RT Journal Article
ID 62066ac8257a4545
A1 Fan, Linlin
A1 Chen, Lingling
A1 Liang, Zhi
A1 Bao, Hongkun
A1 Wang, Dan
A1 Dong, Yilong
A1 Zheng, Shangyong
A1 Xiao, Chunjie
A1 Du, Jing
A1 Li, Hongliang
T1 A Polysaccharide Extract from Maitake Culinary-Medicinal Mushroom, Grifola frondosa (Agaricomycetes) Ameliorates Learning and Memory Function in Aluminum Chloride-Induced Amnesia in Mice
JF International Journal of Medicinal Mushrooms
JO IJM
YR 2019
FD 2019-12-11
VO 21
IS 11
SP 1065
OP 1074
K1 Grifola frondosa
K1 maitake
K1 polysaccharide
K1 amnesia
K1 aluminum chloride
K1 neuroprotection
K1 medicinal mushrooms
AB Maitake (Grifola frondosa) is an edible mushroom exhibiting high nutritional value in terms of containing health-beneficial bioactive compounds. Previously, we reported that a protein-bound polysaccharide bioactive component of G. frondosa (PGM) could enhance the expression of α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor (AMPAR), which is critical for learning and memory. However, the potential benefits of PGM on learning and memory function have never been investigated. In the current study, we aimed to explore the beneficial effect of PGM on learning and memory function in aluminum chloride (AlCl3)-induced amnesia in mice and to explore the underlying mechanisms. Mice were intraperitoneally administered with AlCl3 (60 mg/kg/d) and PGM (5, 10, or 20 mg/kg/d) for 6 weeks consecutively, and then the Morris water maze (MWM) test was conducted to assess the learning and memory function. Hematoxylin-eosin staining was performed to observe the morphology of neurons in the hippocampal dentate gyrus (DG). The expression of p-Tau (Ser396), Tau, p-GluA1 (S845), GluA1, and brain-derived neurotrophic factor (BDNF) proteins was evaluated with western blot. We found that PGM (5 and 10 mg/kg/d) significantly improved learning and memory function and attenuated histopathological abnormalities in the hippocampal DG region in the AlCl3-treated mice. Furthermore, PGM treatment significantly enhanced the level of AMPAR and BDNF in the hippocampus, while suppressing the tau protein hyperphosphorylation at the Ser396 site. These findings indicated that PGM could significantly attenuate the AlCl3-induced amnesia through the synergistic action of its active component on tau pathology, AMPAR and BDNF signaling pathway.
PB Begell House
LK https://www.dl.begellhouse.com/journals/708ae68d64b17c52,25f9c61f6dbb0698,62066ac8257a4545.html