1.Inhibitory effect of immunosuppressive agent FTY720 on hepatocellular carcinoma Hepal-6 in vitro experimental study
Wei XUE ; Haoliang ZHAO ; Jiefeng HE ; Haibo YANG
Cancer Research and Clinic 2009;21(6):371-373
Objective To investigate the inhibitory effect of immunosuppressive agent FRY720 on hepatocellular carcinoma Hepal-6. Methods Hepal-6 cells were cultured, and divided into 4 groups, namely control group and 0.1 μg/ml, 10 μg/ml, 100 μg/ml quality concentration groups. The cells were treated by the drugs for 24 to 48 hours respectively. The inhibitory rate of the cells was measured by MTT assay, and cell cycle and cell apoptotic rate were detected by flow cytometry (FCM). Results The ability of tumor cell growth were inhibited by FTY720 after 48 h. The maximal inhibition rate was 62.10 %, The apoptosis ratio was increased when FTY720 was 0.1-100 μg/ml, and it was 4.07 %, 8.16 %, 19.84 % respectively. FTY720 significantly prolonged cell G1 phase. Conclusion FTY720 could inhibit the growth of hepatocellular carcinoma, arrest the cell in G1 phase, and increase apoptosis.
2.Observation of the effect of alprostadil combined with valsartan in the treatment of chronic glomerulonephritis proteinuria
Xiaoyan XUAN ; Aicheng YANG ; Zian LIANG ; Jiefeng LI ; Baoan WANG
Chinese Journal of Primary Medicine and Pharmacy 2014;21(11):1676-1677
Objective To observe the clinical efficacy of alprostadil combined with valsartan in treatment of chronic glomerulonephritis proteinuria.Methods 78 patients with chronic glomerulonephritis proteinuria were randomly divided into two groups,and each group had 39 cases.The control group was given conventional treatment,while the observation group was given alprostadil combined with valsartan on the basis of the control group.The clinical outcomes were compared between the two groups.Results The total effective rate of the observation group was 92.31%,which was significantly higher than 74.36% of the control group (x2 =9.825,P < 0.05).After treatment,the 24h Upro,BUN and SCr of the observation group were (1.00 ± 0.39) g/24h,(7.11 ± 0.15) mmol/L and (80.86 ± 0.65) μmol/L,which were significantly lower than those of the control group [(1.30 ± 0.48) g/24h、(9.18 ± 2.21) mmol/L and (98.71 ± 4.34) μmol/L],the differences were statistically significant (t =9.32,7.83,7.12,all P < 0.05).Conclusion Alprostadil combined with valsartan in the treatment of chronic glomerulonephritis proteinuria has significant effect,and it can significantly alleviate clinical symptoms,improve renal function,which should be widely applied in clinical.
3.HCC serum associated proteins screened by SELDI-TOF-MS analysis
Jiefeng CUI ; Rong YANG ; Yinkun LIU ; Xiaonan KANG ; Cheng HUANG ; Ruixia SUN ; Yang LI
Chinese Journal of Laboratory Medicine 2010;33(3):213-218
Objective To screen potential serum HCC associated proteins with low molecular weight and low abundance for better understanding the pathological mechanism of HCC and discovering new biomarkers.Methods All serum samples were collected from 81 HBV-related HCC patients,43 chronic hepatitis B patients and 36 cirrhosis patients.Serum protein fingerprint profiles were first generated by selected WCX2 protein chip integrating with SELDI-TOF-MS,and then normalized and aligned by Ciphergen SELDI Software 3.1.1 with Biomarker Wizard.Comparative analysis of the intensity of corresponding protein fingerprint peaks in normalized protein spectra was performed.Some protein peaks with significant difference among HCC,cirrhosis and chronic hepatitis B groups were found.The reproducibility of the SELDI system was assessed before serum protein fingerprint profiles analysis.Results The intra-and inter-assay CV for intensity and m/z in this SELDI system were 17.46% and 0.024%,and 17.74% and 0.024% respectively.Total 128 protein fingerprint peaks between 2 000 to 30 000 Da were identified under the condition of signal to noise>5 and minimum threshold for cluster>20%.Eighty-seven proteins were found to significantly expressed between HCC and cirrhosis groups(P<0.05).Of the above differential proteins,forty-five proteins had changes greater than two fold,including 15 up-regulated proteins and 30 downregulated proteins in HCC sera.Between HCC and chronic hepatitis B groups,nine of fifty-two differential proteins(P<0.05) had intensities of more than two folds,including 2 up-regulated proteins and 7 downregulated proteins in HCC sera.Between cirrhosis and chronic hepatitis B groups,twenty-eight of seventynine significantly differential proteins(P<0.05) changed greater than two folds in intensity,including 17 up-regulated proteins in cirrhosis seru and 11 down-regulated proteins in chronic hepatitis B sera.Analysis of above leading differential proteins among three diseases using subtraction difference mode,the 5 common down-regulated proteins 2 870,3 941,2 688,3 165 and 5 483 m/z in HCC sera and 2 common up-regulated proteins 3 588 and 2 017 m/z in cirrhosis and HCC sera were screened.But no statistic difference in the level of protein 2 017m/z was found between HCC group and normal group inour previous study.Conclusion Because the interference of unspecific proteins from hepatitis B and cirrhosis could be eliminated partly in HCC sera through subtraction difference analysis,these 6 common differential proteins (2 870,3 941,2 688,3 165,5 483,3 588 m/z)have obvious advantages of increased specificity for evaluating the pathological state of HCC and might become promising candidate biomarkers in the diagnosis of HCC.
