1.Role of IL-6 induced human peripheral blood monocytes tissue factor expression in the pathogenesis of chronic rejection
Jun LI ; Mei HONG ; Tie-Cheng PAN ;
Chinese Journal of Organ Transplantation 2005;0(10):-
Objective To study the induction of IL-6 on expression and activity of tissue factor (TF)in peripheral blood monocytes(PBMCs).Methods rhIL-6 100 ng/L and rhIL-6 100 ng/L+ rhIL-6 MoAb 10?g/L were used respectively to stimulate the PBMCs for 24 h,PBMCs without any stimulation as control group,to study the changes of antigen content,mRNA expression and the ac- tivity of the TF.Results The antigen content,mRNA expression and activity of TF were increased significantly in 100 ng/L rhIL-6 group as compared with rhIL-6 100 ng/L+rhIL-6 MoAb 10?g/L and control groups(P<0.01).Conclusions rhIL-6 can induce the increase of antigen expression,activity and mRNA expression in PBMCs,and these effects can be suppressed successfully by rhIL-6 MoAb. This study demonstrated that there was potential relations between cytokines and thrombogenesis, which may play an important role the pathogenesis of chronic rejection.
2.Effects of different methods of anesthesia and analgesia on early postoperative cognitive dysfunction after non-cardiac surgery in the elderly
Lifeng PAN ; Dongxin WANG ; Jun LI
Journal of Peking University(Health Sciences) 2003;0(05):-
Objective: To determine if different methods of anesthesia and analgesia will influence the incidence of early postoperative cognitive dysfunction (POCD) after non-cardiac surgery in the elderly. Methods: One hundred and three elderly patients undergoing elective abdominal surgery were randomly allocated to receive either general anesthesia followed with postoperative intravenous analgesia (general anesthesia group, 53 cases) or combined general-epidural anesthesia followed with postoperative epidural analgesia (combined general-epidural anesthesia group, 50 cases). Cognitive function was assessed preoperatively and 7 days postoperatively using a battery of nine neuropsychological tests. A postoperative deficit in any test was defined when decline by more than or equal to 20% of the preoperative value of that test occurred. Any patient showing deficit in 2 or more tests was defined as having postoperative cognitive dysfunction. Results: Ninety-two patients completed both preoperative and postoperative neuropsychological tests. On day 7, POCD occurred in 20/45 patients (44.4%) in the general anesthesia group and in 23/47 patients (48.9%) in the combined general-epidural anesthesia group. No significant difference was found between the two groups. Logistic regression analysis showed that short duration of education and operation of general surgery were independent risk factors of the occurrence of early POCD. Conclusion: Early POCD occurred in 46.7% of the elderly patients undergoing abdominal surgery. However, there was no significant difference between the effects of two different methods of anesthesia and postoperative analgesia on the incidence of POCD. Short duration of education and operation of general surgery were risk factors of early POCD.
3.Clinical significance of VEGF-C and VEGFR-3 expression in non-small cell lung cancer.
Jun, LI ; Mei, HONG ; Tiecheng, PAN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(5):587-90
The relationship between vascular endothelial growth factor-C (VEGF-C)/vascular endothelial growth factor receptor 3 (VEGFR-3) expression and clinicopathologic features of the patients with non-small cell lung cancer (NSCLC) was investigated. The expression of VEGF-C and VEGFR-3 was assessed in 65 patients with NSCLC by immunohistochemistry. The significance of VEGF-C and VEGFR-3 expression was analyzed statistically. The results showed that VEGF-C and VEGFR-3 were highly expressed in cytoplasm and membrane in lung cancer tissues with the positive rate being 55.4 % and 52.3 % respectively, while there was no expression in the normal lung tissues. The expression of VEGF-C was significantly increased in adenocacinoma as compared to other types of NSCLC (P<0.05). The VEGFR-3 expression was closely related with lymph node metastasis (P<0.01) and TNM stage (P<0.05). There was a positive correlation between the VEGF-C and VEGFR-3 expression in NSCLC patients (r=0.658, P<0.01). It is suggested that VEGFR-3 plays an important role in the lymphatic metastasis of NSCLC. The interaction between VEGF-C and VEGFR-3 may be deeply involved in the mechanism of lung cancer metastasis.
