1.Measurement of Expression Level of a Proliferation-Inducing Ligand and Its Receptors in Children with Non-Hodgkin′s Lymphoma
jian-hui, GU ; dong-lei, ZHANG ; mei-yu, XU
Journal of Applied Clinical Pediatrics 2006;0(23):-
Objective To establish real-time fluorescence quantitative polymerase chain reaction(RFQ-PCR) for measurement of the expression level of a proliferation-inducing ligand(APRIL)and its receptors in children with non-Hodgkin′s lymphoma(NHL).Met-hods Specific primers and TaqMan probes of APRIL and its receptors had been designed,and fluorescence of the PCR products were detected continuously during amplification.According to the standard curves created by plasmid DNA,the expression level of target genes in clinical samples had been determined using software,and these results were presented as the ratios of target genes′ mRNA to ?2 microg-luobulin(?2M)′s mRNA.Results The detection range of RFQ-PCR was between 101-109 ng/L,the coefficient of variation values for both intra-experimental and inter-experimental reproducibility ranged from 1.68% to 5.97% and 6.40% to 10.58%,respectively.The results from 22 samples showed that the expression level of APRIL,B cell maturation antigen(BCMA) and transmembrane activator and calcium modulator and cyclophilin ligand(TACI) in peripheral blood of NHL were significantly higher than those in normal children(P
2.An analysis of hospitalization rates of patients with goiter in Lianyungang City Jiangsu Province in 2002-2010
Jian-mei, DONG ; Wei-wei, LI ; Xu-cheng, QIN
Chinese Journal of Endemiology 2013;32(4):419-423
Objective To observe the changes of hospitalization rates of patients with goiter in Lianyungang City in a coastal area with mild iodine deficiency in 2002-2010.Methods Medical reports of patients with goiter from county hospitals were studied at county level with a retrospective method.In accordance with the National Iodized Salt Monitoring Program,nine townships(towns) were taken from each county (district) [total of five counties(districts)]; four villages were selected from each township (town); salt samples were taken from eight households in each village,and salt iodine was determined using direct titration of sodium thiosulfate.Results The hospitalization rate of patient with goiter increased from 1.87/10 million in 2002 to 7.05/10 million in 2009,and then fluctuated to 6.06/10 million in 2010(x2 =281.91,P< 0.01).Among them,female's hospitalization rates were significantly higher than that of male 's(The variation range of x2 values were 35.23-116.04,all P < 0.01),and the hospitalization rates of people over the age of 40 years were significantly higher than that of people less than 40 years of age(The variation range of x2 values were 33.04-263.04,all P < 0.01),and the hospitalization rates of people in urban areas were significantly higher than that of people in rural areas (The variation range of x2 values were 18.35-140.00,all P < 0.01).Average salt iodine was 27.61-30.13 mg/kg in 2002-2010.The coverage rate of iodized salt and the consumption rate of qualified iodized salt both increased year by year (x2 =183.75,211.99,P < 0.01).There was a positive correlation between hospitalization rate of patient with goiter and coverage rate of iodized salt(spearman correlation coefficient was 0.83,P < 0.05).There was a positive correlation between hospitalization rate of patient with goiter and the consumption rate of qualified iodized salt too (spearman correlation coefficient was 0.93,P < 0.05).Conclusions In Lianyungang City,the hospitalization rate of patient with goiter,the coverage rate of iodized salt and the consumption rate of qualified iodized salt all show upward trend in 2002-2010.The relationship among them is worth further study.
3.Development and Application of New Substrate-stretching Device for Cultured Cells
Dong XU ; Qiping HUANG ; Chong MEI ; Xiao CHEN ; Junpei XIA
Chinese Medical Equipment Journal 1989;0(04):-
Objective To simulate the mechanical environment of cells in vivo and study cellular signal transduction mechanisms. Methods A device was developed which could provide high cell yield, control the time, strain magnitude, direction and frequency of stretch, and applied 10% cyclic strain to cell culture substrate with stretch frequency at 1Hz. Results After being stretched, morphology and cytoskeleton of cells were altered. The major axis of cells and the alignment of stress fibers were vertical to the orientation of cyclic stretch. Conclusion This device provides versatile options for the study on the cellular responses of mechanical loading.
4.Caveolin-1 expression is downregulated by shear stress and TNF-? in human aortic endothelial cells
Qing XIANG ; Xi DONG ; Mei XU ; Ruijuan SUN
Chinese Journal of Pathophysiology 1989;0(05):-
AIM: To observe effects of shear stress and TNF-? on caveolin-1 expression. METHODS: Cultured human aortic endothelial cells (HAECs) of passage 3-5 were used in the experiment. Cells were exposed to a laminar flow (shear stress 1.0 Pa) by using a parallel rectangular flow chamber for different time. Caveolin-1 mRNA and protein expression were measured by RT-PCR and Western blot, respectively. Caveolin-1 expression of the cells stimulated by TNF-? were also studied to elucidate the influence of this inflammatory factor. RESULTS: After 24 h of exposure to 1.0 Pa shear stress, both of caveolin-1 protein and mRNA expression decreased in HAECs, especially caveolin-1 mRNA expression (P
5.The analysis of drug resistance and rational use of antimicrobial agents in 106 cases of acute appendicitis
Qiyong DONG ; Zhongliang XU ; Sha LIU ; Mei JIN
Chongqing Medicine 2015;(22):3058-3059,3062
Objective To study the drug resistance of infection bacteria deriving from acute appendicitis patients.Methods The separation and the drug sensitive characteristic of bacteria deriving from the specimen of acute appendicitis patients were ana-lyzed,who were admitted in the general department of our hospital from January to June 2013.Results One hundred and six bacte-ria strains were isolated.Among them,100 (94.34%)strains were Gram negative bacteria strains,including escherichia coli,kleb-siella pneumonia bacillus and verdigris fake single spore bacterium,in a proportion of 67.92%,1 1.32% and 5.66% respectively. The resistance of piperacillin,ciprofloxacin,gentamycin,levofloxacin,tobramycin and cefepime was high in Gram negative bacteria, while the lower resistance to piperacillin/ tazobactam,cefoxitin and imipenem.Conclusion The resistant rate of acute appendicitis infection bacteria is high.