4.The study of the association of impairment of cognition and performance-based skills with clinical symp- toms in drug-na?ve first-episode schizophrenia patients
Dachun CHEN ; Kebing YANG ; Yanli LI ; Ning WANG ; Ying NIE ; Jiefeng CUI ; Xiangyang ZHANG
Chinese Journal of Nervous and Mental Diseases 2015;(1):26-31
Objective To evaluate cognitive impairment and performance-based skills and to explore their rela?tionships with clinical phenotypes in drug-na?ve first-episode patients with schizophrenia. Methods One hundred and forty-five inpatients and 65 healthy controls matched for age, gender and education were recruited. The MATRICS Con?sensus Cognitive Battery (MCCB), Stroop, digit span test, emotional recognition test, University of California, San Diego, Performance-based Skill Assessment (UPSA) and Positive Negative Syndrome Scale scale (PANSS) were used to evaluate cognitive function, life skill and symptoms, respectively. Results Compared with the controls, total score of MCCB and scores of 10 subscales, scores of digit span, emotional recognition and Stroop were significantly lower in patients (all P<0.05). The UPSA total score and scores of financial skill and communication skill were lower in patients than in controls (all P<0.05). Verbal memory, visual memory , Stroop, communication skill scores and total UPSA standard score were sig?nificantly higher in patients with paranoid subtype of schizophrenia than in patients with non-paranoid subtype of schizo? phrenia (all P<0.05). The score of MCCB associated with education years (OR=1.29, 95%CI: 1.13~1.47) and PANSS (OR=0.95, 95%CI:0.92~0.97). Conclusions First-episode, drug-naive patients with schizophrenia have markedly cog?nitive and performance-based skills deficits, which are associated with clinical symptoms. These deficits are differences between paranoid subtype and non-paranoid subtype of schizophrenia.
5.Effects of different culture media on Echinococcus multilocularis protoscoleces at different temperatures in vitro
Jiefeng ZHAO ; Haiyang XIA ; Xiaofeng YU ; Shijie ZHANG ; Xinyu PENG ; Hongqiang YANG
Chinese Journal of Zoonoses 2015;(3):244-246,250
In order to observe the effects of different culture media and temperature on protoscoleces of Echinococcus multi‐locularis ,they were randomly divided into RPMI‐1640 group ,D‐MEM group and M199 group ,and cultured in three degrees of temperature (4 ,25 and 37 ℃) with 10% fetal calf serum (FCS) .Protoscoleces were counted by light microscope with 0 .1%eosin staining ,and calculated survival rate (per 100 protoscoleces) everyday until all the parasites died .At the same time ,the average number of the preservation days was observed .The experiment results showed that the survival rate of protoscoleces in RPMI‐1640 and D‐MEM groups were higher than that in M199 group (P<0 .05) and there’s no significant difference between RPMI‐1640 group and D‐MEM group (P>0 .05) .The survival rate of protoscoleces in RPMI‐1640 group at 4 ℃ and 37 ℃and D‐MEM group at 25 ℃ were higher ,but there was no significant effect of 4 ,25 and 37 ℃ on the survival rate of proto‐scoleces (P>0 .05) .Significant difference were found in the survival rate of protoscoleces on the 3rd day and the 9th day in these three groups (P<0 .05) .The average number of the preservation days were 34 days in RPMI‐1640 group at 4 ℃ ,36 days in D‐MEM group at 25 ℃ and 23 days in M199 group at 4 ℃ .It was concluded that the effects of different culture media and tem‐perature on protoscoleces are different ,and the RPMI‐1640 at 4 ℃ and D‐MEM at 25 ℃ are more suitable for culturing proto‐scoleces in v itro .
