Objective To explore the molecular mechanism of miR-125b promoting invasion,metastasis and epithelial-mesenchymal transition(EMT)of gastric cancer cells.Methods The expression of miR-125b in gastric cancer and its adjacent tissues was studied by qRT-PCR.After upregulating or downregulating miR-125b in gastric cancer cells,the protein expressions of DKK3 and SERPINA4 were detected by Western blotting.Dual luciferase reporting assay was used to verify whether miR-125b can target DKK3 and SERPINA4.MKN45 cells were co-transfected with miR-125b inhibitor and target gene siRNA.Migration and invasion experiments were conducted to explore whether miR-125b can regulate the biological function of MKN45 cells through DKK3 and SERPINA4.Then,the regulatory mechanism of SRF on miR-125b was investigated.Finally,by in vivo experiments,the expression of SRF in gastric cancer cells was upregulated or downregulated by lentivirus transfection;the number of lung metastases in nude mice was detected to explore the effect of SRF on gastric cancer cell metastasis.Results In this study,the expression of miR-125b increased in gastric cancer tissues,which was correlated with clinical stage and lymph node metastasis.Dual luciferase reporting experiments showed that DKK3 and SERPINA4 were the direct targets of miR-125b in gastric cancer cells,and could activate the Wnt/β-catenin signaling pathway,thereby promoting the transcription process of EMT-related transcription factors Twist1 and Slug,inducing the occurrence of EMT,and promoting the metastasis of gastric cancer.In vitro and in vivo experiments confirmed that SRF promoted the invasion and metastasis of gastric cancer cells by positively regulating the expression of miR-125b.Conclusion Taken together,SRF/miR-125b axis promotes the EMT and metastasis of gastric cancer cells,and these regulators represent new potential therapeutic targets or biomarkers for gastric cancer.

Objective:To construct a peacetime and wartime integrated training indicator system for nursing staff in Armed Police Force hospitals, so as to provide scientific basis for reform of nursing staff training in the Armed Police Force.Methods:Using a mixed research design, from October 2021 to May 2022, based on the literature review and semi-structured interviews, the first draft of peacetime and wartime integrated training indicator system for nursing staff in Armed Police Forces hospitals was formed. The Delphi method was used to consult 15 experts for 2 rounds to determine the final version of the system.Results:The recovery rate of 2 rounds of expert inquiries was 100%, and the authority coefficients of the experts were 0.82 and 0.79. The Kendall′s rank-order correlation coefficients of 2 rounds of expert inquiries were 0.49, 0.51 for level-1 items, 0.27,0.31 for level-2 items ( all P<0.05). The final established peacetime and wartime integrated training indicator system for nursing staff in Armed Police Force hospitals included 5 level-1 items with 36 level-2 items, which were organizational management, teacher resources, training content, training forms and training assessment. The weights of all 5 level-1 items were from 0.135 to 0.221. Conclusions:The peacetime and wartime integrated training indicator system for nursing staff in Armed Police Force hospitals is scientific and reliable, which provides a reference for nurse training in Armed Police Force hospitals.

Objective:To evaluate the competence of head nurses by using the in-basket test for establishing a hierarchical training system for these nurses.Methods:A set of in-basket test was independently designed to evaluate the head nurses of a tertiary hospital in September 2021.Fourteen competency indicators, including positive initiative, coordination and communication ability, and leadership, problem solving ability, motivation, empowerment, attention to quality and order, etc, were selected to analyze the answers of the in-basket test and score their competency level. The measures were described by Mean±SD and M(IQR), and the counts were described by rates and percentages. The rank sum test and multiple linear regression were used to analyze the influencing factors of competency scoring of head nurses. Results:A total of 133 head nurses were tested, with a total competency scoring of 30.0(5.5). The highest indicators were talent cultivation 3.0(2.0), positive initiative 3.0(1.0), coordination and communication ability 3.0(1.0), while those with lower scores were empowerment 1.0(1.0) and motivation 1.5(1.5). The rank sum test analysis showed that age, position, job position character and working seniority were the influencing factors of competency score( P<0.05). The multiple linear regression analysis showed that, working seniorities of 16-20 years( β=0.583, P=0.013), 21-25 years( β=0.732, P=0.008), 26-30 years( β=0.632, P=0.026) were the influencing factors of competency score of head nurses. Conclusions:The in-basket test is practical to evaluate the competence of head nurses as a basis for their targeted training in the future.

