ObjectiveTo discuss the effect of preoperative psychological communication on psychological state of elderly patients before destined operation.Methods136 cases of elderly patients underwent elective operation were divided into the observation group and the control group with 68 cases in each group,the control group was given routine nursing of general surgery,the observation group received targeted psychological communication based upon routine nursing for consecutive 3 days before surgery.The psychological state such as anxiety,depression and fear was compared between two groups.ResultsThe anxiety,depression and fear in the observation group was significantly improved compared with the control group.ConclusionsPreoperative appropriate and targeted psychological communication can alleviate the anxiety,depression and fear of the elderly patients with elective operation,and contribute to the smooth operation.

BACKGROUND: Biological function of leukocyte-associated immunoglobulin like-receptor 1 (LAIR 1) has clearly researched in China and abroad, but the in vivo biological function of LAIR is poorly understood. OBJECTIVE: To establish LAIR-2 (CD306) eukaryotic expression vectors and to purify and identify the fusion protein. DESIGN, TIME AND SETTING: A single sample observation experiment was performed at the Fourth Military Medical University of Chinese PLA between June 2007 and June 2008.MATERIALS: plg/3c vector was offered by Oxford University, pcDNA3.1 vector was provided by Meyaard doctor. Chinese hamster ovary (CHO) cell lines were preserved by the Department of Immunology, Fourth Military Medical University of Chinese PLA.METHODS: Two eukaryotic expression vectors plg/3c-LAIR-2 and pcDNA3.1-LAIR-2 were constructed and were transfected into CHO cells. The binding activities of LAIR-2 fusion protein to LAIR-2 mAbs were identified by Western blot, immunocytochemistry and flow cytometry assay.MAIN OUTCOME MEASURES: The construction of stably transfected cell lines, and the purification and identification of fusion protein. The activity of LAIR 2 protein combined to corresponding monoclonal antibody.RESULTS: Eukaryotic expression vectors were constructed and trasnsfected into CHO cells successfully. Two cells lines CHO/LAIR-2-Fc and CHO/LAIR-2 that steadily expressed LAIR-2-Fc fusion protein and LAIR-2 protein were established. Western blot assay showed that LAIR-2 protein could bind specially to LAIR-2 mAb 1A7, 3H12 and 4A9. Immunocytochemistry and flow cytometry assay demonstrated that 3H12 and 4A9 could bind to LAIR-2 expressed in the transfected CHO cells. CONCLUSION: Two ceils lines CHO/LAIR-2-Fc and CHO/LAIR-2 were successfully constructed, which can transfected to CHO cells. The eukaryotic expressed LAIR-2 protein has good binding activity to LAIR-2 mAbs.

Ninety elderly patients with coronary heart disease were randomly divided into 2 groups:in study group (n = 45) the cognitive-behavioral intervention as well as conventional medical treatment were performed and in control group ( n = 45 ) only conventional treatment was given. Short Form-36 ( SF-36),symptom checklist 90(SCL-90), Hamilton anxiety scale( HAMA), Hamilton depression scale( HAMD)were evaluated before and after intervention, the serum total cholesterol (TC), triglyceride (TG)and body mass index (BMI)were measured, the smoking and drinking behaviors were recorded. After 6-month of intervention the smoking [(0. 6 ± 0. 2)cigarettes/d] and drinking [(10. 1 ± 2. 3)g/d] behaviors, the scores of SF-36 (85 ± 16), SCL-90 (104 ±4), HAMA (10 ±4) and HAMD (12 ±3), the systolic blood pressure [( 123 ± 11 ) mm Hg ( 1 mm Hg = 0. 133 kPa)], diastolic blood pressure [(77 ± 5 ) mm Hg], the fasting blood glucose [(4. 2 ± 2. 6 ) mmol/L] and BMI ( 22.5 ± 0. 5 ) in study group were significantly improved compared to control group ( P ＜ 0. 01 ). The results indicate that cognitive-behavioral intervention can improve the mental state and quality of life in elderly patients with coronary heart disease.

Objective To investigate the expressions of interleukin-1β(IL-1β), interleukin-6(IL-6) and tumor necrosis factor alpha(TNF-α) in cartilage of children with Kashin-Beck disease(KBD) in order to provide a possible mechanism of the disease. Methods Articular cartilage tissues of 5 KBD children(KBD group) were selected from KBD children autopsy samples keeping in Institute of Endemic Diseases, Medical School of Xi’an Jiaotong University; articular cartilage tissues of 5 normal children ( control group ) were selected from non-KBD areas of Shaanxi Province, three cases were from accident death children, two cases were the samples of congential malformation of six finger. Expressions of IL-1β, IL-6 and TNF-α in the cartilage were detected using immunohistochemistry; the cells of articular cartilage were divided into three areas (superficial zone, middle zone and deep zone) to analyze the expressions of IL-1β, IL-6 and TNF-α. Results The expressions of IL-1β in superficial zone , middle zone and deep zone of articular cartilage of KBD group (63.50 ± 7.19, 54.75 ± 5.50, 66.20 ± 9.91) were significantly higher than those of control group(5.75 ± 1.26, 0.00 ± 0.00, 0.00 ± 0.00, all P<0.05). The expression of IL-6 in superficial zone of articular cartilage in KBD group(55.25 ± 6.24) was significantly higher than that of control group(0.00 ± 0.00, P<0.05). The expressions of TNF-αin all zone of articular cartilage of KBD group(33.25 ± 6.50, 3.75 ± 0.96, 29.80 ± 1.92) were significantly higher than those of control group (3.74 ± 0.82, 0.00 ± 0.00, 0.00 ± 0.00, all P < 0.05). Conclusion The levels of IL-1β, IL-6 and TNF-α are up-regulated in articular cartilage of KBD children, suggesting that cytokines may play an important role in matrix degradation in KBD children cartilage.

