AIM To investigate the effects of Shuyu Pills combined with evolimus on the epithelial mesenchymal transformation of triple negative breast cancer cells 4T1 and MDA-MB-231 induced by TGF-β1.METHODS The 4T1 and MDA-MB-231 cells were divided into the blank group and the induction group to induce the epithelial mesenchymal transformation with TGF-β1 cytokine treatment,followed by the assignment into the model group,the Shuyu Pills group,the everolimus group and the Shuyu Pills combined with everolimus group.CCK8 method,plate cloning method,cell scratch test and Transewll test were used to detect the proliferation,cloning formation,migration and invasion ability of the cells whose expressions of E-cadherin,N-cadherin,Vimentin,MMP9,MMP2 and pathway proteins PTEN,PI3K,Akt and mTOR were detected by Western blot.RESULTS Compared with the blank group,the induction group displayed a cell morphological change from epithelioid to stromal,decreased expression of E-cadherin protein(P＜0.01);and increased protein expressions of N-cadherin and Vimentin(P＜0.05).Compared with the model group,each group intervened with the medicine displayed decreased proliferation,clone formation,migration and invasion ability of both kinds of cells(P＜0.01);increased protein expressions of PTEN and E-cadherin(P＜0.05,P＜0.01);and decreased protein expressions of PI3K,Akt,mTOR,N-cadherin,Vimentin,MMP9 and MMP2(P＜0.05,P＜0.01);and more significantly in the Shuyu Pills combined with evolimus group(P＜0.05,P＜0.01).CONCLUSION With a more ideal effect than the single uses in inhibiting the TGF-β1-induced epithelial mesenchymal transformation of triple-negative breast cancer cells,the combination use of Shuyu Pills and everolimus may work through the regulation of PI3K/Akt/mTOR signaling pathway.

Objective To investigate the longitudinal clinical manifestations of acute radiation dermatitis(ARD)induced by particle therapy in nasopharyngeal carcinoma patients and to analyze associated risk factors.Methods A longitudinal study design was employed,encompassing nasopharyngeal carcinoma patients who underwent particle therapy at the Shanghai Proton and Heavy Ion Center from Mar to Sept 2023.Participants were assessed weekly(1-12 weeks)following the commencement of radiotherapy and at baseline,prior to the start of treatment.Data collection included the patient demographic questionnaire,the Radiation Therapy Oncology Group(RTOG)grading criteria for acute radiation injury,and the radiation-induced skin reaction assessment scale(RISRAS).Photographic documentation was utilized to capture changes in the irradiated skin area.The enrolled patients with nasopharyngeal carcinoma were grouped according to different particle therapy regimens.Survival data were analyzed by Log-rank and Cox regression methods,while a linear mixed-effects model was applied to repeated measures data.Results A total of 119 patients with nasopharyngeal carcinoma were enrolled.The overall incidence of ARD was 89.1%,which included 39.5%of grade 1,45.4%of grade 2 and 4.2%of grade 3.With the extension of time,the severity of ARD peaked at week 7(RISRAS=13.26±4.512),then began to decrease,ultimately reaching a lower level.Multiple Cox proportional hazards models were constructed,revealing that proton/heavy ion radiotherapy was associated with a lower risk of ARD compared to photon/proton plus heavy ion radiotherapy(HR=0.19,95%CI:0.04-0.92,P=0.039).Additionally,concurrent cisplatin/nedaplatin chemotherapy was identified as a risk factor for the development of ARD.Least squares(LS)mean differences were calculated at different time points,and the results demonstrated that the RISRAS scores of the photon/proton plus heavy ion group were consistently and significantly higher from week 5 to week 7 compared with the proton plus heavy ion group,and despite a decrease by week 8,statistical differences remained(week 5:LS mean difference 3.35,95%CI:0.94-5.76,P=0.007;week 6:LS mean difference 5.23,95%CI:2.20-8.26,P=0.001;week 7:LS mean difference 7.13,95%CI:3.67-10.59,P<0.001;week 8:LS mean difference 4.04,95%CI:0.74-7.34,P=0.017).Patients undergoing concurrent cisplatin chemotherapy had higher RISRAS scores from week 7 to week 8 of radiotherapy compared with those not receiving chemotherapy[week 7:adjusted mean difference(Adj.MD)4.20,95%CI:1.96-6.57,P=0.006;week 8:Adj.MD 2.79,95%CI 0.55-5.03,P=0.015].Similarly,patients on concurrent nedaplatin chemotherapy had higher RISRAS scores from weeks 6 to 7 compared with those not on chemotherapy(week 6:Adj.MD 3.75,95%CI:1.54-5.96,P=0.001;week 7:Adj.MD 4.41,95%CI:2.12-6.70,P<0.001).Skin care measures during treatment and accompanying symptoms such as weight loss were not statistically associated with the development of ARD.Conclusion Proton/heavy ion radiotherapy has a lower risk of ARD,while concurrent cisplatin/nedaplatin chemotherapy is a risk factor for ARD.

