1.A Study on Career Decision-making Difficulties Questionnaire for Undergraduate Students
Chinese Journal of Clinical Psychology 2001;0(03):-
Objective: To develop a cross-culture revision of career decision-making difficulties questionnaire(CDDQ) for undergraduate students. Methods: A total of 330 college students were tested with CDDQ. Results: ①Cronbach ? coefficients ranged from 0.68 to 0.84;②There were significant differences among different students. Conclusion: The psychometric properties of the inventory developed in this study are acceptable. It can be used as the instrument for measurement of undergraduates' career desicion making difficulties, However, revision should be made in accordance with the condition of China.
2.Establishment of the assessment system for blood transfusion and discussions on the method of clinical transfusion monitor
Xiaogang DU ; Lirong WANG ; Honglin WU
Chinese Journal of Hospital Administration 2014;30(1):42-45
Objective Discuss the methodology and significance of clinical transfusion assessment,establish an effective evaluation system for blood transfusion,identify rational indexes for the evaluation,and promote quality of clinical transfusion.Methods Development of the clinical blood transfusion assessment regulations,tightened blood transfusion approval system,enhanced medical record check for blood transfusion,better statistics for the data collected,and analysis of data in 2012 to compare changes in blood volume before and after tighter management in place.These efforts aim at improving the assessment system for optimal clinical blood transfusion.Results Compared to Jan.-June in 2012,patients discharged and surgical cases in Dec.of the same year dropped 2.15% and 0.73% respectively.However,the volume of blood transfusion decreased 22.7%,the percentage of blood transfusion for inpatients decreased from 8.78% to 7.17%,and the average use of blood for inpatients decreased from 0.73U to 0.57U.Conclusion Reasonable and scientific assessment for blood transfusion and better clinical blood use management can improve blood transfusion therapeutic efficacy and save blood resources.
3.Human umbilical cord blood mesenchymal stem cells differentiated into neuron-like cells in vitro
Hong XU ; Xifeng MA ; Lirong RUAN ; Bo YANG ; Yin DU
Basic & Clinical Medicine 2006;0(03):-
Objective The mononuclear cells(MNCs) were cultivated and expanded into mesenchymal stem cells(MSCs) from human umbilical cord blood,and the purpose of this study was to explore the biological characteristics and induced differentiation ability in vitro.Methods Human umbilical cord blood samples were obtained and the mononuclear cells were isolated from it,then inoculated the MNCs into 25-mm culture flasks containing DMEM/F12 medium.The morphology was observed under microscope.Nissl body staining was used,The passage 2,4,7 of the expanded MSCs were induced to differentiate to neuron-like cells.The expressions of nestin and neuron-specific enolase (NSE) on the treated cells were detected by immunocytochemical method.Results Nissl body staining was positive;Nestin expression was found in(51.2?3.2)% of the second,(34.6?2.7)% of the fifth,(11.3?3.3)% of the seventh passage of MSCs;NSE expression was found in(11.4?2.3)% of the second,(21.78?3.1)% of the fifth,(40.7?3.4)% of the seventh passage of MSCs.Conclusion Cord bloodMSCs possess some features of neural stem cells,and have the capacity to differentiate into neuron-like cells under proper conditions.
4.A case of angioleiomyoma in fingertip
Jie DU ; Lili ZHANG ; Jianxun HAO ; Lirong ZHAO
Chinese Journal of General Practitioners 2016;15(7):561-
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6.Establishment of in vitro metabolism of fentanyl by human liver microsomes in Chinese population
Junkai HOU ; Lirong ZHANG ; Quancheng KAN ; Wei ZHANG ; Zhisong LI ; Yingying DU
Chinese Journal of Anesthesiology 2014;34(12):1464-1467
Objective To establish in vitro metabolism of fentanyl by human liver microsomes in Chinese population.Methods Thirty patients undergoing elective operation on liver were enrolled in the study.Normal liver specimens were obtained during removal of liver and gall for preparation of liver microsomes (by calcium precipitation) which were used for establishment of the liver microsomal incubation system for fentanyl.Fentanyl served as the metabolic substrate in the incubation reaction.The concentration of fentanyl in the incubation medium was detected at 0,5,10,15,20 and 30 min of incubation using HPLC-UV.Sufentanil served as the interior label element.The n-hexane-ethanol absolute was used to extract the sample.The chromatographic column used in this method was Grace C18 (4.6 mm × 250.0 mm,5 μm).The mobile phase was methyl cyanide-KH2PO4 buffer solution with the flow rate of 1.0 ml/min,detection wavelength of 205 nm and sample size of 20 μl.Linear regression analysis was performed by using the least-squares method.The specimens of the blank incubation system with the final concentration of fentanyl 0.6,2.4 and 10.0 μg/ml were obtained to determine the recovery,precision and stability.The metabolic rate of fentanyl in human hepatic microsomes was calculated.Results Fentanyl and the interior label element sufentanil were separated completely,and the retention time were 5.730 and 9.336 min,respectively.Endogenous matrix of microsomes did not interfere with the analysis.Regression equation was C =0.945 8A-0.140 4,R2 =0.999 2.C was the concentration of fentanyl,and A was the peak area ratio of fentanyl versus sufentanil.The recovery of incubation system with low,medium and high concentrations of fentanyl was 85%-115%,and relative standard deviation (RSD) was less than 10%.The RSD of intra-and inter-day precision and stability was less than 10%.The method was proved to meet the requirements of biological sample analysis.The metabolic rate of fentanyl was (1.6 + 0.8) nmol/min per milligram protein in human hepatic microsomes of 30 cases.Conclusion The in vitro metabolism of fentanyl by human liver microsomes is convenient,and the detectability is high,so it can be used for the research on the in vitro metabolism of fentanyl in Chinese population.
