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Abstract Title:

Acute toxicity and anti-fatigue activity of polysaccharide-rich extract from corn silk.

Abstract Source:

Biomed Pharmacother. 2017 Jun ;90:686-693. Epub 2017 Apr 15. PMID: 28419963

Abstract Author(s):

He-Peng Zhao, Yang Zhang, Zhuo Liu, Jiang-Yue Chen, Song-Yan Zhang, Xiu-Dong Yang, Hong-Li Zhou

Article Affiliation:

He-Peng Zhao

Abstract:

The aim of this study was to evaluate the safety and potential of PCS as the anti-fatigue functional food. PCS was prepared by water extracting-alcohol precipitating method, and its chemical compositions of monosaccharide were analyzed. Then, acute toxicity and anti-fatigue activity of PCS were evaluated. PCS is composed of Rha, Arab, Xyl, Man, Glu, and Gal, its molar ratio is 0.17: 0.30: 0.26: 0.35: 1.00: 0.57. No mortality and general symptoms of toxicity were observed in the PCS treated mice (7.5, 15, and 20g/kg body weight), the body weight and food consumption were not significantly changed compared with the normal control group. The relative weights of main organ, and biochemical indicators also did not markedly change. PCS can significantly prolong the duration of the swimming time to exhaustion in mice, decrease BUN, LA levels, increase LDH activities, and the contents of HG in the PCS treated mice. The dose of 400mg/kg body weight is the optimal dose for anti-fatigue activity both in male and female mice. In conclusion, PCS is a promising traditional natural-based therapeutic remedy for relieving fatigue with high safety.

Study Type : Animal Study

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