Objective To investigate the status and influential factors of mental health of Pakistani and Bangladeshi peacekeeping forces in Liberia.Methods By random sampling,300peacekeeping officers and soldiers dispatched from Pakistan and Bangladesh(150 each)in Liberia were investigated with Chinese Military Mental Health Scale(CMMHS),Military Mental Maladjustment Scale(MMMS) and Social Support Rating Scale(SSRS),and they were carried out for two times on the 7th day and the 120th day after arrival in peacekeeping mission area.Results The total score and each factor score of CMMHS(except for obsessive-compulsive,anxiety and interpersonal sensitivity)and the total score of MMMS of the peacekeepers at the 7th day after their arrival in mission area were significantly higher than those at the 120th day(P

Objective To study the imaging characteristics of osteosarcoma.Methods 35 patients with osteosarcoma proved pathologically were examined by radiography,of them 25 cases were examined with CT scan or MRI,and 8 cases undergone contrast-enhanced MRI.The imaging features of osteosarcoma were analysed comparatively with that of pathology.Results The lesions localized at distal part of femur in 17 cases and proximal part of tibia in 8 cases,that were most location of this tumor.The imaging characteristics of osteosarcoma included bone destruction,neoplastic bone,periosteal reaction and soft-tissue mass,in some cases,epiphyseal plate and epiphysis were involved,even the joint face and the opposite osseous of joint(skip lesions).On enhanced MR scanning,the margin of tumor was enhanced in early and the center of tumor was delayed enhancement.CT could showed "sieve sign"and small neoplastic bone.Conclusion Osteosarcoma has certain imaging characteristics;X-ray examination is the first choice in diagnosing osteosarcoma,CT and MR could provide much more comprehensive imaging information for clinic.

Objective To evaluate the advantage and clinical value of javanica oil emulsion injection combined with radiotherapy for esophageal carcinoma. Method Randomized controlled trials (RCTs) concerning javanica oil emulsion injection combined with radiotherapy for esophageal carcinoma were made on electronic databases of CBM, CNKI, Wangfang, VIP and PubMed from 1990 to February 28, 2015. Quality of the included RCTs was assessed by Jadad scoring , and Meta-analyses were performed by RevMan5.3 software. Results Seven RCTs involving 575 patients were included in Meta-analysis. All studies were in low quality. The results of Meta-analyses showed that Javanica oil emulsion injection combined with radiotherapy for esophageal carcinoma, compared with control groups, could increase the recent curative effect (P < 0.000 01) and improve the quality of live (P = 0.000 8), decrease the hematologic toxicities (P = 0.03) and the incidence rate of radioaction esophagitis (P = 0.02), but not enough evidence was found to prove that it can enhance survival rate (P = 0.25). Conclusions The results of Meta-analysis indicate that javanica oil emulsion injection may have therapeutic effects on the treatment of esophageal carcinoma. Yet the effects of javanica oil emulsion injection still need to be confirmed by large multi-center randomized controlled trials.

Objective To investigate the way of fear conditioning memory model evoked and erased by foot-shock in tree shrew. Methods First, detect the tree shrew activities regularly in light/dark box. Second, test a suitable voltage degree of foot shock on tree shrew. Third, investigate the memory formation and erasing of fear conditioning on tree shrew of trial group. Results The duration of tree shrew (n=4) stay in the dark-box was significantly lon-ger than that of in the light box (P<0. 01) in normal condition. In the same environment of two light boxes, given different voltage degrees, the durations of tree shrew (n=6) stay in the stimulating chamber gradually reduced and the durations of tree shrew stay had significant difference between stimulatus chamber and no stimulatus chamber when the stimulus voltage up to 12 V ( P<0. 05 ) , 16 V ( P<0. 01 ) and 20 V ( P<0. 01 ) . The animal of trial group ( n=4 ) could build up the fear conditioning memory of the dark box with the stimulus of 16 V foot-shock in the dark box ( P<0. 001 ) . After formation of the fear conditioning memory, the same stimulus in light box ap-peared for 4 days. The durations of tree shrew stay in trial group (n=4) decreased in light box, and there was no significant difference between the trial group and the control group. Conclusion Tree shrew prefers to stay in the dark box. The suitable voltage for foot-shock on tree shrew is 16 V. The fear conditioning memory can be evoked and erased by foot-shock.

Chronic obstructive pulmonary disease (COPD) is the leading death cause of pulmonary diseases, ranking the fourth of global death causes. Self-management program is able to gradually improve the Airways of COPD patients with ventilation, reduce the degree of lung failure, elevate the health status as well as promoting self-efficacy, which is the key process to effectively control COPD relapse. In recent years, more and more domestic and foreign academic employ the widely-used network technology and carry out a large number of information study on COPD self-management intervention. This article reviewed literatures about the intervention methods on self-management of patients suffered from COPD, aimed at providing a better basis for exploring more effective self-management.