6.The relationship between expression of cyclooxygenase-2,vascularendotheliai growth factor and angiogenesis in hepatoceUular carcinoma
Dong-Mei ZOU ; Qing-Xu YANG ; Tong-Tong WU ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(08):-
Objective To investigate the significance of cyclooxygenase-2 (COX-2),vascular endothelial growth factor(VEGF) protein expression and angiogenesis in hepatocellular carcinoma(HCC).Methods Tissue sec- tions from 40 HCC patients were examined immunohistochemically for protein expression of COX-2 and VEGF.Mi- crovessel density(MVD) was counted by endothelial cells immunostained by anti-CD34 antibody.Results The ex- pression of COX-2 protein in well differentiated HCC was stronger than that in moderately differentiated HCC and poorly differentiated HCC(P
7.Clinical value of tunnel endoscopy for the treatment of esophagogastric diseases.
Chinese Journal of Gastrointestinal Surgery 2012;15(7):659-661
Tunnel endoscopy is a new therapeutic technique developed from natural orifice endoscopic transluminal surgery and endoscopic submucosal dissection. With the quick development in the passing 5 years, tunnel endoscopy has been applied in the treatment of clinical diseases. In this article, our aim was to clarify the indication and method, evaluate the efficacy and safety of tunnel endoscopy for the treatment of esophagogastric diseases, including esophageal achalasia and submucosal tumors originating from the muscularis propria layer.
Endoscopy, Digestive System
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adverse effects
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methods
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Esophageal Diseases
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surgery
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Humans
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Stomach Diseases
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surgery
9. Three kinds of root canal sealers in one-visit root canal therapy: A comparison of clinical outcomes
Academic Journal of Second Military Medical University 2013;34(9):1029-1031
Objective To evaluate the clinical outcomes of three different sealers for one-visit root canal therapy. Methods A total of 362 patients/425 teeth diagnosed as pulpitis were randomly divided into three groups: group A, including 120 patients/121 teeth, treated with zinc oxide engenol(ZOE); group B, including 121 patients/151 teeth, treated with Cortisomol; and group C, including 121 patients/153 teeth, treated with 2Seal easymiX. All the teeth were filled with gutta percha by cold lateral condensation. The post-treatment pain and the one-year successful rate were observed. Results The incidence rate of post-treatment pain in group A (15. 7%[19/121\]) were significantly higher than those in group B (5. 3%[8/151\], P<0. 01) and group C (6. 5%[10/153\], P< 0. 05); and there was no significant difference between group B and C. The one-year successful rates were not significantly different between group A (94. 0%[110/117\]), B (96. 5%[137/142\]) and C (97. 9%[142/145\]). Conclusion The three kinds of root canal sealers can all achieve satisfactory one-year successful rate in one-visit root canal therapy; moreover, Cortisomol and 2Seal easymiX can also reduce post-treatment pain, making them ideal root canal sealers.
10.INTERACTIONS BETWEEN THE HUMAN GASTRIC CARCINOMA CELL AND THE HUMAN VASCULAR ENDOTHELIAL CELL
Juan REN ; Lei DONG ; Cangbao XU ; Xu LI ; Mingzhong LI ; Hui WANG ; Xiaoli WANG ; Mei WANG
Journal of Pharmaceutical Analysis 2001;13(2):123-128
Objective To definite the interactions between the human gastric carcinoma cell and the human vascular endothelial cell during the establishment and maintenance of the tumor vascular system and the tumor hematogenous metastasis.Methods We prepared the conditioned mediums of each cell so as to study the effect of the conditioned medium on itself or others by MTT colorimetry. The comprehensive effect of interactions between two cells was determined by stratified transfilter co-culture or direct contact co-culture.Results The conditioned medium of human gastric carcinoma cell can stimulate the proliferation of the human vascular endothelial cell, but the CM of HVEC can inhibit the growth of HGCC. Both kinds of cells can inhibit the growth of itself. The ultimate comprehensive effect of the interactions between two kinds of cells was increase of total cell numbers.Conclusion There exist the complicated interactions between the human gastric carcinoma cell and the human vascular endothelial cell during the tumor angiogenesis and the tumor hematogenous metastasis. The ultimate comprehensive effect of the interactions is increase of total cells numbers and tumor volume.