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ObjectiveTo explore the inhibitory effect of different concentration of baicalin （0， 100， 200， 400 μmol·L-1） on the proliferation of human gastric cancer SGC-7901 cells and the underlying mechanism. MethodSGC-7901 cells were treated with baicalin. Then methyl thiazolyl tetrazolium （MTT） assay was employed to examine the inhibitory effect of baicalin on the cells. At the same time， ferrostatin-1 （Fer-1） was added to observe the viability of cells after baicalin treatment. The expression of ferroptosis-related genes was detected by Real-time polymerase chain reaction （Real-time PCR） and Western blot. The content of malondialdehyde （MDA） and the level of glutathione （GSH） were detected respectively by MTT assay and enzyme-linked immunosorbent assay. The role of tumor protein 53 （p53）/solute carrier family 7 member 11 （SLC7A11） pathway in the regulation of ferroptosis was investigated respectively via overexpression and small interfering RNA （siRNA） methods. ResultCompared with the blank group， baicalin decreased the viability of SGC-7901 （P<0.05， P<0.01） in a dose- and time-dependent manner. The intervention of Fer-1 significantly alleviated the decrease of SGC-7901 cell viability caused by baicalin （P<0.01）. In addition， compared with the baicalin group， Fer-1+baicalin group showed decrease in MDA content and the mRNA and protein levels of prostaglandin-endoperoxide synthase 2 （PTGS2） in the cells （P<0.01）， and increase in GSH activity and mRNA and protein levels of glutathione peroxidase 4 （GPX4） （P<0.01）. The protein level of SLC7A11 in the baicalin group was decreased compared with that in the blank group （P<0.05， P<0.01） in a dose-dependent manner. Compared with the baicalin group， the reactive oxygen species （ROS） level and MDA content in SLC7A11-overexpressing cells were significantly decreased after baicalin treatment （P<0.01）， and the GSH activity was significantly increased （P<0.01）. The fluorescence intensity of p53 in the cells of the baicalin group was increased compared with that of the blank group （P<0.01）. Compared with the baicalin group， the expression level of p53 protein in the cells transfected with p53 siRNA was significantly decreased after baicalin treatment （P<0.01）， and the expression level of SLC7A11 was significantly increased （P<0.01）. ConclusionBaicalin can effectively inhibit the proliferation of SGC-7901 cells by regulating p53/SLC7A11-mediated ferroptosis.
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Objective To translate English version of the Questionnaire evaluating the Disability of Upper Extremities in daily activities among patients undergoing maintenance Hemo-Dialysis (QDUE-HD) and test the reliability and validity of QDUE-HD. Methods After translation, back translation, 2 rounds of Delphi expert advice and pre-investigation, the initial questionnaire was formed. Two hundred and eleven patients undergoing hemo-dialysis from 4 hospitals located in Suzhou, Wuxi, Shanghai and Zhejiang were investigated using the initial questionnaire. And reliability and validity of QDUE-HD were evaluated. Results Two common factors containing 10 items and 2 dimensions(i.e. gripping and upper and lower arm movements) were extracted by exploratory factor analysis. The rate of cumulative contribution was 69.473％. In addition, the content validity index, Cronbach α coefficients, half-fold coefficient and test-retest reliability coefficient of whole scale were 0.850, 0.906, 0.929 and 0.983, respectively. Conclusions The reliability and validity of QDUE-HD (Chinese version) are reliable and effective. This questionnaire is simple and convenient to use in clinic.
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Objective:To study the short-term effects,toxic side effects and immune function of Aidi injection adjuvant GP methods chemotherapy for advanced non-small cell lung cancer(NSCLC).Methods:130 patients with advanced NSCLC were divided into study group and the control group according to treatment methods.The study group were given Aidi injection +GP,and the control group only treated with GP.The short-term effects,toxic side effects gradeⅢ-Ⅳand immune function changes were compared between the two groups.Results:The overall response rate was 40.28%in study group,higher than 37.93% in control group(P>0.05).The two groups showed differences in the rates of leucocyte decrease,gastrointestinal reaction and platelets decrease(P0.05),while in the control group the levels of CD4,CD8 and CD4/CD8 changed more significantly than before(P<0.05).The two groups also produced differences in CD4,CD8 and CD4/CD8 after treatment( P<0.05 ) .Conclusion: The short-term effects of Aidi injection adjuvant GP chemotherapy regimen for advanced NSCLC is similar to only GP chemotherapy,but it can obviously reduce the incidence of toxic side effects and prevent the immune func-tion.
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This study is to determine the curative effect of beta-elemene emulsion on chemotherapy in the treatment of refractory/relapsed acute myeloid leukemia [AML]. In the beta-elemene emulsion plus HAA chemotherapy [harringtonine, aclacinomycin, Ara-c group] group, 120 cases received beta-elemene emulsion [400 mg] plus the HAA treatment. A 14-day treatment was a course of treatment, followed by an 8-14 day pause, and then the next course of treatment. The HAA treatment included Ara-c, 100 mg/m2, once every 12 h from day 1 to day 7; aclacinomycin, 20 mg/m2, from day 1 to day 7; and homoharringtonine, 4 mg/m2, from day 1 to day 7. The patients in the control HAA group received HAA treatment only. For both groups, effective antibiotics were given to patients when it was necessary. The total effective rate in the beta-elemene emulsion plus HAA group was 80.8%. But the total effective rate in the HAA only group was 52.9%. These results suggest that the beta-elemene emulsion plus HAA treatment has a much better curative effect in comparison with the HAA only treatment [P < 0.05]. Furthermore, beta-elemene emulsion has slightly adverse response, without causing blood and bone marrow depression. Beta-elemene emulsion has a curative effect in treatment of refractory/relapsed AML in combination with harringtonine, aclacinomycin, and Ara-c