The bilingual teaching must face some innovations and reformations in the contents and methods to acquire some satisfactory outcome.The article discusses some questions of bilingual teaching in paediatrics including the shortage of teachers,the interest deficiency of students,the lack of suitable teaching materials and inferior learning environment,and then provides some useful advice for the innovations of bilingual teaching.

To improve the efficiency of medical research resource distribution in Beijing,based on the analysis of the existing problems we discussed the new model of resource integration.The model includes establishing all information-sharing platform and two operation modes of research project.By using this model it would be assured to achieve the best allocation efficiency and maximizing profits for Beijing medical research resources.

OBJECTIVETo observe the effect of oxymatrine on the level of serum matrix metalloproteinase-2 (MMP-2) and its inhibitor (TIMP-2) in patients with chronic hepatitis B (CHB) and post-hepatitis B liver cirrhosis (LC), as well as on liver fibrosis indexes as hyaluronic acid (HA), laminin (LN) and IV type collagen (IV C).

METHODSChanges of all the above-mentioned indexes in patients with CHB (n = 36) and LC (n = 36) before and after treatment were determined, and the relationship of MMP-2 and TIMP-2 with liver fibrosis indexes were analyzed.

RESULTSOxymatrine could decrease the levels of MMP-2, HA, LN and IV C in patients with severe or moderate CHB and LC of Child-pugh A, B and C grade, as compared with the data before treatment (P < 0.05). Serum level of MMP-2 and TIMP-2 was well correlated with the levels of liver cirrhosis indexes.

CONCLUSIONMMP-2 and TIMP-2 can be used as a reference for evaluating the degree of LC, and oxymatrine has a certain anti-LC effect.

Adolescent ; Adult ; Aged ; Alkaloids ; therapeutic use ; Collagen Type IV ; blood ; Female ; Hepatitis B, Chronic ; complications ; drug therapy ; enzymology ; Humans ; Hyaluronic Acid ; blood ; Laminin ; blood ; Liver Cirrhosis ; complications ; drug therapy ; enzymology ; Male ; Matrix Metalloproteinase 2 ; blood ; Middle Aged ; Quinolizines ; therapeutic use ; Sophora ; Tissue Inhibitor of Metalloproteinase-2 ; blood

Objective To find the different plasma-associated proteins of rheumatoid arthritis (RA) by using two-dimensional gel electrophoresis for understanding the pathogenesis of RA. Methods The total protein from either RA patients or normal ones was prepared by means of immobilized pH gradient based on two-dimensional gel electrophoresis. After silver staining, gel-image analysis was performed by using PDQuest. The differentially expressed proteins were identified by matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF-MS). Results 2-DE patterns of plasma from controls and RA patients were presented. The results showed that average number of protein spots was 592 and 563 respectively, and the corresponding average matching rate was 89% and 87% respectively. Gel-image analysis revealed that there were 24 differential protein spots. A total of 15 differential protein spots were successfully identified by MALDI-TOF-MS, of which 6 proteins were up-regulated as compared with control. Conclusion The differentially expressed proteins can be observed in plasma from RA and controls, which can be used to elucidate the pathogenesis of RA for further study.

