Objective To establish a method of isolating and purifying islets from Wistar rat, and to evaluate the biological characters of the isolated and purified islets. Methods The pancreases were surgically removed from adult Wistar rats, carefully minced with scissors as small as possible prior to incubation in 0.9 mg/ml collagenase (Sigma, type Ⅴ) for 10~17min at 37℃. The digested tissue was filtered through a 60 apertures/cm~2 metal sieve and washed with 10% fetal bovine sera (FBS) in Hank’s solution. Purification was performed using Dextran discontinuous density gradient centrifugation to separate the contents of the postcollagenase pellets. Islet samples were stained with DTZ staining for identification. The viability of the purified islet was determined by acridine orange/propidium iodide (AO/PI) double staining. The in vitro function was assayed by different densities of glucose incubating islets for 45min, respectively. Insulin secretion in the supernatant was assayed by radioimmunoassay. Islets were transplanted under the kidney capsule into recipient SD rats that had been rendered diabetic by injecting streptozotocin 50mg/kg, so as to evaluate the in vivo function of islets. Results The islets were recovered between the 11% and 22% Dextran layers, and between the 11% and 1640 layers. The average number of isolated islets was 2181?14 per rat pancreas. After a discontinuous Dextran density gradient purification, about 1826?24 islets were obtained from per rat pancreas, with an average purity over 95%. Islets showed good response to glucose and high efficiency to invert hyperglycemia 7-10d after transplantation. Conclusion These results showed that the digestion methods and purification procedure which we have developed could provide islets from rats for transplantation studies. The biological characters of islets harvested by our method were very well.

Objective To examine the health-promoting lifestyles of clinical nurses and analyze the relationship between the scores and their socio-demographic characteristics.Methods The researeh design was a cross-sectional descriptive study.The study population was 710 clinical nurses who were working at a class A tertiary teaching hospitals in a certain province.The research instruments included the healthpromoting lifestyle profile and socio-demographic characteristics of objects.Results The research findings showed that the nurses had a relatively poor health-promoting lifestyles with the mean total score at (81.41±21.71); within 52 items,the mean score of each item was (1.57:±0.42).Significant differences were found among sub-dimensions of health-promoting lifestyle profile,while nurses performed best in the interpersonal relations,subsequently followed by self realization,balanced diet,pressure management and health responsibility,but worst in exercise.There was also a statistical difference in the total score of health-promoting lifestyle among nurses who had different characteristics including marital status,education level,professional tifle,income,and taking the night shift.Conclusions The research results should raise the concern of nursing managers and clinical nurses to rectify the current status of relatively poor health- promoting lifestyles among nurses.

Objective Demonstrate the implication of Emergency Severity Index (ESI) in pediatric emergency room (ER). Method ESI categories of 21 904 visitors to ER of Beijing Children's Hospital's international department were reviewed. SPSS statistic software was employed to compare the results of ESI categories by doctors and nurses separately using x2 analysis. Results There are highly consistency in ESI categories by doctors and nurses. ESI is an easy-learned and effective triage method. Conclusions ESI is capable in pediatric emergency room regarding recognizing serious cases and saving clinical resources.

Objective Construction of a predicting model of uncertainty in illness based on Mishel's theories of uncertainty in illness in a sample of the postoperative patients with digestive system tumors undergoing chemotherapy.Methods By convenient sampling method,MUIS-A,MSAS,SSRS were used to evaluate 484 postoperative patients with digestive system cancer during chemotherapy period,and then AMOS 17.0 software was used to perform analysis.Results The score of uncertainty in illness of postoperative patients with the digestive system cancer undergoing chemotherapy was in the medium level (89.86+11.84) points; Structure provider (social support,economic income) could not only reduce the uncertainty directly,but also had an indirect effect on the uncertainty by stimuli frame (symptoms pattern,event familiarity).Conclusions Structure equation model can be applied to the uncertainty in illness model construction,so as to help medical staff manage uncertainty in illness pertinently.