Objective To develop a hypoxia endurance testing system for aviation physiological training of pilots.Methods The hypoxia endurance testing system comprised a low-oxygen mixed gas generator,a pressurization system for low-oxygen mixed gas and a personal breathing apparatus.The low-oxygen mixed gas generator consisted of a main unit composed of an air compressor,a filter,a buffer tank,polymer membrane,a control module,sensors and regulators,wire cables,supporting hoses,etc.;the pressurization system for low-oxygen mixed gas was made up of a protective box,a cooling fan,a motor and a driver,a control module,a solenoid valve,a convergence block,a pressure gauge,etc.;the personal breating apparatus was composed of a gas cylinder,a pressure reducer,an oxygen supply regulator,etc.Forty-eight subjects were selected for hypoxia exposure tests to verify the effectiveness of the system.Results The system developed had the functions of low-oxygen gas preparation,pressurized filling and hypoxia experiment,and the experimental results indicated the acute hypoxia exposure by the system significantly caused signs and symptoms of hypoxia and weakened physiological functions.Conclusion The system developed gains advantages in high accuracy of gas volume fraction control,safety and remarkable effect of simulated hypoxia,and can be an effective tool for acute high-altitude hypoxia testing and training of pilots.[Chinese Medical Equipment Journal,2025,46(10):23-28]

Aim To explore the compatibility and po-tential mechanism of effective components of Biejia-Ezhu against triple negative breast cancer(TNBC)and verify it by experiments.Methods Effective compo-nents and targets of Biejia-Ezhu were obtained by TC-MSP and Swiss Target Prediction.Disease targets of TNBC were obtained from OMMI and GeneCards data-bases.The PPI network was constructed using STRING database.GO and KEGG path enrichment analysis was performed using DAVID database.Cytoscape3.9.1 software was used to construct the"drug-component-target-disease"network,screen key targets and compo-nents for molecular docking,and further verify the com-patibility of key components and targets in vitro.Re-sults ① A total of 71 effective components were iden-tified in the Biejia-Ezhu drug pair.There were 146 drug targets associated with the disease.A total of 113 signaling pathways were identified by KEGG analysis.The 71 potential active components of Biejia-Ezhu mainly acted on key targets such as mTORC1,ULK1,TNF,EGFR,ESR1,STAT3,HIF1A,and PTGS2.Mo-lecular docking results showed that glycine and curcu-min were the key active components of Biejia-Ezhu,and both had strong docking activity against key target proteins mTORC1 and ULK1.②The results of in vitro experiment showed that glycine combined with curcu-min significantly inhibited the proliferation and clonal formation ability of TNBC cells(P＜0.05),up-regula-ted the expression of autophagy marker LC3 Ⅱ/Ⅰ,down-regulated the expression of EGFR,down-regula-ted the expression of pathway protein mTORC1,p-mTOR,p-ULK1,and promoted the expression of path-way protein ULK1(P＜0.05).Conclusion The key component of Biejia-Ezhu against triple-negative breast cancer is glycine-curcumin,the mechanism of which may be related to the regulation of the mTORC1/ULK1 signaling pathway to promote autophagy.

