol. 35 ›› Issue (4): 366-370.doi: 10.12047/j.cjap.5779.2019.078

• ORIGINAL ARTICLES • Previous Articles     Next Articles

Effects of Acorus tatarinowii Schott and its active component -5- hydroxymethylfurfural on ERK/CREB signal in hippocampus of exercise-induced fatigue rats

CHEN Hui-hua1, ZHU Mei-ju1△, ZHU Hong-zhu1, DING Xiao-min1, WANG Hui 1, MAO Ze-hua2   

  1. 1. Institute of Physical Education, Jinggangshan University, Ji’an 343009;
    2. Logistics Support Department, Jinggangshan University, Ji’an, 343009, China
  • Received:2018-11-12 Online:2019-07-28 Published:2019-11-06

Abstract: Objective: To investigate the effects of Acorus tatarinowii Schott and its active component 5- hydroxymethyl furfural (HMF) on learning and memory and ERK/CREB signal in hippocampus of rats with exercise-induced fatigue. Methods: SD rats were randomly divided into normal group (A), exercise group (B), exercise + HMF low, middle and high dose treatment group (C, D, E), exercise + acorus tatarinowii Schott low, middle and high dose treatment group (F, G, H), with ten rats in each group. The rats in group C, D and E were treated with HMF at the doses of 0.10, 1.00 and 3.00 mg. kg-1 by ig. The rats in group F, G and H were treated with the extracts of Acorus tatarinowii Schott at the doses of 0.12, 1.20 and 4.80 g. kg-1 by ig. Learning and memory of rats were tested by the method of water maze experiment, and the expression levels of p-ERK1/2 and p-CREB protein in hippocampus of rats were tested by the method of Western blot in the end of the experiment. Results: The escape latencies of E and H groups were lower than those of groups B, C, D, F and G; and the numbers of plateau crossing were more than those of groups B, C, D, F and G and the expression levels of p-ERK1/2, p-CREB protein were higher than those of groups B, C, D, F and G , respectively(P < 0.01). There was no significant difference in the above indexes among groups A, E and H(P>0.05) except that the expression levels of p-ERK2 protein in group E were lower than those in group A and H (P<0.05). Conclusion: Acorus tatarinowii and its active component- HMF can improve the learning and memory of rats with exercise-induced fatigue, and the mechanism is related to the up-regulation of ERK / CREB signal in hippocampus of rats with exercise-induced fatigue.

Key words: acorus tatarinowii Schott, 5-hydroxymethylfurfural, exercise, learning and memory, extracellular signal-regulated kinase, cAMP-responsive element-binding protein, rat

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