Objective To explore the application of integrating 64-slice CT image with three-dimensional electroanatomic mapping(Carto-Merge) in guiding catheter ablation of atrial fibrillation(AF).Methods Fifteen patients with drug-refractory AF received catheter ablation of AF.64-slice CT scan was performee 1-3 days prior to the ablation procedures.Using a novel software package,the left atrium(LA)with PVs was segmented and extracted for image registration with a combination of landmark registration and surface registration.Results The integration of the CT image into the electroanatomic mapping system was performed successfully in all patients with an error of 2.11?0.82 mm.Thirty pairs of PVs were electrically isolated after circumferential rediogrequency pulmorary rein ablation.The mean procedure time was 170.51?38.47 minutes.Cardiac tamponade occurred in one patient.All the fifteen patients were free of AF recurrence after 3 months of follow up including the 2 cases of persistent AF who required antiarrhythmic drugs.No thromboembolic events or stenosis were observed.Conclusion Integration of 64-slice CT image into the CARTO system successfully performed in patients undergoing catheter ablation of AF and enhance the ablation success rate.

AIDS has become a global disease,and a variety of drugs are used in the treatment of AIDS ,but the interindividual variabilities in efficacy and toxicity remain important limitations for the use of these drugs.Studies have shown genetic polymor-phism is the main reason for interindividual variabilities of drug reaction.In recent years,scholars focused on the pharmacog-enomics of anti-AIDS drugs and found that genetic polymor-phisms,in large part,determine the interindividual variabilities of the responese of these drugs.This paper reviews the research progress on pharmacogenomics of the four types of anti-AIDS drugs commonly used in China,including nucleoside reverse transcriptase inhibitors (NRTIs),non-nucleoside reverse tran-scriptase inhibitors (NNRTIs),protease inhibitors (PIs)and integrase inhibitors (raltegravir).

Objective To determine the relationship between serum adiponectin level and chronic inflammation,atherosclerosis in maintenance hemodialysis(MHD)patients.Methods Totally 60 MHD patients and 30 healthy volunteers were included in this study.Serum adiponectin level(ADPN)and C-reative protein(CRP),interleukin-6(IL-6)were measured.Carotid initial-medial thickness(IMT)and brachial arterial vasodilation were determined by echocardiography.Results Serum ADPN level(0.99?0.37)was higher in MHD patients than that(0.39?0.14)in controls.The ADPN level of higher IMT group was lower than that in normal IMT group.CRP,IL-6 and Cartid IMT were negatively correlated with ADPN(r=-0.22,-0.31-0.26,P

Objective To conclude the practical nursing experiences of the infantile actue necrotizing fasciitis treated with vacuum sealing drainage(VSD) and continuous irrigation.Methods 21 cases of the infantile actue necrotizing fasciitis treated with with VSD and continuous irrigation were reviewed from January 2009 to December 2014.The nursing experiences of observation for the state of the illness,the safety management of VSD,the management of medication,mental nursing and health education were summarized.Results 21 infants all recovered and were discharged.Postoperative follow up 6 months later were conducted.No obvious disabilities of the extremities were found.Among them,8 cases were treated with VSD and continuous irrigation for 2 weeks and then had routine wound dressing changing for 10 days,the wound almost healed when discharged.13 cases were treated with VSD and continuous irrigation for one week and then had routine dressing changing for 12 to 13 days.The wound healed when discharged.No skin necrotizing,no scar of the incision and no other complications were detected.Conclusions Using VSD and continuous irrigation to treat the actue necrotizing fasciitis in infants are of great significance for the nurses to reduce the postoperative complication and promote rehabilitation doing as follows:turning over with the postoperative nursing of VSD in a standard manner,observation and management of the incision area,maintenance of the irrigation and VSD;observation and assessment of the infant's condition,management of the medication,mental nursing and health education.

Objective:To investigate the inhibitory effect of dihydroartemisinin on non-small cell lung cancer H1299 cells.Methods:Through the CCK-8 method for determining the IC 10 of dihydroartemisinin ,choose low dose IC 10 as the experimental concentration,CCK-8 to observe artemisinin in low doses of H1299 cell proliferation, cycle and the influence of radiation sensitivity.Results:IC10 of dihydroartemisinin was 14.87 μmol/L,dihydroartemisinin could inhibit proliferation of H 1299 cells,slow down the cell cycle , and increased the radiation sensitivity.Conclusion: Dihydroartemisinin can inhibit cell proliferation , cell cycle arrest in S phase ,increase the radiation sensitivity.