Objective To investigate the relationship between the impairment of immunity and the level of NO in peripheral blood in patients with persistent vegetative state(PVS) resulting from severe brain trauma.Methods The levels of the cortisol and NO in peripheral blood of 12 PVS patients and the control group were tested respectively by radioimmunoassay and nitratase reducing colorimetic method.The phagocytosis and killing of Candida albicans by monocytes were observed.Results The NO content in peripheral blood of PVS group was dropped obviously,but the cortisol level was basically in normal range.Conclusion The suppression of immunity of PVS patients resulted from severe head trauma is related to the decreasing of the NO content in peripheral blood.

Objective To explore the expression of recombinant adenovirus hypoxia-inducing factor-1? (HIF-1?) and its effects on the angiogenesis in a rat model of acute hindlimb ischemia. Methods (1) Recombinant adenovirus HIF-1?-Al?564 (Ad-H564 for short) was amplified in large scale in HEK293A cells and concentration gradient centrifuged in CsCl, purified by dialysis and then its titer was determined by spectrophotometry. (2) A model of acute ischemia in rats' hind limb was reproduced, and 72 rats were randomly allocated into Ad-LacZ group, Ad-H0 group, Ad-H564 group and control group (18 rats for each group). After the HIF-1? mRNA expression was detected, six rats of control group were intramuscularly injected with normal saline (NS group) to serve as control. Angiography and vascular cast were carried out in another two groups with in each six rats to serve as sham operated controls. In to hind limb skeletal muscles of rats of Ad-LacZ, Ad-H0 and Ad-H564 groups Ad-LacZ, Ad-H0 and Ad-H564 were respectively injected, normal saline was given to the rats of NS group, and nothing was given to the rats in sham group. (3) HIF-1? mRNA expression was determined by RT-PCR on the 1st, 3rd, 5th and 7th day after injection. (4) Selective arteriography and vascular cast were performed to evaluate the vascular density. Results (1) PCR and gene sequencing suggested that correct recombinant adenovirus HIF-1? was obtained after being amplified and purified, and the titer of adenovirus was 1011OPU/ml. (2) RT-PCR showed that the highest expression of HIF-1? mRNA (0.544 7?0.141 2) was seen in Ad-H564 group, and the value was significantly different compared with that of normal group and Ad-LacZ group (P=0.000), but it did not show significant difference compared with that of Ad-H564 group and Ad-H0 group (0.533 0?0.041 6, P=0.368). The expression of HIF-1? mRNA reached the highest value on the 7th day in all the groups. (3) Arteriography on the 28th day after injection showed that the density of the collateral vessels was higher in Ad-H564 group than that in Ad-H0 group, but no significant difference was found. Vascular casts showed denser microvasculature in Ad-H564 group than that in the other groups. Conclusions The present study suggests that single site mutation may enhance the expression of human HIF-1? gene in the local muscles, facilitate angiogenesis in the ischemic tissue, but no significant difference was found between the wild-type and the mutated HIF-1? genes.

Objective To establish the cancer vaccine (EC109-DC) prepared by fusions of esophageal carcinoma cell line with dendritic cell derived from cord blood and study the biological characteristics and antitumor immunity.Methods CD 34 + hematopoietic stem cells were isolated from cord blood using CD 34 + Progenitor Cell Isolation Kit by magnetic cell sorting system (MACS);expended the cells as DC,and then fused with EC109 by PEG-3600;selected the fusion cells by MACS;observed the phenotypes and proliferation by flow cytometry and technique of cell culture in vitro. Lymphocytes proliferation reaction and the CTL cytotoxicity were examined with MTT.Results EC109-DC could proliferate slowly in vitro and highly expressed CD80,CD83 and CD86.Lymphocytes proliferation reaction and the specific cytotoxicity against EC109 induced by EC109-DC cells were significantly higher than the control groups (P

Objective The 47 myocardial infarction patients (male 41, female 6, average ages 55 7?9 7 years) with silent myocardial ischemia (type Ⅱ SMI) were chosen The relationship was studied between the history of myocardial infarction (MI)and the degree of coronary arterial stenosis and the residual degree of stenosis after percataneous transluminal coronary angioplasty (PTCA) Methods All patients with MI were performed with exercise testing electrocardiogram to investigate the degree of myocardial ischemia The patients were also studied the degree of coronary arterial stenosis before and after PTCA Results The results showed before PTCA, the degree of the patients′ coronary arterial stenosis with a period of no more than three months of MI was higher than that of those patients′ with a period of over three months( P

[Objective]To discuss the clinical outcomes of low-energy tibial plateau fractures treated with arthroscopy-assisted operative management and locked by LCP.[Method]From January 2006 to March 2007,15 patients with tibial plateau fractures(SchatzkerⅠ,Ⅱ)were reduced with arthroscopy-assisted and treated by LCP and bone defects were filled with homogeneous allograft bone.[Result]With follow-up visits for 12～26 months,all cases were healed.According to creiteria of Rasmussen,excellent were in 10 cases,good in 4 cases,fair in 1 case,with the rate of being excellent and good added up to 93%.[Conclusion]LCP fixation is an effective technique for the low-energy tibial plateau fractures treatment with the advantage of less invasion,steadier fixation and lower complication rate.Arthroscopy-assisted operative management can help to reduce reduction loss from intra-articular more precisely to reach a higher union rate.It is also a preferable method for low-energy tibial plateau fracutures treatment(SchatzkerⅠ、Ⅱ).