Objective To investigate perioperative nursing of interventional therapy for patients with chronic occluded internal carotid artery. Methods We retrospectively analyzed the clinical nursing data of 12 patients with chronic occlusion of internal carotid artery who were successfully performed recanalization for the occluded vessels. Results The vital signs of all patients were normal during the procedures. The patients got favorable outcomes and no complications occurred during the perioperation. Conclusions Interventional therapy for chronic occlusion of internal carotid artery is a new technology for carotid diseases. Perfect preoperative health education and psychological nursing, comprehensive monitoring of vital signs and nerve function, strengthening body position nursing can ensure prevention of complications and the success of surgery.

Objective To develop a new visual feedback postural adjusting ability assessing system, and to study its application value. Methods Pressure sensor was used to determine the changes of the body weight center by tracing the pressure variation of the soles and heels, then eight target points in different directions were added into the software interface to enable the subject move his body weight center to the target point intentionally, finally the system was evaluated by loading on back.Results Program design was performed for the testing system. It's proved that posture adjusting ability might decrease with 20% load on back or the body leaning backwards. Conclusion The newly developed visual feedback postural adjusting ability testing system can be used to research standing balance function.

Objective To improve health care workers’(HCWs)infection prevention and control consciousness through carrying out catheter-associated urinary tract infection(CAUTI)prevention and control project,and imple-ment prevention and control measures in practical work.Methods Diagnostic criteria of CAUTI issued by the U.S. Centers for Disease Prevention and Control/National Healthcare Safety Network were adopted,from October 2013 to September 2014,monitoring was conducted on CAUTI in patients with indwelling urinary catheters for >2 con-secutive days at different types of ICUs in hospitals participated in the project .Results A total of 14 124 CAUTI cases were collected,410 patients developed CAUTI,urinary catheter usage rate was 79.33%(203 114/256 042), incidence of CAUTI was 2.02‰(410/203 114),urine specimen detection rate was 46.52%(6 570 /14 124).The detection rate of urine specimens increased from 37.24% (the fourth quarter of 2013)to 49.76% (the third quarter of 2014).Of prevention measures,the difference in the indication of catheterization was significantly different(P <0.01).Conclusion Through the development of competence building project of healthcare-associated infection pre-vention and control,prevention and control of CAUTI has achieved good intervention effect.

Objective To analyze the risk factors for ventilator-associated pneumonia(VAP) in the intensive care unit(ICU) of a hospital,and provide theoretical reference for preventing and controlling VAP.Methods ICU patients receiving mechanical ventilation for more than 48 hours between October 2013 and December 2014 were monitored by targeted monitoring method,risk factors for the occurrence of VAP were analyzed.Results A total of 483 patients received mechanical ventilation for more than 48 hours,76 (15.73％) of whom developed VAP;the overall ventilator days were 5 347 days,incidence of VAP was 14.21 per 1 000 ventilator days.Univariate analysis showed that groups of gender,age,length of hospital stay,and duration of artificial airway were all significantly different,VAP rate in male patients was higher than that in female patients(x2 =9.838,P＜0.01);VAP rate was highest in patients aged 41-70 years(x2 =10.242,P＜0.01),followed by patients aged≥71 years;VAP rate were relatively higher in patients with longer length of hospital stay and longer duration of artificial airway(x2 =59.533,P＜0.01;x2 =74.215,P＜0.01,respectively).Conclusion Incidence of VAP in the ICU of this hospital is higher,especially in male patients,patients aged 41-70 years,as well as patients with long length of hospital stay and long duration of artificial airway.

In order to investigate the application of par plana vitrectomy in the treatment of combined rhegmatogenous retinal detachment (RRD) and choroidal detachment (CD), 12 eyes of 12 cases of combined RRD and CD were retrospectively analyzed. Twelve eyes of 12 cases were subjected to par plana vitrectomy. Six mm infusion channels were used. Pars plana vitrectomy, membrane peeling and internal fluid－gas exchange with encircling scleral buckle placement were performed in a standard fashion. One patient received injection of silicone oil. Hormones were routinely administered pre- and post-operation. The results showed that the intraocular pressure was rapidly reconstructed in the 12 eyes of 12 cases, the fluid in the subchoroidal cavity was drained via the three sclera incisions. The detached choroidea replaced. No other sclera incision was needed to drain the fluid in the subchoroidal cavivity. The follow－up after operation lasted 2 to 16 months. The 12eyes were replaced anatomically. No postoperative proliferation of vitreous body and retina was induced. It was suggested that par plana vitrectomy was the first choice in the treatment of CD combined with RCD.

