ABSTRACT
Objective To investigate the protective effects of stilbene glycoside(2,3,5,4'-tetrahydroxy-stilbene-2-O-β-D-glucoside,TSG) on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mice model of Parkinson's disease(PD).Methods Mice were randomly divided into the blank control group,the negative control group,the TSG high-dose group,the TSG low-dose group and the positive drug group(n=20 each).Mice were weighted daily to observe the changes of body weight,and mice motor and behavior function were tested by open field test.Level changes of α/β synuclein in brain cortex,cerebellum,midbrain,and hippocampal were detected by Western blot.Results Compared with the blank control group,the negative control group showed that the body weight was decreased (P ＜ 0.05).Compared with the negative control group,the body weight was increased in the TSG high-and low-dose groups and the positive drug group (P ＜ 0.05).The spontaneous behavior was impaired in the negative control group.Compared with the blank control group,the negative control group showed that the open field test showed traveled distance over a 10-min period was significantly shortened at 1 st,7th,28th days after testing(all P＜0.05).The trajectory of motor axons indicated that mice in the negative control group showed dyskinesia,but the groups of positive drug and high-and low-dose of TSG could reverse this dyskinesia.Compared with the blank control group,brain α/β synuclein protein levels were increased in the negative control group,and decreased in positive drug and TSG high-and low-dose groups (P ＜0.05).Conclusions Stilbene glycosides exert neuroprotective effects in MPTP-induced mice model of PD.
ABSTRACT
Objective To investigate the anti-tumor effects of total saponins,extracted from stems and leaves ofParispolyphyllavar.yunnanensis. Methods Taking mouse stomach carcinoma MFC cell line,human mammary cancer cell line(MCF-7)and human cervical carcinoma cell line(Hela),and their tumor-bearing mice as models,the antitumor activity was carried out in vitro and in vivo. CCK-8 assay was used to determine the inhibitory effect in vitro. The tumor-bearing mice model was induced by tumor cell vaccination in normal mouse forelimb left axillary subcutaneous and these mice were randomized into NS group,cytoxan group(30 mg/kg),saponins high-dose,medium-dose and low-dose groups(60,30 and 15 mg/kg). They were given intraperitoneal injection once a day for consecutive 15 days. The tumor inhibition rate and survival of the tumor-bearing mice were measured. Results Saponins,extracted from both aboveground and underground ofP.polyphyllavar.yunnanensis could significantly inhibit the growth of MFC,MCF-7 and Hela cells in time- and dose-dependent manners. The tumor weight in each drug treated group was significantly lower than that in the control group. Conclusion Saponins,extracted from both aboveground and underground ofP.polyphyllavar.yunnanensis have antitumor activity.