Objective To investigate the clinical and pathologic features of small gastrointestinal stromal tumors (small GISTs,d ＜ 2.0 cm).Methods Medical records of 95 patients undergoing surgery (endoscopic surgery,thoracoscopic/laparoscropic surgery and open surgery)and diagnosed as having GISTs by pathology and immunohistochemistry in Nanfang hospital from October 2003 to June 2014 were retrospectively analyzed.Based on clinical and pathological results,correlation analyses between risk factors for endoscopic ultrasonography(EUS) and Mitotic count(MI),clinicopathologic parameter and NIH risk classification were performed.Results Among 95 cases (104 lesions),88 were single,while 7 were multiple;81.7％ (85/104) small GISTs arose from stomach,including 87.1％ (74/85)in middle-upper stomach;5 cases (5.3％) presented calcification of different degrees,3 cases(3.2％) presented local necrosis and 2 cases (2.1％) with arrangement of epithelioid cells;88 cases (92.6％) were very low grade of NIH risk classification,6 cases (6.3％) were intermediate risk and 1 case(1.1％) was high risk.Positive rates of CD34 and CD117 were 95.8％ (91/95) and 96.8％ (92/95) respectively.The risk factors (border,mucosal surface,echo and heterogeneity) of EUS had no correlation with mitotic count(P＞0.05).The correlation analysis between clinicopathologic features and NIH risk classification revealed tumors more than 1.5 cm had a striking correlation with NIH risk classification (P＜ 0.05).Conclusion Most small GISTs,single or multiple,located at middle-upper stomach,were of very low or low risk,and have a favorable prognosis.But it has worse biological behavior and a higher grade risk when the diameter is more than 1.5 cm,intervention should be recommended.

In order to provide a scientific basis for the establishment of a Daphnes Cortex medicinal material fungus library and the screening of endophytic fungi that promote the growth of Daphnes Cortex and increase the content of daphnetin, we used Illumina high-throughput testing technology to analyze 9 Daphnes Cortex samples from Gansu and Shanxi provinces. A total of 632 766 valid sequences were obtained, including 348 OTUs, 4 phyla, 20 classes, 48 orders, 108 families, 154 genera, and 208 species. The sum of the first 3 fungal genera account for more than 65% of the total abundance, with the highest reaching 98.4%. Alternaria and Phoma are the main genuses of Daphne giraldii Nitsche, and Altemaria is the dominant genus. The endophytic fungi community of Daphnes Cortex is rich in diversity, and the order of fungal diversity in different producing areas is: Gangu County > Wutai County > Tanchang County.

Animals ; Cyclooxygenase 2 ; metabolism ; Lipopolysaccharides ; Liver Failure ; metabolism ; Male ; Mice ; Mice, Inbred BALB C

AIMTo study the effects of indomethacin on interleukin-6 (IL-6) expression stimulated with lipopolysaccharide (LPS) in rheumatoid arthritic patients' synoviocyte.

METHODSFibroblast-like cells (FLS) from rheumatoid arthritic patients' joint tissue were cultured for 24 h and incubated 24 h with LPS (1 mg.L-1) or the supernatant of U937 cells stimulated by LPS (1 mg.L-1). After indomethacin or dexamethasone added into the supernatant of U937 cells, FLS was incubated with the super natant for 24 h. The expression of IL-6 protein was detected by radioimmunoassay. The mRNA expression of IL-6 was accessed by RT-PCR.

RESULTSLPS did not obviously affect the growth of FLS, and the protein secretion and mRNA expression of IL-6 were not changed in FLS treated with LPS. The IL-6 secretion and IL-6 mRNA expression were significantly increased in FLS cultured with the supernatant from U937 cell treated with LPS. Indomethacin at concentrations of 1 x 10(-7)-1 x 10(-5) mol.L-1 obviously inhibited the protein secretion and mRNA expression of IL-6 in FLS cultured with the supernatant from U937 cell stimulated with LPS, and the inhibitory effects increased as the concentrations of indomethacin increased.

CONCLUSIONIndomethacin can inhibit the increase of IL-6 expression caused by supernatant of U937 cells stimulated with LPS in FLS.

Anti-Inflammatory Agents, Non-Steroidal ; pharmacology ; Arthritis, Rheumatoid ; metabolism ; pathology ; Cells, Cultured ; Fibroblasts ; metabolism ; pathology ; Humans ; Indomethacin ; pharmacology ; Interleukin-6 ; biosynthesis ; genetics ; Lipopolysaccharides ; pharmacology ; RNA, Messenger ; genetics ; Synovial Membrane ; metabolism ; pathology ; U937 Cells

AIMTo study the effects of lipopolysaccharide (LPS), the supernatant of U937 cells stimulated with LPS and dexamethasone on interleukin-6 (IL-6) expression in the synoviocyte from patients with rheumatoid arthritis (RA).

