Objective To observe neutrophil activation and protease imbalance in airway of children after foreign-body aspiration(FBA).Methods Bronchoalveolar lavage fluid(BALF) was obtained through fiberoptic bronchoscopy.The supernatant was assayed for the concentration of neutrophil elastase(NE) using enzyme-linked immunosorbent assay(ELISA) and elastase inhibition capacity(EIC)/free elastase activity using a colorimetric assay.The cell pellet were smeared for the expression of ?1-antitrypsin(?1-AT) using cellular immunohisto-chemistry and cytologic analysis by Wright-Giemsa stain.Results Percentage of neutrophil,concentration of NE and the expression of ?1-AT in BLAF group,pair group and pneumonia group significantly increased compared with that of control group(Pa0.05).The ratio of Lib NE in FBA,par and peumcria group was 30.3%,27.3% and 22.7%.Conclusions FBA induces similar airway neutrophil activation and protease imbalance to bacterial pneumonia.The contralateral airway showes the same change as the foreign body side.

The main obstacles and limitations on development of advanced life-rescuing information technology are identified based on analysis of existing information technology.The research ideas on digital information to replace analog information and response technology in lieu of new type life-rescuing information technology are putted forward,which combines RFID technology with biomedical engineering technology to research and design the life transponder that application bottleneck and advantage of the technique are analyzed.

Access of safe, effective, convenient and affordable medical and health care services to the people is set as the goal of public hospitals health services as stated in the "Guidelines for Public Hospitals Pilot Reform". Such a goal, however, can hardly be achieved by mechanism changes within the public hospitals. The input and output of public hospitals rely critically on such factors as the input mechanism, regional pattern of healthcare system, the economic and industrial conditions of the region,payment quota and payment approval procedures of medical insurance. This paper set off from the input compensation mechanism of public hospitals in China and analyzed the input and output characteristics of the hospitals. Furthermore, the paper proposed to establish an input compensation mechanism based on public welfare performance for such hospitals. This provided further reference for improving the management of public hospitals and building a public welfare-oriented operation mechanism of public hospitals.

Objective To evaluate the soft tissue profile in adults with unoperated isolated cleft palate. Methods Twenty patients older than 16 years(median age,18.4) with unoperated isolated cleft palate were enrolled.Soft tissue lateral cephalograms were traced and compared with those of cleft operated patients and class-Ⅰocclusion individuals.The results of various measurements were analyzed with ANOVA by SPSS11.5. Results In adults with unoperated isolated cleft palate,there was restriction at the top of the upper lip,and the antelabrum of upper lip and the lower lip were found normal. Conclusion The soft tissue profile in adults with unoperated isolated cleft palate exhibits almost the same characteristics as the corresponding hard tissue,and there is covering over effect of the soft tissue to some extent.

s of catheter,and extend the service life of a catheter.

Objective To investigate the possibility of early diagnosis of colorectal cancer by combined detec-tion of tumor markers dermcidin(DCD),CA199,CA724 and CEA. Methods We selected 81 colorectal cancer patients and 30 healthy individuals. Serum levels of DCD were detected by ELISA,and serum levels of CA199, CA724 and CEA were detected by electrochemical luminescent immunoassay,and the expression of DCD in colorectal cancer tissue and para-carcinoma tissue was measured by Western blot. Results Serum levels of CA199,CA724,and CEA were significantly higher in colorectal cancer patients than in healthy individuals(P<0.001). Combined detection of DCD,CA199,CA724 and CEA had a greater AUC(0.942)for identifying colorec-tal cancer from the controls. The expression of DCD was significantly higher in colorectal tissue than in para-carci-noma tissue(P<0.05). Conclusions Level of DCD expression was significantly higher in colorectal tissue than in para-carcinoma tissue. Expressions of serum DCD,CA199,CA724,and CEA may be a marker in diagnosis of can-cer,with higher clinical value for the adjuvant diagnosis of colorectal cancer.

Objective To explore the relationship between CA repeats polymorphism in the promoter region of IGF-1 gene and MS in the Han nationality.Methods 1047 subjects were recruited from general population of Dongcheng District in Beijing.MS was diagnosed based on the criteria for MS in 2005 by IDF.Genomic DNA was extracted by standard methods.PCR,Genescan,Genotyper and direct sequencing were conducted to screen CA repeats polymorphism in the promoter region of the human IGF-1 gene.Levels of plasma glucose,lipids,serum insulin and IGF-1 were determined.BMI and ISI were calculated.Results The prevalence of MS in (CA) 19 homozygote was lower than that in (CA) 19 heterozygote (9.1% vs 18.3%,x2 = 8.55,P ＜ 0.01) and without (CA) 19 (9.1% vs 24.0%,x2 = 18.05,P ＜ 0.01).The level of serum IGF-1 had differences among the three groups [ (114.0 ± 52.6) μg/L vs (136.6 ± 80.5) μg/L vs (129.2±49.1) μg/L,F =3.16,P ＜0.05],(CA)19 homozygote had lower serum IGF-1 than (CA)19heterozygote and without (CA) 19.BMI,WC,TG,FIns,2hIns and ISI had difference among the three groups (P ＜0.05).Conclusions (CA)19 repeats polymorphism in the promoter region of IGF-1 gene was significantly associated with MS in Han nationality.

Objective To explore whether LDL and oxLDL may induce kidney tubular epithelial-mesenchymal transition (EMT) and its mechanism. Methods The second generation human kidney tubular epithelial cells (TECs) were cultured for 24 hours in different conditions as (1) serum free as control, (2) treated with LDL (50 ?g/ml) , (3) treated with oxLDL(50 ?g/ml), (4) treated with LDL(50 ?g/ml) plus PD98059(5 ?mlo/L) , (5) treated with oxLDL(50 ?g/ml) plus PD98059 (5 ?mol/L). The expression of cytokeratin, E-cadherin, ?-SMA and vimentin was assessed by immunofluorescence and Western-blot. Western-blot was also performed to test the expression of collagen I and phospho-ERKl/2MAPK and phospho-GSK-3?. Results oxLDL was more potently in inducing tubular EMT than LDL at 24 hours as demonstrated by de novo a-SMA expression, increased expression of vimentin, partial loss of cytokeratin and reduction of E-cadherin expression by TECs. The expression of collagen I and phospho-ERKl/2MAPK and phospho-GSK-3? was increased in TECs stimulated by LDL or oxLDL. MAPK inhibitor (PD98059) inhibited the phosphorylation of GSK-3P and almost completely blocked oxLDL-induced tubular EMT. However, PD98059 alone was able to inhibit LDL-induced tubular EMT partially. Conclusions oxLDL is more potently in inducing tubular EMT than LDL. The ERKl/2MAPK-GSK-3? signaling pathway mediates the LDL or oxLDL-induced tubular EMT.