Objective:To investigate the relationship between emotion variability and assessment of psychiat-ric symptoms in middle school students,and validate that by structure equation modeling.Method:A total of 129 junior middle school students aged 13 -15 years were selected and assessed with the SCL-90 scale for psychiatric symptoms,the Adolescent Daily Emotion Regulation Questionnaire (ADERQ)for emotion regulation strategies, daily reconstruction method (DRM)for emotion variability during two weeks.Results:The students had higher positive emotion score than negative emotion score [(2.7 ±0.7)vs.(1.4 ±0.3),P <0.001],and higher negative emotion variability than positive emotion variability [(0.4 ±0.1 )vs.(0.3 ±0.1 ),P =0.012].Positive emotion variability and negative emotion variability were positively correlated with total scores of SCL-90 (r =0.34,0.24;Ps <0.001).Structural equation modeling revealed positive emotion variability,negative emotion variability and e-motion regulation strategy of cognitive appraisal had a direct effect on psychiatric symptoms (the path coefficient were 0.21,0.28,-0.24;Ps <0.001),cognitive immersed strategy had a direct effect on psychiatric symptoms and negative emotion variability(the path coefficient was 0.14,0.13,P =0.037,P =0.041).Conclusions:It suggests that both negative emotion variability and positive emotion variability play an important role in psychiatric symp-toms.

Status epilepticus (SE) is one of the common medical emergencies of the pediatric age group.It may lead to serious and even irreversible neurological abnormalities,even death,if not diagnosis and treatment properly.To recognise etiology,rise factors,seizure type,treatment,outcome and the correlation between each other of children with status epilepticus are significant for management.This paper aimed to review recent epidemiological studies on children with status epilepticus,in order to provide evidences for the current clinical practice and further research.

BACKGROUND: Femoral head necrosis is a common progressive disabling disease in orthopedics, and it is difficult to reverse disease progression. Eventually, the loss of hip function seriously impact patient’s quality of life. OBJECTIVE: To review the research progress of bone marrow mesenchymal stem cells in the treatment of femoral head necrosis. METHODS: The PubMed, CNKI and WanFang databases were searched for relevant articles with the keywords of “bone marrow mesenchymal stem cells, femoral head necrosis” in English and Chinese, respectively. The search time was from January 2001 to April 2019. Articles that were not related to the purpose of the research and repetitive articles were excluded, and 42 articles that met the criteria were finally included for review. RESULTS AND CONCLUSION: Bone marrow mesenchymal stem cells potentially repair the femoral head,not only providing precursor cells, but also secreting cytokines and growth factors and initiating cell healing in thefemoral head. A large number of experimental and clinical studies have proved that bone marrow mesenchymal stem cells are available for the treatment of early femoral head necrosis.

Objective To assess the value of imaging examination technologies such as 2-D ultrasound(2-DUS),helical computed tomography (CT),contrast-enhanced ultrasonography (CEUS) and contrast-enhanced CT (CECT) in the positioning and qualitative diagnosis of pancreatic diseases.Methods 2-DUS,helical CT findings were comparatively reviewed to analyze in 44 cases(45 lesions) with pancreatic space-occupying lesions verified by operation and pathology,and investigated the enhanced mode and the perfusion features of CEUS and CECT in different phases.Results In 45 lesions,there were 29 malignant lesions and 16 benign lesions.CEUS and CECT had greater diagnostic value compared to 2-DUS and helical CT.The sensitivity,specificity and accuracy of 2-DUS for the malignant lesions were 72.41 ％,62.50％ and 66.67 ％,while the helical CT were 68.97％,75.00 ％ and 68.89 ％.The sensitivity,specificity and accuracy of CEUS for the malignant lesions were 93.10％,87.50％ and 91.11％,while the CECT were 86.21％,93.75％ and 86.67％.There was no statistical difference between CEUS and CECT in detecting pancreatic space-occupying lesions.Conclusions CEUS and CECT can provide more accurate diagnosis on for pancreatic space-occupying lesions than 2-DUS and helical CT.Following CECT,CEUS is a new technology for diagnosis on pancreatic space-occupying lesions.

Objective To quantify the right ventricular (RV) function in patients with left heart disease (LHD) related pulmonary hypertension (PH) by two-dimensional speckle tracking imaging (2D-STI),and explore its potential value in diagnosis of reactive PH.Methods Forty healthy volunteers and 65 patients with LHD related PH were enrolled.PH patients were further divided into two subgroups according to pulmonary vascular resistance(PVR):passive PH group and reactive PH group.A complete 2D-STI derived longitudinal strain of RV free wall was performed,and the basal,middle,apical longitudinal peak systolic strain (LS) and RV free wall global LS (RVLSbas,RVLSmid,RVLSapi and RVLSfw) were measured.Results Compared to control group,RVLSbas and RVLSfw in reactive PH group decreased significantly (all P ＜0.05).Compared to passive PH group,RVLSbas and RVLSfw in patients with reactive PH decreased significantly (all P ＜0.05).The differences of RVLSbas and RVLSfw between control group and passive PH group had no statistical significance (all P ＞0.05).No significant differences in etiology and left ventricular ejection fraction (LVEF) were observed between PH subgroups (all P ＞0.05).The area under the ROC curve of RVLSbas in predicting reactive PH was 0.93,the cut-off value was-21.86,and the sensitivity and specificity were 83 ％ and 89 ％,respectively.The area under the ROC curve of RVLSfw was 0.79,the cut-off value was-13.84,and the sensitivity and specificity were 59％ and 89％,respectively.Conclusions 2D-STI can realize quantitative assessment of RV function in patients with LHD related PH.RVLSbas and RVLSfw may have important clinical value in diagnosing patients with reactive PH,and differential diagnosis value between patients with passive PH and patients with reactive PH.

