1.Design and Construction of G2 Glycoprotein Multi-epitope Antigen Gene of Hantavirus
Dongjing YANG ; Jinying CHEN ; Xu SU
Journal of Environment and Health 1993;0(01):-
Objective To construct the multi-epitope antigen(mea) gene of G2 glycoprotein of Hantavirus SEO type L99 strain.Methods The B cell epitopes was chosen and connected by three-peptide GPG after the amino acid sequence of G2 protein was analyzed and predicted by bioinformatical soft wares.The corresponding gene mea was constructed by overlap PCR,and cloned into the prokaryotic expression plasmid pET32a(+).Results The mea gene was successfully constructed by the five epitopes being chosen.The recombinant plasmid pET32a-mea was acquired by directional cloning.Conclusion The mea and its expression system E.coli BL21/pET32a-mea were constructed for the first time.The foundation was laid for the expression of the mea and its immunological applications.
2.Our hospital's practice in the reform of the distribution system
Chen FU ; Su XU ; Jianwen CAO
Chinese Journal of Hospital Administration 1998;0(11):-
In order to arouse the working enthusiasm of the entire staff and give expression to the value of labor and skills, our hospital has implemented reform in the distribution system. Bonus given to clinical departments is linked both to the amount and quality of work and to economic profits; bonus to medico technical departments is given by means of deducting a percentage from the income and expenditure surplus in a way of progressive decrease; bonus given to functional departments is equivalent to 90% of the average bonus given to medical service departments; and bonus to logistical service departments is given, if possible, by the piece and mark. As a result of the reform, the distribution system has become more rational, the working enthusiasm and efficiency of the staff have been enhanced, operational income and income structure have improved, and social benefits bave been raised, with the satisfaction rate reaching over 90%. Of course, there still exist some difficulties in the reform.
3.Effects of recombinant human relaxin-2 on hepatic stellate cell proliferation, synthesis of Collagen Ⅰ,and mRNA expressions of TGF-β1 and CTGF in vitro
Zhen CHEN ; Junwang XU ; Su YAN ; Ke CHEN ; Xiude FAN
Journal of Xi'an Jiaotong University(Medical Sciences) 2017;38(1):44-47,57
ABSTRACT:Objective To validate that relaxin can resist hepatic fibrosis at the cellular level and explore its molecular mechanism in order to provide experimental basis for the treatment of liver cirrhosis.Methods Cultured HSC-T6s were treated with different concentrations (20,50 and 100 ng/mL)of recombinant human relaxin-2 (RLX-2).The proliferation of HSC-T6 was measured by MTT colorimetric assay.The content of type Ⅰcollagen in the cell culture supernatant of each group was detected by ELISA at 48 h of drug intervention;RT-PCR was used to detect the mRNA expressions of CTGF and TGF-β1 in HSC-T6 at 48 h of drug intervention.Results RLX-2 inhibited the proliferation of HSC and reduced type Ⅰ collagen content of HSC cells.It also inhibited the CTGF mRNA expression of HSC,but did not have a significant effect on the expression of TGF-β1 mRNA. Conclusion In the experiment of culturing HSC-T6 in vitro,RLX-2 may play a role in rat liver fibrosis by inhibiting cell proliferation and type Ⅰ collagen and CTGF mRNA expressions.
4.A study of intratumor microvessel density and lymph node micrometastasesof pN0 supraglottic laryngeal squamous cell carcinoma
Binghua LI ; Yaping XU ; Lizhong SU ; Mingyuan CHEN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2009;(18):824-826
Objective:To investigate the correlation between intratumor microvessel density (IMVD) and lymph node micrometastases. Method: IMVD and lymph node micrometastases were stained with CD105 and CK19 antibody by immunohistochemical method of SABC respectively. Result:IMVD marked with CD105 antibody corre-lated with T stage and lymph node micrometastases(P<0.01). Conclusion: The result show that IMVD marked with CD105 antibody highly correlated with lymph node micrometastases. It could be a index to evaluate the prog-nosis of patients with pN_0 supraglottic laryngeal squamous cell carcinoma.