METHODSFibroblast-like synoviocytes (FLS) from the joint tissue of patients with rheumatoid arthritis were cultured and incubated for 24 h with LPS (1 mg.L-1) or the supernatant of U937 cells stimulated with LPS (1 mg.L-1) for 24 h. Dexamethasone was added to the supernatant of U937 cells and FLS was incubated for 24 h. The expression of IL-6 protein was detected by radioimmunoassay. The mRNA expression of IL-6 was accessed by RT-PCR.

RESULTSThe growth of FLS was not markedly affected by LPS, and the protein secretion and mRNA expression of IL-6 were not markedly changed in FLS treated with LPS. The IL-6 secretion and IL-6 mRNA expression were significantly increased in FLS cultured with the supernatant from U937 cell treated with LPS. Dexamethasone markedly inhibited the protein secretion and mRNA expression of IL-6 in FLS cultured with the supernatant from U937 cell stimulated with LPS. The inhibitory effects were increased as the concentration of dexamethasone increased.

CONCLUSIONLPS was not shown to directly affect the expression of IL-6 in FLS, but it indirectly causes the increase of the IL-6 expression in FLS by stimulating U937 cell. Dexamethasone can inhibit this increase of the IL-6 expression.

Arthritis, Rheumatoid ; pathology ; Cell Division ; drug effects ; Cells, Cultured ; Dexamethasone ; pharmacology ; Fibroblasts ; drug effects ; metabolism ; Gene Expression ; drug effects ; Humans ; Interleukin-6 ; biosynthesis ; genetics ; Lipopolysaccharides ; pharmacology ; RNA, Messenger ; genetics ; Synovial Membrane ; drug effects ; metabolism ; U937 Cells

AIMTo study the effects of lipopolysaccharide (LPS), the supernatant of U937 cells stimulated with LPS and dexamethasone on matrix metalloproteinase-9 (MMP-9) expression in the synoviocyte from patients with rheumatoid arthritis(RA).

METHODSFibroblast-like cells (FLS) from the joint tissue of patients with rheumatoid arthritis were cultured and incubated for 24 h with LPS (1 mg.L-1) or the supernatant of U937 cells stimulated with LPS (1 mg.L-1) for 24 h. Dexamethasone was added to the supernatant of U937 cells and FLS was incubated for 24 h. The activity of MMP-9 was analyzed by gelatin zymography. Protein expression of MMP-9 was detected by Western blot using special polyclonal antibodies. The mRNA expression of MMP-9 was detected by RT-PCR.

RESULTSThe expression of MMP-9 was not markedly changed in FLS treated with LPS. The MMP-9 activity, MMP-9 secretion and MMP-9 mRNA expression were significantly increased in FLS cultured with the supernatant from U937 cell treated with LPS. Dexamethasone markedly inhibited the activity, protein secretion and mRNA expression of MMP-9 in FLS cultured with the supernatant from U937 cell stimulated with LPS, and the inhibitory effects were increased as the concentration of dexamethasone increased.

CONCLUSIONLPS did not directly affect the expression of MMP-9 in FLS, but it was found to indirectly cause the increase of MMP-9 expression in FLS by stimulating U937 cell. Dexamethasone was found to inhibit this increase of MMP-9 expression.

Anti-Inflammatory Agents ; pharmacology ; Arthritis, Rheumatoid ; pathology ; Cell Division ; drug effects ; Cells, Cultured ; Dexamethasone ; pharmacology ; Fibroblasts ; pathology ; Gene Expression ; drug effects ; Humans ; Lipopolysaccharides ; pharmacology ; Matrix Metalloproteinase 9 ; biosynthesis ; genetics ; metabolism ; RNA, Messenger ; drug effects ; genetics ; Synovial Membrane ; drug effects ; enzymology ; pathology ; U937 Cells