ABSTRACT
This study aimed at exploring the mechanism of the rapid antidepressant effects of Yueju pill on depression of Parkinson's disease (DPD).The fast antidepressant effects of Yueju pill in this study was evaluated by behavior tests,such as open field test (OFT),tail suspension test (TST),forced swimming test (FST) and sucrose preference test (SPT) according to the modeling method of subacute DPD in the literature.In vitro experiment was implemented using PC12 cells.Moreover,the protective effects of Yueju pill on 1-methyl-4-phenylpyridinium (MPP+) induced neural injury with the engagement of cAMP response element binding protein (CREB) were expounded.As a result,it was found that the immobility time of the mice in the model group was significantly longer than that in the normal group in TST and FST tests (P ＜ 0.01),and the SPT ratio of mice in the model group remarkably decreased (P ＜ 0.01).In addition,the immobility time of DPD mice was shortened in the FST test after administering Yueju pill (P ＜ 0.05),while the SPT ratio was increased (P ＜ 0.01).Yueju pill took the effects on the third day after a single administration.The phosphorylation of CREB (p-CREB) in MPP+ induced PC12 cells was decreased in comparison with the model group,while the expression of p-CREB was up-regulated with the administration of Yueju pill (P ＜ 0.01).In conclusion,DPD was quickly mitigated after the treatment of Yueju pill,the activation of CREB signaling pathway and its neuroprotective effects may be the mechanism behind it.
ABSTRACT
Aim To observe the rapid antidepressant effect of Yuejuganmaidazao Decoction on postpatum de-pression offspring , and analyze its influence on the Akt and mTOR expression .Methods After postpartum de-pression model was established , the offsprings were randomly divided into the following groups: control group(CTL-F1,n =8), vehicle group (Veh,n =8) and YG group ( YG, n =8 ) .Veh group was treated with vehicle , YG group was treated with Yueju gan-maidazao Decoction(8.3 g· kg -1 ).Forced swimming test(FST) was measured 24 hours after single adminis-tration.The phosphorylation and total level of Akt and m-TOR in the hippocampus was detected by Western blot.Results The immobility time in YG group was significantly shorter than that in Veh group ( P <0.01 ) , and the expression of p-Akt and p-mTOR in the hippocampus was significantly increased ( P <0.05 ) .Conclusion Yuejuganmaidazao Decoction may rapidly alleviate depression-like behaviors of PPD offsprings through upregulation of Akt and mTOR ex-pression .