1.Endothelial monocyte-activating polypeptide- Ⅱ and tumor
Journal of International Oncology 2011;38(11):819-822
Endothelial monocyte-activating polypeptide-Ⅱ (EMAP-Ⅱ ) is a novel proinflammatory cytokine with proinflammatory,proapoptotic and antiangiogenic properties.It is associated with many tumorassociated proteins,such as tumor necrosis factor,vascular endothelial growth factor,hypoxia inducible factor-1α,arginyl-tRNA synthetase,and insulin-like growth factor- Ⅰ.EMAP-Ⅱ has anti-tumor properties and has a good prospect in cancer prevention and treatment.
2.Study on immune function of blood dendritic cells in patients with lupus nephritis
Demin TAN ; Yang XIANG ; Qianlin TAN
Chinese Journal of Immunology 2016;32(4):570-572
Objective:To investigate the different function of dendritic cells between patients with lupus nephritis and healthy control,and discuss the pathogenesis of the disease.Methods: Choose 50 healthy controls,50 patients with lupus nephritis,and isolation of blood dendritic cells.Then samples were induced with GM-CSF and IL-4,and cells were collected on day 7.DC maturity was evaluated using the following methods:fluorescence-activated cell sorting analysis for cell surface markers;enzyme-linked immunosorbent assay for cytokine production;cell proliferation assay for induction of T cell proliferation.Results: Compared with the control group,lupus nephritis group had increased MHC Ⅱ,CD86,CD80,and CD40 expression(P<0.05);displayed the increased IL-12 and TNF-αlevels(P<0.05);displayed a increased ability to drive lymphocyte cells proliferation (P<0.05).Conclusion:Compared with the control group ,dendritic cells in lupus nephritis group displayed the mature condition ,which indicates that dendritic cells play the important role in the pathogenesis of lupus nephritis.
3.Construction of eukaryotic expression plasmid pcDNA3.1(-)/PSMA7 and its expression in A549 cell line
Jiayu TAN ; Yaling LUO ; Xiang HUANG
Medical Journal of Chinese People's Liberation Army 2001;0(11):-
0.05). The data proved that PSMA7 was overexpressed in pcDNA3.1(-)/PSMA7-transfected A549 cell line, both in mRNA level and in protein level. Conclusion Eukaryotic expression plasmid pcDNA3.1(-)/PSMA7 has been successfully constructed, and the PSMA7 is stably expressed in A549 cell line. This would pave the way for further study of PSMA7.
4.Study on serum autoantibody in patients with polycystic ovary syndrome in child-bearing period
Yueyun XIANG ; Anhua MAO ; Hao TAN
International Journal of Laboratory Medicine 2014;(20):2773-2774
Objective To investigate the association between serum non-organ-specific autoantibodies and polycystic ovary syn-drome(PCOS).Methods A total of 69 patients with PCOS in child-bearing period treated in our hospital were selected as the study group and contemporaneous 69 healthy child-bearing year women were selected as the control group.Serum level of antinuclear anti-bodies (ANA)was measured by ELISA,serum level of anti-dsDNA was measured by colloidal gold spot infiltration assay and the extractable nuclear antigen (ENA)auto-antibodies profiles were measured by Western blot.Results Serum levels of ANA and an-ti-dsDNA antibodies in the study group were significantly elevated compared with the control group with statistical difference.Con-clusion Serum autoantibody positive exists in the patients with PCOS.
5.Effect of periodontal mechanical therapy on periodontal health and interleukin-6 levels in gingival crevicular fluid in type 2 diabetic patients with chronic periodontitis
Jiawei TAN ; Lixin XIANG ; Li LIU
Chinese Journal of Geriatrics 2011;30(6):503-505
Objective To evaluate the effectiveness of periodontal mechanical therapy on periodontal health and interleukin-6 (IL-6) levels in gingival crevicular fluid (GCF) in type 2 diabetic patients with chronic periodontitis. Methods GCF samples were obtained with filter papers in first molar sites from 37 type 2 diabetic patients with chronic periodontitis. The randomized controlled and blinded clinical trial with a duration of six months was designed to compare effects between three groups of professional mechanical tooth cleaning (PMTC), i.e. coronal scaling (group Ⅱ) with periodontal initial therapy (group Ⅰ) and without clinical therapy (control group). The clinical periodontal index such as probing depth (PD), attachment loss (AL), modified bleeding index (mBI) and bacteria plaque index (PLI) were obtained with a Williams type periodontal probe. Laboratory examination including GCF volume, concentrations and total amounts of IL-6 in GCF were detected with ELISA method. Results Significantly decreasing trends of PD, AL, mBI, GCF volume and total amounts of IL-6 were observed in group Ⅰin all test period. The group Ⅱ had a significant reduction of PD at the third month as compared with baseline (⊿=0.36 mm, P<0.05), and the other figures showed descending trends but didn′t present statistical significances. At the end of study, the group Ⅰand Ⅱ had significant reductions of GCF volume compared with increases of control group (0.96 μ1>0.03 μ1mm>-0.20 μ1, P<0.05). Conclusions The sequential periodontal supra- and sub- gingival scaling has definitive effects on periodontal health improvement and on reducing the IL-6 level in GCF in type 2 diabetic patients.
6.Research advances in molecular epidemiology and vaccines of Coxsackievirus A16.