Objective To investigate the effect of time interval between diagnosis and surgical treatment on the prognosis of breast cancer.Methods A retrospective study that include a total of 252 female patients who underwent breast cancer diagnosis and treatment in the Second Affiliated Hospital of Xi'an Jiaotong University from April 2012 to August 2014 were included in the present study,the average age was (58.2 ± 10.8) years old,range from 31 to 67 years old.General demographic information and data of tumor were collected.Information on postoperative recurrence,metastasis,death,and disease-free survival status of breast cancer patients were followed up 5 years by outpatient follow-up or telephone follow-up.All participants were divided into four groups (＜2 weeks,2-4 weeks,4-8 weeks,≥8 weeks) by the time interval between diagnosis and surgical treatment,including 26,118,78 and 30 cases,respectively.In addition,according to the diameter of breast cancer tumors,all participants were divided into three groups (＜20 mm,20-40 mm,and ≥40 mm),including 99,124,and 29 cases,respectively.According to the results of pathological examination of the lymph nodes obtained during intraoperative dissection,the all participants were divided into three groups (lymph nodes without metastasis,1 to 3 metastasis,and ≥3 metastasis),including 66,124,and 62 cases,respectively.The Cox proportional regression risk models were used to assess the hazard ratio (HR) and its 95％ confidence interval (CI) of time interval between diagnosis and surgical treatment with the prognosis of breast cancer,with adjustment for age,education levels and body mass index.Further,stratified analysis by tumor characteristics,including pathological type,histological grade,tumor diameter,lymph node metastasis,and receptor expression were also conducted to evaluated the above association.Kaplan-Meier survival curve was used to evaluate the effects of time interval between diagnosis and surgical treatment on the prognosis of breast cancer.Results The Kaplan-Meier survival curves for the five-year follow-up of total survival time between 4 different time intervals groups showed significantly different (P ＜0.001),and patients with a pre-treatment interval of ＜2 weeks had the longest survival time,while those with ≥8 weeks had the lowest survival time.With a one-week interval before treatment,the overall risk of death in breast cancer patients increased by 6％ (HR =1.06,95％ CI:1.01-1.1 l),and the risk of breast cancer death increased by 8％ (HR =1.08,95％ CI:1.02-1.14),the risk of distant metastasis of breast cancer cells increased by 10％ (HR =1.10,95％ CI:1.08-1.13).With the increase in breast cancer tumor diameter (＜20 mm,20-40 mm,≥40 mm),the overall risk of death due to prolonged treatment interval increased gradually,with HR (95％CI) were 1.06 (1.03-1.09),1.08 (1.02-1.12) and 1.11 (1.05-1.17),respectively.With the increase of lymph node metastasis in breast cancer (no metastasis,metastasis at 1-3,≥ 3 metastasis),the total mortality risk caused by prolonged treatment time interval also showed an increasing trend,with HR (95％CI) were 1.04 (1.02-1.08),1.06 (1.04-1.08) and 1.08 (0.99-1.11),respectively.The same results were also shown in the effect of tumor diameter or distant lymph node metastasis on the association between treatment time interval and breast cancer survival and distant metastasis of breast cancer cells.Conclusion With the prolongation of the time interval between the diagnosis of the breast cancer and the surgical treatment of breast cancer patients,the risk of postoperative death is significantly increased,and the association is more pronounced in breast cancer patients with larger tumor volume or higher distant lymph node metastasis.

