1.Analysis of examination paper of Natural Product Chemistry
Jufeng SUN ; Keke LI ; Hongjuan LI
Chinese Journal of Medical Education Research 2005;0(05):-
Objectives to evaluate the quality of examination paper of natural product chemistry of clinical pharmacy for Grade 2005 so as to feed back teaching information and provide gist for improving the teaching quality.Methods Selecting examination paper of all the students of clinical pharmacy to analyze.Results The examination achievement accords with normal distribution with average(78.64?11.12),difficulty 0.62 and discrimination 0.40.Conclusion The model of the paper has the full-scale distribution,the discrimination is good,and it evaluates the mastery level of the students quite objectively.The training of students analysis ability and comprehensive judging ability should be strengthened in the future.
2.Experimental Study on the Particle Closure of a Injector with Filtering Apparatus to 3 Kinds of Chinese Medicinal Injection
Changling DING ; Fengrun SUN ; Yu WANG ; Keke LI ; Chunjian WANG
China Pharmacy 2001;0(09):-
OBJECTIVE:To study the change of particles of Chinese medicinal injection added to different kinds of infu-sions fluid before and after filtration.METHODS:Particle analysator was adopted to measure the particles of Xueshuantong injection,Yinzhihuang injection,Yuxingcao injection before and after filtration and30minutes after being mixed with0.9%Sodium Chloride injection,5%glucose injection,and10%glucose injection respectively.RESULTS:The number of particles in all kinds of unfiltered mixture increased significantly while those of filtered ones remarkably decreased.CONCLUSION:It is recommended that when intravenous drip of Chinese medicinal injection in the clinic was used,particles addition should be considered.
3.A qualitative study on psychological stressors of pregnant women with chronic HBV infection
Xianxian ZANG ; Yumei SUN ; Jianju LI ; Ping JI ; Keke LIN ; Li SU
Chinese Journal of Practical Nursing 2012;28(25):70-72
Objective To explore the psychological stressors of pregnant women with chronic HBV infection.Methods Using phenomenological method of qualitative study,there were 9 pregnant women with chronic HBV infection participated in the study and their mental stress was investigated by deep interview.Results Five main psychological stressors of pregnant women with chronic HBV infection emerged:fear of children being infected; anxious about giving birth in the hospital for infectious diseases; having no idea of selecting the mode of delivery and feeding pattern; worrying about their own health; to feel nervous about playing the role of mothers.Conclusions Healthcare workers should make appropriate health guidance and psychological supports to alleviate the psychological distress combined with features of pregnant women with HBV infection.At the same time,it is necessary to make change of public misunderstanding of hepatitis B,so as to create a fair and friendly social atmosphere for all the hepatitis B patients.
4.Strain Screening for Bioconversion of Glycerol to Lactic Acid and Optimization of Culture Medium
Anan HONG ; Keke CHENG ; Yan SUN ; Zhen CHEN ; Feng PENG ; Canming LIU ; Dehua LIU
Microbiology 2008;0(08):-
A strain, Escherichia coli AC-521, which could efficiently covert glycerol to lactic acid, was isolated from soil samples. A series of morphological and biochemical characteristics and sequence analysis of 16S rDNA reveal that it belongs to Escherichia coli. Through orthogonal experiment of L16(45), the optimum medium compositions were determined as initial glycerol 70 g/L, yeast extract 4 g/L, peptone 7 g/L, (NH4)2SO4 10 g/L, and K2HPO4 2.5 g/L. The 5 L fermenter fed-batch fermentation was performed under optimal conditions, giving 74.5 g/L lactic acid with a yield of 0.87 mol/mol glycerol after 80 hours.
5. Comparison of efficacy and safety between rifapentine and rifampicin in the treatment of tuberculosis
Mingchong XU ; Keke XU ; Zhiming SUN
Chinese Journal of Primary Medicine and Pharmacy 2019;26(17):2083-2086
Objective:
To observe and compare the clinical efficacy and safety of rifapentine and rifampicin in the treatment of tuberculosis.
Methods:
From January 2015 to January 2018, 398 tuberculosis patients admitted to Tuberculosis Clinic of the Traditional Chinese Medicine Hospital of Cixi were selected and randomly divided into observation group and control group by complete Random Distribution Method, with 199 cases in each group.The two groups were given basic treatments such as isoniazid, pyrazinamide and ethambutol.On this basis, patients in the control group were treated with rifampicin, and the observation group was treated with rifapentine.The treatment time of both two groups was 6 months.The sputum bacterial conversion rate, lesion absorption rate and cavity closure rate were observed, and the clinical treatment effect and adverse reactions were compared between the two groups.
