Dignity is the idea that a being has the innate right to be valued, respected, and treated ethically. It reflects the value of life.Dignity therapymainly discusses thedignity during the period of death and dying.It involves symptom control, body integrity, au-tonomy, privacy boundaries, respect, and proper handling of personal affairs and death in peace. Dignity therapy is a unique, individu-alized, and brief psychotherapy that was developed for the purpose of relieving distress, enhancing end-of-life experience, reducing psychological and mental burden, and improving the quality of life for dying patients.

Mesenchymal stem cells (MSCs) have been found to home to tissues/organs with irflammation,the sites of growing tumors,as well as to participate in the formation of the tumor micro-environment,suggesting that MSCs play important roles in tumor growth and metastasis.To study the roles and mechanisms of MSCs in tumor growth and metastasis will provide new insights into tumorigenesis and tumor target therapy.

Objective To detect the expression of osteopontin (OPN) in cervical local tissues of patients with chronic cervicitis, cervical intraepithelial neoplasia (CIN), cervical cancer. To investigate the possibility that OPN is used as tumor marker of cervical cancer. Methods The expression of OPN in 25 cases of chronic cervicitis, 18 cases of CIN and 21 cases of cervical cancer was detected by immuohistochemistry SP method. Results The positive expression rates of OPN in the chronic cervicitis, CIN and the cervical cancer had a rising trend (48 %, 77.78 % and 80.95 %, respectively) and their differences had statistical significant (P <0.05). The OPN expression level in cervical cancer had no statistical correlation with age, tumor size, clinical stage and other clinical pathological features (P >0.05). Although OPN expression level in cervical cancer wasn' t related with tumor clinical stage, positive expression rates of OPN had a gradually increased trend along with the clinical stage. Conclusion High expression of OPN is found in cervical cancer and may be related to the occurrence and development of cervical cancer.

Objective To investigate the effect of bedside comprehensive ability training and critical thinking on the improvement of the personality maturity of pediatric nurses. Methods A total of 102 nurses with pediatric working years within one year were selected,and then they were arranged to receive critical thinking in combination with bedside comprehensive ability training for 6 months. After the training, pediatric nurses′ critical thinking ability, bedside comprehensive ability and personality maturity were evaluated. Results Before training, the total score of Critical Thinking Disposition Inventory-Chinese Version (CTDI-CV) , total score of bedside comprehensive ability, personality maturity score were 288.21±25.44, 75.24±2.51, 84.01±32.26, after training, they were respectively 324.18±25.93, 92.65±3.17, 125.57±35.47. Comparison of the scores before training and after training showed statistically significant difference(t=7.071, 30.750, 6.190,P < 0.05 or 0.01). Setting personality maturity as the dependent variable, and and CTDI-CV and bedside comprehensive ability as the independent variables, regression analysis showed that CTDI-CV and bedside comprehensive ability had a positive impact on the personality maturity. Conclusions The ability of pediatric nurses' critical thinking ability and bedside comprehensive ability training can promote the improvement of personality maturity of pediatric nurses.

Objective To explore the effect of navigation assisted surgery system in the medical teaching in the department of neurosurgery. Method From May 4 of 2015 to June 3 of 2015, 51 medical undergraduates of clinical medicine in the Second Affiliated Hospital of Xi'an Jiaotong University were ran-domly divided into experiment group (navigation assisted surgical technique system teaching, n=25) and traditional group (traditional teaching, n=26). Practical effect of the different modes was evaluated by ques-tionnaire and examination results. Data were analyzed by SPSS 20.0. Enumeration data were compared between groups using chi square test or t test. Result After the teaching, the theoretical results of the experimental group and the control group were (83.05 ± 6.03) and (74.32 ± 7.12), and the difference was statistically significant (t=4.96, P=0.005). Clinical skills scores were (89.43 ± 5.12) and (81.11 ± 8.02), and the difference was statistically significant (t=2.91, P=0.029). The questionnaire showed that the experimental group students'!satisfaction degree to their own teaching method was better than that of control group (P<0.05). Conclusion Compared with the traditional teaching, the navigation assisted neurosurgical operation has obvious advantages. It can improve students'!enthusiasm for learning the professional knowledge and skills in neurosurgery, stimulate students'!learning interest and improve students'!test scores.