4.Role of nuclear factor-κB signaling pathway in inflammatory lung diseases
Xiuhe PAN ; Chaobo LIU ; Jun SUN ; Yan LI ; Mingcai LI
Chinese Journal of Pharmacology and Toxicology 2016;30(7):762-769
Nuclear factor(NF)-κB is widely expressed in various types of tissue cells. Abnormal activation of NF-κB signaling pathway can lead to the initiation and progression of asthma,chronic ob?structive pulmonary disease(COPD)and other lung inflammatory diseases,but inhibition of its activity can effectively alleviate the occurrence and development of these diseases. In this paper ,we review biological characteristics of NF-κB,role of NF-κB signaling in asthma,COPD and other inflammatory lung diseases,and potential application of NF-κB inhibitors in clinical treatment of these inflammatory lung diseases. It will provide a valuable reference for further study on pathogenesis,prevention,and control of lung inflammatory diseases.
6.Clinical study of loading dose of phenobarbital in neonatal hypoxic-ischemic encephalopathy
Jun PAN ; Jiang HU ; Jijian XIE ; Tao LI
Chinese Journal of Postgraduates of Medicine 2011;34(36):1-3
Objective To investigate the clinical effect of loading dose of phenobarbital in neonatal hypoxic-ischemic encephalopathy(HIE).Methods Three hundred and fifty-six patients with neonatal HIE were randomly divided into treatment group and control group by systematic sampling,with 178 patients in each group.Two groups were given comprehensive therapy,with or without convalsions,early application of loading dose of phenobarbital in 20 mg/kg intramuscular injection,12 h beck to a maintenance dose 5 mg/(kg·d)in treatment group,while a conventional dose of phenobarbital in 5 mg/(kg·d)was used in control group after convulsion happened.Clinical effect of short-term and long-term were observed.Results The rates of eelampsia,choloplania and total effect was 11.2%(20/178),7.9%(14/178)and 87.1%(155/178)in treatment group,and 68.0%(121/178),50.6%(90/178)and 77.5%(138/178)in control group,there were significant differences between two groups(x2 =6.403,78.459 and 8.308,P < 0.05).DQ score in treatment group was higher than that in control group(P< 0.05).The patients in two groups were followed up to age 18 months,the deformity rate in treatment group[7.9%(14/178)]was lower than that in control group[28.1%(50/178)],there was significant difference between two groups(x2 =29.085,P < 0.05).Conclusion Loading dose of phenobarbital is very effective to treat neonatal HIE.
7.Effect of poractant alfa on kinetics and gas exchange in respiratory distress syndrome
Jun PAN ; Jiang HU ; Jijian XIE ; Tao LI
Chinese Journal of Postgraduates of Medicine 2011;34(34):27-29
ObjectiveTo study exogenous surfactants disaturated phosphatidyl choline (DSPC) kinetics in full term infants with respiratory distress syndrome(RDS) who were treated with different dose of poractant alfa.MethodsOne hundred and twenty-two full term infants with RDS undergoing mechanical ventilation were divided into group A (80 cases) and group B (42 cases) by simple random method,who received 100 mg/kg or 200 mg/kg poractant alfa mixed with DSPC.Clinical manifestation and respiratory parameters were recorded,and DSPC half-life period and pool size and endogenous DSPC synthesis rate were calculated.ResultsFifty-six infants (70.0%) received a second dose after(25 ± 11) h and 18 infants (22.5%) received a third dose after(41 ± 11 ) h in group A.Twelve infants ( 28.6% ) received a second dose after (33 ± 8) h and 2 infants (4.8%) received a third dose in group B.DSPC half-life period in group B was longer than that in group A[the fast:(32 ± 19) h vs.(15 ± 15) h;the second:(43 ±32) h vs.(21 ± 13) h],there was significant difference (P< 0.01 or < 0.05).DSPC synthesis rate and pool size before the first and second doses had no difference between the two groups.But the oxygenation index at the first and the second dose in group B was less than that in group A,there were significant differences (P < 0.01 or < 0.05).ConclusionPoractant alfa given to full term infants with RDS at a dose of 200 mg/kg results in a longerDSPC half-life period,fewer retreatments,and better oxygenation index values.
