Objective To compare the long term efficacy of total hip arthroplasty and half hip arthroplasty in the treatment of elderly patients with femoral neck fracture .Methods 70 elderly patients with femoral neck fracture who needed hip replacement were randomly divided into the observation group and control group ,35 cases in each group.The observation group was given total hip arthroplasty ,while the control group was given half hip arthroplasty . The postoperative long term effect was compared between the two groups .Results The overall incidence rate of post-operative infection of the observation group was higher than the control group ,the postoperative revision rate of the ob-servation group was lower than the control group ,but the differences between the two groups were not statistically sig-nificant(P>0.05).The overall incidence rate of postoperative chronic pain in the control group was 22.86%,which was higher than 2.28%of the observation group,the difference was statistically significant (χ2 =5.130,P<0.05). The postoperative Harris score of the observation group was (93.25 ±4.51)points,which was significantly higher than (82.76 ±3.82)points of the control group,the difference was statistically significant (t=6.973,P<0.05).The ex-cellent and good rate of the observation group was 91.43%,which was significantly higher than 71.43%of the control group,the difference was statistically significant (χ2 =6.492,P<0.05).Conclusion Total hip arthroplasty in the treatment of femoral neck fracture can reduce the incidence of postoperative pain ,improve hip function of the patients , and its long-term effect is better than single hip replacement surgery ,which should be widely applied in clinical .

Objective To investigate the correlation between the source of Schistosoma japonicum infections and sociological factors among mobile populations in Haining City, so as to provide insights into the management of schistosomiasis among mobile populations in Haining City. Methods A total of 12 villages were randomly sampled from 8 townships and 4 subdistricts in Haining City. The mobile populations from schistosomiasis-endemic areas were detected for S. japonicum infections using serological tests. In addition, the awareness of schistosomiasis prevention and control knowledge was investigated using a questionnaire survey. Results A total of 1 019 mobile populations were investigated in 12 villages from Haining City, and 23 sero-positives were found, with a positive rate of 2.26%; however, no egg-positives were detected. Logistic regression analysis showed that the mobile populations with original occupations of aquaculture and husbandry were more likely to be sero-positive. The mobile populations had an overall low awareness rate of schistosomiasis prevention and control knowledge, and a higher rate was seen in sero-positive than in sero-negatives. Conclusions The mobile populations with original occupations of aquaculture and husbandry were the key for the surveillance of source of S. japonicum infections. The health education should be intensified to improve the awareness of schistosomiasis prevention and control knowledge among mobile populations.

The objective of this study was to construct an improved thioredoxin fusion protein expression system, and express the cathelicidin-derived peptide, Lf-CATH2. The improved fusion vector Lf-CATH2-pET32α(-TS) was successfully constructed by firstly deleting the thrombin site and S tag from the pET-32α vector, then inserting the Lf-CATH2 plus a thrombin site instead. Afterwards, Lf-CATH2 was expressed in Escherichia coli as fusion protein. After the cleavage by thrombin, Lf-CATH2 was released and subsequently separated using affinity chromatography. The antimicrobial activity of purified Lf-CATH2 was also examined. The improved expression vector significantly increased enzyme cleavage efficiency by 37%, and Lf-CATH2 could be expressed in high yield and maintain the biological activity. This novel thioredoxin fusion protein expression system enables a quick production of high-yield bioactive cationic peptides like cathelicidins.
Cathelicidins ; biosynthesis ; Chromatography, Affinity ; Escherichia coli ; Genetic Vectors ; Recombinant Fusion Proteins ; biosynthesis ; Thioredoxins ; genetics

Objective To understand the influence of personal feature on nurses' professional identity.Methods Nurses of 6 military hospitals were assessed and analyzed by general data questionnaire,Nursing Professional Identity Scale.Results Nurses' professional identity in military hospital was on the moderate level.Nursing age,department,monthly income,position,gender entered into the regression equation of nurses' occupation,which affected positively nursing professional identity.Conclusions The military nursing managers should raise the income of nurses appropriately,especially pay attention to training of professional identity of seniority nurses and local recruitment nurses,and enhance master concept in order to increase their understanding and recognition of their occupation.

Objective Preparing platelet rich gel through two-times centrifugal technique and co-culturing chondrocytes with PRG, then observing the proliferation and gene expression of chondrocytes, in order to provide a favorable way to prepare tissue engineering cartilage. Methods Centrifugating venous blood of rabbit through two-times centrifugal technique to obtain platelet rich plasma( PRP) ,then detecting the concentration of various growth factor in PRP. Admixing PRP with chondrocytes of rabbit and activating them with activator. After co-culti-vation,the proliferation of chondrocytes through MTT method and expression of ACAN,CollagenⅡand SOX-9 through realtime-PCR were ob-served,and compared with common cultured chondrocytes. Results The concentrations of PDGF-AB,TGF-β1,IGF-1 and VEGF in PRG were significantly higher than those in blood(P<0. 05). After co-cultivation, the proliferation rate of chondrocytes and the expression of ACAN,Collagen Ⅱ and SOX-9 were significantly higher than that of common cultured chondrocytes(P<0. 05). Conclusion Co-culturing chondrocytes with PRG is able to promote the proliferation and gene expression of chondrocytes. We considered that it is a excellent method to construct tissue engineering cartilage.