Objective To explore the effect of scenario simulation training to nurses in improving the rescue ability at ICU. Methods A total of 84 nurses were enrolled and divided into12 groups, who received 6 scenarios training developed by researchers. The score of theoretical knowledge, time of practice completion and 7 operating practices were compared before and after training. Results The theoretical knowledge score of the nursing staff before the exercise was 72.21 ± 3.14, and the score was 91.77 ± 4.55 after the exercise, and the difference before and after the exercise was statistically significant (t=2.77, P<0.05). After practice, nursing staff in cardiopulmonary resuscitation (CPR), intestinal spillover, limb fracture, pelvic fractures, burns, bleeding, glass into the seven skills score 96.23 ±4.80, respectively 96.92±4.12, 96.59±3.97, 93.79±3.45, 97.71±4.18, 95.58±4.16, 91.67±3.31, were higher than drills before 85.43± 4.55, 65.44± 4.21, 74.05± 3.25, 66.35± 2.95, 85.31± 4.05, 81.41± 3.11, 69.59± 3.96.There was a significant difference in 7 operational skills between before and after operation (t=4.010-9.780, P<0.01) . After practice,six scenario completion time was (265.45 ± 41.37), (274.90 ± 43.15), (296.52 ± 42.09), (285.44 ± 47.15), (296.42 ± 43.51), (303.50 ± 36.92) s respectively, than drills before (366.29 ± 41.12), (363.54 ± 32.94), (367.78 ± 33.75), (371.29 ± 40.16), (370.57 ± 34.69), (372.98 ± 35.32) s. There was a significant difference in time of finishing 6 scenarios between before and after operation exercises (t =2.190-6.210, P< 0.05). Conclusions Scenario simulation model training can improve the theoretical knowledge, time of practice completion andpractices ability of ICU nursing.

Objective To explore the clinical efficacy of enteral nutrition combined with traditional Chinese medicine (TCM) acupuncture and moxibustion for treatment of craniocerebral trauma complicated by gastric paralysis.Methods A prospective study was conducted.One hundred and sixty-seven patients with craniocerebral trauma complicated by gastric paralysis admitted to the Department of Neurological Critical Care Medicine in Affiliated Hospital of the Logistics University Chinese People's Armed Police Force from January 2013 to October 2015 were divided into single group (83 cases) and combined group (84 cases) according to the random number table method.The basic treatment program was the same in the two groups.On the basis of gastrointestinal decompression,a nasojejunal tube was indwelled in the digestive canal of the patients in single group,and the nutrient food could be given by dripping slowly and continuously through the tube into the body,while in the combined group,they were additionally treated by acupuncture and moxibustion at auricular point,zusanli and neiguan acupoints,1 time a day,each time 30 minutes.Both groups were treated consecutively for 30 days,and then the clinical efficacies were evaluated.Before and after treatment in both groups,the changes of total serum protein (TP),pre-albumin (PA),hemoglobin (Hb) were observed;the incidences of reflux,vomiting,abdominal distension,diarrhea,pulmonary infection and intestine derived infection were also evaluated.Results After treatment the levels of TP,PA,Hb were significantly higher in combined group than those in the single group [TP (g/L):36.97 ± 2.17 vs.33.14± 2.13,PA (mg/L):215.19 ± 7.91 vs.203.15 ± 6.12,Hb (g/L):126.73 ± 11.17 vs.117.61 ± 11.24,all P ＜ 0.01].The numbers of patients with reflux,vomiting,abdominal distension,diarrhea were significantly lower in combined group than those in the single group,respectively (the number of patients had reflux being 15 cases vs.31 cases,vomiting 13 cases vs.28 cases,abdominal distension 17 cases vs.29 cases,diarrhea 17 cases vs.31 cases) and pulmonary infection (17 cases vs.29 cases),intestine derived infection (4 cases vs.12 cases),all the above comparisons showing statistically (all P ＜0.05).Conclusions Enteral nutrition combined with acupuncture and moxibustion treatment can effectively enhance the patients' nutritional status,reduce gastrointestinal dysfunction and the incidence of complications,thus the prognosis of patients with craniocerebral trauma complicated by gastric paralysis is obviously improved.

