1.A study of modulation of white blood cell immune function by erythrocyte with a new system of immunological experimental system
Feng GUO ; Lezhi ZHANG ; Zhiyang CAI
Medical Journal of Chinese People's Liberation Army 1983;0(02):-
Objective To evaluate of red blood cell as giving instruction in whole white blood cell immunological activity by new nature experimental system of hemaimmune reaction rood map. Methods Plasma 0.3ml were added to whole blood cells (including: red blood cell and white blood cells) or white blood cells 0.2ml, and incubated for 1h at 37℃. The content of IL-8 and IL-12 was determined by enzyme linked immunadsorbent assay (ELISA) method. The expression level of CD4, CD8, CD35 and CXCR4 on white blood cells was determined by method of Flow Cytometry. Results The content of IL-8 (5.96?4.26) and IL-12 (9.84?2.23) in whole blood and plasma nature group was significantly lower than that (13.59?3.69?B?pg~ -1 ?ml~ -1 ) and (15.09?9.86?B?pg~ -1 ?ml~ -1 ) in white blood cell and plasma isolation group (P
2.Study on registrations of clinical trials of tumor necrosis factor α antagonist
Qunyan ZHANG ; Junhao GUO ; Hui CAI
Chinese Journal of Immunology 2017;33(4):579-583
Objective:To summarize and analyze the clinical status of tumor necrosis factor-α (TNF-α) antagonists.Methods: The clinical trials of TNF-α antagonists registered before August 2,2016 were searched on the National Institutes of Health (NIH) Clinical Trials Register,and SPSS17.0 software was used for statistical analysis of the data.Results: A total of 306 TNF clinical trials were conducted in the world,19 of them were in China.The main research diseases for bone and joint disease,autoimmune diseases,infections,blood tumors.There were 241 items in intervention study,and 56,7,55,60 items in 178 cases,accounting for 73.9% in Ⅱ,Ⅱ/Ⅲ,Ⅲ,Ⅳ,respectively.The interventional study of TNF-α antagonist clinical trials mainly focused on intervention research,The main purpose of the practical application of the process after the listing of further validation and evaluation of drug efficacy and safety.Conclusion: There are many kinds of TNF-α antagonists,and clinical indications are wide.The design of clinical trials is diversified and mature.
3.Determination of Chlorogenic Acid in Shuanghuanglian Keli by HPLC
Hongtao ZHANG ; Junan CAI ; Xinhui GUO
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(04):-
Objective To establish the method for detemining the content of chlorogenic acid in Shuanghuanglian Keli by HPLC.Methods Using Diamonsil ODS1 C18 column,with methanol-water-glacial acetic acid(15:85:1) as the mobile phase,detection wavelength as 324 nm and flow rate was 1.0 mL/min.Results The calibration curve was linear at the range of 0.060~1.210 ?g for chlorogenic acid and the equation was Y=105 427X+586.43,r2=0.999 5.The average recovery was 99.3% and RSD was 0.82%(n=6).Conclusion This method was simple,accurate and proper,and the reduplication of the result was good,which provide scientific quantitative analysis method of chlorogenic acid in Shuanghuanglian Keli.
5.Significance of detection of serum oxidant function in patients with silicosis.
Guo-Cai LÜ ; Jin-Mei YAO ; Juan-Wen ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2010;28(1):52-53
Aged
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Case-Control Studies
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Humans
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Male
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Malondialdehyde
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metabolism
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Middle Aged
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Oxidation-Reduction
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Serum
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metabolism
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Silicosis
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blood
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Superoxide Dismutase
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metabolism
6.Correlation of HPV types with Th17 and Treg cells in cervical cancer
Donghui CAI ; Yan LI ; Runmei GUO ; Tingting ZHANG ; Zhifang CHEN
Chinese Journal of Clinical Oncology 2016;43(24):1099-1102
Objective:Based on the detection of CD4+IL17+Th17 and CD4+CD25+Foxp3+Treg cells in the peripheral blood of patients with human papilloma virus (HPV), the study analyzes the ratio of Th17 to Treg and compares the different expression of cytokine IL-17, IL-10, TGF-β, and IL-23 in the serum. Methods:From September 2014 to June 2016, 119 cases of untreated patients with cervical HPV in-fection were collected at the First Affiliated Hospital of Xinjiang Medical University, which include 46 cases of cervical cancer (CC), 43 cases with cervical intraepithelial neoplasia (CIN)Ⅱ-Ⅲ, and 30 with chronic cervicitis (CCS). The detection of HPV types classified 80 patients as high-risk and 39 as low-risk. Flow cytometry examined Treg and Th17 cells, and enzyme-linked immune sorbent assay was used to test related cytokines. Results:In the infection of high-risk cervical HPV, the rate of the CC group was 87%(40/46), which was higher than that of the CINⅡ-Ⅲgroup and the CCS group, which were 77%(33/43) and 23%(7/30), respectively. For the expression of Th17 and Treg cells in the peripheral blood and the related cytokine IL-17, IL-23, TGF-β, and IL-10 in the serum, the levels of CC group were also significantly higher than that of the other two groups, and the ratio of Th17 to Treg increased considerably with the se-verity of cervical lesions. The expression of Th17 and Treg cells in the peripheral blood of patients with high-risk cervical HPV were higher than that of patients with low-risk cervical HPV (P<0.05), which was the same for the expression of the related cytokine IL-17, IL-23, TGF-β, and IL-10 in the serum. The ratio of the Th17 to Treg of patients with high-risk cervical HPV increased remarkably (P<0.05). Conclusion:The expression of Treg and Th17 cells in high-risk patients exhibits an increasing trend, and the ratio of increased Th17 to Treg may directly participate in the process of HPV infection and immune evasion, which plays an important role in the occurrence and development of cervical cancer.
