10 beats/min) to be with frequent monomorphic ventricular ectopic beats originating in the right outflow tract. Using activation-mapping for the earliest endocardial activation of spontaneous monomorphic ventricular ectopic beats, the site was ablated by RFCA.Results The immediate successful rate was 100% (28/28). Holter monitoring before and after ablation found monomorphic ventricular ectopic beats:15.836-32.419 beats/24 h vs 0-1.236 beats/24 h.Following-up of 6-24 months found all the 28 patients living in normal state.No complication occurred.Conclusion RFCA of frequent monomorphic ventricular ectopic beats originating in the right outflow tract is safe and effective.

Objective To study the role of ventricular responses(VR) in radiofrequency catheter ablation (RFCA) of idiopathic ventricular tachycardia(VT).Methods Thirteen patients underwent RFCA by using a combination of surface ECG,activition mapping and VR.The ablation targets were primarily selected by activition mapping and was determined by the VR in RFCA,and then,the final ablation target was determined and ablated where VR and VT had the same ECG results.Results Thirteen patients were successfully ablated.The VRs showed:the VR induced by RFCA in sinus rhythm was just the same as VT;intermittent sinus rhythm appeared between VT;two couple or couplets,or premature beats appeared intermittently in sinus rhythm,and finally sinus rhythm appeared;the VR induced by RFCA was not the same as VT.Conclusion The ablation target should be the site where the VR induced by RFCA is just the same as VT;the occurence of VR that is just the same as VT can be the predictor of successful ablation.

Insulinoma-glucagonoma clone 20 can express at least 6 isoforms in human cells.These isoforms can affect cell apoptosis and proliferation through apoptosis related signaling pathway,such as TRAIL or TNF signaling pathways.Furthermore,insulinoma-glucagonoma clone 20,as a GTP-GDP exchange factor,participates in the transportation of nerve synaptophysins.

Objective:To explore the specific changes and correlations of sex hormones and lipid metabolism in overweight and obese boys aged 9-12 years.Methods:Seventy-two male subjects (9 to 12 years old) were divided into normal weight group ( n=42), overweight group ( n=15), and obese group ( n=15). Plasma sex hormone levels and lipid levels were detected by chemiluminescence immunoassay and ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC/QTOF/MS). All data were analyzed by multivariate statistics analysis. Results:(1) The serum concentration of sex hormone-binding globulin (SHBG) in obese group and overweight group was significantly lower than that in normal weight group, and the serum concentration of SHBG in obese group was significantly lower than that in overweight group ( P<0.05). The serum concentrations of dehydroepiandrosterone (DHEA) in overweight and obese group were significantly higher than those in normal weight group ( P<0.05). (2) There were 171 kinds of differential lipid compounds between normal weight group and overweight group, 218 species of differential lipid compounds between normal weight group and obese group, and 34 species of differential lipid compounds between overweight and obese group. Among them, 150 kinds of lipid compounds in normal weight group were significantly different from those in overweight and obese group. (3) SHGB was positively correlated with phosphatidyl cholines (PC) (20∶0/0∶0) and PC[18∶1(9E)/0∶0]( r=0.6, P<0.05), DHEA was positively correlated with diacylglycerol (DG)[17∶2(9Z, 12Z)/22∶0/0∶0]( r=0.5, P<0.05). Conclusions:9-12 years old overweight and obese boys had early growth and development, but sex hormone levels were not synchronized with growth and development. The serum DHEA level in overweight and obese boys was significantly increased, while the level of DG [17∶2 (9Z, 12Z)/22∶0/0∶0] was significantly increased, and the serum SHGB concentration was significantly decreased, while the vast majority of PC was significantly down-regulated. The mechanism of these changes needs to be further studied.

Objective To investigate the value of emergency hysterectomy on arresting severe postpartum hemorrhage Methods A retrospective analysis was performed on 10 cases of hysterectomy by reason of postpartum hemorrhage between Jan 1990 and Dec 2000 Results All the patients were severe postpartum hemorrhage that couldn't be controlled by conservative treatment. Among them,there were 5 cases of DIC,2 cases of placental adherence,1 case each of uterine atony,uterine rupture and infection of uterine incision. Blood loss averaged 2 427 ml. All the 10 patients were recovered. Emergency hysterectomy was related to times of gestation and delivery and also to delivery pattern Conclusion Emergency hysterectomy is one of the effective methods on arresting severe postpartum hemorrhage.