Sphingosine-1-phosphate receptor 1(S1PR1) is a new member of G protein-coupled receptor family. A great body of data suggest S1PR1 is capable of regulating lots of downstream signaling molecules and cellular processes. It is found that S1P/S1PR1 plays an important role in the development and mainte-nance of pain. However, it is controversial whether activation of S1PR1 would enhance or attenuate pain. Here, recent studies ＜br> and current perspectives are discussed in order to better under-stand the biological and pathological roles of S1PR1 in pain mod-ulation.

Objective To discuss the feasibility and effect of labeled antibody on targeting therapy of systemic lupus erythematosus(SLE) associated thrombocytopenia.Methods MTX-IVIG conjugate was prepared by indirect and direct cross linking,and the binding ability of it to Fc fragment was detected by indirect immunofluor-escence.The killing activity of the conjugate was detected by MTT method using murine macrophage with Fc receptor and strain U937 of human monocytic leukemia cell as targets.Results Conjugation showed stronger cytotoxicity upon target cells than free MTX,and it showed less cytotoxic effect on Fc receptor negative cells compared with the positive ones.IVIG-HSA-MTX restrained the phagocyte of macrophage.The killing effect of IVIG-HSA-MTX was significantly stronger than that of IVIG-MTX.Conclusion The conjugation can show a highly specific cytotoxicity upon mononuclear-macrophage in vitro.

Objective To explore the expression of nuclear factor-erythroid 2-related factor 2(Nrf2) and the molecular chaperone of cytoplasmic Keap1 in premature newborn rats exposed to hyperoxia.Methods Completely randomized design method was performed,one-day old preterm SD rats were randomly divided into two groups:hyperoxia group and air group.The preterm SD rats in hyperoxia group were continuously exposed to oxygen(oxygen >0.85)and air group in room air.After 1 ,4,7,10,14 days of exposure,the pre-term SD rats of two groups were sacrificed,whole lung of these rats were isolated,the lung histological chan-ges were observed by HE staining.Total lung RNA was extracted,Nrf2 and Keap1 mRNA were detected by RT-PCR.Western-blot was used to detect the changes of Nrf2 protein expression.Results (1 )Compaired with air group,the expression of Nrf2 in lung tissue of hyperoxia group significantly increased after 4,7 days of exposure(4 d:0.314 ±0.064 vs.0.521 ±0.086,7 d:0.440 ±0.121 vs.0.658 ±0.076)(P <0.05 ),the general tendency decreased after 10 days,but the expression of Nrf2 became significantly weak after 14 days of exposure in hyperoxia group(P <0.05).(2)The expression of Keap1 mRNA in hyperoxia group signifi-cantly increased in 1 ,4 days(1 d:0.352 ±0.052 vs.0.547 ±0.075,4 d:0.363 ±0.074 vs.0.658 ±0.076) (P <0.05),the general tendency decreased after 7 days of exposure,but the expression of Keap1 mRNA in hyperoxia group became significantly weaker than its expression after 10,14 days of air group(P <0.05 ). (3)In comparison with air group,Nrf2 protein expression in hyperoxia group increased after 1 ,4 days of ex-posure with no significant difference(P >0.05),but had a tendency of decreasing after 7 days.On day 10, 14,its expression in hyperoxia group became significantly weak compared with that of air group(10 d:1.325 ±0.464 vs.0.755 ±0.348,14 d:1.662 ±0.474 vs.0.867 ±0.1 15 )(P <0.05 ).Conclusion Oxidation outbreak results in the abnormal expression of Nrf2 and Keap1 in the lung of premature SD rats induced by hyperoxia exposure,which adjusts the levels of oxidative stress in the body,these changes participate in the development of hyperoxia induced lung injury,the activity of Nrf2 may be increased by hyperoxia exposure, and alleviate hyperoxia lung injury in premature rats through antioxidation of Nrf2.

Integrity education is not only one of an important aspect of moral education topics for Medical postgraduates,but also an objective requirement in the socialist market economy.Aiming at the modern medical postgraduates'lack of credibility,this paper mainly analyzes its causes such as the limitation of postgraduates'quality and the pressure of employment and dis-cusses how to strengthen integrity education for postgraduate in medical university by bringing supervisors'leading role,enhance the standardized management of employment and upbuilding credibility file etc.