Objective To examine serum levels of IgG, IgA, IgM, IgE and C3 and explore sensitivity of glucocorticoid (prednisone) in primary nephropathyic children to study pathogenesis of primary nephropathy and direct clinical therapy. Methods Examine serum IgG, IgA, IgM and C3 by scattering turbidimetry and IgE by ELISA. Results Compared with healthy children, children suffering from primary nephropathy had lower IgG and higher IgM and IgE, but the same IgA and C3 Simple and nephritic nephropathy had very significant difference in sensitivity of glucocorticoid(x2=18.48 P

Objective To evaluate the risk factors for early rebleeding (ERB) after elective endoscopic variceal ligation (EVL) in cirrhotic patients and the influence of ERB on the long-term survival.Methods A total of 198 cirrhotic patients who received elective EVL were retrospectively evaluated.Twenty-six patients rebleeded within 6 weeks after initial EVL and were assigned to the ERB group.One hundred and seventy-two other cirrhotic patients were assigned to the control group.Multivariate analysis was used to define the high risk factors of ERB.A Kaplan-Meier analysis was performed to evaluate the cumulative survival rates between two groups.Results The Child-Pugh classification (P =0.016),Child-Pugh scores (P=0.012),and the total bilirubin (P =0.001) were significantly different between ERB and control group.Multivariate analysis showed total bilirubin was the only independent risk factor of ERB (OR =2.02,95％CI:1.04-4.04,P =0.008).The proportional mortality indicator of bleeding-related deaths was 66.7％ (10/15) in ERB group and 13.6％ (6/44) in control group (P ＜0.01).The five-year curmulative survival rate of the control-group was significantly higher than that of the rebleeding group (67.8％ vs.25.3％,P ＜ 0.01).Conclusion Cirrhotic patients with ERB after elective EVL have a poor prognosis.High level of total bilirubin may predict ERB.

Background and purpose: Primary study showed that clusterin was associated with tumorigenicity. The goal of the study is to investigate the role of secretory clusterin in non-small cell lung cancer cell A549/H460. Methods: The lung cancer cell A549/H460 was treated with purified secretory clusterin, the Boyden Chamber migration assay was used to detected the migration of the lung cancer cell;the CCK8 assay was used to detected the growth of the cells;microRNA expression spectrum in H460 treated with secretory clusterin was analyzed, after that, we used the real-time florescence quantification detected the expression of microRNA in H460, and the biological function of microRNA molecular mechanisms of secretory clusterin was analyzed. Results: Secretory clusterin promoted the migration in A549/H460 (P<0.000 1);Secretory clusterin inhibited the growth in H460/A549 (P<0.000 1);MicroRNA-302b-3p, microRNA-23a-5p and microRNA-101-5p was overexpressed in H460 when treated with secretory clusterin. Conclusion:Secretory clusterin could promote the migration and inhibit the growth of lung cancer cell;It could change the microRNA expression spectrum as well. Our studies revealed that secretory clusterin could be used as a tool for further study, and it is a potential target in the treatment of lung cancer.

Teacher's career development in British medical school has experienced a very long process from establish to gradually mature.So far,it has already set up its system and its own characters in strategy and teacher's self-development.By analyzing characters of teacher's career development in British medical school including teacher development center,teacher's self-development and assessment for medical educators,we aimed to raise enlightenments on teacher's career development in China.

Objective To establish the quality standard of flavone extracts in licorice residue; To provide the methods and basis for the quality control of total flavonoids extracted from licorice residue.Methods TLC was applied to compare the extracts with liquiritin and licorice; UV-spectrophotometry was used to measure the content of total flavones; EDTA-2Na titration was used to determine the content of calciumion.Results In the chromatogram of the test product, the spots of the same color were displayed on the corresponding position of the control medicinal material, and the fluorescent spots of the same color were displayed on the corresponding position of the control product. UV-spectrophotometry showed glycyrrhizin had a good linear relationship in the range of 3.32–9.96 μg/mL (r=0.9997), the absorbance between 0.3 and 0.7. The average recovery rate was 102.41% (RSD=3.22%), and the average content of total flavonoids in three batches of flavonoids extract was 8.82%. The average content of calciumion was 0.107% (RSD=3.61%).Conclusion This method has good repeatability, high sensitivity and accurate results, and can be used for the quality control of flavonoids in licorice residue.

