FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (5): 256-259.doi: 10.7506/spkx1002-6630-201205054

• Nutrition & Hygiene • Previous Articles     Next Articles

Effect of Krestin Polysaccharide on Antioxidant Capability and ATPase Activity in Brain Tissues of Rats with High Intensity Exercise

XI Xue-feng，WANG Dan-yi，XIONG Zheng-ying，ZHANG Lin   

  1. 1. College of Physical Education, Henan University, Kaifeng 475001, China； 2. College of Physical Education, Suzhou University, Suzhou 215021, China；3. Acupuncture and Tuina-Massage Institute, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, China；4. College of Physical Education, Shaanxi Normal University, Xi，an 710062, China
  • Online:2012-03-15 Published:2012-03-03

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Abstract: Objective: To explore the effect of Krestin polysaccharide (PSK) on the activities of antioxidant enzymes and Na+-K+-ATPase as well as Ca2 +-Mg2 +-ATPase in brain tissues of rats after exhaustive exercise. Methods: 24 SD rats were divided into three groups including the control group without exercise, exercise group and exercise plus PSK group. Each group included 8 rats. The rats from the exercise and exercise plus PSK groups were subjected to high-intensity endurance running for 8 consecutive weeks. The changes in the activities of antioxidant enzymes, Na+-K+-ATPase and Ca2+-Mg2+-ATPase were measured. Results: The activities of SOD, CAT, GSH-Px, T-AOC, Na+-K+-ATPase and Ca2+-Mg2+-ATPase as well as blood sugar revealed a significant decrease in exercise groups when compared with the control group without exercise (P＜0.01 or P＜0.05). Meanwhile, the generation of MDA exhibited a significant increase in exercise groups (P＜0.05). Moreover, PSK could improve the activities of SOD, CAT, GSH-Px, T-AOC, Na+-K+-ATPase, Ca2+-Mg2+-ATPase and blood sugar in brain tissues of the rats with exhaustive exercise (P＜0.01 or P＜0.05), and reduce the MDA generation (P＜0.05). Conclusion: PSK can improve the activities of antioxidant enzymes, Na+-K+-ATPase and Ca2+-Mg2+-ATPase in brain tissues of the rats with exhaustive exercise, which is important for keeping energy supply during the exercise and enhancing the exercise capacity of rats.

Key words: polysaccharide krestin (PSK), antioxidant enzymes, exercise training, rats

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