Objective:To explore mechanism of Chaihu Longgu Muli Decoction and Ganmai Dazao Decoction in treatment of post-stroke depression(PSD)based on network pharmacology,molecular docking and animal experiment.Methods:TCMSP and other databases were used to predict active components and targets of Chaihu Longgu Muli Decoction and Ganmai Dazao Decoction.Targets of PSD were retrieved from PharmGKB and other databases,and"component-intersection target-disease"network was constructed by Cytoscape(v3.9.1)software.PPI network was constructed by String(v11.5)database,and GO enrichment and KEGG pathway analy-sis of intersection targets were performed by DAVID6.8 database.AutoDock vina(v1.1.2)software was used for molecular docking.Pymol(v 2.5)and other softwares were used to visualize optimal docking results.Animal experiments were setup in control group,model group,fluoxetine group,TCM group and TCM+fluoxetine group,neurobehavioral scores and expressions of neurotransmitters and inflammatory factors in brain tissues were detected.mRNA and protein expressions of key genes PPARG,MAPK3,AKT1,PIK3CA were detected by RT-qPCR and Western blot.Results:A total of 225 kinds of active ingredients of Chaihu Longgu Muli Decoction and Ganmai Dazao Decoction were obtained,which acted on 119 targets of PSD,among which key targets included MAPK3,AKT1,PIK3CA and PPARG,key pathways including MAPK signaling pathway,PI3K-Akt signaling pathway and etc.Compared with model group,MAPK3 mRNA and protein expressions were decreased,AKT1,PIK3CA,PPARG mRNA and protein expressions were increased in TCM group and TCM+fluoxetine group(P<0.05).Conclusion:Mechanism of Chaihu Longgu Muli Decoction and Ganmai Dazao Decoction in treatment of PSD may be related to inhibition of MAPK3 expression,promotion of AKT1,PIK3CA,PPARG expressions,alleviation of inflammatory response and oxidative stress in brain tissues.

Objective To investigate whether suffering from atrial fibrillation in different ages of people increasing the onset risk of new-onset acute myocardial infarction(AMI).Methods A prospective cohort study was conducted to select 96 624 Kailuan Group employees undergoing the health examination from June 2006 to October 2007 for including the study.The participants were followed up once a year,and the last fol-low-up date was December 31,2020,with a median follow-up of 14.01 years,and the endpoint event was new-onset AMI.The participants were divided into two age groups according to the age ≥60 years and the age＜60 years old,and divided into the atrial fibrillation group and non-atrial fibrillation group according to whether they had atrial fibrillation.The epidemiological investigation and anthropometric measurements were carried out on the participates.Whether atrial fibrillation was correlated to the onset of new-onset AMI in different age groups conducted the statistical analysis.Results Among the total participants,there were 411 cases in the atrial fibrillation group and 96 213 cases in the non-atrial fibrillation group.Among the participants＜60 years old,there were 121 cases in the atrial fibrillation group and 75 151 cases in the non-atrial fibrillation group.Among the participants ≥60 years old,there were 290 cases in the atrial fibrillation group and 21 062 cases in the non-atrial fibrillation group.In the total participants,the cumulative incidence rate of AMI in the atrial fibrillation group was higher than that in the non-atrial fibrillation group(5.68％vs.1.92％),and the difference was statistically significant(P＜0.05).In the participants＜60 years old,the cumulative incidence rate of AMI in the atrial fibrillation group was higher than that in the non-atrial fibrillation group(7.40％vs.1.43％),and the difference was statistically significant(P＜0.05).In the participants 60 year old,the cu-mulative incidence rate of AMI had no statistical difference between the atrial fibrillation group and non-atrial fibrillation group(4.54％vs.3.87％,P=0.547).In the whole participants,atrial fibrillation was a risk factor for new-onset AMI(HR=1.877,95％CI:1.177-2.991,P=0.008),and there was an interaction between age and atrial fibrillation(P=0.016).In the age stratification analysis,atrial fibrillation was a risk factor for new-onset AMI in＜60-year-old population(HR=3.029,95％CI:1.508-6.082,P=0.002).Conclusion Atrial fibrillation is an independent risk factor for new-onset AMI,especially to young and middle-aged people(＜60 years old).

OBJECTIVETo explore the possible mechanism and protective effect of BMSCs (bone mesenchymal stem cells) carrying superoxide dismutase (SOD) gene on mice with paraquat-induced acute lung injury.

METHODSTo establish the cell line of BMSCs bringing SOD gene, lentiviral vector bringing SOD gene was built and co-cultured with BMSCs. A total of 100 BALB/c mice were randomly divided into five groups, namely Control group, poisoning group (PQ group) , BMSCs therapy group (BMSC group) , BMSCs-Cherry therapy group (BMSC-Cherry group) , BMSCs-SOD therapy group (BMSC-SOD group) . PQ poisoning model was produced by stomach lavaged once with 1 ml of 25 mg/kg PQ solution, and the equal volume of normal saline (NS) was given to Control group mice instead of PQ. The corresponding BMSCs therapy cell lines were delivered to mice through the tail vein of mice 4h after PQ treatment.Five mice of each group were sacrificed 3 d, 7 d, 14 d and 21 days after corresponding BMSCs therapy cell lines administration, and lung tissues of mice were taken to make sections for histological analysis. The serum levels of glutathione (GSH) , malondialdehyde (MDA) , SOD, and the levels of transforming growth factor-β (TGF-β) and tumor necrosis factor-α (TNF-α) in lung tissue were determined. The level of SOD was assayed by Westen-blot.

RESULTSCompared with Control group, the early (3 days) levels of SOD protein in lung tissue of PQ group obviously decreased, and the late (21 days) levels of SOD obviously increased, while in therapy groups, that was higher than that in PQ group, and the BMSCs-SOD group showed most obvious (all P<0.05) . Compared with Control group, the levels of plasma GSH and SOD of PQ group and each therapy group wae significantly lower than those in Control group, while in therapy groups, those were higher than those of PQ group, and the BMSCs-SOD group showed most obvious (all P<0.05) .Compared with Control group, the level of plasma MDA, TNF-α and TGF-β in PQ group and therapy groups were significantly higher, while in therapy groups, that was lower than that in PQ group, and the BMSCs-SOD group showed most obvious (all P<0.05) . Lung biopsy showed that, the degree of lung tissue damage in each therapy group obviously reduced.

CONCLUSIONSOD is the key factor of the removal of reactive oxygen species (ROS) in cells, that can obviously inhibit the oxidative stress damage and the apoptosis induced by PQ, thus significantly increasing alveolar epithelial cell ability to fight outside harmful environment.

Acute Lung Injury ; chemically induced ; therapy ; Animals ; Antioxidants ; metabolism ; Cell Line ; Glutathione ; blood ; Lung ; pathology ; Malondialdehyde ; blood ; Mesenchymal Stem Cell Transplantation ; Mice ; Mice, Inbred BALB C ; Oxidative Stress ; Paraquat ; poisoning ; Superoxide Dismutase ; blood ; genetics ; Transforming Growth Factor beta ; metabolism ; Tumor Necrosis Factor-alpha ; metabolism