OBJECTIVEThe device of a bone age film of analysis and process was designed, can calculate the expected patient's height and identify growth level and development.

METHODSSelect the DR bone age of 100 children of 6-13 years old, used semi Lagrange algorithm of target region of interest on bone age piece (ROI) for image analysis, compared with 2 pediatric endocrinologists (A, B) who used TW3 artificial to judge bone age (two methods were detected 2 times), and report the results.

RESULTSBone age assessment process, forecast error of bone age reduced to 0.12 years.

CONCLUSIONSThis device can quickly calculate the expected patient's height and identify his growth level, improve the speed and accuracy of bone age assessment, especially in the poor medical conditions in rural and remote areas.

Bacterial Infections ; drug therapy ; Child ; Drug Resistance, Bacterial ; Humans ; Microbial Sensitivity Tests ; beta-Lactamases ; biosynthesis

Objective To explore the effect of biliary obstruction caused acute acalculous cholecystitis (AAC) on ultrastructure of gallbladder interstitial cells of Cajal (ICCs),and the possible mechanism of impaired contraction of gallbladder smooth muscle. Methods Total 60 healthy adult guinea pigs were in this study. The guinea pigs AAC model was induced by common bile duct ligation (BDL). The guinea pigs were divided into five groups equally,including sham control group (Sham),BDL for 12 hours (BDL-12),24 hours (BDL-24),48 hours (BDL-48) and 72 hours (BDL-72)groups. The gallbladder specimens were collected by the end of study. Gallbladder pathological changes were observed with HE staining under light microscope. Three muscle strips were collected of each gallbladder,fixed in constant temperature water bath with different concentration of eight peptide cholecystokinin agonist (CCK-8,1010 mmol/L,10-9 mmol/L,10-8 mmol/L,10-7 mmol/L and 10-6mmol/L),acetylcholine (Ach,10-8 mmol/L,107 mmol/L,10-6 mmol/L,10-5 mmol/L,10-4 mmol/L)and potassium chloride (KC1) (60 mmol/L). The contraction activity of gallbladder muscle strips was recorded by tonotransducer. The ultrastracture changes of gallbladder ICC in sham,BDL-12 and BDL-72 groups was examined by transmission electron microscopy. Results There was no obvious inflammation in Sham and BDL-12 groups. Compared with sham group,there were significant differences of biology score of gallbladder in BDL-48 and BDL-72 groups (P＜0. 05). After adding CCK-8,Ach and KC1,the contraction amplitude of gallbladder muscle increased in each group,and in dose-dependent manner. Compared with sham group,the effect value of each other groups decreased significantly (P＜0. 05). Compared with sham group,the morphology of ICC changed in BDL-12group,and more obvious in BDL-72 group. Conclusion Biliary obstruction can induce AAC. At the earlier stage of ACC,the impaired contraction of gallbladder smooth muscle present even without gallbladder inflammation occurrence. ICC may play an important role in impaired contraction.

Adult ; Antigens, CD20 ; metabolism ; Brain ; pathology ; Brain Neoplasms ; immunology ; pathology ; CD3 Complex ; metabolism ; Diagnosis, Differential ; Humans ; Leukocyte Common Antigens ; metabolism ; Lymphomatoid Granulomatosis ; immunology ; pathology ; Male

Objective　To study the scan technique that can completely demonstrate the structures of middle-inner ear.Methods　Ninety volunteers underwent 30° axial and 105° coronal HRCT scan.The manifestations of the ministructures of middle-inner ear were observed and their demonstration rate was calculated.The demonstration of different structures of middle-inner ear was evaluated and compared on HRCT.Results　(1)The scan planes of 30° axial and 105° coronal were correspondent to some structures of middle-inner ear and could completely demonstrate them.(2)30° axial and 105° coronal HRCT scan had their own advantages respectively in demonstrating the structures of middle-inner ear.Conclusion　The technique of 30° axial and 105° coronal HRCT scan of middle-inner ear is useful in demonstrating the structures,including the nerve,joint,ligament etc and the relationship among them.