Results:
The sputum bacteria conversion rate (77.89%), lesion absorption rate (71.86%) and cavity closure rate (74.87%) in the control group were significantly lower than those in the the observation group(96.98%, 91.96%, 95.98%) (χ2=31.03, 27.13, 35.60, all
6.Preliminary study on the effect of lipopolysaccharide challenge on the genes expression of inflammatory factors in A549 cells
Tengsong ZHANG ; Qiao SUN ; Jie DI ; Keke WANG ; Yan QU
Chinese Critical Care Medicine 2019;31(4):464-467
Objective To explore the effects of lipopolysaccharide (LPS) on the expression of inflammatory genes in A549 cells line under different concentrations and different action time, this study laid the foundation for further establishment of acute respiratory distress syndrome (ARDS) cell model in the optimal concentration-time way. Methods A549 cells line was incubated routinely in 5%CO2 incubator at 37 ℃ with high glucose DMEM medium which included 10% fetal calf serum. Cells in logarithmic phase was cultured for passage, the cells was count to adjust cell density to (5-7)×105 and tile evenly in six-hole plate. Cells were cultivated for 2 days and once the cells confluence to 50%-60%, serum-free medium DMEM was changed for 12 hours cultivation. 10 mg LPS was added to 10 mL DMEM for oscillated blending to prepare 1 g/L stock solution. 0.5, 1.0 and 2.5 mL LPS stock solution was taken respectively and diluted LPS stock solution for 50 mL constant volume to prepare 0, 10, 20 and 50 mg/L LPS working solution. Then 0, 10, 20 and 50 mg/L LPS solution was added to react for 0, 1, 3 and 5 hours respectively. Reverse transcription-polymerase chain reaction (RT-PCR) was performed to examine mRNA expression of A549 cells line interleukins (IL-6, IL-1β) and tumor necrosis factor-α(TNF-α). LPS action of 10 mg/L for 0 hour was used as the time control group, LPS action of 0 mg/L for 1 hour was used as the concentration control group, and the gene expression was calculated with 2-ΔΔCt method. Results ① As to the time factor, with the same action of LPS concentration, the relative expression levels of inflammatory genes (IL-6, IL-1β and TNF-α) in A549 cells line after being treated with 10 mg/L LPS for 1 hour were significantly higher than those for 0 hour respectively [IL-6 mRNA (2-ΔΔCt): 5.71±0.42 vs. 1.00±0.00, IL-1β mRNA (2-ΔΔCt): 5.63±0.30 vs. 1.00±0.00, TNF-α mRNA (2-ΔΔCt): 5.38±0.61 vs. 1.00±0.00, all P < 0.01], and there were no significant changes in the expression levels of inflammatory genes in A549 cells line of other time groups. ② As to the concentration factor, with the same action time, the relative expression levels of inflammatory genes (IL-6, IL-1βand TNF-α) in A549 cells line after being treated with 10 mg/L LPS for 1 hour were significantly higher than with 0 mg/L for 1 hour respectively [IL-6 mRNA (2-ΔΔCt): 5.70±0.64 vs. 1.00±0.00, IL-1β mRNA (2-ΔΔCt): 6.25±0.25 vs. 1.00±0.00, TNF-α mRNA (2-ΔΔCt): 5.57±0.25 vs. 1.00±0.00, all P < 0.01], there were no significant changes in the expression levels of inflammatory genes in A549 cells line of other concentration groups. Conclusion The LPS concentration of 10 mg/L and the action time of 1 hour are the most suitable concentration-time conditions for establishing ARDS cell models of A549 cells line.
