1.Effect of sodium selenite on Treg cells in peripheral blood mononuclear cells in patients with Graves disease
Chinese Journal of Immunology 2015;(6):814-817
Objective:Recently,selenium was used for the treatment of Graves disease. However,there has been no reports that selenium affected the immune function of Graves disease at the cellular level so far. It is reported the effect of sodium selenite on Treg cells in peripheral blood mononuclear cells in patients with Graves disease in the present study. Methods:AFS were used to detect the level of serum selenium;PBMC( Peripheral blood mononuclear cells) were extracted,then,cultured with sodium selenite. Foxp3 mRNA expression was tested by Real-time fluorescence PCR,and ELISA was used to detect the secretion of IL-35. Results:The serum sodium selenite levels of GD group are significantly lower than the HC group;The expression of Foxp3 mRNA and secretion of IL-35 are both increased. Conclusion:It shows sodium selenite could improve the state of immune disorders by recovering the function of Treg cells.
2.The Investigation of Relations between the Serum Levels of Leptin and TNF-? and Malnutrition in Chronic Obstructive Pulmonary Disease
Honghui YANG ; Shenghua SUN ; Chun LIU
Journal of Chinese Physician 2001;0(01):-
Objective To investigate the effects of serum leptin and tumor necrosis factor-?(TNF-?) on nutrition states in patients with chronic obstructive pulmonary disease (COPD). Methods The serum leptin and TNF-? levels were examined. Body mass index (BMI) and percent age of normal body weight(NW%) were measured. The correlation between leptin and other parameters was analysed. Results Serum leptin and TNF-? levels in acute exacerbation of COPD were significantly higher than those in the stable patients with COPD and control (P
3.Plasma cytokines in the patients with acute graft-versus-host disease and significance
Xinyue LIU ; Haiyan YANG ; Chun ZHANG
Chinese Journal of Organ Transplantation 1996;0(03):-
Objective To study the relationship between type 1 and type 2 cytokines and human acute graft-versus-host disease (aGVHD).Methods In 20 patients undergoing allogeneic peripheral blood stem cell transplantation (allo-PBSCT), plasma concentrations of interleukin-18 (IL-18), interleukin-2R (IL-2R), tumor necrosis factor-a (TNF-?) and interleukin-10 (IL-10) were measured by using enzyme-linked immunosorbent assay (ELISA).Results All the patients achieved engraftment. Eight cases deve- loped grade Ⅰ-Ⅱ aGVHD and 3 cases developed Ⅲ-Ⅳ aGVHD. The concentrations of IL-18 and IL-2R in the patients with aGVHD were significantly higher than those without aGVHD. The levels of IL-18 were correlated with the severity of aGVHD; The levels of TNF-? showed no difference between the patients with or without aGVHD; The concentrations of IL-10 in the patients with aGVHD were significantly declined but in those without aGVHD were significantly increased.Conclusion Type 1 and type 2 cytokines play an important opposite role in development of aGVHD.
4.Cloning and Expression of EGFR Tyrosine Kinase and Construction of the Screening Model for the Enzymatic Inhibitors
Yang ZHANG ; Chun-Ping LIU ; Yuan LI ;
China Biotechnology 2006;0(10):-
As a member of tyrosine kinases(TK) family,Epidermal growth factor receptor(EGFR) has an activity of intrinsic protein tyrosine kinase,which plays an essential role in the regulation of signal transduction in the cells.Due to the abnormal expression of EGFR-TK,the certain type cancers may developed and progressed.Based on that,the inhibitors of EGFR-TK could be effective medicines for the treatment of cancer.The EGFR-TK domain was amplified by RT-PCR with RNA of HUVCEs cells as the template and expressed in E.coliBL21(DE3) using plasmid pET30a as vector.The recombinant protein was purified with the affinity chromatography(Ni-NTA),which was identified to have kinase activity catalyzing the substrate phosphorylated with ATP in the enzymatic reaction.Using the recombinant EGFR-TK as target,the screening model for enzymatic inhibitors was constructed.
6.Study on Mechanism of HL-60 Cell Apoptosis Induced by DMDAI-L
Bin CAO ; Yuan LIU ; Chun ZENG ; Xiaoye YANG ; Bin YANG
China Pharmacist 2015;(2):186-189
Objective: To explore the effect and mechanism of DMDAI-L in inducing the HL-60 cells apoptosis. Methods:Caspase-3 activity in HL-60 cells was measured with the enzymatic visible substrate DEVD-pNA. The fluorescence changes of mito-chondrial membrane potential (△Ψm) in HL-60 cells were investigated with the fluorescent probe JC-1. Results:The caspase-3 activ-ity was significantly increased in HL-60 cells after the DMDAI-L treatment at the concentration of 1. 25, 2. 5, 5, 10 and 20μg·ml-1 for 24h(P<0. 05). DMDAI-L could significantly reduce the mitochondrial membrane potential in HL-60 cells. Conclusion: The mechanism of DMDAI-L in inducing HL-60 cells apoptosis may involve the activation or regulation of caspase-3 activity as well as the reduction of mitochondrial membrane potential in HL-60 cells within certain concentration and time range.