This article was aimed to explore the effect of acupuncture on HDAC2 activity in peripheral blood of chronic obstructive pulmonary disease (COPD) rats. The COPD rat model was established by cigarette smoking. Acupuncture was given for 3 consecutive weeks. The lung ventilation of rat was detected by equipment. Peripheral blood of rat was taken after 3 weeks. The HDAC2 enzyme activity was detected by fluorescence technology. ELISA was used in the detection of IL-10, IL-8 and TNF-αexpression in peripheral blood. The results showed that after acupuncture treatment, the lung ventilation was obviously increased compared with the model group (P < 0.05). Meanwhile, the HDAC2 activity in the peripheral blood of rat was obviously increased (P < 0.05). However, the expression of inflammatory cytokines IL-10, IL-8 and TNF-α was obviously reduced (P < 0.05). It was concluded that acupuncture treatment had a good efficacy on COPD rat. It indicated that acupuncture treatment might regulate HDAC2 activity to reduce inflammation.

Objective:To investigate the relationship between orthostatic intolerance (OI) and body mass index (BMI), blood lipid and serum protein levels in children and adolescents.Methods:A total of 122 children and adolescents aged from 6 to 17 years old, who were diagnosed with OI at the Department of Pediatric Cardiology, the Second Hospital of Lanzhou University from April 2018 to April 2019, were selected as the subjects.While, 56 children and adolescents in the health management center were selected as the healthy control group during the same period.Subjects were divided into syncope group and non-syncope group according to whether there was syncope in clinical history.The height and body mass of all children were measured, and venous blood were taken to detect blood lipids and serum protein in the morning.Date analysis were conducted with SPSS 22.0 software.Results:(1) The level of triglyceride in the OI group was lower than that in the healthy control group[(0.98±0.45) mmol/L vs. (1.28±1.04) mmol/L], and there was statistically significant( t=2.025, P<0.05); the BMI were respectively (17.56±3.23) kg/m 2 and (16.46±2.58) kg/m 2 in syncope group and non-syncope group, whose result indicated that the BMI in syncope group was higher than that in non-syncope group( t=2.085, P<0.05). (2) The results of binary Logistic regression analysis showed that the triglyceride level was an independent risk factor for OI( OR=0.504, 95% CI: 0.272-0.931, P<0.05). (3) The receiver operating characteristic curve evaluated the predictive value of triacylgly-cerol to OI.Results showed the sensitivity and specificity of OI were respectively 72.1% and 48.2%when the triacylglycerol was 1.09 mmol/L. Conclusions:Low triglyceride level and high BMI may be susceptible factors to OI in children and adolescents.Therefore, the diet of children with OI should be highly valued by clinicians and parents.

Objective:To analyze the characteristics of nerve injury in patients with diabetic peripheral neuropathy (DPN) and explore the diagnostic value of current perception threshold (CPT) and nerve conduction velocity (NCV) for DPN.Methods:One hundred and thirty-six DPN patients admitted to Beijing Puren Hospital from June 2017 to December 2019 were selected, and 130 diabetic non-DPN patients admitted during the same period were used as controls. All the subjects were tested by CPT and NCV. Among them, the detection of NCV included sensory nerve conduction velocity (SCV) and motor nerve conduction velocity (MCV). Statistical analysis was performed on the relevant indicators of the two groups of subjects.Results:The CPT values of the upper limb median nerve and ulnar nerve at 2 000 Hz, 250 Hz, and 5 Hz, the superficial peroneal nerves at 250 Hz, and 5 Hz, and the CPT values of the sural nerve at 2 000 Hz and 250 Hz were higher than those of non-DPN patients, DPN injury mainly occurred in myelinated nerve fibers in the lower extremities [60.29%(82/136)], and the difference were statistically significant ( P<0.05). The SCV and MCV of the median nerve, ulnar nerve, and common peroneal nerve in the DPN group were lower than those in the non-DPN group, the SCV abnormal rate was higher than the MCV: 55.88%(76/136) vs. 37.50%(51/136); 58.82%(80/136) vs. 41.18% (56/136); 67.65%(92/136) vs. 50.00%(68/136), and the differences were statistically significant ( P<0.05). The area under the predictive value curve (AUC) of CPT for DPN was 0.815 (95% CI 0.735 ~ 0.895). The AUC of NCV for DPN was 0.875 (95% CI 0.813 ~ 0.944). The AUC of CPT and NCV for DPN was 0.923 (95% CI 0.876 ~ 0.970). Conclusions:DPT patients have abnormal CPT and NCV, and nerve damage occurs mostly in myelinated nerve fibers and SCV. Diagnosing DPN by combining CPT and NCV is helpful to improve the detection rate of DPN.