Objective To investigate the protective effects of ulinastatn on the lungs in patients with lung cancer undergoing lobectomy. Methods Forty ASA Ⅱ or Ⅲ patients with stage Ⅲ lung cancer, aged 50-64 yr weighing 53-70 kg undergoing lobectomy were randomly divided into 2 groups ( n = 20 each): control group (group C) and ulinastatin group (group U). In group U ulinastatin 10 000 U/kg in 20 ml normal saline was infused iv over 30 min immediately after induction of anesthesia. The patients were premedicated with diazepam 10 mg and scopolamine 0.3 mg im. Anesthesia was induced with midazolam 0.05 mg/kg, fentanyl 4 μg/kg, TCI of propofol (Cp 4 μg/ml) and vecuronium 0.12 mg/kg and maintained with TCI of propofol (Cp 2-3 μg/ml) and intermittent iv boluses of fentanyl and vecuronium. The patients were intubated with double-lumen tube. Correct position of the tube was checked with fiberoptic bronchoscope. One-lung ventilation (OLV) was performed (VT 6-8 ml/kg, RR 10-16 bpm, I:R 1:2, FiO2 100% ). PETCO2 was maintained at 35-45 mm Hg. Arterial blood samples were taken before anesthesia (T0, baseline), at 0.5 h and 1 h of OLV (T1, T2 ) and 4 h and 24 h after operation (T3, T4 )for blood gas analysis and determination of plasma TNF-α, IL-6 and IL-10 concentrations. Respiratory index (RI)was calculated. (RI= PA-a O2 /PaO2 ).Results Compared with the baseline values at To, plasma TNF-α and IL-6 concentrations and RI at T1-4 and plasma IL-10 concentrations at T1-3 were all significantly increased in group C,while in group U plasma TNF-α and IL-6 concentrations at T2,3 and plasma IL-10 concentrations and RI at T1-4 were all significantly increased ( P ＜ 0.05 ). Plasma TNF-α and IL-6 concentrations and RI were significantly lower while plasma IL-10 concentration was significantly higher in group U than in group C (P ＜ 0.05).Conclusion Ulinastatin 10 000 U/kg can effectively protect the lungs in patients with lung cancer undergoing lobectomy by attenuating systemic inflammatory response.

Objective To analyze tumor-free survival rate and recurrence rate of radiofrequency ablation (RFA) versus surgical resection(SR) for small hepatocellular carcinoma. Methods Clinical data of 64 patients (hospitalized from October 2008 to October 2010) with small hepatocellular carcinoma(≤ 5 cm) in our hospital were retrospectively analyzed. 29 cases among them underwent RFA, and the 35 cases underwent SR, then they were further divided into two groups according to the tumor diameter (≤ 3 cm vs. ≤ 3 ~ 5 cm). The rate of complete elimination of tumor , complications , recurrence and metastasis , and survival rate out of tumor-free at year 1, 3, and 5 were compared. Accumulated survival rate of the two groups at year 1, 3, and 5 were compared. Results The rate of complete elimination of tumor, and complications in the RFA group were 89.66% and 6.9% respectively, and no statistically significant difference was found compared with the SR group (100% and 14.29%, respectively) . The rate of recurrence and metastasis and 1, 3, 5- year tumor-free rate in RFA and SR group with tumor diameter < 3 cm were 60.00%, 80.00%, 40.00%, 30.00% and 38.46%, 84.62%, 61.54%, 38.46% (P > 0.05) respectively, and for the cases with tumor diameter in 3 ~ 5 cm, these data showed no significant difference between groups (P > 0.05). No significant difference were found in tumor-free survival rate within groups, while rate of recurrence and metastasis was significantly lower in the < 3 cm group (P < 0.05). The accumulated survival rate in RFA at year 1, 3 and 5 were 100%, 62.07%, 37.93% and 100%, 62.86%, 48.57% in SR group (P > 0.05). Conclusions RFA and SR had similar medium and long term clinical effect for small hepatocellular carcinoma with tumor diameter≤ 5 cm. The larger in size of the tumor, the higher rate of recurrence and metastasis. RFA is less invasive and can avoid complications and should be considered an eligible treatment for small hepatocellular carcinoma with tumor diameter ≤ 5 cm.

Objective To explore methylprednisolone and conventional dose prednisone treatment for hematological damage in systemic lupus erythematosus(SLE) in the near future response. Methods Hemocytopenia in 147 patients with SLE were treated by intravenous injecting methylprednisolone and conventional dose prednisone and therapy response were observed in the tenth day after treatment. Results The responses were obtained in methylprednisolone and in conventional dose prednisone increased percentage of Hb were 34.8% and 14.0%,of WBC were 76.7% and 63.0%,of Pt were 66.7% and 27.3% in two group respectively. In comparison of values of Hb,WBC,and Pt before treatment with those after treatment showed significant difference in two groups(P

OBJECTIVETo evaluate the quality status of rubella virus IgM diagnostic kits by national supervising sampling.

METHODSUsing legal inspection combining with exploratory study, the positive and negative coincidence rate, detection limit and repeatability of kits were verified.

RESULTSThe results showed that 15 of 16 batches of kits were qualified using legal inspection, and the passing rate was 93.8%. The unqualified item was negative coincidence rate. In exploratory study, only 11 batches (68.8%) complied with industry standard. The unqualified items were negative coincidence rate, detection limit and repeatability.

CONCLUSIONAt present, rubella virus IgM diagnostic Kits have some quality problems in the market. It is recommended that we adopt industry standard and national reference panel in the registration inspection for the future, which will prompt enterprises to improve quality.