8.Construction of a three-dimension model on evaluation of human resources for military medical sciences
Pan LI ; Dongsheng ZHAO ; Jun REN ; Songjun WANG
Military Medical Sciences 2014;(9):690-693
Based on a correct understanding of the related concepts and system of the evaluation of human resources for military medical sciences ( EHRMMS), this thesis established a three-dimension model of EHRMMS that is composed of the evaluation goal, evaluation subject and evaluation object, and analyzed the factors that affect the crucial parameters in the model.We also analyzed the features and regularity of the evaluation model, and tentatively explored the application of the model.
9.Detection of cytomegalovirus in peripheral blood mononuclear cells of patients with drug eruptions
Shuanggeng LI ; Guanzhi CHEN ; Jungang XIAO ; Jun WANG ; Min PAN
Chinese Journal of Dermatology 2015;48(1):57-59
Objective To investigate the role of human cytomegalovirus (CMV) in the occurrence of drug eruptions.Methods Peripheral blood samples were collected from 44 patients with drug eruptions (including 13 severe cases) and 50 healthy human controls.Taqman fluorescent real-time quantitative PCR (RT-PCR) was performed to determine the positive rate and load of CMV DNA in peripheral blood mononuclear cells (PBMCs).Enzyme-linked immunosorbent assay (ELISA) was conducted to detect anti-CMV IgM antibodies in sera.Results The positive rate of CMV DNA was significantly higher in the patients than in the controls (65.91% (29/44) vs.28.00 % (14/50),x2 =13.552,P < 0.05),significantly different among patients with severe drug eruptions (11/13),patients with mild drug eruptions (58.06% (18/31)) and the controls (x2 =16.153,P < 0.05).In addition,patients with severe drug eruptions showed a higher positive rate of CMV DNA compared with patients with mild drug eruptions (x2 =13.817,P < 0.05) and the controls (x2 =7.237,P < 0.05).CMV DNA load was significantly higher in the patients than in the controls ((28 183.829 ± 19 527.654) vs.(3 019.952 ± 1 760.952) copies,t' =8.517,P < 0.05).No significant difference was found in CMV DNA load between patients with severe drug eruptions ((554 813.389 ± 722 642.498) copies),patients with mild drug eruptions ((13 290.558 ± 14 082.356) copies)) and the controls (P > 0.05).The positive rate of anti-CMV IgM antibodies was similar between the patients and controls (13.64% (6/44) vs.6.00% (3/50),P > 0.05),but significantly different among patients with severe drug eruptions (4/13),patients with mild drug eruptions (6.45%,2/31) and the controls (x2 =7.832,P < 0.05),and significantly higher in patients with severe drug eruptions than in the controls (x2 =6.409,P < 0.05).Conclusions CMV infection exists in patients with drug eruptions,and might be a factor associated with the initiation and aggravation of drug eruptions.
10.Variances of the Gene Expression in Adipose Tissue of NAFLD Rats Intervened with the Compound of Polygonum Caspidatum
Qinglan JIANG ; Jun MA ; Jinyao PAN ; Yuyuan LI ; Xiuxia LEI
Journal of Medical Research 2006;0(11):-
Objective To detect the intervened effect of the compound of Polygonum caspidatum to the NAFLD rat models and analyze its mechanism at the level of gene expression.Methods The Wistar rats were fed with high fatty chow to induce NAFLD and intervened with the compound of Polygonum caspidatum.The mRNA relative level of leptin,adiponectin,tumor necrosis factor ?,resistin and uncoupling protein 2 in the adipose tissue of the intervenient and control rats was detected with RT- qPCR method.The data differences between two groups were analyzed in t-test.Results Comparing to the control group,the relative level of leptin mRNA in the intervenient group was significantly increased(P0.05).At the same time,the resistin and UCP2 mRNA didn’t been detected in all samples of these two groups.Conclusion Metformin hydrychloride can adjust the adipose metabolism in liver and improve the steatosis and inflammatory reaction in liver cell.