Objective To investigate the effects and the possible mechanism of insulin like growth factor-1 ( IGF1 ) on proliferation and migration of human umbilical vein endothelial cells ( HUVEC) in high glucose. Methods Cultured HUVEC were divided into 5 groups( control group, high glucose group, hypertonic group, high glucose+IGF 1 group, high glucose+IGF1+ AZD5363 group) . The proliferation was detected by methyl thiazolyl tetrazolium ( MTT) , the migration was detected by transwellchamber. The mRNA expressions of serine/threonine kinase( Akt) and FoxO1 were detected by real-time PCR. The protein expressions of FoxO1/p-FoxO1 and Akt/p-Akt were detec-ted by immunohistochemisty. Results Compared with the control group, the rate of cell survival in high glucose group decreased significantly(P<0. 05), the transitional was decreased significantly(P<0. 05), the mRNA ex-pression of FoxO1 was increased significantly( P<0. 05 ) , the protein expressions of FoxO1/p-FoxO1 and Akt/p-Akt were increased. Compared with high glucose group, the cell survival rate and migration rate in high glucose+IGF1 group were increased significantly, the mRNA expression of FoxO1 was decreased significantly(P<0. 05), the protein expressions of FoxO1/p-FoxO1 and Akt/p-Akt were decreased. Compared with high glucose group, the cell survival rate and migration rate in high glucose+IGF1+AZD5363 group had no significant difference, the mR-NA expression of FoxO1 was decreased significantly ( P<0. 05 ) , the protein expressions of FoxO1/p-FoxO1 had no significant difference. The mRNA expression of Akt in five groups had no significant difference. Conclusion IGF1 can improve the proliferation and migration of endothelial cell in high glucose. It shows that IGF1 acts through Akt to promote FoxO1 phosphorylation.

Objective:To study the movement regularity of Ca~(2+) in tooth hard tissue.Methods:14 extracted intact caries-free teeth were cleaned and then immersed into artificial saliva in a divice with 3 chambers for enamel part,dentin part and cement part respectively.The concentration of Ca~(2+) in the chambers was measured with an ion meter,TECHNICON(AXON,USA),24 h after immersion of each tooth.Results:The Ca~(2+) concentration in tooth immersed fluid of enamel part was higher than that of dentin part(P

Objective To establish a stable and simple method of tracheal intubation in rodents and to establish various models that needs of endotracheal intubation .Method Sixty Kunming mice anesthetized by midazlam and ketamin, were intubated by 22 GA arterial puncture needle casing with optical fiber .Then connect the casing and ventilator and make sure the casing has been into the trachea .Result 60 mice were all successfully intubated by casing with optical fiber with no throat mucosa bleeding, edema.Glottis and trachea don’t present complications such as tracheal stenosis 7d later.Conclusion Fiber mediated intubation is a simple and useful method .It has a success rate with low incidence of complications .

Objective To develop a new method for rapid detection of E.Coli.with a new substrate Na p nitrophenyl ? D glucuronate (PNP Glucu Na). Method The test paper was immersed with of Na p nitrophenyl ? D glucuronate which was synthesized by us and another paper with culture medium and phorphate buffer.Colour change was observed to detect the E.coli. Results An E.coli concerntration of 4?10 7 took 0.5 hour, while a concentration of 4?10 0 took 12 hours. 138 strains of E.coli and 190 strains of other bacteria were examined . The sensitivity was 94.2% and the specificity was 92.6%. Conclusion This method is rapid, accurate, simple, and economical for detecting E.coli.

Objective To analyze the factors contributing to local recurrence following body gamma knife radiotherapy in patients with non-small cell lung cancer(NSCLC),and to explore a standard therapeutic scheme under the circumstance.Methods 332 patients with NSCLC received body gamma knife therapy and subsequent regular follow-up.Dose per fraction and total dosage used were dependent on disease condition,tumor location,tumor features and tumor size,etc.On the basis of patients' conditions and adverse effects,biological effective dose(BED) was 56-90Gy calculated with LQ model.Univariate analyses were performed including sex,age,Karnofsky performance score,clinical stage,pathological type,tumor differentiation degree,tumor size,tumor location,target volume delineation,dose per fraction,BED and chemotherapy scheme,etc.with X2 or t test.By selecting significant clinical factors in univariate analysis,multivariate analyses were performed with COX regression model.Results Of the 332 patients,local recurrence occurred in 22 cases during regular follow-up period,with average recurrence time of 10 months,and the local recurrence rate was 6.63%.The results of multivariate analysis showed that low BED,low Karnofsky score,old age,too small delineation for target volume range and central type of lung cancer were the factors related to local recurrence.Conclusions Low BED in body gamma knife radiotherapy is the significant factor of local recurrence for patients with NSCLC.BED in body gamma knife radiotherapy should be more than 80Gy for NSCLC patients who receive the radical treatment.

