The development of cancer gene vaccineis gradually maturing,common genes mainly include cytokine gene vaccines,multi-gene combined vaccines,gene-transfered dendritic cell vaccines,and so on.In re-cent years the development of cancer gene vaccines gradually tend toward looking for gene vaccine adjuvants,or exploration of the combination of different genes to achieve a more effective therapeutic purposes.

Objective This study is to conduct an overall assessment of social function of elderly pa-tients with urinary incontinence (UI) and the factors that affect the social function exactly. Thus, some nurs-ing intervention can be put forward for the patients. Methods The investigation was carried out with inter-national consultation on incontinence questionnaire short form (ICI-Q-SF), incontinence quality-of-life scale (I-QOL) and social disability screening schedule (SDSS). Results The mean score of SDSS of patients was 4.0, this score was between patients with neurosis and patients with mental illness. The number of elderly pa-tients with UI investigated in this research who had social disability was 90. The incidence of social disability was 81.82%. Age and UI were the main factors affecting the social function of elderly patients with UI. There was significant correlation between social function and quality of life, the more serious of social disability, the poor of life quality. Conclusions Significant social disability exists in the investigated elderly patients with urinary incontinence. Some effective nursing interventions must be taken to improve the situation and increase their survival quality.

Objective:To explore if galE knock-out mutant of Campylobacter jejuni(CJ) have a changed lipooligosaccharide(LOS) structure.Methods:Lipooligosaccharide from parental strains(CJ HB9313) and mutant strains were isolated and purified.The purified LOS preparations from parental and mutant strains were resolved by Tricine SDS polyacrylamide gel electrophoresis(PAGE),analyzed by silver staining and Western blot,tested for reaction with the ganglioside-binding ligands of cholera toxin(CT).Results:Silver staining showed that the parent strain expressed a LOS molecule of around 5 5 kD,whereas the galE mutant strain expressed a molecule of 4.5 kD.The Western blot showed that the LOS,expressed by galE mutant strain,no longer reacted with antiserum raised against CJ HB9313.Compared with parent strain,the mutant lost reactivity with CT.Conclusion:These results indicate that LOS molecule of galE mutants is truncated and removes epitopes that react with antiserum and ganglioside-like structures.The absence of these structures in the galE mutants may enable the development of a safe,live-vaccine without the possibility of inducing an immune response to host gangliosides.

Objective To explore methods of diagnostic and treatment for renal cortical abscess to reduce its misdiagnosis.Methods Eleven cases of renal cortical abscess diagnosed and treated at Beijing International Airport Hospital during 1991 to 2003 were reviewed and analyzed.Results Among the 11 patients with renal cortical abscess,diagnosis was established in nine(82%)before treatment,seven were cured by incision and drainage,one was cured by incision and drainage only after failure in percutaneous nephropuncture,and one was cured by intravenous injection of antibiotics.Two cases(18%)were misdiagnosed as renal cancer and radical nephrectomy were performed for them.Conclusions Diagnosis for renal cortical abscess should be based on combination of patients clinical manifestation,laboratory examinations and imaging findings.Incision and drainage is the choice of treatment for renal cortical abscess.

AIM:To investigate retinal vascular endothelial growth factor(VEGF)level and retinal cells apoptosis in the early stage of diabetic NOD mouse retina.METHODS:Animals were divided into the control group(non-diabetes mice)(2,4,6,8,12 weeks group,n=30)and diabetes group(2,4,6,8,12 weeks group,n=30).EUSA(Enzyme-Linked Immunosorbent Assay)was performed to detect VEGF level in both serum and retina.Transmission electron microscope method was used to examine retinal cell apoptosis.RESULTS:Compared with the control group,VEGF levels in serum and retina were increased significantly in the NOD group(12 weeks:4.9±0.4μg/g versus 0.19±0.1μg/g in serum sample,P ＜ 0.01;165.0±9.0μg/g versus 18.0±4.0μg/g in retinal sample,P＜0.01).There exists a positive correlation between serum VEGF and retinal VEGF levels in the early diabetic NOD mice(γ=0.9902,P=0.001).The number of the cells apoptosis in the ganglion significantly in the NOD group(P＜0.01).CONCLUSION:The high VEGF expression may be contributed to increase retinal cells apoptosis.Many factors associated with retinal VEGF expression might involve in the early diabetes stage.

Diabetes is a complex and heterogeneous disorder presently affecting more than 100 million people worldwide and causing serious socio-economic problems. Spontaneous rodent models of diabetes mellitus have proved invaluable in understanding the pathogenesis, complications, and genetic or environmental influences that increase the risks of diabetes. We have reviewed here in the development and characterization of spontaneous rodent models that displayed most features commonly associated with diabetic retinopathy.