Objective To study the relationship of soluble LAIR (sCD305 and CD3060) expression in recipient serum with cytomegalovirus (CMV) pneumonitis after renal transplantation. Methods Nineteen serum specimens from recipients were divided into CMV pneumonitis group (n=10) and control group (n=9). Then the concentrations of sCD305 and CD3060 were quantitated with sandwich ELISA. The data were analyzed by using student t test. Results sCD305 was skewness distributed in both 2 groups, was 0.000-3.039 μg/L in CMV pneumonitis group and 0.000-8.375 μg/L in con-trol group. CD3060 was skewness distributed in CMV pneumonitis group and the concentration was 0.000-0.017μg/L. CD3060 was mormally distributed in control group and the concentration was 0.046±0.035 μg/L. There was significant difference of CD3060 (P=0.000) concentrations and no sig-nificant difference of sCD305(P=0.316) concentrations in 2 groups, respectively. Conclusions The concentration of CD3060 is low in CMV pneumonitis patients. The combination of CMV PP65 antigen detection and CD3060 detection is helpful for the early and precise diagnosis of CMV pneumonitis in renal transplantation patients.

BACKGROUND:Cytotoxic T lymphocyte-associated antigen 4 is a newly discovered costimulatory molecule. It has been studied more in tumor and autoimmune diseases, less in the field of kidney transplantation.
OBJECTIVE:To explore the role of cytotoxic T lymphocyte-associated antigen 4 in acute rejection after renal transplantation.
METHODS:Fifty patients undergoing renal transplantation were divided into acute rejection group (20 cases) and stable graft function group (30 cases). Another 30 healthy persons served as control group. Blood samples were extracted from the peripheral blood. Cytotoxic T lymphocyte-associated antigen 4 was detected by enzyme linked immunosorbent assay and flow cytometry.
RESULTS AND CONCLUSION:The expression of cytotoxic T lymphocyte-associated antigen 4 in the serum showed significant differences in the acute rejection group, stable graft function group and healthy control group (F=70.008 1, P=0.000 0), but showed no difference in peripheral blood lymphocytes of three groups (F=1.865 6, P=0.161 7). Compared with the healthy control group, the expression levels of cytotoxic T lymphocyte-associated antigen 4 in peripheral blood lymphocytes of acute rejection group and stable graft function group were significantly decreased (P=0.000 0). In addition, the acute rejection group had a lower cytotoxic T lymphocyte-associated antigen 4 expression than the stable graft function group (P=0.000 0). In renal transplant rejection, the expression of cytotoxic T lymphocyte-associated antigen 4 in serum was reduced, showing some correlation with acute rejection after renal transplnatation. Cytotoxic T lymphocyte-associated antigen 4 might be involved in the rejection.

Objective To investigate the feasibility of using contrast-enhanced T1WI radiomics in predicting the pathological grade in rectal adenocarcinoma.Methods The MRI and pathological data of 127 patients with rectal adenocarcinoma were analyzed retrospectively.ITK-SNAP software was used to manually draw region of interest(ROI)in rectal cancer on axial T,WI enhanced images.The radiomics features were extracted by the Pyradiomics software from ROI.The task was divided into two parts:task 1("high & non-high"group)predicted the high-differentiation and moderate/low-differentiation of the tumor;task 2("moderate & low"group)predicted the tumor's moderate-differentiation and low-differentiation in"non-high"group.Maximum relevance and minimum redundancy(mRMR)method was used to screen features.The five methods including least absolute shrinkage and selection operator(LASSO),logistic regression(LR),naive Bayes(NB),random forest(RF),and support vector machine(SVM)were used to build the models,and the efficiency of each model was evaluated and compared.Results In task 1,the area under the curve(AUC)of five methods were 0.86,0.90,0.59,1.00,0.99 in the training cohort and 0.71,0.62,0.53,0.67,0.64 in the testing cohort.In task 2,the AUC of five methods in the training cohort were 0.93,0.85,0.67,0.92,0.89,and in the testing cohort were 0.86,0.80,0.50,0.78,0.71.The models constructed by LASSO in both tasks were the dominant models,the AUC of the fusion model in the testing cohort which combined with age,gender and the dominant Radiomics score(Radscore)was 0.80[95％confidence interval(CI)0.63-0.96]in task 1,and the accuracy,sensitivity and specificity were 78.94％,77.78％,and 79.31％respectively.They were 0.89(95％CI 0.74-1.00),90.00％,95.65％,and 71.43％,respectively in task 2.The calibration curves showed that the fusion models had a good goodness of fit.Conclusion Based on the establishment of two dichotomous models,the radiomics based on the contrast-enhanced T1 WI is feasible in predicting the high,moderate and low differentiation degree of rectal adenocarcinoma.