Objective:To explore the combined application effect of failure mode and effect analysis (FMEA) and root cause analysis (RCA) in IV infusion risk management of pediatric outpatient so as to enhance the quality of care and ensure the safety of outpatients.Methods: For this exploration, a special analysis team was established and the flowchart was drawn up, and the potential failure modes were listed by using FMEA. And the RCA was used to analyze and evaluate the key mode in these potential failure modes so as to find the root cause might affect the safety of IV infusion, and then the improved measures were implemented and the effects of new measurement were evaluated. Results:After implemented the improved measures, the risk of top 4 risk priority number (RPN) in intravenous infusion flow decreased obviously. For the transfusion management, patients' satisfaction increased from 78.09% to 95.03% (P<0.05), and nurses' satisfaction increased from 83.79% to 97.80%(P<0.05).Conclusion: The combined application of FMEA and RCA in the IV infusion risk management of pediatric outpatient can effectively reduce the occurrence of risk events, reduce nursing complaints and disputes, and enhance the quality of nursing care.

Objective To retrieve and analyze the available evidence on prevention of needlestick injuries among healthcare workers and summarize the best available evidence.Methods We searched the BMJ best practice,Uptodata,Cochrane Library(2014),Joanna Briggs Institute Library,Registered Nurses' Association of Ontario,Scottish Intercollegiate Guidelines Network,National Guideline Clearinghouse,and complementally searched the PubMed,EM-base,CNKI and Centers for Disease Control to collect literatures including guideline,evidence summary,best practice information sheet,recommended practice and systematic review.Results Nine references were selected including a clinical decision support system,3 evidence summaries,2 recommended practices and 3 systematic review.Finally,7 items of best evidence were summarized,including:wearing double gloves,never recapping needles,using blunt-tip suture,using a neutral zone for passing sharp device,adopting the safety features of sharps,using sharp disposal containers,and continuous education for needlestick injuries.Conclusion Healthcare workers should regulate their behaviors of using sharp instruments during clinical practice and guarantee personal safety by consulting high level evidence.

Objective To investigate nursing interns’knowledge and attitude towards needle stick injury before clinical practice.Methods In 20-23 June,2015,nursing interns who were about to start clinical practice in a hospi-tal were investigated,nursing interns’knowledge and attitude towards needle stick injury were surveyed through questionnaire.Results A total of 350 questionnaires were distributed,324 (92.57%)responded questionnaires were available.40(12.35%)questionnaires were responded by male interns,and 284(87.65%)were by female in-terns;34(10.49%)interns had bachelor degree;the mean age of interns were (20.83 + 1 .24)years old.The correct answer rates about questions related to injury occurring during needle recapping and wearing gloves were low (about 60%).About 70% of the interns gave the correct answers to questions about hepatitis B infection due to needle stick injury following hepatitis B vaccination,as well as medication after injury.Score for individual question about attitude towards needle stick injury was ≤3,the major related problems were susceptibility of blood borne diseases and recapping needles.Conclusion Needle stick injury-related knowledge and attitude among nursing interns is inadequate,including recapping needles,timely report,susceptible to infectious diseases,and so on.It is necessary for schools and teaching hospitals to strengthen the education about occupational protection among nursing interns, so as to improve the attitude and ability of professional protection.

Objective To discuss the application of informed consent of skin care. Methods The informed consent of skin care was designed by nurses themselves. Informed consent of skin care was applied in the nursing of critically ill patients from October 2013 to August 2014. Comparisons were conducted before and after the use of informed consent of skin care. Results After the application of the informed consent of skin care, there was no complaints while the incidence of complaints was 9. 86% before the application of informed consent of skin care (P<0. 05). Family satisfaction of the skin care was higher than before the application of the informed consent of skin care (98. 4% and 87. 3%) (P <0. 05). Conclusions The application of the informed consent of skin care can improve the quality of skin care in critically ill patients, enhance the relationship between nurse and patient, increase the satisfaction of skin care.