Objective:To explore the influencing factors of major adverse cardio-cerebrovascular events(MACCE)after drug-eluting stenting in patients with coronary artery disease(CAD).Methods:Retrospective study data from First Affiliated Hospital of Zhengzhou University were extracted from the Dryad database.Patients were di-vided into MACCE group(n=160)and control group(n=880)according to whether MACCE occurred during fol-low-up.Clinical data including age,gender,fibrinogen(Fg)level etc.were compared between two groups,and the variables with significant differences between two groups were substituted into Logistic regression model to screen the influencing factors of MACCE after drug eluting stenting in CAD patients.Results:Compared with pa-tients in control group,those in MACCE group had significant higher Fg level[(3.6±1.1)g/L vs.(3.4±1.0)g/L],proportions of triple-vessel coronary disease(25.6％ vs.18.3％)and right coronary artery lesion(53.1％ vs.41.7％)(P＜0.05 or＜0.01).Multivariate Logistic regression analysis indicated that Fg level(OR=1.18,95％CI 1.01～1.37,P=0.039)was the independent risk factor of MACCE after drug eluting stenting in CAD patients.The risk of MACCE after drug eluting stenting in CAD patients significantly increased when the Fg level was＞3.27 g/L.Conclusion:High Fg level is the independent risk factor of MACCE after drug eluting stenting in CAD patients.

Aim To explore the compatibility and po-tential mechanism of effective components of Biejia-Ezhu against triple negative breast cancer(TNBC)and verify it by experiments.Methods Effective compo-nents and targets of Biejia-Ezhu were obtained by TC-MSP and Swiss Target Prediction.Disease targets of TNBC were obtained from OMMI and GeneCards data-bases.The PPI network was constructed using STRING database.GO and KEGG path enrichment analysis was performed using DAVID database.Cytoscape3.9.1 software was used to construct the"drug-component-target-disease"network,screen key targets and compo-nents for molecular docking,and further verify the com-patibility of key components and targets in vitro.Re-sults ① A total of 71 effective components were iden-tified in the Biejia-Ezhu drug pair.There were 146 drug targets associated with the disease.A total of 113 signaling pathways were identified by KEGG analysis.The 71 potential active components of Biejia-Ezhu mainly acted on key targets such as mTORC1,ULK1,TNF,EGFR,ESR1,STAT3,HIF1A,and PTGS2.Mo-lecular docking results showed that glycine and curcu-min were the key active components of Biejia-Ezhu,and both had strong docking activity against key target proteins mTORC1 and ULK1.②The results of in vitro experiment showed that glycine combined with curcu-min significantly inhibited the proliferation and clonal formation ability of TNBC cells(P＜0.05),up-regula-ted the expression of autophagy marker LC3 Ⅱ/Ⅰ,down-regulated the expression of EGFR,down-regula-ted the expression of pathway protein mTORC1,p-mTOR,p-ULK1,and promoted the expression of path-way protein ULK1(P＜0.05).Conclusion The key component of Biejia-Ezhu against triple-negative breast cancer is glycine-curcumin,the mechanism of which may be related to the regulation of the mTORC1/ULK1 signaling pathway to promote autophagy.

Objective:To explore the influencing factors of major adverse cardio-cerebrovascular events(MACCE)after drug-eluting stenting in patients with coronary artery disease(CAD).Methods:Retrospective study data from First Affiliated Hospital of Zhengzhou University were extracted from the Dryad database.Patients were di-vided into MACCE group(n=160)and control group(n=880)according to whether MACCE occurred during fol-low-up.Clinical data including age,gender,fibrinogen(Fg)level etc.were compared between two groups,and the variables with significant differences between two groups were substituted into Logistic regression model to screen the influencing factors of MACCE after drug eluting stenting in CAD patients.Results:Compared with pa-tients in control group,those in MACCE group had significant higher Fg level[(3.6±1.1)g/L vs.(3.4±1.0)g/L],proportions of triple-vessel coronary disease(25.6％ vs.18.3％)and right coronary artery lesion(53.1％ vs.41.7％)(P＜0.05 or＜0.01).Multivariate Logistic regression analysis indicated that Fg level(OR=1.18,95％CI 1.01～1.37,P=0.039)was the independent risk factor of MACCE after drug eluting stenting in CAD patients.The risk of MACCE after drug eluting stenting in CAD patients significantly increased when the Fg level was＞3.27 g/L.Conclusion:High Fg level is the independent risk factor of MACCE after drug eluting stenting in CAD patients.