Objective To explore the effect of transitional care model (TCM) on the prevention of complications in patients with severe cerebral infarction. Methods Sixty patients with severe cerebral infarction were randomly divided into the experiment group and the control group, 30 cases in each group. The control group was given conventional nursing and the observation group received TCM. The two groups were compared in terms of the incidence of complications and re-admission rate. Result The incidence of complications and the rate of re-admissions in the experiment group were significantly lower than those of the control group (P<0.05). Conclusion TCM can reduce the incidence of complications in patients with severe cerebral infarction, lower the incidence of hospital admission, relieve the pain of patients and improve the quality of life of patients.

Polyacrylic acid was firstly grafted by N-amino-4-N-methylpiperazine-1,8-naphthlimide (AMN) to prepare a amphiphilic polymer, which was self-assembled in water producing nanoparticles called as PAAMN.Then the morphology, structure and fluorescence properties of PAAMN were investigated by various methods including transmission electron microscopy, dynamic light scattering, ultraviolet-visible spectroscopy (UV-Vis), nuclear magnetic resonance spectroscopy (HNMR) and fluorescence spectroscopy.MTT assay was carried out to assess the cell compatibility of PAAMN.Finally, the fluorescence from PAAMN self and HeLa cells incubated with PAAMN was observed by fluorescence microscope.The results revealed that PAAMN had spherical structure, in which naphthlimide fluorphores were immobilized in the polyacrylic acid matrix with the degree of substitution of 4.1%.Under the physiological pH condition, PAAMN excited at 390 nm could emit strong and stable fluorescence at 534 nm.In the range of pH 4.0-10.0, its excitation and emission wavelengths had no obvious change.The fluorescence intensity of PAAMN increased with the decrease of pH values, but the pH sensitivity of PAAMN was much lower than that of AMN.PAAMN had good cell compatibility.From the pictures of fluorescence imaging, it was found that both PAAMN self and cells-engulfed PAAMN could emit green fluorescence upon excited at 390 nm, indicating the potential of the developed nanoparticle for cell imaging.

Objective To understand the existing deficiency in the work of preventing HIV transmission from mother to child.Methods The diagnostic occasions of 179 HIV positive pregnant women(189 pregnant times)in some counties in Hubei,Shanxi,and Hebei were collected,including measures for prevention.The reasons for the missing prevention for HIV positive pregnant women were analyzed.Results The HIV positive rate in pregnant women in the counties enrolled in this study was 0.26‰.Percentage of HIV pregnant women who were found in antepartum,intrapartum,and postpartum were 66.7%,7.4%,and 25.9% respectively.Some HIV positive pregnant women missed the prevention in all of three periods.In HIV positive pregnant women found antepartum,some rejected prevention.The missing reason for HIV positive pregnant women found intrapartum failed to get ARV drug.HIV positive pregnant women found postpartum missed the prevention.Conclusions There is some progress in the work of preventing HIV transmission from mother to child in China,but some HIV positive pregnant women can not be detected in time,and the percentage of HIV pregnant women who have received comprehensive measures is low.The work of PMTCT therefore needs to be improved.

Objective:To research the effects and mechanism of Fuganning(FGN) on rats with hepatic fibrosis.Methods:Rat immuno hepatic fibrosis model was induced by intraperitoneal injection of porcine serum,to observe the effect of FGN on HA,LN,CⅣ,the pathological and ultrastructure chages of hepatic tissue.Results:The level of HA,LN,CⅣ decreased,the pathological chages and the collagen fibresis decreased significantly in FGN group,this groups had significanc difference to model group(P

The development and present situation of high power and luminous flux LED is introduced. The feasibility of high luminous flux LED in the field surgery illumination is analyzed in detail. Then the realizable plans are discussed separately from device, driving circuit, optical system and mechanical system.