title: CordyMax Cs-4 improves steady-state bioenergy status in mouse liver.
abstract: OBJECTIVE
  To evaluate effects of CordyMax Cs-4, a mycelial fermentation product of Cordyceps sinensis, on energy metabolism.
  
  
  METHODS
  An in vivo pharmacology study using 31P nuclear magnetic resonance (NMR) spectroscopy. SUBJECTS AND STUDY INTERVENTIONS: Adult male C57-BL/6 mice were given an aqueous extract of CordyMax, 200 or 400 mg/kg per day or placebo for 7 days.
  
  
  METHODS
  Using 31P-NMR spectroscopy to measure cellular triphosphates and inorganic phosphate, expressed as a ratio to a reference peak, and calculate tissue pH.
  
  
  RESULTS
  Steady-state beta adenosine triphosphate (ATP) increased in the liver of mice that received CordyMax (200 or 400 mg/kg per day) for 7 days, by 12.3% +/- 0.8% and 18.4% +/- 0.9%, respectively, compared to placebo controls (both p < 0.001), suggesting a higher hepatic bioenergy status in CordyMax-treated animals. Hepatic inorganic phosphate (Pi) decreased by 24.5% +/- 0.9% and 17.6% +/- 1.7% in the two treatment groups, respectively, compared to placebo controls (p < 0.001). The ratio of beta-ATP:Pi increased by 47.7% +/- 1.6% and 41.4% +/- 2.4%, respectively, in the treatment groups (both p < 0.001 compared to placebo). After discontinuation of CordyMax for 7 days, beta-ATP and Pi returned towards baseline.
  
  
  CONCLUSIONS
  CordyMax is effective in improving bioenergy status in the murine liver, suggesting a mechanism underlying the known clinical effectiveness of CordyMax in alleviating fatigue and improving physical endurance, especially in elderly subjects.
authors: Department of Pharmacology, Institute of Materia Medica, Peking Union Medical University, Chinese Academy of Medical Sciences, Beijing, China.
authors: G
authors: G
authors: Dai
authors: T
authors: T
authors: Bao
authors: C
authors: C
authors: Xu
authors: R
authors: R
authors: Cooper
authors: J S
authors: JS
authors: Zhu
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism*; D000818:Animals; D003839:Deoxyadenosines / Q000494:pharmacology*; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D004734:Energy Metabolism / Q000187:drug effects; D008099:Liver / Q000187:drug effects* / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D010759:Phosphorus Isotopes; D010865:Pilot Projects
chemical_list: C439563:CordyMax Cs-4; D003839:Deoxyadenosines; D004365:Drugs, Chinese Herbal; D010759:Phosphorus Isotopes; D000255:Adenosine Triphosphate; C058120:cordycepin