7.Temperament and Self-esteem of Children Aged 8~12
Ying-chun ZHU ; Sen-yang LANG ; Jin LIU ; Jun YANG
Chinese Journal of Rehabilitation Theory and Practice 2006;12(3):201-202
ObjectiveTo study the level of temperament and self-esteem of children aged 8~12 in Beijing city,as well as their interaction and influenced factor.Methods203 school children aged 8~12 were assessed with Carey's temperament questionnaire(8~12:MCTQ) and The Self-Esteem Scale(SES).ResultsTemperament and self-esteem of school children aged 8~12 were associated with the parental behavior,especially with work style of their fathers.The rhythmicity was found to be negative correlated to the self-esteem scores,and the intensity of reaction was found to be positive correlated to the self-esteem scores.ConclusionParents' behavior and family environment were important to the temperament and self-esteem of school children.
8.Impact and quality of life of minimally invasive surgery combined with catheter attract for patients with cere-bral hemorrhage
Xiang LIU ; Haitao JIANG ; Chun YANG ; Dong LIU ; Xianping CHEN
Journal of Regional Anatomy and Operative Surgery 2016;25(6):438-441
Objective To analyze the impact and quality of life of minimally invasive surgery combined with catheter attract surgery on patients with cerebral hemorrhage.Methods A total of 90 patients with cerebral hemorrhage in our department from February 2013 to De-cember 2014 were randomly divided into invasive group and the control group.Minimally invasive surgery group were given to cerebral hemor-rhage minimally invasive surgery combined with catheter attract surgery,the control group received traditional craniotomy.The postoperative recovery,nerve function scores,quality of life and morbidity between two groups were compared.Results The operation time and edema vol-ume of tissue postoperative 7 days in minimally invasive surgery group was significantly lower than those of the control group.The hematoma clearance rate 1 day after surgery was higher than that of control group,with statistically significant difference(P <0.05).NIHSS scores of two groups were gradually decreased 7 d,15 d,30 d after surgery(P <0.05).NIHSS scores of the minimally invasive surgery group 7 d,15 d, 30 d after surgery were lower than that of control group,with statistically significant difference(P <0.05).The scores of vitality,physiological function,physical function,general health,bodily pain,emotional function,social function,mental health after 6 months of the surgery in the min-imally invasive group was higher than those of control group,with statistically significant difference(P <0.05).The rate of postoperative pulmo-nary infection,electrolyte imbalance,gastrointestinal bleeding in MIS group were lower than those in the control group,with statistically signifi-cant difference(χ2 =5.400 0,4.405 7,4.615 4,P <0.05).Conclusion Minimally invasive surgery combined with catheter attract surgery can improve neurological function and quality of life for patients with intracerebral hemorrhage, and reduce the incidence of complications.
9.Ratio of peak early to late diastolic filling velocity of the left ventricular inflow is associated with left atrial appendage thrombus formation in elderly patients with acute ischemic stroke and sinus rhythm
Ling LIU ; Huazhao DENG ; Sigan ZHONG ; Fei YANG ; Chun XIAO
Journal of Chinese Physician 2013;(6):751-754
Objective To investigate the useful parameters of transthoracic echocardiography (TTE) for the diagnosis of stroke subtypes in patients with acute cerebral infarction.Methods One hundred and one acute ischemic stroke patients met all of the following criteria including ≥50 years of age,normal sinus rhythm on admission,and transesophageal echocardiography (TEE) within 7 days from the onset.The clinical significance of the TEE parameters on admission was examined for identifying intracardiac thrombus formation as follows; left atrial dimension,left ventricular end-diastolic dimension,percentage fractional shortening,left ventricular mass index,ratio of the transmitral inflow velocities (E/A),and the deceleration time of the E wave.Results There were 28 patients with E/A ≥ 1.0 (70 ± 12) years old and 73 with E/A < 1.0 (73 ± 10) years old.No patients showed pulmonary congestion on chest radiography.There were no significant differences in age,TTE parameters,and plasma levels of brain natriuretic peptide between the two groups.Patients with E/A≥ 1.0 had higher incidence of left atrial appendage (LAA)thrombus formation and/or spontaneous echograhic contrast than those with < 1.0 (25.0% vs 5.5%,x2 =7.95,P <0.01).A significant relationship was found between E/A and emptying flow velocity of the LAA (r =-0.569,P <0.01).Multivariate logistic regression analysis showed E/A was an independent predictor for LAA thrombus (risk ratio 1.531 per0.1 increase,95% confidence interval 1.129-2.076,P =0.0002).Conclusions Increased level of E/A on admission was associated with the occurrence of left atrial appendage thrombus formation in patients with acute ischemic stroke.
10.Application of role-play test in caring nursing service
Chun YANG ; Xingzhi HUANG ; Guixiu LIU ; Xia XU
Chinese Journal of Practical Nursing 2008;24(9):10-12
Objective To make nurses understand the essential factors of caring nursing service and satisfy the requirement of in-hospital patients. Methods To establish the plan of role-play test(RPT).The roles of patients were played by nurses. They experienced the caring requirement of patients, true feeling, the state of physiology and psychology, etc. Then we discuss and analyze the collected information to consummate measures of caring nufing service. Results The RPT deeped the nurses' understanding about essential factors of caring nursing service. The nursing quality and patients' satisfaction degree were improved compared with those of before(P<0.05).The nursing complaints and service quality were also increased. Conclusion Application of RPT proved to be an effective way to deepen the caring nursing service.