5.The relationship between aggressive behaviors and clinical features in the inpatients with schizophrenia
Fangfang XU ; Jinxiang ZHANG ; Min CHEN ; Zhonghua SU ; Zhiyin YANG
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(2):126-128
Objective To explore the relative factors of aggressive behaviors in inpatients with schizophrenic.Methods 178 cases of continuously admitted schizophrenic patients were divided into attack group and non aggressive group according to the aggressive behavior of preadmission.Single factor analysis and multi factor regression analysis was applied to two groups in situation(such as age,gender,education level,course of disease,past aggressive behaviors and so on),Brief Psychiatric Rating Scale (BPRS) and Eysenck Personality Questionnaire (EPQ).Results By single factor analysis,attack group had significantly longer course of disease(7.73±6.67) than non aggressive group (5.22 ± 5.47,t =2.631,P< 0.01).The score of hostile suspicious factor in BPRS (13.73 ± 3.098) in attack group was significantly higher than that in nonaggressive group(11.47±3.93) (t=4.063,P< 0.01),but anxiety factor (7.18± 3.583) was significantly lower than that in nonaggressive group (8.70 ± 3.89) (t=2.679,P<0.01).The score of E scale of EPQ(11.99±4.340) in attack group was significantly higher than that in nonaggressive group(10.67±4.293) (t=1.990,P<0.01).Attack group's proportion of patients of previous attacks (71.1%) was significantly higher than that in non aggressive group (16.0%),(x2 =39.082,P< 0.01).(2) Logistic analysis showed that hostile suspicious factor in BPRS and past aggressive behaviors entered the regression equation.Condusions Aggressive behavior in schizophrenic patients occurs mainly with psychiatric symptoms and the past history of aggressive behavior.The patients should be treated actively to control the symptoms and prevent the disease recurrence.
6.Testing and its clinical significance of plasma neutrophil gelatinase-associated lipocalin in patients with acute pancreatitis
Jun XU ; Su YAN ; Jiaqing SHEN ; Tingting XIA ; Weichang CHEN
Chinese Journal of Digestion 2014;34(3):175-177
Objective To quantify the concentration of peripheral blood plasma neutrophil gelatinase-associated lipocalin (NGAL) in patients with acute pancreatitis (AP) and to explore its value in assessment of the severity of AP.Methods From June 2011 to March 2012,83 patients with AP were selected,among those 43 cases were mild acute pancreatitis (MAP) and 40 were severe acute pancreatitis (SAP).The control group included 30 healthy individuals.The peripheral blood of patients with AP and healthy controls was collected,and plasma was isolated after centrifuged.The concentration of NGAL in plasma was detected by enzyme-linked immunosorbent assay (ELISA).The t-test was performed for comparison between groups.The correlation between the concentration of NGAL in plasma and clinical parameters of AP was analyzed by Spearman rank order correlation analysis.The diagnosis value of the concentration of NGAL in SAP was evaluated by receiver operating characteristic (ROC) curve and area under the curve (AUC).Results The concentration of plasma NGAL in AP group ((10.30± 5.97)nmol/L) was higher than that in healthy control group ((1.94±1.35) nmol/L) and the difference was statistically significant (t=11.924,P<0.01).The concentration of plasma NGAL in SAP group ((14.61 ±5.28) nmol/L) was higher than that in MAP group ((6.27±-3.09) nmol/L) and healthy control group,the differences was statistically significant (t=8.677 and 14.539,both P<0.01).The concentration of plasma NGAL of AP patients was positively correlated with acute physiology and chronic health evaluation-Ⅱ score,Ranson score,bedside index for severity in acute pancreatitis score,computed tomography (CT) severity index,C-reactive protein,white blood cells and the days of hospitalization (r=0.651,0.556,0.514,0.620,0.320,0.458 and 0.346,all P<0.05).The area under the ROC curve of plasma NGAL concentration in diagnosis of SAP was 0.926 (95%CI:0,870-0.983).The cutoff value of plasma NGAL level in diagnosis of SAP was 8.44 nmol/L.The sensitivity and specificity was 87.5 % and 88.9%,respectively.Conclusions Plasma NGAL level is correlated with the severity of patients with AP.NGAL may be one of the markers for the early diagnosis of SAP.
