LEI Ping, MA Xian-de, XU Ming, et al. Effect of Grifola Frondosa Polysaccharide on Expression of p-p38 MAPK in CIF Model[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(1): 114-118.
LEI Ping, MA Xian-de, XU Ming, et al. Effect of Grifola Frondosa Polysaccharide on Expression of p-p38 MAPK in CIF Model[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(1): 114-118. DOI: 10.13422/j.cnki.syfjx.2018010114.
Objective:To investigate the effect of grifola frondosa polysaccharide in alleviating fatigue in the chemotherapy-induced fatigue (CIF) model
and explore its possible mechanism. Method:A total of 60 6-8 week-old SPF C57BL/6 mice were randomly divided into 4 groups
namely normal group
model group
low-dose grifola frondosa polysaccharide group (5 mg·kg-1) and high-dose grifola frondosa polysaccharide group (10 mg·kg-1). The mice were injected with 5-fluorouracil (40 mg·kg-1)
ip
once a day
for five days
except for normal group. At the same time
low-dose grifola frondosa polysaccharide group and high-dose grifola frondosa polysaccharide group were given different doses of grifola frondosa polysaccharide. Body weight and grasping power were measured during the experimental period. At the 15th day
the mice were put to death
and content of blood urea nitrogen
blood lactic acid and hepatic glycogen
as well as p38 mitogen-activated protein kinase (p38 MAPK) mRNA and protein expressions in gastrocnemius muscle were detected. Result:Both low-dose and high-dose grifola frondosa polysaccharide can obviously enhance the grasping power in CIF mice (P<0.01); low-dose and high-dose grifola frondosa polysaccharide can obviously decrease the value of blood urea nitrogen (P<0.05) after exercise. High-dose grifola frondosa polysaccharide can obviously decrease the blood lactic acid value in CIF mice after exercise (P<0.01)
and low-dose and high-dose grifola frondosa polysaccharide can significantly reduce p38 MAPK mRNA and phosphorylated p38 MAPK protein expressions in gastrocnemius muscle. Conclusion:Grifola frondosa polysaccharide can improve chemotherapy-induced fatigue in mice
which may be correlated with down-regulation of p38 MAPK mRNA and phosphorylated p38 MAPK protein expressions.