Aim To observe the effects of total flavones of hippophae rhamnoides L on myocardial ischemia-reperfusion injury and the MMP-9 and TIMP-1 expression in cardiac tissues of rats,and to explore the protective mechanism of total flavones of hippophae rhamnoides L on myocardial ischemia-reperfusion injury.Methods Fifty rats were classified into 4 groups by using the random grouping principle:model group,losartan group,sindacon group of different doses and sham operation group.The myocardial ischemia-reperfusion injury model was established by ligating left anterior descending coronary artery for 30 minutes and releasing then.The cardiac muscle tissue was stained by HE to observe its necrosis area and pathological changes as well as the expression of MMP-9 and TIMP-1by immunohistochemistry method.Results HE sections showed that necrosis of cardiac muscle in rats was significantly relieved in sindacon group by using different doses compared with model group,and immunohistochemistry sections showed that the sindacon group using different doses decreased the expression of MMP-9 compared with the model group and increased the expression of TIMP-1.Conclusion Sindacon has protective effect on cardiac muscle after the myocardial ischemia-reperfusion injury,and its mechanism may be related to its inhibition of the MMP-9 and increasing TMPM-1 expression in cardiac muscle.

Objective To investigate the distribution and antibiotic resistance of gram-negative bacilli for better antimicrobial therapy in our hospital.Methods A retrospective analysis was conducted for the 1 060 strains of gram-negative bacilli isolated from clinical specimens during 2013.Results Of the 1 060 gram-negative bacterial strains isolated during 2013,E.coli,K . pneumoniae,P .aeruginosa and A.baumannii were the leading pathogens,accounting for 29.3%,22.8%,11.5% and 9.9%,respectively.The prevalence of extended spectrum-lactamases (ESBLs)positive strains was 63.7%,32.2% and 28.0% in E.coli,K .pneumoniae and P .mirabilis,respectively.The Enterobacteriaceae strains were highly sensitive to carbapenems.The percentage of the P .aeruginosa isolates resistant to meropenem,imipenem or amikacin was lower than 30%.The percentage of the Acinetobacter spp.(A.baumannii accounted for 70.9%)strains resistant to meropenem and imipenem were 25.0% and 26.2%.Conclusions Most of the gram-negative bacilli are resistant to multiple antimicrobial agents. We should strengthen the monitoring of the antibiotic resistance of gram-negative bacilli and optimize antimicrobial therapy.

Objective To discuss the impact of an iterative reconstruction algorithm (True X) implemented with point spread function (PSF) on image quality and SUV in 18F-FDG PET, and compare with other reconstruction algorithms.Methods A total of 79 hypermetabolic lesions from 37 cancer patients (23 males, 14 females, age (63.38±15.25) years) were retrospectively studied.The PET images were reconstructed using the following six reconstruction algorithms, including FBP, FBP+TOF, iteration, iteration+TOF, True X, True X+TOF.Paired t test was used for statistical analysis.Results All six reconstruction algorithms showed significant difference in lesion SUVmax.The adoption of PSF increased SUVmax by 15%-16%, and decreased the dispersion of SUV in the liver parenchyma remarkably.Conclusions Lesion SUVmax calculated from different reconstruction algorithms has significant differences.Caution should be taken in using PSF, as it can improve image quality but may also increase lesion SUVmax.

Hydronephrosis is a common and frequent clinical disease. With the extensive application of minimally invasive techniques of Western medicine, it can quickly remove the obstruction and eliminate water. However, there may be problems of easy recurrence after surgery, causing more serious irreversible kidney damage. TCM has a unique advantage in the treatment of hydronephrosis, which can radically relieve the pain of patients, prevent recurrence, and protect the kidney function. Professor SHAO Zhao-di thinks that the cause of hydronephros is deficiency of kidney qi, which affects the function of gasification. Therefore, the treatment should be nourishing qi to invigorate spleen and reinforcing kidney for diuresis. In clinical practice, Bixie Fenqing Decoction can be used to treat hydronephrosis, which can obtain good efficacy.

OBJECTIVE To study the current situation and problems of military blood emergency support and nosocomial infections,and find out countermeasures.METHODS The current situations and problems of military blood emergency support and nosocomial infections management system were analyzed,especially paying attentions to those parts including selecting blood donors,blood collection,storage,transport and distribution.RESULTS There were a lot of shortcomings existed in the blood infection factors control and management on blood emergency support;many measures should be taken to elovate the level of blood emergency,and reduce the risk of blood infection.CONCLUSIONS Improving and reforming the management system of blood emergency support in army,and maximatily reducing the risk of blood infection are important.