7.Observations on the Efficacy of Pricking-cupping Bloodletting in Treating Cervical Spondylotic Radiculopathy
Chunyan CHEN ; Linbao GE ; Mingshu XU ; Yingjie ZHANG ; Xiaolan SU
Shanghai Journal of Acupuncture and Moxibustion 2016;35(7):857-860
Objective To investigate the clinical efficacy of Yang’s pricking-cupping bloodletting in treating cervical spondylotic radiculopathy and its effect on trapezius tension.Methods Seventy-eight patients with cervical spondylotic radiculopathy were randomly allocated to treatment and control groups, 39 cases each. The treatment group received pricking-cupping bloodletting and the control group, conventional acupuncture plus cupping. The nerve function was scored, the visual analogue scale (VAS) score was recorded and trapezius tension was measured in the two groups before and after treatment. The clinical therapeutic effects were compared between the two groups.Results There were statistically significant pre-/post-treatment differences in the nerve function score, the VAS score and trapezius tension in the two groups (P<0.01). There were statistically significant post-treatment differences in the VAS score and trapezius tension between the treatment and control groups (P<0.05). The total efficacy rate was 94.9% in the treatment group and 89.7% in the control group. There was a statistically significant difference in theclinical therapeutic effect between the two groups (P>0.05).Conclusions Yang’s pricking-cupping bloodletting can effectively improve pain symptoms and trapezius tension in patients with cervical spondylotic radiculopathy.
9.Diagnosis and treatment of post-orthotopic liver transplantation complications (a report of 7 cases)
Huanwei CHEN ; Zuojun ZHEN ; Shuying SU ; Zhouming XU ; Yong JI
Chinese Journal of General Surgery 2001;10(2):146-148
Objective To investigate the experience of diagnonsis and treatment of post-orthotopic liver transplantation (OLT) complications. Methods The clinical data of diagnosis and treatment of post-OLT complications in 7 cases were analysed retropectively. Results Complications following OLT including intracranial hemorrhage (1/7), renal failure (1/7), intrabdominal hemorrhage (2/7), pulmonary infection and/or, pleurorrhea (5/7), adult respiratory distress syndrome (1/7), billirubinemia (5/7). Five patients survived while two died. Conclusions Proper prevention and management can effectively reduce post-OLT complications, Timely diagnosis and suitable therapy would improve the result of liver transplantation.
10.The relationship between carotid atherosclerosis, characterization of plaque, position and ischemic stroke: a retrospective case-control study
Zhiqiang DONG ; Xu CHEN ; Jingjing SU ; Limei CAO
International Journal of Cerebrovascular Diseases 2011;19(3):199-203
Objective To investigate the relationship between the carotid intima-media thickness(IMT),the characterization of atherosclerotic plaque as well as the degree of carotid stenosis and ischemic stroke.Methods Tbe patients with first-ever acute ischemic stroke (ischemic stroke group)detected by color Doppler ultrasonogaphy and the outpatients and hospitalized patients without ischemic stroke in the same period(control groupl were collected retrospectively.The demogaphic data,vascular risk factors,and characterization of atherosclerotic plaque were compared between the two groups.Ischemic stroke group was divided into stroke subtype groups according to the TOAST classification.Their characteristics of carotid atherosclerosis were corapared.Restdt,A total of 200 patients with first-ever acute ischemic stroke and 200 patients without ischemic stroke were included in the study.The carotid IMT in the ischemic stroke group WaS sigaificantlv thicker than that in the control group(left side:1.04±0.22 mm vs.0.69±0.13 mm,t=7.34,P<0.01;right side:1.05 ±0.21 mm vs.0.71±0.16 mm,t=7.43,P<0.01).The proportions of the patients with moderate and severe stenosis were significantly higher(moderate stenosis:38% vs.14%,x1=7.64,P<0.01:SCVele stenosis:27% vs,6%,x2=7.93,P<0.01),and the proportion of patients with mild stenosis was no significant difference.The detection rate of carotid plaque in the ischemic stroke group was significantly higher than that in the control group(87.0% vs.31.5%,X2=7.01,P<0.01).The numbers of unstable plaque(tipid soft plaque,flat plaque,and mixed plaque)in the ischemic stroke group were 301(65.3%),and significantly mole than 65(31.7%)in the control group(x2=6.30,P<0.01).There was no significant difference in the distribution of carotid plaque between the two groups.The plaques were most common at the carotid artery bifurcation.Compared with those in other stroke subtypes.such as cardioembolism,small-vessel occlusion.stroke of other determined etiology,and stroke of undetermined etiology,the cm'otid IMT(left side:F=22.34,P<0.01;right side:F=21.41,P<0.01),and the proportion of Upid soft plaque(x2=7.93,P<0.01),carotid severe stenosis(x2=6.83,P<0.01),carotid occlusion(x2=14.00,P<0.01)in stroke patients with large-artery atherosclerosis were significantly incleased.Condusiom Carotid IMT,the numlbers of unstable Plaque as well as the degree of carotid stenosis were associated with the occurrence of isehemic stroke.