OBJECTIVETo prepare purified and concentrated coltivirus high titer antigen in order to further detect antibodies against coltivirus in serum sample of patients.

METHODSThe coltivirus in C6/36 cells was cultured and harvested at different time, and the titer was titrated. The virus was purified and concentrated by polyethylene glycol (PEG), and stored at -20 degrees and 4 degrees, with and without glycerol, respectively, then the titer of coltivirus antigen was tested by indirect ELISA. By using the antigen, coltivirus antibodies in serum samples from both suspected Japanese encephalitis (JE) and viral encephalitis (VE) patients were detected.

RESULTSThe highest titer of coltivirus was found at 3-4 weeks of culturing. The antigen titer could be maintained at least for 6 months, especially antigen with glycerol either at 4 degrees or at -30 degrees even for two years. Totally 1141 serum samples from patients diagnosed clinically as JE and VE were tested. The results showed that 130 samples were coltivirus IgM antibody positive and the average positive rate was 11.4% (130/1141). Among 41 samples of paired-serum from patients in Guangzhou Children's Hospital, 9 samples were positive, the positive rate was 22.0% (9/41) in which 5 samples were diagnosed clinically as VE.

CONCLUSIONSStable and purified coltivirus antigen was obtained in order to test coltivirus antibodies as well as development of kits. Coltivirus probably can cause summer-autumn encephalitis in China.

Antibodies, Viral ; blood ; Antigens, Viral ; isolation & purification ; Cell Line ; Coltivirus ; immunology ; Cryopreservation ; methods ; Enzyme-Linked Immunosorbent Assay ; Humans ; Reoviridae Infections ; blood

Objective:To detect the expression of ALG3 in human bladder cancer and analyze its clinical significance.Methods:Bioinformatics was conducted to analyze the mRNA level of ALG3 in bladder cancer tissues and normal tissues, and to analyze the relationship between its expression and the survival rate of bladder cancer patients. The clinical and pathological data of 87 patients with bladder cancer who underwent surgical treatment were retrospectively analyzed. Immunohistochemical method was used to detect the expression level of ALG3 protein in bladder cancer tissues and healthy tissues adjacent to the cancer, and to analyze its relationship with clinicopathological characteristics of bladder cancer patients.Results:The results of bioinformatics analysis showed that ALG3 mRNA was highly expressed in bladder cancer tissues, and was significantly correlated with the overall survival rate and disease-free survival rate of patients. Immunohistochemical results showed that ALG3 was mainly localized in the cytoplasm and was highly expressed in bladder cancer tissues, but low or no expression in healthy tissues adjacent to the cancer. The high expression of ALG3 in bladder cancer tumor tissue was related to tumor stage and tumor recurrence (all P<0.05), but not related to age, gender, tumor grade and lymph node metastasis (all P>0.05). Conclusions:ALG3 plays an important role in the occurrence and development of bladder cancer, and it is expected to become an important therapeutic target and prognostic marker for bladder cancer.

Objective:To detect the expression of CCNB2 in human renal clear cell carcinoma and analyze its clinical significance.Methods:Bioinformatics was conducted to analyze the mRNA level of CCNB2 in renal clear cell carcinoma tissues and normal tissues, and to analyze the relationship between its expression and the survival rate of renal clear cell carcinoma patients. The clinical and pathological data of 98 patients with renal clear cell carcinoma who underwent surgical treatment were retrospectively analyzed. Immunohistochemical method was used to detect the expression level of CCNB2 protein in renal clear cell carcinoma tissues and healthy tissues adjacent to the cancer, and to analyze its relationship with clinicopathological characteristics of renal clear cell carcinoma patients.Results:The results of bioinformatics analysis showed that CCNB2 mRNA was highly expressed in renal clear cell carcinoma tissues, and was significantly correlated with the overall survival rate and disease-free survival rate of patients. Immunohistochemical results showed that CCNB2 was highly expressed in renal clear cell carcinoma tissues, but low or no expression in healthy tissues adjacent to the cancer. The high expression of CCNB2 in renal clear cell carcinoma tumor tissue was related to tumor stage and tumor size (all P<0.05), but not related to age, gender and tumor grade (all P>0.05). Conclusions:CCNB2 plays an important role in the occurrence and development of renal clear cell carcinoma, and it is expected to become an important therapeutic target and prognostic marker for renal clear cell carcinoma.