Objective To investigate the trend of omtibacterial resistance rate of Acinetobater baumannii in our hospital from Jan.2000 to Jun.2005,and for the guidance of rational use of antibacterials.Methods A.baumannii strain was isolated and tested by K-B method from clinical samples and antibiotic resistance was analyzed and studied retrospectively.Results There was an elevated tendency of the resistance rates to common antibacterial in A baumanii for past six years. The resistance rate to imipenem was the lowest (3.6%) and to amikacin, cefoperazone/sulbactam was 29.5%-77.4%.Conclusion The resistance rates to common the antibacterial in A.baumanii are high and the resistance pattern is wide. It is important to select antibiotics according to the antibiotics sensitivity in vitro.

The important role of nursing work environment has received much attention in the management of nursing workforce and the quality of health care services. This paper analyzed current studies on nursing work environment, and suggested that the government and hospital administrators pay more attention to the development of nursing workforce, adequate clinical nurse staffing levels and promoting healthy work environment for nurses.

AIM:This paper described a HPLC method.Paeoniflorin and puerarin in Rg soft-exact(Radix Puerariae lobatae,Redix Paeoniae alba,etc.) were simultaneously determined.METHODS:A simplified HPLC procedure was developed.A 4.6 mm?250 mm Alltima C_(18) column with a mobile phase consisting of NaH_2PO_4(20 Mm,pH 2.4)-Acetonitrile:Tetrahydrofuran(900:120:5) was used.The flow rate was 1.00 mL/min.It was detected at 320 nm.RESULTS:Paeoniflorin and puerarin were well separated.The average recoveries of paeoniflorin and puerarin were 98.10% and 101.2% respectively.CONCLUSION:The result shows that this method is convenient,rapid and accurate.

Objective To analyze the psychological state of male nursing students in clinical practice.Method The method of qualitative research was used to interview 20 male nursing students to analyze data and come out with a theme.Results The psychological state of the male nursing students included the following three aspects:intense psychological pressure,unstable mood, low self-esteem and anxiety and depression.Conclusions Establishing nursing communication course using situational simulation and role play and inviting psychological consultants to have face-to-face communication with them for the improvement of mental conditions are good for them to complete their courses and find a nursing position in the future market?

Objective:To explore the effect of spinal interleutkin-33 (IL-33) on radicular pain in rats modeling non-compressive lumbar disc herniation.Methods:A total of 80 male Sprague-Dawley rats were randomly divided into a sham operation group, a model group, a lentivirus negative control group, a low-dose IL-33 recombinant lentivirus group and a high-dose IL-33 group, each of 16. Non-compressive lumbar disc herniation was successfully induced in all except the rats in the sham operation group. Two days later, the model group was injected intrathecally with 10μl of enhanced infection solution. The lentivirus control group received 10μl of negative lentivirus, the low-dose IL-33 recombinant lentivirus group received 5μl of IL-33 recombinant lentivirus and the high-dose IL-33 recombinant lentivirus group received 10μl of IL-33 recombinant lentivirus. The 50% paw withdrawal threshold (50% PWT) was measured one day before the modeling and on the 1 st, 3 rd, 5 th, 7 th, 9 th, 11 th, 13 th, 15 th, 17 th, 19 th, and 21 st day afterward. On the 12 th day the expressions of IL-33 protein and mRNA were evaluated. Results:The average expression of IL-33 protein and mRNA in the model and the lentivirus negative control group increased significantly after the modelling compared with the sham group, while expression in the low- and high-dose IL-33 recombinant lentivirus groups was significantly lower than in the lentivirus negative control group. Compared with one day before the modelling, average 50% PWTs on the affected side decreased significantly in all of the modelling groups. From the 9 th to the 21 st day significantly increased 50% PWTs were observed on the affected side in the low-dose and high-dose IL-33 recombinant lentivirus groups compared with the other two modelling groups. Immunostaining showed significant increase in the expression of IL-33 in the dorsal horn of the spinal cord in the model group, compared with the sham operation group. Significant decrease in the average expression of IL-33 in the spinal dorsal horns was observed in the low-dose and high-dose IL-33 recombinant lentivirus groups. Conclusions:Intervertebral disk herniation may increase the expression of IL-33 in the spinal cord, and may cause radicular pain.