7.Myxoma virus induces apoptosis via PI3K/AKT pathway in endometrial cancer cells
Yun ZHOU ; Keke XU ; Rong GUO ; Min HUANG ; Hongjie SUN
Chinese Journal of Experimental and Clinical Virology 2014;28(4):271-273
Objective To investigate the apoptosis-inducing effect of myxoma virus in the human endometrial cancer HEC-IB cell line.Method A morphological analysis,nuclear condensation,and fragmentation of chromatin were monitored using immunofluorescence staining.Cell viability was assessed using MTT assay.Cell apoptosis and the apoptosis-related activation in the HEC-IB cell line were evaluated by flow cytometry and Western blotting,Result Suppressed the proliferation of the HEC-IB cell line in a time-dependent manner.The obvious inhibiting effect of MV on HEC-IB cells viability and its apoptosisinducing effect were observed.MV treatment downregulated the activation of protein kinase B (AKT) and the expression of glycogen synthase kinase 3 (GSK3),Conclusion MV induced apoptosis involved several molecular pathways.It may suppress constitutively activated targets of phoaphatidylinositol-3-kinases (PI3K) and AKT in the HEC-IB cell line,inhibiting the proliferation and induction of apoptosis.
8.Myxoma virus on endometrial cancer xenografts in nude mice inhibitory effect and mechanism
Yun ZHOU ; Keke XU ; Rong GUO ; Min HUANG ; Hongjie SUN
Chinese Journal of Experimental and Clinical Virology 2014;28(6):440-442
Objective Explored the effects of Myxoma virus in endometrial cancer of Nude Mouse animal model in vivo.Methods CD-1 Nude mice were randomly divided into three groups with 8 mice eachgroup and established mice models of endometrial carcinoma,and group M was administrated by1 × 107PFU MV(10 μl)QOD,the other 2 group (group D and group B) was administrated by 10μl dead virus and normalsaline,respectively.The time of tumorigenesis,tumorformationrates and the tumor volumes were observed,and theP13K,Akt expression changes in nude mice models of endometrialcarcinoma were assessed by immunohistochemical method.Results The endometrial cancer in all nude mice were established successfully.And tumor growth in group M were significantly decreased than group D and group B after injection,some tumor were lessened,the expression of PI3k,Akt were decreased in group M.Conclusion Administration of MV into mice models of endometrial carcinoma resulted in the reduction of tumor volumes by suppressing tumor angiogenesis and the PI3K/Akt path-way which is related to the tumor cell proliferation.
9.The roles of interleukin-17A in risk stratification and prognosis of patients with sepsis-associated acute kidney injury
Heng JIN ; Wei WEI ; Yibo ZHAO ; Ai MA ; Keke SUN ; Xiaoxi LIN ; Qihui LIU ; Songtao SHOU ; Yan ZHANG
Kidney Research and Clinical Practice 2023;42(6):742-750
The aim of this study was to evaluate the roles of interleukin (IL)-17A in risk stratification and prognosis of patients with sepsis-associated acute kidney injury (SAKI). Methods: We enrolled 146 sepsis patients (84 non-SAKI and 62 SAKI patients) admitted to the emergency department from November 2020 to November 2021. Patients with SAKI were differentiated based on the severity of acute kidney injury. All clinical parameters were evaluated upon admission before administering antibiotic treatment. Inflammatory cytokines were assessed using flow cytometry and the Pylon 3D automated immunoassay system (ET Healthcare). In addition, a receiver operating characteristic (ROC) curve was utilized to determine the prognostic values of IL-17A in SAKI. Results: The levels of creatinine, IL-2, IL-4, IL-6, IL-17A, tumor necrosis factor alpha, C-reactive protein, and procalcitonin (PCT) were significantly higher in the SAKI group than in the non-SAKI group (p < 0.05). The level of IL-17A revealed significant differences among stages 1, 2, and 3 in SAKI patients (p < 0.05). The mean levels of PCT, IL-4, and IL-17A were significantly higher in the non-survival group than in the survival group in SAKI patients (p < 0.05). In addition, the area under the ROC curve of IL-17A was 0.811. Moreover, the IL-17A cutoff for differentiating survivors from non-survivors was 4.7 pg/mL, of which the sensitivity and specificity were 77.4% and 71.0%, respectively. Conclusion: Elevated levels of IL-17A could predict that SAKI patients are significantly prone to worsening kidney injury with higher mortality. The usefulness of IL-17A in treating SAKI requires further research.
10.Research progress on application of systems engineering initiative for patient safety model in nursing field
Shanshan CHEN ; Yuhong SUN ; Hong GUO ; Keke LIN
Chinese Journal of Modern Nursing 2023;29(13):1790-1794
This paper expounds the origin and development of systems engineering initiative for patient safety (SEIPS) model, summarizes the research progress on application of this model in the nursing field at home and abroad in recent years and proposes relevant suggestions for the future research and application of this model in the nursing field, with a view to providing a reference for the application of systems engineering initiative for patient safety model in China.