Objective To discuss the problems of wire-LAN-based HIS and the implementation of wireless LAN.Methods Several technologies,such as security technology,anti-jamming technology,were used to implement wireless LAN.Results Wireless LAN,without the disadvantages of wire LAN,played a more and more important role in HIS.Conclusion Wireless LAN,being mature from the aspect of technology,is being popularized.

ObjectiveTo investigate the in vitro effect of ghrelin on membrane membrane potentail of GH3 cells.MethodsNystatin-perforated whole-cell recording configuration was used.ResultsThe membrane potentail of GH3 was decreased from-(72±4.78) mV to(54.8±4.58) mV(P<0.01) after application of ghrelin(10-7～10-8 M)ConclusionGhrelin can transiently and significantly decreased the amplitude of membrane potentail,which may contribute to the ghrelin-stimulated GH secretion from GH3 cells.

0.05);the epididymal indexes were significantly increased 6,24 and 72 hours after formalin injection(P

Objective To analyze the clinicopathological characteristics and the related factors influencing the prognosis of pancreatic neuroendocrine carcinoma.Methods The clinicpathological and follow-up data of 21 patients with pancreatic neuroendocrine carcinoma admitted between April 2000 and August 2013 in Zhongshan Hospital of Fudan University were analyzed retrospectively.The influence facts on patients' prognosis were analyzed statistically.Results Univariate analysis showed that age,stage,tumor size,degree of tumor differentiation and lymph node metastasis were factors separately influenced patients' survival.Multivariate analysis (Cox regression) revealed that age (P =0.019) was the only independent factor affecting the prognosis.Conclusions Patients with pancreatic neuroendocrine carcinoma were mostly non-functional and presented no specific clinical features.Tumors tended to metastasize and the prognosis was poor.Age was the independent factor affecting the prognosis.

Objective To evaluate the clinical application of 2000 ArthroCare System in knee arthroscopic surgery. Methods 221 cases of knee problems were treated with 2000ArthroCare System. The disorders of the 221 cases diagnosed by the arthroscopy were as follows: 73 cases of osteoarthritis, 49 meniscus tear, 29 degenerative cartilage injury, 11 plica synovitis, 11 Kaschin Beck disease, 8 ACL, 5 osteochondritis dissecans, and 2 TKA brisement. The operative procedures, such as meniscectomy, meniscoplasty, fitting of cartilage and ligament, synovectomy, and release of lateral patellar retinaculum, were done with 2000ArthroCare System and arthroscopy. Results The Lysholm Knee scores were 43.92 preoperatively, 81.96 three months postoperatively, and 92.06 six months postoperatively. Conclusion Knee problems can be effectively released with 2000 ArthroCare system vaporization under arthroscopic guidance. The advantages of this procedure are very limited tissue damage, mild reaction, less blood loss, early rehabilitation, and fine functional recovery.

Objective To study the effect of the extract of total flavonoids of chrysanthemum indicum(TFC) on adjuvant arthritis synovial cells. Methods 0.1ml of the complete Freund's adjuvant was subcutaneously injected into the right hind feet pads of the SD rats.24 days after immunity synovial cells in knee joint were treated with TFC and inhibition of proliferation was measured with MTT assay.DNA fragmentations were analyzed with DNA gel electrophoresis.Fluorescence staining of Hoechst 33258 to observe apoptotic body.Results The IC_50 of TFC on synovial cells was 112mg/L.DNA gel electrophoresis showed ladder-like strap.Apoptotic bodies were observed by Hoechst 33258.Conclusion TFC can inhibit proliferation and induce apoptosis in synovial cells,and exerts therapeutical effect on rheumstoid arthritis.

ObjectiveTo identify the influence of cholesterol on insulin-secreting cells.Methods MIN6 mouse insulin cells were cultured in vitro. After confluence of cells, on one hand, free cholesterol in series concentrations was added to cultu re medium to act for 24 hours, and on the other hand, free cholesterol in same c oncentration was added to culture medium to act for different periods. MTT test was used to evaluate the viability of MIN6 cells.Results25μmol/L free cholesterol significantly decreased the viability of MIN6 c ells after 24 hours and 100μmol/L free cholesterol significantly decreased the viability of MIN6 cells after 12 hours and induced cells death after 24 hours.Conclusions Free cholesterol decreases viability of MIN6 cells in a dose-dependent and time-dependent manner, and it is indicated that elevated free cholesterol concentration in blood may be one factor involved in the dysfunction of pancreatic β-cells.

Objective:To express human epididymis protein 4 (HE4) in prokaryotic cells,purify the expressed product and de-termine its activity by immunoassay kit.Methods: The gene encoding HE 4 was cloned using RT-PCR technique from total RNA of ovarian carcinoma cells ES-2,the amplified HE4 gene was cloned into prokaryotic expression vector pGEX-4T-1 and PET26b respective-ly.The recombinant plasmid pGEX-4T-1-HE4 and PET26b-HE4 were constructed and transformed into E.coli BL21 cells respectively, and protein ( GST-HE4 and His-HE4 ) expressions were induced by IPTG and identified by SDS-PAGE and commercial ELISA kit.Results:Restriction analysis and sequencing proved that recombinant plasmid pGEX -4T-1-HE4 and PET26b-HE4 were constructed correctly.The expressed recombinant proteins ,with the relative molecular mass of about 38 000 and 12 000 ,showed specific binding to monoclonal antibody against HE 4.Conclusion:Two kinds of recombinant HE 4 protein are successfully expressed in prokaryotic cells , which laid a foundation of preparation of immunoassay reagents.

Objective To explore the influence of G4 cyberknife treatment of large hepatocellular car-cinoma on liver function,and to evaluate its treatment safety.Methods Sixty-three large liver cancer patients treated with routine G4 cyberknife treatment were retrospectively analyzed,and then statistical analysis of the difference in liver function before and after treatment was conducted.Results After G4 cyberknife treatment of 1 2 months,the levels of ALT,ALP,TBIL,PA were respectively 23.00 U /L,1 1 1 .00 U /L,1 3.70 μmol/L, (81 .87 ±1 3.94)%.Compared with the levels before treatment [28.00 U /L,32.00 U /L,1 1 .30 μmol/L, (86.07 ±1 4.07)%],there were no signi-ficant differences found (Z =-1 .677,P =0.094;Z =-0.504, P =0.61 4;Z =-1 .945,P =0.053;t =1 .271 ,P =0.21 3).The level of ambumin was (34.84 ±4.75)g/L at 1 2 months after treatment,which decreased and the difference compared with the level before treatment [(37.45 ±4.1 4)g/L]was significant (t =3.357,P =0.002).The Child-Pugh grade was 5.80 ±1 .1 7 respectively at the time points of 1 2 months after treatment,and no significant difference was found compared with the Child-Pugh grade before treatment (5.48 ±0.81 ,t =-1 .668,P =0.1 06).Conclusion G4 cyberknife treatment does not cause liver injury.It is safe and reliable in large liver cancer treatment.So,it is worth widely clinical popularizing.

Resveratrol is a natural polyphenolic substance with a variety of bioactivities,such as anti-oxidation,anti-tumor and apoptosis induction.This paper summarized the recent research progress of resveratrol induced cancerous cell apoptosis,including human cervical cancer HeLa cells,leukemia cells,hepatoma cells and gastric cancer cells,and analyzed the molecular mechanism behind resveratrol-induced cell apoptosis in tumor.In addition,resveratrol was investigated by blocking the cell cycle,regulating the expressions of related genes and proteins and mitochondria-induced apoptosis pathways as a potential application of cancer drugs to clinical researches.