Objective In order to evaluate the nutritional effect of early enteral nutrition in patients of Chinese domestic gastric cancer surgery,using evidence-based medicine methods,and supply evidence for clinical nutrition intervention.Methods CBM,Chinese academic Journals,Wanfang database and VIP Information Resource System were searched from January 2000 to March 2013 to collect the published clinical randomized controlled trials literatures of nutrition support in patients of Chinese domestic gastric cancer surgery according to inclusion and exclusion criteria of literature,using the Cochrane System Evaluation Handbook independent,double-blind principle of the literature methodology quality evaluation.Finally Meta analysis was conducted by using RevMan5.2 software.Results 14 articles were enrolled in the study,Meta analysis results showed that:early enteral nutrition comparing with parenteral nutrition in postoperative gastric cancer patients:the WMD of serum albumin was 1.55,95％ CI (0.81,2.29); the WMD of serum transferrin was 0.34,95％CI (0.30,0.38);the WMD of postoperative anal exhaust time was-20.66,95％CI (-23.91,-17.40).Conclusions Early enteral nutrition is better than the parenteral nutrition,which can restore adequate serum protein source for patients,and can recover the gastrointestinal digestion and absorption function of itself earlier,which is worthy of clinical promotion.

Objective To investigate the empathy of clinical nurses and analyze the influencing fac-tors.Methods Totally 465 clinical nurses were investigated with demographic data and interpersonal Reactivity Index-C (IRI-C).Results Mean score of the empathy of clinical nurses was (53.77±8.99)points with a medium level.Age,working years,whether or not to engage in management work were the main predictors of empathy.There were no significant differences in nurses with different genders,marital status,professional titles,education degree,hospital grades.Conclusions The length of the working years is one of the important factors of nursing unit.Common clinical nurses should be involved in the nursing manage-ment.Clinical nurses should pay attention to the study and discussion about empathy knowledge in order to improve their level of empathy.

Objective To analyze the structure of leadership questionnaire for nursing managers.Methods A total of 184 head nurses in Anhui were investigated with the leadership questionnaire for nursing managers.SPSS13.0 and AMOS17.0 software were used to test the reliability and validity.Results The correlations between the items and total scale ranged from 0.431-0.687(P＜0.05 or P＜0.01) and the Cronbach' sα was 0.841.Single factor analysis results indicated that all factor loadings to their items were 0.542-0.782(P＜0.05).The multiple factor analysis results showed that first-order factors model and second-order factors model of leadership for nursing managers fitted well.Conclusion The leadership questionnaire for nursing managers is proved to have good psychometric characteristics and can be used to assess the leadership of nursing managers.

Objective To investigate the joint action mechanism of structural empowerment, psychological empowerment and job satisfaction of nursing staff in China,and probe into a joint action mechanism of such structure and empowerment on their satisfaction.Methods Totally 300 nurse specialists from secondary and tertiary hospitals in Anhui province were selected in a convenience sampling for investigation,by means of a general information questionnaire,Minnesota Satisfaction Questionnaire,Conditions of Work Effectiveness Questionnaires-Ⅱ and Psychological Empowerment Scale.Results The nurses′job satisfaction were positively associated with both their total scoring and individual dimensions of the structural empowerment and psychological empowerment.As shown in the structural equation modeling,the model (the pathway from structural empowerment to nurses′ job satisfaction and the mediating effect of psychological empowerment are significant)fitted the data well. Conclusions Nursing managers can use the empowerment theory to fully leverage their management advantages,creating a desirable environment for the nursing staff at large.

Hydroxyapatite (HAP) formation on the surface of the degradable polyamides implant by a coating technology was studied. A suspension of HAP-glutin-acetic acid was prepared and brushed on the surface of the implant at room temperature. Scanning electron microscopy (SEM), X-ray diffractometry (XRD) and Fourier transform infrared spectroscopy (FT-IR) were employed to study the composition and the microstructure of the coating. The results obtained indicate that the main composition of coating is crystal HAP, its structural formula is Ca10(PO4)6(OH)2. So the coating has bioactivity. The coating has also small pores, which can stimulate bone regrowth and adsorption of other bioactive materials or mediine. This technology is an effective method to improve medical performance of the polyamides implant.
Bone Substitutes ; Coated Materials, Biocompatible ; chemical synthesis ; chemistry ; Durapatite ; chemical synthesis ; chemistry ; Nylons ; Prostheses and Implants

Objective To explore the pain beliefs and perceptions held by patients with digestive system cancer.Methods 10 patients with digestive system cancer were interviewed for exploration of their pain beliefs and perceptions.The data were collected using in-depth interview and analyzed with category approach.Results The beliefs and perceptions held by patients with digestive system cancer were presented as:negative pain beliefs,negative emotional perceptions,view social support as important resources.Conclusions The pain beliefs and perceptions in digestive system cancer pain patients are negative.Clinical medical workers should pay attention to the role of beliefs in pain management,and help patients build positive pain beliefs through utilizing social support resources effectively.