PMID: 25792655Mar 21, 2015Paper

Evaluation of Hirsutella sinensis mycelium for antifatigue effect

In Vivo
Lung-Yuan WuJing-Gung Chung

Abstract

The aim of this study was to investigate whether Hirsutella sinensis mycelium (HSM) has any antifatigue effect, using a forced swimming model in rats. Forty rats were randomly divided into five groups, each containing eight animals. The control group received 2 ml/kg body weight of distilled water and a positive control group was administered 1.13 ml/kg Quaker Essence of Chicken. The treated swimming groups were administered HSM powder manufactured by Chang Gung Biotechnology Corporation, Ltd., at doses of 63 mg/kg, 189 mg/kg or 378 mg/kg body weight/day, respectively for a period of six weeks. The above experiment was repeated with another 40 rats but for a period of eight weeks. At the end of the experiments, rats were placed in a swimming apparatus and the total swimming time until exhaustion was recorded. Pre-/post-exercise concentrations of serum urea nitrogen (BUN) and lactic acid were also determined. There were no deaths during the study. Physical and behavioral examinations did not reveal any treatment-related adverse effects after dosing. Changes in lactate levels were dose-dependent for the 8- but not the 6-week treatment. BUN levels were more affected by the 8-week treatment of HSM but not significantly altered in t...Continue Reading

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