Adolescent ; Adult ; Female ; Humans ; Male ; Methanol ; poisoning ; Occupational Diseases ; chemically induced ; diagnosis ; therapy ; Poisoning ; diagnosis ; therapy

OBJECTIVETo deposit silver nanoparticles on a titanium surface to obtain antibacterial properties. To reduce the incidence of peri-implantitis, and improve the success rate of implantation.

METHODSA silver nanoparticle-modified titanium (Ti-nAg) surface was prepared using silanization method, and its surface was characterized by using X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectrometer (EDX). Two species of bacteria, namely, Staphylococcus aureus and Escherichia coli, were used to test the antibacterial effect of Ti-nAg surface.

RESULTSScanning electron microscope (SEM) revealed that a small quantity of silver nanoparticles were deposited on the titanium surface. XPS analyses revealed that 6.8% of silver was present on the titanium surface. After 24 h of incubation, 94.23% of Staphylococcus aureus and 95.34% of Escherichia coli were killed on the Ti-nAg surface.

CONCLUSIONResults suggest that silver nanoparticle-modified titanium is a promising material with an antibacterial property that may be used as an implantable biomaterial.

Objective To investigate the effect of Hedysarum Polybotys saccharide(HPS)on insulin resistance rats.Methods The model of type 2 diabetic-insulin resistance rat was successfully made by STZ and high caloric diet.Then the rats were intervene by Metformin(MT)and HPS.Results Compared with the model group,the level of blood glucose,INS and CP were lowered,ISI were improved and FFA were restrained by HPS.Conc(?)sion HPS can reduce the insulin resistance in multiple ways.

Objective The cancer risk of patients with diabetes mellitus who are treated by metformin declines remarkably in comparison to patients receiving other drug therapies.The article was to investigate the relationship between antineopastic activity and fatty acid synthase (FASN) of metformin in human hepatocellular carcinoma cell(HCC) line HepG2. Methods HepG2 cells were treated with various concentrations of metformin( 0, 1, 5, 10, 15 mmol/L) for 24, 48 and 72 h respectively and cell growth was assessed by CCK-8 assay.Positive control(paclitaxel 10μg/mL) and negative control(metformin 0mmol/L) were set up simultaneously.After being treated with doses of metformin(0, 5, 10,15mmol/L) for 72h, protein expression levels of AMPKα、P-AMPKα、FASN、P-mTOR and P-Akt were measured by western blotting analysis and FASN mRNA expression levels were measured by RT-PCR. Results Being treated with vari-ous doses of metformin(1, 5, 10, 15 mmol/L) for 24, 48 and 72 h, the growth of HepG2 cells were inhibited by metformin in dose-dependent and time-dependent manner( P<0.05) .The growth inhibition rate approached 50%after being treated with metformin for 72 h, and the growth inhibition rate were all greater than 50%after being treated with 15 mmol/L of metformin.At 72 h after the treatment of various do-ses of metformin(0, 5, 10, 15 mmol/L) on HepG2 cells, the protein expression of P-AMPK increased with the rise of metformin concentra-tion, while the protein expressions of P-mTOR and FASN decreased as the metformin concentration increased.Compared with negative control group, the protein expression levels of P-AMPKα, P-mTOR and FASN all changed significantly in 10 mmol/L group and 15 mmol/L group(P<0.05).However, there was no significant difference as to the protein expression levels of P-Akt in various metformin concen-trations( P>0.05) .FASN mRNA expression levels decreased significantly in all metformin-treated groups( P<0.05) . Conclusion Met-formin actitiviates AMPK, inhibits mTOR and downregulates FASN, which are implicated in its antineopastic activity on HCC.Although metformin inhibits mTOR activation, it is not involved in Akt upregulation through a negative loop.

Objective In order to provide best nursing services to transfusion patients in OPD, demands of transfusion patients in OPD and cognition of nurses to these demands were investigated. Methods By us-ing self- designed questionnaires which were modified and evaluated by specialists. Its coefficients of relia-bility and validity were above 0.91. Information about demands of transfusion patients in OPD and cognition of nurses to these demands were gathered and statistically analyzed. Results The investigation results showed that demands of patients in OPD were much higher than nurses' perceptibility. And there were dif-ferences among all kinds of patients. Conclusions Transfusion patients in OPD need better services. There exists differences between demands of patients and cognition of nurses to these demands. In order to give better nursing services, nurses should give intensive care to patients on safe, love and home, respect and self- actualization.