Enterovirus 71(EV71) infection complicated with neurogenic pulmonary edema (NPE) is an important complication and the main death cause of hand-foot-mouth disease in children. The exact pathogenesis has not yet fully understood. Peripheral sympathetic nervous system hyperexcitability has been recognized, but its central positioning and machanisms are debatable. In recent years, people emphasized the release of cytokines caused by the brainstem injury and/or systemic inflammatory response also plays a very important role in the formation of NPE.The interventions at present are mainly symptomatic treatment in the nervous system involvement, respiratory and circulatory failure. Vaccines are still in the experimental phase of exploration. There is a certain distance from clinical application.

Electrically Powered Wheelchairs Standards (GB/T 12996-1991) is being modified in China. With the help of the test methods from the international standard, European standard and Japanese standard, in contrast to Chinese national standards, the article discussed the new Electrically Powered Wheelchairs Standards.

As one of pharmaconutrients,it has been proved that ?-3 polyunsaturated fatty acids can regulate inflammation and immunological function because not only its metabolites are different from other lipids but also it can affect intracellular signal transduction.So the structure、composition and molecular mechanisms of ?-3 polyunsaturated fatty acids are reviewed in this article.

Objective To analyze the relationship of self-consciousness,internet addiction and life satisfaction in rural adolescents.Methods 443 rural adolescents were investigated with Children's Self-concept Scale,Adolescent Life Satisfaction Scale (ALSS) and Secondary School Students Internet Addiction Diagnostic Scale (IADDS).Results ①The differences between left-behind and non-left-behind rural adolescents were significant in self-concept ((51.28± 12.86) vs (55.01 ± 11.58)),ALSS((27.68±7.38) vs (31.25± 4.36)) and IADDS((4.87±3.38) vs (3.22±2.39))(t=-3.121,P＜0.05;t=-6.384,P＜0.05;t=5.968,P ＜0.05).The differences between boys and girls were significant in self-concept ((52.28± 12.44) vs (55.35±11.66)),ALSS((29.36±6.36) vs (30.71±5.16)) and IADDS((29.36±6.36) vs (30.71±5.16))(t=-2.680,P＜0.05;t=-2.424,P＜0.05;t=5.146,P＜0.05).The differences between only child and non-only child were significant in ALSS ((29.04± 6.77) vs (30.56 ± 5.18)) and IADDS ((4.44± 3.08) vs (3.05 ±2.45))(t=-2.659,P＜0.05;t=2.818,P＜0.05).The differences of different academic performance were significant in self-concept,ALSS and IADDS (F=-4.788,P＜0.05;F=9.127,P＜0.05;F=17.387,P＜0.05).②There was a significant negative correlation between self-consciousness and internet addiction(r=-0.337,P＜0.01).There was a significant positive correlation between self-consciousness and life satisfaction (r=0.660,P＜0.01),and there was a significant negative correlation between life satisfaction and internet addiction.(r=-0.484,P＜0.01).③Life satisfaction was the mediator variable between self-consciousness and internet addiction,and the mediating effect accounted for 90.8％ of the total effect.Conclusion Self-awareness influence internet addiction through life satisfaction.

Objective To measure the changes of portal venous pressure before and after APS by percutanous portal vein catheterization and to quantitatively analyse the correlation between portal pressure and portal hypertension.Methods All the 18 central arterioportal shunts (APS) patients with hepatocellular carcinoma (HCC) were treated with embolization of APS and TACE, and the pressure of portal vein was measured by percutaneous portal vein catheterization pre- and post-embolization of APS. Color dopplar sonography and endoscopy were employed to investigate before and 2 weeks after embolization in all patients. Results The pressure of portal vein decreased significantly after embolization, and the decreased rate was 5.4%-33.3% with the mean rate 20.1%. After the embolization, the width of portal vein decreased and the blood flow velocity of portal vein increased significantly, P

Objective To investigate the number,distribution and expression intensity of dendritic cells and T lymphocytes in human cervical intraepithelial neoplasia and invasive carcinoma for seeking biotherapeutic evidence of cervical carcinoma. Methods The number,distribution and expression intensity of CD-(1a),S-100,CD-3, CD-8 positive cells were determined in cervical intraepithelial neoplasia and invasive carcinoma and human normal cervix tissue as the control,by using immunohistochemical technique and computerized imaging analysis system. Results Compared with human normal cervical tissue,the number and the expression intensity of CD~+-(1a),S-100~+,CD~+-3,CD~+-8 cells in cervical intraepithelial neoplasia significantly increased(P

Laterally spreading tumor is a new type of colorectal tumor found recently.For its particular shape and develptment of tumor,LST is divided as an independent tumor.LST is associated with colorectal cancer and more research is done on it .The progress of its epidemiology, oncomolecularbiology, diagnosis and therapy is reviewed.

Iodine is the essential element of the human body. Both of iodine deficiency and iodine excess can produce different biological effects on organisms in various degree . It not only can damage the thyroid gland but also influence the nervous system and oxidize system, even damage hereditary material and immune system. The studies of the different biological effects of iodine deficiency and iodine excess on the cells and organisms can play an important role in unveiling the mechanisms of iodine deficiency disease and iodine excess disease. It also can offer the solution for preventing and curing the relevant disease of iodine.