Objective To explore the job burnout and its related factors among nurses.Methods 486 clinical nurses from a three grade second level general hospital were investigated by Moreno-Jimenez nursing burnout scale (NBS) and using SPSS17.0 software and ANOVA method to analyse the data.Results NBS results showed the score of job burnout in 486 objects was (164.92 ± 25.60).Significant differences of job burnout levels were showed among ages,marital status,professional titles,working periods,working relationship,work load,income,and housework periods (P ＜ 0.05).Conclusion Job burnout is a general phenomenon in these investigated nurses and its level is above average.Administrators should pay more attention to these related factors which can easily cause job burnout and take positive feasibility assistant strategies.

Objective To observe the effects of propofol and etomidate on inflammation and ox-idative stress in septic mice.Methods Sixty-four male adult BALB/c mice were randomly divided into four groups:normal control group (N),sepsis group (S),propofol treatment group (P)and etomid-ate treatment group (E).The septic mice model was established by lipopolysaccharide (LPS,20 mg/kg)intraperitoneal injection,and propofol (60 mg/kg)or etomidate (10 mg/kg)was injected in the abdominal cavity at 0.5 h after LPS injection.Serum interleukin-6 (IL-6)concentrations and in-terleukin-10 (IL-10)concentrations were measured at 2 h and 6 h after LPS injection;malondialde-hyde (MDA)content of lung,liver and kidney tissue was measured at 6 h after LPS injection. Results Compared with group N,serum IL-6 concentrations increased significantly (P <0.05),and IL-10 concentrations decreased significantly (P <0.05)at 2 h and 6 h after LPS injection in group S;MDA content of lung,liver,kidney increased significantly (P <0.05 )at 6 h after LPS injection in group S;Compared with group S,serum IL-6 concentrations decreased significantly (P <0.05),and IL-10 concentrations increased significantly (P < 0.05 )at 2 h and 6 h after LPS injection in both group P and E;MDA content of lung,liver,kidney decreased significantly (P <0.05 )at 6 h after LPS injection in group E,but only MDA content of lung decreased significantly (P <0.05)at 6 h af-ter LPS injection in group P;Compared with group P,serum IL-6 concentrations was significantly lower (P <0.05),and IL-10 concentrations was significantly higher (P <0.05)at 2 h and 6 h after LPS injection in group E;MDA content of lung,liver,kidney was significantly lower (P <0.05)at 6 h after LPS injection in group E.Conclusion Both propofol and etomidate injected in the abdominal cavity can reduce injury of inflammatory and oxidative stress in septic mice induced by LPS,and the effect of etomidate is more significant.

Objective To observe the effect of dexmedetomidine on inflammation, oxidative stress and lung injury in lipopolysaccharide( LPS)-induced septic mice.Methods Forty eight male adult BALB/c mice were randomly divided into three groups (n=16): normal control group (Ctrl), sepsis group (Sep), and Dex group.Ae septic mice model was established by LPS 20 mg/kg,and Dex 30μg/kg injected intraperitoneally at 0.5 h after LPS injection.The concentrations of serum IL-6 and IL-10 were detected at 2 h and 6 h after LPS injection while myeloperoxidase ( MPO ) activity and malondialdehyde( MDA) content of lungs were detected and weight dry ratio ( W/D) of lungs was calculated at 6 h after LPS injection.Pathological changes were observed in left lung HE stained with optical microscopy at 6 h after LPS injection. Results Compared with Sep group, the concentrations of serum IL-6 decreased significantly(P <0.05), while the concentrations of IL-10 increased significantly(P<0.05) at 2 h and 6 h after LPS injection in Dex group.MPO activity, MDA content and W/D of lungs decreased significantly(P<0.05) at 6 h after LPS injection in Dex group.The injury to the lung was lightened significantly under optical microscopy in Dex group.Conclusion Dex protects against LPS-induced ALI in septic mice by inhibiting systemic inflammatory response, reducing lung tissue inflammatory infiltration and oxidative stress.

OBJECTIVETo explore the anesthetic effects of repeated administration of propofol combined with vitamin C in mice.

METHODSForty mice were subjected to daily intraperitoneal injections of 80 mg/kg propofol (P80 group), 70 mg/kg propofol and 50 mg/kg vitamin C (P70+Vc50 group), 55 mg/kg propofol and 100 mg/kg vitamin C (P55+Vc100 group), or 50 mg/kg propofol and 200 mg/kg vitamin C (P50+Vc200 group) for 6 consecutive days, and the anesthesia induction time and anesthesia duration were recorded.

RESULTSCompared with the P80 group, the mice in P55 + Vc100 group and P50 + Vc200 group showed significantly shorter anesthesia duration on the first 3 days (P<0.05). In all the groups, anesthesia duration was significantly shortened in the following days compared with that on day 1 (P<0.01); anesthesia duration was shorter on day 3 than on day 2 in P50 + Vc200 group (P<0.01), and was shorter on days 4, 5, and 6 than on day 2 in all the groups (P<0.01). In all the groups, the rate of loss of righting reflex (LORR) decreased gradually with time in a similar pattern.

CONCLUSIONVitamin C can reduce the dose of propofol without obviously affecting the anesthetic effect to reduce the incidence of drug tolerance and potential dose-related side effects of propofol.

Anesthesia ; Anesthesia Recovery Period ; Anesthetics, Intravenous ; administration & dosage ; pharmacology ; Animals ; Ascorbic Acid ; administration & dosage ; pharmacology ; Drug Tolerance ; Mice ; Propofol ; administration & dosage ; pharmacology

Objective:To observe the clinical characteristics and guideline compliance of chronic obstructive pulmonary disease (COPD) patients with initial triple therapy in real-life world.Methods:This study is a cross-sectional study. The subjects of the study were COPD patients admitted to 13 hospitals in Hunan Province and Guangxi Zhuang Autonomous Region from December 2016 to December 2021. The initial treatment was triple inhaled drugs. The data collected included gender, age, diagnosis, body mass index (BMI), history of acute exacerbation (AE) in the past year, pulmonary function, COPD Assessment Test (CAT) score, modified British Medical Research Council Dyspnea Questionnaire (mMRC), inhaled drugs and other indicators. The characteristics and differences of COPD patients before and after 2020 were analyzed.Results:7 184 patients with COPD were enrolled in this study, including 2 409 COPD patients treated with initial triple therapy, accounting for 33.5%(2 409/7 184). Taking January 1st, 2020 as the cut-off point, 1 825 COPD patients (75.8%) received initial treatment with triple inhaled drugs before 2020 and 584 patients (24.2%) after 2020 were included in this study. Compared with COPD patients before 2020, the COPD patients after 2020 had higher FEV 1% [(40.9±15.5 )% vs (39.3±15.5)%, P=0.040], lower CAT [(15.8±6.5)point vs (17.5±6.2)point, P<0.001], less AE in the past year [1(0, 2)times vs 1(0, 2)times, P=0.001] and higher rate of non-AE [255(43.7%) vs 581(37.1%), P=0.006]. In addition, before 2020, patients with COPD were mainly treated with open triple drugs (1 825/1 825, 100%); after 2020, 306 patients (52.4%) received open triple inhaled drugs, and 278 patients (47.6%) received closed triple inhaled drugs. Conclusions:In real-life world, most of patients with COPD treated with triple therapy have severe lung function, obvious symptoms and high risk of acute exacerbation. The real-world prescribing of triple therapy in patients with COPD does not always reflect recommendations in guidelines and strategies, and overtreatment is common. After 2020, prescribing triple therapy for COPD patients is more positive and worse consistency with guideline.