7.Comparative Study for the Patients of Hypertensive Hypertrophic Cardiomyopathy in Elder age and the Patients of Hypertensive Left Ventricular Hypertrophy
Lu HUA ; Haiyan DU ; Yunfeng NIU ; Zhimin WANG ; Yongkang TAO ; Lirong YAN ; Chaomei FAN ; Yishi LI
Chinese Circulation Journal 2014;(6):432-435
Objective: To compare the clinical characteristics and plasma level of N-terminal pro-brain natriuretic peptide (NT-proBNP) between the patients with hypertensive hypertrophic cardiomyopathy in elder age (HHCME) and the patients with hypertensive left ventricular hypertrophy (HTN-LVH).
Methods: Our work included 2 groups, HHCME group,n=47 and HTN-LVH group,n=44. Duplex Doppler echocardiography was performed to determine left atrial diameter (LAd), left ventricular end-diastolic dimension (LVEDd), interventricular septal thickness (IVST), left ventricular ejection fraction (LVEF), velocity of early diastolic period (VE) and velocity of end-diastolic period (VA) in mitral valve oriifce. Plasma level of NT-proBNP was measured by ELISA. The above indexes were compared between 2 groups.
Results:①Compared with HTN-LVH group, HHCME group presented decreased LVEDd and increased IVST, LVEF, allP<0.001. There were no signiifcant differences in VE/VA ratio and LAd between 2 groups, allP>0.05.②Plasma level of NT-proBNP was higher in HHCME group,P<0.01. With the adjusted age, gender, history of hypertension, LAd, IVST, left ventricular systolic and diastolic function, the level of NT-proBNP in HHCME group (1317.19 fmol/ml) was still signiifcantly higher than that in HTN-LVH group (526.19fmol/ml),P<0.01.
Conclusion: The plasma NT-proBNP level was higher in HHCME patients than that in HTN-LVH patients which indicated that HHCME patients may have worse prognosis. NT-proBNP might be helpful for differencing HHCME.
8.Application of bone metabolism markers tP1NP,beta-CTx and BAP in bone metastasis of lung cancer
Limin HAN ; Lirong WEI ; Yuzhen DU
Chinese Journal of Laboratory Medicine 2017;40(11):860-864
Objective To investigate the diagnosis, therapeutic monitoring and prognosis value of the total procollagen type 1 amino-terminal propeptide(tP1NP), beta-C-terminal telopeptide(β-CTx)and bone alkaline phosphatase(BAP)in the bone metastasis of lung cancer.Methods With the case-control study method, the serum levels of tP1NP, β-CTx and BAP in 196 lung cancer patients, including 109 patients with bone metastases,87 patients without bone metastases,and 106 healthy controls at the Shanghai Sixth People′s East Hospital affiliated to Shanghai Jiao Tong University between 2014 and 2015 were quantitatively detected by chemiluminescent immunoassay.Receiver operating characteristic(ROC)curve was calculated to assess the diagnostic value.Survival curve was performed by Kaplan-Meier method. Results The concentration of tP1NP,β-CTx and BAP in the lung cancer patients with bone metastasis were significantly higher than that in the lung cancer patients without bone metastasis(Z=-5.642,P<0.001;Z=-3.783,P<0.01;Z=-8.923,P<0.01).ROC curve analysis showed that the AUC of tP1NP, β-CTx and BAP were 0.874,0.776 and 0.678 respectively(P<0.05).The AUC of the combined three markers was 0.925(95%CI 0.867-0.963),with sensitivity of 77.11% and specificity of 98.11%.The levels of tP1NP and β-CTx were associated with the clinical response.The concentration of tP1NP,β-CTx were significantly decreased in patients achieved remission(t=4.607,P<0.05;t=5.355,P<0.05). Survival analysis showed that higher concentration of tP 1NP was correlated with poor prognosis[OR=3.287, 95%CI(1.118-9.661),P<0.05].Conclusions The levels of tP1NP,β-CTx and BAP cloud be used for the differential diagnosis of bone metastasis of lung cancer,and the combined usage was more effective. tP1NP and β-CTx cloud be used in therapeutic monitoring of lung cancer patients with bone metastasis. Moreover,tP1NP could be used as prognostic biomarker in lung cancer patients.
9. Effect of dexmedetomidine on mitochondrial dynamics in mice with endotoxin-induced acute lung injury
Jia SHI ; Lili WU ; Yanfang ZHANG ; Shihan DU ; Lirong GONG ; Jianbo YU
Chinese Journal of Anesthesiology 2019;39(9):1139-1142
Objective:
To evaluate the effect of dexmedetomidine on mitochondrial dynamics in mice with endotoxin-induced acute lung injury (ALI).
Methods:
Thirty clean-grade healthy adult male C57BL/6 mice, weighing 20-25 g, aged 2 months, were divided into 3 groups (
10. Role of heme oxygenase-1 on lipopolysaccharide-induced activation of NLRP3 inflammasomes in alveolar macrophages of rats
Lili WU ; Lirong GONG ; Dinghuan ZHAO ; Xiangyun LI ; Shihan DU ; Jianbo YU
Chinese Journal of Anesthesiology 2019;39(8):989-992
Objective:
To evaluate the role of heme oxygenase-1 (HO-1) on lipopolysaccharide (LPS)-induced activation of NOD-like receptor pyrin domain-containing 3 (NLRP3) inflammasomes in alveolar macrophages of rats.
Methods:
NR8383 cells of rat alveolar macrophages cultured