Objective:To establish a sensitive and fast HPLC method for determining cucurbitacin IIa in rat plasma and investigate the pharmacokinetic characteristics after intravenous administration. Methods: The analysis was performed on a Dikma Diamonsil C18 column (250 mm × 4. 6 mm, 5 μm) at 35℃ with the mobile phase of acetonitrile-water (45∶ 55, v/v) and the UV detection at 212 nm. The plasma samples were collected after intravenous administration at different time points and measured by HPLC. The pharmaco-kinetic parameters were calculated by DAS 2. 0 software. Results: The calibration plot of cucurbitacin IIa was linear over the range 0. 146-14. 060 μg · ml-1 . The range of method recovery was 99. 02%-104. 22% and that of extraction recovery was 84. 74%-86. 80%. The intra-and inter-day precision were both less than 5%. The stability met the requirements. The main pharmacokinetic pa-rameters were showed as follows:t1/2β(h):0.732 ±0.151, 0.681 ±0.055,0.667 ±0.064;Vd (L·kg-1):0.147 ±0.089, 0.131 ±0.095,0.153±0.047; Cl(L·h-1·kg-1): 0.287±0.031,0.304±0.063,0.318±0.029andAUC0→∞(mg·h·L-1):3. 646 ± 1. 124,4. 916 ± 1. 227,9. 385 ± 1. 419. Conclusion: The validated method is successfully applied in basic pharmacokinetic study in rat plasma after intravenous administration. The plasma concentration-time curves at three dosages are all fitted three-compart-ment model. Within the examined dose range, the pharmacokinetics of cucurbitacin IIa in rat is based on linear pharmacokinetics.

Twenty-eight children with laryngeal papilloma aged 10 months -3.5 yr weighing 8-15 kg received CO2 laser treatment under serf-retaining laryngoscope from May 2003 to May 2007. There were 17 patients without laryngeal obstruction, 7 patients with 1st degree laryngeal obstruction and 4 patients with 2rid or 3rd degree laryngeal obstruction. Different techniques of anesthesia were used for patients with different degrees of laryngeal obstruction. In patients without laryngeal obstruction anesthesia was induced with intramuscular ketamine 5 mg/kg. After the patients lost consciousness midazolam 0.1 mg/kg, ketamine 1-2 mg/kg or fentanyl 2 μg/kg was given iv. Tracheal intubation was facilitated with succinyl-cboline 1.5 mg/kg. In patients with 1st degree laryngeal obstruction, ketamine 5 mg/kg was given ira. The patients kept spontaneous breathing. Tracheal intubaiion was pedormed under topical anesthesia with 1% tetracaine. In patients with 2nd and 3rd degree laryngeal obstruction tracheal intubation was performed awake without any premedication under topical anesthesia with 1% tetracaine. The trachea was intubated with the tracheal tube 1 size smaller than the regular size. Anesthesia was maintained with propofol 3-5 mg·kg1·h-1 and intermittent iv boluses of ketamine 1-2 mg/kg and vecuronium 0.05-0. 1 mg/ kg. Dexamethasone 0.2-0.3 mg/kg was given iv at the end of operation. The patients were extubated when the patients regained consciousness and SpO2≥ 96% on air. In one patient with Ist degree laryngeal obstruction emergency tracheotomy was performed during induction of anesthesia. Anesthesia was otherwise smooth and recovery was uneventful.

Objective To discuss the clinical significance of fetal encephalic accumulated fluid revealed by prenatal ultrasonography.Methods Prenatal ultrasonography was performed on 8426 women at more than 20 weeks' gestation.Totally 150 women with fetal encephalic accumulated fluid more than 5 mm were included in this study.The changes of fetal encephalie accumulated fluid and the associated anomalies were observed regularly every 2 weeks until delivery.The live infants were followed up regularly.Results The incidence of fetal encephalic fluid was 1.8%,including 72 cases with fluid in the fetal anterior or posterior cornu of unilateral ventricle,46 cases with accumulated fluid in fetal posterior fossa,32 cases with fluid in more than 2 sites.Generally,the accumulated fluid in fetal encephalus was first diagnosed at 17-40 gestational weeks,with a median of(26?5)weeks.Most of them were found between 29-32 gestational weeks(63 cases,42.0%),and the maximum amount of accumulated fluid was also found between 29-32 weeks(70 cases,46.7%).Spontaneous regression of intracranial fluid could be seen in 111 fetuses (74.0%).The period of fluid regression ranged from 29 to 40 weeks of gestation,of which the average gestational week was(36?2)weeks.Additionally,the most frequent period of regression was in the first two thirds of the three trimesters of pregnancy.The incidence of defected infants was 3.8%,10.2% and 67.4%,respectively,when the amount of accumulated fluid was less than 10mm,10-14 mm and more than 15 mm.And the accumulated fluid in more than 2 sites was also a risk factor of defected fetuses,with an incidence of 60.0%.Conclusions Most cases could be diagnosed between 29-32 gestational weeks, and the maximum amount of accumulated fluid is also observed in this period.The more fluid in fetal encephalus,the more sites the fluid distributed in,the more defected fetuses or infants would be observed.So in cases of more than 15 mm of fluid,or accumulated fluid in more than 2 sites,anomalies should be observed extremely carefully.

Human resource,as the core resource of hospitals,plays a key role in maintaining the competitive advantage of the hospitals.From the perspective of system engineering,this paper closely combined the present situation of human resource management under the background of medical staff shortage with the systematic theory,and systematically analyzed the problems of medical staff shortage and human resource management in public hospitals on the basis of literature research and investigation.It constructedand analyzed the archetype of “growth upper limit” that the over load of medical staff in hibited their mental health,“growth and investment insufficiency” archetype of medical staff's human capital investment,and the “trifles” archetype of medical personnel shortage.As well,it put forward the problem-solving management strategy using the theory of systematic thinking.