Objective To summarize surgical experience of eight patients with pentalogy of Cantrell. Methods Six male and two female patients with pentalogy of Cantrell,aged from 4 months to 26 years old, average 7.35 years old, underwent surgical therapy for intracardiac anomalies and extracardiac anomalies from July 2007 to June 2009. Eight case with intracardiac anomalies include one case with only VSD, one case with only ASD, two cases with DORV, four cases with VSD and ASD or PTO. Experts majoring in cardiovascular surgery cooperated with doctors majoring in thoracic surgery and general surgery for satisfactory correction of intracardiac anomalies and extracardiac anomalies and repositioning heart to thoracic cavity. Results Ectopic heart of the first patient was simply repositioned into thoracic cavity following surgery of double outlet of right ventricle in another hospital two years before. Correction of introcardiac anomaly and reposition of ectopic heart finished at one time in 7 cases. Eight patients got full recovery except that residual shunt occurred in the second case which also got full recovery after transcatheter therapy. Ventricular diverticulum was removed in the fourth case because of difficult reposition of ectopic heart.With the help of general surgeon and thoracic surgeon, partial coronary ligament of liver and falciform ligament of liver in the left was cut in the first case and the left half lobe of liver was pushed downward. Bilateral pleural and marginal costal costochondral was cut and make thoracic wall upward so that ectopic heart can reset into thoracic cavity. And then, defect of diaphragm and abdominal wall were repaired with Proceed patch. In the other seven cases, bilateral pericardium and mediastinal pleura was cut and the 7th and 8th cartilage was transected and bilateral costal arch was closed so for complete thoracic angioplasty.Left ventricular dysfunction occurred in the fifth case with DORV and also got full recovery after symptomatic treatment. Full recovery was got in all cases after followingup from 1 to 23 months. No adverse complications occurred and every case live a wonderful life. Conclusion Pentalogy of Cantrell can be cured at one time by accurate correction of cardiac anomalies, cutting of bilateral pleural and marginal costal costochondral to make thoracic wall upward and enlarge thoracic space for repositinning of ectopic heart and using artificial patch to repair defect of diaphragm when necessary.

Objectives: To investigate the effect of short-term exposure to ambient NO₂ has influence on lung function and fractional exhaled nitric oxide (FeNO) in chronic obstructive pulmonary disease (COPD) patients. Methods: A panel of doctor-diagnosed stable COPD patients (n=33) were recruited and repeatedly measured for lung function and FeNO from December 2013 to October 2014. The patients who lived in Beijing for more than one year and aged between 60 and 85 years old were included in the study. We excluded patients with asthma, bronchial tensor, lung cancer and other respiratory disorders other than chronic obstructive pulmonary disease and occupational exposure and chest trauma surgery patients. Because the frequency of each subject visiting to the hospital was different, a total of 170 times of lung function measurements and 215 times of FeNO measurements were conducted. At the same time, the atmospheric NO₂ data of Beijing environmental monitoring station near the residence of each patient during the study period were collected from 1 day to 7 days lag before the measurement. Effects of short-term NO₂ exposure on lung function and FeNO in COPD patients were estimated by linear mixed-effects models. Results: The subjects' forced vital capacity (FVC), forced expiratory volume in one second (FEV₁), peak expiratory flow (PEF), and exhaled NO of subjects were (3.26±0.83) L, (1.66±0.61) L, (4.13±1.77) L/s, and (48.99±14.30) μg/m³, respectively. The concentration of NO₂ was (70.3±34.2) μg/m³ and the interquartile range (IQR) was 39.0 μg/m³. Short-term exposure to NO₂ resulted in a significant decrease in FVC among COPD patients' which was most obvious in 2 days lag. Every quartile range increased in NO₂ (39 μg/m³, 2 day) would cause a 1.84% (95%CI: -3.20%- -0.48%) reduction in FVC. The effects of exposure to higher concentration of NO₂ (≥58.0 μg/m³) on FVC estimate was -2.32% (95%CI: -4.15%- -0.48%)(P=0.02). No significant relevance of FeNO and NO₂ was observed in this study. Conclusions Short term exposure to ambient NO₂ may bring down pulmonary function in COPD patients.