6.Age impact in mouse model of secondary hepatic alveolar echinococcus
Haiyang XIA ; Jiefeng ZHAO ; Qikun WANG ; Li LI ; Jingxia TANG ; Shijie ZHANG ; Xinyu PENG ; Hongqiang YANG
Chinese Journal of Zoonoses 2014;(7):723-726,732
Age impact in mouse model of secondary hepatic alveolar echinococcus was investigated in this research . Twenty-nine 8-week-old ,twenty-five 18-week-old and twenty-five 28-week-old female mice were anesthetized with 20% ure-thane by intraperitoneal injection and then transhepatically injected by Echinococcus multilocularis (E .m) tissue suspension through skin incision and abdominal muscle to liver in all three groups to establish mouse model of secondary hepatic alveolar e-chinococcus .Results showed that the survival rates for the three groups of mice were 62 .1% ,84% and 68% ,respectively (P>0 .05) .The E .m infection rates in liver were 72 .2% ,71 .4% and 76 .5% ,respectively (P>0 .05) .The diameter of E .m cysts in liver were 0 .915 ± 0 .103 cm ,1 .247 ± 0 .112 cm and 1 .215 ± 0 .197 cm ,respectively (P>0 .05) .The mass of E .m cysts in liver were 0 .332 ± 0 .035 g ,0 .532 ± 0 .155 g and 0 .382 ± 0 .085 g ,respectively (P> 0 .05) .HE stain showed no difference in pathology .Results indicated that the establishment of secondary hepatic alveolar echinococcus model by using transhepatic injection through skin incision and abdominal muscle of 18-week-old mice was capable of simplifying operation and improving the survival rate of the mice .
7.Screening of serum biomarkers related to the tumor recurrence following liver transplantation for hepatocellular carcinoma
Yifeng HE ; Jian ZHOU ; Yinkun LIU ; Shuangjian QIU ; Xiaowu HUANG ; Jiefeng CUI ; Zhi DAI ; Guohuan YANG ; Jia FAN
Chinese Journal of Organ Transplantation 2010;31(6):360-364
Objective To appraise and compare protein expression profiles in sera of patients without or with recurrence following liver transplantation for hepatocellular carcinoma (HCC) using SELDI-TOF-MS technique,and establish the diagnostic and predictive model. Methods A total of 76 sera (41 from disease free survival patients and 35 from recurrence individuals) were collected pretransplantation and differentially expressed proteins were identified by SELDI-TOF-MS. The intensity values for each peak were analyzed by Biomarker Wizard Software to screen serum proteome biomarkers related to the recurrence post-transplantation. By using Biomarker Patterns Software, the classification trees were generate. from randomly selected samples (30 fingerprints obtained from each group). The sensitivity and specificity of best decision tree were then chosen for blind test with 16 samples (5 from recurrence individuals and 11 from recurrence-free survival patients). Results There were significant differences only in tumor size and the presence of vascular invasion between recurrence group and recurrence-free survival group (P<0.05). According to serum protein fingerprints, a total of 368 protein peaks were identified at the mass-to-charge ratio (M/Z) value ranging from 2000 to 300 00. There were 22 significant differential proteins between two groups. Among them, 9 proteins were up-regulated and 13 proteins were down-regulated -espectively in recurrence group. The intensity values of differential proteins were input into BPS for classification tree analysis and the best performing tree could distinguish two groups successfully. As a result of blind assessment for this model,a sensitivity of 80.0 % (4/5) and specificity of 72.7 % (8/11) were obtained. Conclusion Some of differential proteins screened by SELDI-TOF-MS technique in the serum may be correlated with the prognoses of liver transplantation patients with HCC. The decision tree may be useful for the clinical application of formulating the indication for liver transplantation, detecting extrahepatic micrometastasis and setting up the diagnostic and treatment strategies.