Objective To develop a hypoxia endurance testing system for aviation physiological training of pilots.Methods The hypoxia endurance testing system comprised a low-oxygen mixed gas generator,a pressurization system for low-oxygen mixed gas and a personal breathing apparatus.The low-oxygen mixed gas generator consisted of a main unit composed of an air compressor,a filter,a buffer tank,polymer membrane,a control module,sensors and regulators,wire cables,supporting hoses,etc.;the pressurization system for low-oxygen mixed gas was made up of a protective box,a cooling fan,a motor and a driver,a control module,a solenoid valve,a convergence block,a pressure gauge,etc.;the personal breating apparatus was composed of a gas cylinder,a pressure reducer,an oxygen supply regulator,etc.Forty-eight subjects were selected for hypoxia exposure tests to verify the effectiveness of the system.Results The system developed had the functions of low-oxygen gas preparation,pressurized filling and hypoxia experiment,and the experimental results indicated the acute hypoxia exposure by the system significantly caused signs and symptoms of hypoxia and weakened physiological functions.Conclusion The system developed gains advantages in high accuracy of gas volume fraction control,safety and remarkable effect of simulated hypoxia,and can be an effective tool for acute high-altitude hypoxia testing and training of pilots.[Chinese Medical Equipment Journal,2025,46(10):23-28]

Objective To explore the cardiovascular protective effect of dapagliflozin on patients with heart failure with preserved ejection fraction(HFpEF)complicated with type 2 diabetes mellitus(T2DM).Methods Patients with HFpEF complicated with T2DM were divided into treatment group and control group according to cohort method.The control group was given 0.5 g of metformin hydrochloride tablet orally twice a day,while the treatment group was given 10 mg of dapagliflozin tablet orally once a day on the basis of treatment in the control group.Patients in both groups were continuously treated for 6 months.The clinical efficacy after treatment and blood glucose indicators[fasting blood glucose(FBG),2 hours postprandial blood glucose(2 h PBG),glycosylated hemoglobin(HbA1 c)],echocardiographic left ventricular parameters[left ventricular ejection fraction(LVEF),left ventricular end-diastolic diameter(LVEDD),left ventricular remodeling index(LVRI),left ventricular mass index(LVMI)]and serum N-terminal pro-brain natriuretic peptide(NT-proBNP),serum myocardial fibrosis indicators[matrix metalloproteinase-9(MMP-9),tissue inhibitor of metalloproteinase-1(TIMP-1)]before and after treatment were compared between both groups,and the safety evaluation was performed.Results Seventy-five cases in treatment group and 72 cases in control group were included.After treatment,the total effective rates in treatment group and control group were 93.33％(70 cases/75 cases)and 81.94％(59 cases/72 cases),respectively(P＜0.05).After treatment,the levels of FBG,2 h PBG,HbA1c,LVEF and LVEDD revealed no statistical differences between treatment group and control group(all P＞0.05).After treatment,LVRI values in treatment group and control group were(2.17±0.41)and(2.54±0.46)g·mL-2;LAMI values were(102.47±10.32)and(113.84±15.52)g·m-2;serum NT-proBNP levels were(652.38±208.26)and(993.24±302.69)pg·mL-1;MMP-9 levels were(142.52±21.67)and(168.73±25.88)mg·L-1;TIMP-1 levels were(3.68±0.84)and(3.12±0.91)μg·L-1,respectively(all P＜0.05).The total incidence rates of adverse reactions in treatment group and control group were 14.67％(11 cases/75 cases)and 12.50％(9 cases/72 cases),respectively(P＞0.05).Conclusion Dapagliflozin can improve ventricular remodeling and enhance cardiac function in patients with HFpEF complicated with T2DM,and it has a significant cardiovascular protective effect.

Acori Tatarinowii Rhizoma is the dried rhizome of Acorus tatarinowii in the family of Tennantiaceae, which has the efficacy of opening up the orifices and expelling phlegm, awakening the mind and wisdom, and resolving dampness and opening up the stomach. Modern studies have shown that volatile oil is the main active ingredient of Acori Tatarinowii Rhizoma, and α-asarone and β-asarone have been proved to be the active ingredients in the volatile oil of Acori Tatarinowii Rhizoma, with pharmacological effects such as anti-Alzheimer's disease, antiepileptic, anti-Parkinson's disease, antidepressant, anticerebral ischemia/reperfusion injury, anti-thrombosis, lipid-lowering, and antitumor. By summarising and outlining the pharmacological effects of α-asarone and β-asarone and elucidating the possible mechanisms of their pharmacological effects, we can provide theoretical basis for the further research and clinical application of Acori Tatarinowii Rhizoma.
Allylbenzene Derivatives ; Acorus/chemistry* ; Anisoles/chemistry* ; Rhizome/chemistry* ; Drugs, Chinese Herbal/chemistry* ; Humans ; Animals