Xiang-Peng CHEN ; Xiao-Juan TAN ; Wen-Bo XU
Chinese Journal of Virology 2014;30(4):483-488
Epidemics of hand, foot and mouth disease (HFMD) have mainly been caused by Coxsackievirus A16 (CVA16) and Enterovirus A 71 (EV-A71), which circulated alternatively or together in the affected area. CVA16 has caused numerous outbreaks and epidemics in multiple countries and geographical regions, and has become an important public health problem. Based on an analysis of the complete VP1 coding region, all CVA16 strains can be divided into genotypes A, B1, and B2. Furthermore, genotype B1 can be divided into subgenotypes B1a, B1b, and B1c. After 2000, no reports of genotype B2 virus strains have been reported. All of the CVA16 strains reported in mainland China have belonged to subgenotypes B1a and B1b. Most CVA16-associated infections cause only mild symptoms; however, some CVA16 infections can lead to severe complications and even death. Vaccination is considered to be the most effective method to control the transmission and infection rate of this virus. A number of research groups are studying various vaccine types, including inactivated vaccines, genetic engineering vaccines, and DNA vaccines, amongst others. In this review, an overview is provided of the research advances in molecular epidemiology and vaccines of CVA16.
Animals
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China
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Coxsackievirus Infections
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epidemiology
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immunology
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prevention & control
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virology
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Enterovirus A, Human
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classification
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genetics
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isolation & purification
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Humans
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Molecular Epidemiology
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Viral Vaccines
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administration & dosage
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genetics
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immunology
7.Identification of a new shrimp allergen enolase from Litopenaeus vannamei
Siyi TAN ; Jianfang HUANG ; Yifan SUN ; Chengbin GUO ; Junjian XIANG
Chinese Journal of Immunology 2016;32(6):808-811
Objective:To identify enolase,47 kD allergen,from Litopenaeus vannamei by Mass spectrometry. Methods: The proteins were extracted from Litopenaeus vannamei tissue with acetone precipitation method. The protein components were analyzed by SDS-PAGE and Western blot. By using Matrix-Assisted Laser Desorption/Ionization time of flight mass spectrometry ( MALDI-TOF/TOF-MS) ,the 47 kD allergen from Litopenaeus vannamei was identified as enolase. Results:By SDS-PAGE,we proved that the native protein components from Litopenaeus vannamei were completely. According to the Western blot result more than 14 components could react with the positive serum. MALDI-TOF/TOF analysis results showed that the suspected proteins were enolase. A sensitization frequency was 55%. Conclusion:Enolase was identified as a new allergen of Litopenaeus vannamei.
8.Gastric motility:physiology and changes associated with aging
Jing SHI ; Li MENG ; Xiao TAN ; Xiang LIU ; Pulin YU
Chinese Journal of Geriatrics 2017;36(1):23-26
9.Analysis of a survey result of Keshan disease in Zhangjiakou City of Hebei Province in 2010
Pei-lun, HUA ; Zhong-xiang, WANG ; Jie, TAN
Chinese Journal of Endemiology 2013;32(4):436-438
Objective To study Keshan disease and its developmental trend in Zhangjiakou City in 2010 and to provide a scientific basis for further prevention of the disease.Methods From the eight diseased counties of Zhangjiakou City,five diseased countries were selected; in each diseased county a diseased village was selected as the clinical investigating point.Physical examination and Electrocardiography (ECG) tracings were carried out to suspicious patients with Keshan disease.Suspected heart enlargement,and ECG abnormalities were taken anteroposterior chest X-ray to measure the cardiothoracic ratio.Results A total of 2519 people were examined,16 cases were diagnosed as chronic Keshan disease,79 as latent Keshan disease,and the detection rate was 0.64% (16/2519) and 3.14%(79/2519),respectively.Total of 2519 ECG tracings were taken,and electrocardiogram abnormalities were 268 cases,with a abnormal rate 10.64%,and most of them were complete right bundle branch block[accounted for 17.16% (46/268)].Totally 94 cases of anteroposterior chest X-ray films were taken and 42 cases were cardiac enlargement,with a detection rate 44.68%.The numbers of mild,moderate and severe cases were 20,12 and 10,respectively,and the constituent ratio was 47.62% (20/42),28.57% (12/42),23.81% (10/42),respectively.Conclusions The incidence of Keshan disease in Zhangjiakou City is relatively low,and the condition is stable.But monitoring and comprehensive prevention and control measure still should be strengthened.
10.A study on the relationship between pancreatic stone protein and ventilator associated pneumonia
Tianshu LIANG ; Bo YANG ; Jiayu TAN ; Xiang HUANG
International Journal of Laboratory Medicine 2017;38(12):1589-1590,1593
Objective To investigate the diagnosis and disease assessment of serum pancreatic stone protein(PSP/reg) in ventilator-associated pneumonia(VAP) by a prospective study.Methods The blood sample was collected in patients with mechanical ventilation(MV) from September 2012 to October 2015.Then the concentration of PSP/reg was detected by ELISA method and the time of MV and the outcome of VAP were recorded,while the patients who did not have VAP occurred in the same period regarded as control group.Results Compared with the control group,there was no significant difference in the serum concentration of PSP/reg in VAP group(P>0.05).From continuous monitoring,compared with the start time of MV,there was a significant increase in the concentration of PSP/reg in VAP group(P<0.05),and reached the highest peak in the fourth day.That of the seventh day was significantly decreased,but still higher than the first day(P<0.05).It decreased further in the fourteenth day,but compared to the start time of MV was still higher(P<0.05).In this study,38 cases were successfully evacuated in VAP group.Compared with the fourth day,the concentration of PSP/reg in the 38 cases in the stop of MV had significantly decreased(P<0.05),close to that of in the start of MV,but still a difference between them(P<0.05),and higher than that of the control group in the stop of MV(P<0.05).By Spearman analysis,we found that PSP/reg concentration in the first day had a significant correlation with CRP(r=0.570,P<0.05),but WBC and PCT were not(P>0.05).Conclusion PSP/reg can be used as one of the indicators for diagnosis of VAP,and may be related to the severity of VAP.