8.Development and evaluation of questionnaire of mental health knowledge for non-psychiatric clinicians
Biao HAN ; Yizhuang ZOU ; Jing KONG ; Jiefeng CUI ; Manying LI ; Aili MA ; Lei HAN ; Hongzhen FAN ; Fude YANG
Chinese Mental Health Journal 2010;24(2):89-92
Objective: To develop the mental health knowledge questionnaire in order to know about the awareness of mental health knowledge in non-psychiatric clinicians. Methods: A sample of the 641 non-psychiatric clinicians from 2 tertiary general hospitals, 2 second-class general hospitals, and 1 community hospital were used for item analysis and internal consistency test; 38 cases were selected for the re-test interval of 2 weeks to test the test-retest reliability. And totally 99 psychiatrists finished the survey as controls. The awareness rates between the non-psychiatric and psychliatric clinicians were compared. Results: The questionnaire included 46 items and consis-ted of 6 subscales, involving anxiety, schizophrenia, depression, dyssomnia and psychological counseling, or-ganic brain disorder, and recognition for mental health service situation in general hospital The results of confirma-tory factor analysis showed that the ratio of chi-square and degree of freedom was below 3. The fitting indexes except GFI and AGFI were more than 0.90. The Cronbach's alpha coefficients ranged from 0.73 to 0.89, and test-retest Pearson correlation coefficient of reliabifity ranged from 0.59 to 0.78. Awareness rate was 47.6% in general hospital and 90.9% in psychiatric hospitals. Conclusion: The mental health knowledge questionnaire has good psychometric properties and may be applied in clinical studies.
9.Visual analysis of research status and hotspots of transitional nursing for adolescents with chronic diseases in foreign countries
Jiefeng YANG ; Qiugui BIAN ; Wenqin DING
Chinese Journal of Health Management 2022;16(6):395-400
Objective:To analyze the foreign research status and hotspots of transitional care for adolescents with chronic diseases.Methods:On December 31, 2021, Web of Science TM was searched for articles concerning transitional care for adolescents with chronic disease published between 2000 and 2021. Knowledge maps were used to analyze the included articles in terms of number, distribution of prolific authors and institutions, journals, research hotspots, frontiers and trends. Results:A total of 692 articles were included, the number of articles was increased from 2000 to 2021, with the largest in 2021 (76 articles). The most prolific country was the United States (358 articles). University of Toronto, University of North Carolina, Children′s Hospital of Philadelphia and Harvard University were the most prolific institution with high centrality (>0.1). Journals such as Pediatrics, J Adolescent Health, and J Pediatr Nurs published the largest number of articles, and Arch Pediat Adol Med had a total citation frequency>100 and high centrality (>0.1). In addition to the subject terms used in the search process of this study, the high-frequency keywords (>50 times) were “health care” “service” “health care transition” “quality of life” “experience” “need” “outcome” “transition readiness” and “adherence”. In keywords cluster analysis, the cluster whose time line extended to the recent two years were “quality of life” “program” “transition clinic” “adolescent health services” and “adherence”. Conclusions:In the field of transitional care for adolescents with chronic disease, studies mainly focus on patient needs, transitional experience, adherence, self-management, quality of life, etc. The research frontiers are transitional health management, disease care, construction and implementation of health care service program for adolescents with chronic disease.
10.Score analysis and quality evaluation of examination paper based on classical test theory for Introduction to Nursing and teaching reflections
Jiefeng YANG ; Xiu WEN ; Min YANG ; Wenhua JING ; Xiangyu CHEN
Chinese Journal of Medical Education Research 2020;19(10):1237-1240
Objective:To evaluate the quality of the final examination paper of the course Introduction to Nursing and analyze the students' performance, so as to provide objective basis for strengthening the course construction and continuously improving the teaching quality. Methods:SPSS 22.0 software was used to analyze the relevant data, descriptive statistics was carried out on the course scores and scores of different knowledge points of 58 nursing undergraduates in a college, and Pearson correlation analysis was used to analyze the relationship between students' examination scores and their usual scores. Based on the classical measurement theory, the difficulty coefficient, differentiation, reliability and validity of final examination papers were measured.Results:The average scores of students' usual performance, examination scores and total scores were 93.66, 67.07 and 75.19. The highest score of examination was 89, the lowest score was 52, the median was 65, the passing rate was 93.10%, and the number of students in 60-69 and 70-79 was 33 and 15 respectively. Among the 20 knowledge points examined, the passing rate of 10 knowledge points was less than 60%, and 5 of them<50%. There was a positive correlation between the test scores and the usual scores ( r=0.973, P<0.001). The difficulty coefficient of the final examination was P=0.329, the discrimination degree D=0.256, and the reliability r=0.734. Conclusion:The final examination are generally in line with the teaching requirements and are of good quality, but the final examination scores of the students are generally low. The students' usual scores are ideal, and their understanding, analysis and comprehensive application of knowledge points are poor.