7.Analysis of the effects of miRNAs on the expression of cytokines by THP-1 cells using Luminex xMAP technology
Lian GUI ; Qianqian ZHANG ; Yan CAI ; Qi GUO ; Junqi HUANG
Chinese Journal of Microbiology and Immunology 2015;(11):799-805
Objective To investigate the effects of a miRNA family member, let-7e, and a combi-nation of miR-106b and miR-20a on the expression of cytokines by THP-1 cells with Luminex xMAP technol-ogy.Methods The efficiency of transfection was evaluated by immunofluorescence assay after transfecting THP-1 cells with micrONTM mimic negative control (Cy3) for 24 h, 36 h and 48 h.The three miRNA mim-ics (let-7e, miR-106b and miR-20a) were respectively used to transfect the THP-1 cells for 24 h, 36 h and 48 h and the expression of each miRNA was analyzed by qRT-PCR analysis for screening out the optimal transfection time.The transfected THP-1 cells were stimulated with1 mg/L of LPS for 1 h.The Luminex xMAP technology was used to detect the expression of IL-8, interferon-inducible protein-10 (IP-10), mono-cyte chemotactic protein 1 (MCP-1), IL-1α, IL-6, IL-10, TNF-α, IFN-αand IFN-βin the supernatants of cell culture.A statistical analysis was performed to analyze the data obtained by using SPSS16.0 software. Results More than 90% of the transfected THP-1 cells were labeled with red fluorescence.The optimal transfection times for let-7e mimic and miR-106b/miR-20a mimics were 48 h and 24 h, respectively.Com-pared with the corresponding negative control (NC), the expression of IL-8, IP-10 and MCP-1 by THP-1 cells were enhanced after the transfection with let-7e mimic, but were inhibited after the co-transfection with miR-106b and miR-20a mimics.Conclusion The expression of IL-8, IP-10 and MCP-1 were enhanced in let-7e transfected THP-1 cells, but were inhibited in miR-106b and miR-20a co-transfected THP-1 cells.
8.Application of failure mode and effect analysis in nursing care of children with tracheal foreign body removal
Xiaoying ZHANG ; Yunxia CAI ; Meiying XIE ; Meiyun GUO
Chinese Journal of Practical Nursing 2015;(32):2457-2460
Objective To identify the potential risks in the process of nursing care for children with tracheal foreign body removal and improve the skills and the process, to promote the quality of nursing care and the success rate of tracheal foreign body removal. Methods The failure mode and effect analysis (FMEA) were used to analyze the potential risks in children with tracheal foreign body removal, preoperative, intraoperative and postoperative care, and to find out the possible risks in each medical treatment. For pediatric venous puncture technology was not skilled, surgical position placement inappropriate (especially in the case of foreign body removal surgery posture), surgical instruments and equipment management, intraoperative nursing cooperation and observation of the disease, postoperative transfer and other aspects of the transfer of training and improvement. Results The medical risk value (RPN) in the treatment of pediatric tracheal foreign body removal in the process of nursing in the control group was reduced from 1 284.2 to 213.2 of the experimental group. The average value of doctors' satisfaction was increased from 79.33% in the control group to 93.33%in the experimental group, P<0.05, the difference was statistically significant. Conclusions The use of FMEA in the treatment of pediatric tracheal foreign body removal surgery care and medical risk management improve the quality of surgical care and help improve the success rate of tracheal foreign body removal. It also ensures the safety of the children in the operation process and improves the quality of nursing work.
9.The role of gap junction inhibitors in the epileptic animal model induced by injection of kainic acid
Zhengxu CAI ; Shuqin ZHANG ; Qun LIU ; Huishu GUO
Chinese Journal of Neurology 2005;0(10):-
0.05). Conclusions The gap junction formed by CX43 should be an important role in switching and developing the epilepsy. The synthetic polypeptide corresponding to amino acid sequence of CX43 would be a kind of new type antiepileptic drug, which might have less side effects and more potent pertinency.
10.Expressions of myocardial ?-MHC and ?-MHC mRNA in rats with pressure overload
Hui CAI ; Junhao GUO ; Wei SHANG ; Qunyan ZHANG
Journal of Medical Postgraduates 2003;0(10):-
Objective: Recent years has witnessed new progress in the molecular genetic study of the relationship between the myosin heavy chain and myocardial hypertrophy.This study aimed to observe the expressions of myocardial ?-myosin heavy chain(?-MHC) and ?-myosin heavy chain(?-MHC) mRNA in rats with pressure overload,and to investigate the mechanism by which abdominal aorta constriction induces left ventricular hypertrophy.Methods: Male SD rats were randomly divided into a sham operation and model group.The models were made by clamping the suprarenal abdominal aorta with a silver chip.Eight weeks later,changes in the left ventricular mass index(LVMI) and the ultra microstructure of the left ventricular myocyte were observed,and the expressions of ?-MHC and ?-MHC in the myocardial tissue were detected by RT-PCR.Results: Compared with the sham operation group,the model rats showed markedly increased LVMI(P