Gastric cancer is one of the most common malignant tumors in China, and its pathogenesis is complex. At present, there is no good method for the diagnosis and treatment of gastric cancer. However, studies have shown that microRNA (miRNA) has abnormal expression in gastric cancer, which participates in the regulation of gastric cancer related genes, and has an impact on the occurrence, development, diagnosis and treatment of gastric cancer. This paper aims to review the relationship between miRNA and the diagnosis and treatment of gastric cancer, as well as the drug resistance in the treatment, so as to lay the foundation for the follow-up research and clinical diagnosis and treatment.

Objective To investigate the current status of workplace violence among Nursing Staff. Methods The Modified Version of Hospital Workplace Violence Questionnaire was used to investigate 792 nursing staff about their experiences of workplace violence over the past one year in a third-grade Class-A comprehensive hospital in Xi′an city. Results The prevalence of workplace violence among 792 participants was 58.08%(460/792), Outpatient department, Emergency department, Obstetrics and Gynecology department, Pediatrics department were the high-risk areas of workplace violence. Day-shift was the main period of workplace violence occurred. The families of patients, middle-aged, male were the main perpetrators. 72.60%(575/792) of the respondents thought the workplace violence were unavoidable. Correct media orientation (89.33%, 707/792) was considered as the primary measure for preventing workplace violence. Patience explanation (74.13%, 341/460), forbearance (53.04%, 244/460) were the main methods for coping with hospital workplace violence. Grievances (75.38%, 347/460), anger (65.65%, 302/460), part of them even wanted to resign (21.84%, 100/460) after experiencing workplace violence were their feelings. Security patrols (81.63%, 647/792), wards installed cameras (77.43%, 613/792) and bright lights (53.42%, 423/792) in the night work areas were the main measures to prevent workplace violence that the hospital had taken to prevent workplace violence. Conclusions Workplace violence among nursing staff is common. It is suggested that hospitals and the relevant government departments should conduct further intervention research, to formulate feasible administrative riot guiding for reducing the incidence of workplace violence.

Objective:To explore the incidence and epidemiological features of workplace violence among medi-cal staffs in a Third - grade Class - A hospital in Xi'an,and to provide scientific basis for the hospital and relevant health management departments to make workplace violence prevention and control measures. Methods: Using Hospital Workplace Violence Questionnaire, a survey was conducted among medical staffs in a Third - grade Class - A hospital in Xi'an to investigate the occurrence of workplace violence over the past one year. Results:A-mong the 1174 respondents,655 suffered workplace violence in the past one year,with a rate of 55. 79％ ;the vio-lence occurred mainly in day shift and wards;the perpetrators were mainly middle - aged,male and the families of patients;69. 42％ of the respondents thought the workplace violence were unavoidable and 87. 31％ of the respond-ents considered that the top measures that can be taken to prevent the workplace violence was "the correct media o-rientation";the main coping methods of medical staffs were patience explanation and forbearance,and after suffering workplace violence,the medical staffs would feel grievances,anger,declining enthusiasm for work and even didn't want to do medical care. The main measures that the hospital had taken to prevent workplace violence mainly in-cluded the security patrol,installing cameras in wards and keeping light bright at night in working area. Conclu-sions:Workplace violence is common among medical staffs. To prevent and control hospital workplace violence,it is recommended that:① Hospital employ more security personals and should particularly strengthen security work in high - risk period,high - risk departments;②it should strengthen the training of medical staff on the prevention and control of workplace violence and strengthen popularization of the relevant legal knowledge to the client;③it should strengthen the communication and cooperation with media and promote the correct media orientation;④it should smooth the patient feedback channels and timely correct the existing problems.

Objective: To explore the feasibility of applying Omaha system theory to patients with coronary heart disease (CHD) through comparative analysis of nursing description. Methods: Using content extraction analysis method, the nursing records, nursing plans and nursing measures of discharged patients with CHD were retrieved from the medical records, and then the conceptual consistency of the extracted records and the problem classification system and intervention measures in the Omaha system were evaluated by cross mapping method. Results: A total of 2 609 nursing problems and intervention measures were extracted from the medical records of 68 patients with CHD. Among them, 1 844 (70.68%) records were labeled as "perfect fit", 608 records (23.30%) as "partial fit", and 157 (6.02%) recordsas "not fit at all". The total fit rate was 93.98% (perfect fit and partial fit). The most frequently reported problems were in physiological domain, followed by health-related behaviors domain, psychosocial domain and environmental domain. The nursing interventions extracted accounted for 26.67% (1 968 sentences) of directions and l00.00% (4 kinds) of categories in the intervention scheme of Omaha system. Conclusions The conceptual congruence between the medical records of patients with CHD and the Omaha System is quite high. It can help to improve nursing problems of patients of CHD in health-related behavioral domain, psychosocial domain and environmental domain, and can be applied to such patients after appropriate adjustment, so as to help clinical nursing staff to provide specialized and all-round guidance for patients with CHD.