Objective To study the role of KuS0 in the treatment of esophageal cancer through inhibiting the Ku80 expression by shRNA. Methods shRNA-KuS0 vector was constructed. The effectiveness and feasibility of RNA interference were confirmed by Western blot and RT-PCR methods. The cell sensitivity to ganuna-rays was studied by colony formation assay. The effects of shRNA-Ku80 on cell cycle were observed by flow cytometry analysis. Results ShRNA-Ku80 vector was constructed successfully. Inhibition of Ku80 expression by shRNA enhanced the sensitivity of esophageal cancer cells to gamma-rays, shRNA K3 or shRNA H2 showed higher percentage of cells in G2/M phase (61.8% vs 28.6% ;64.3% vs 28.6%). Conclusions Inhibitions of Ku80 expression by shRNA play a role in the treatment of esophageal cancer. Ku80 might be a new target of tumor treatment.

Objective To investigate the inhibition effect of silencing Ku80 gene combined with irradiation on growth of esophageal cancer xenografs. Methods shRNA-Ku80 vector was constructed.The expression of Ku80 protein was inhibited by shRNA-Ku80 vector by using Western blotting. 20 BALB/c nude mice were randomly divided into 4 groups, including control group, radiation group, shRNA-Ku80 group and combined group. The growth of esophageal cancer xenografs was observed. The expression of Ku80 was examined in esophageal cancer xenografs by IHC. Results Effective target sequence was selected. The growth of esophageal cancer xenografs was inhibited by shRNA-H2 and radiation, especially in combined group. The inhibition rate of growth in three groups above was 32.0% , 39. 9% and 68. 9% ,respectively. The expression of Ku80 was reduced to 58% by shRNA-H2 in esophageal cancer xenografs ( t = 3.77, P ＜ 0. 05 ). Conclusions Combination of silencing Ku80 and radiation could enhance radiotherapeut effect of esophageal cancer xenografs.

Objective In order to explore the possibility of autologous transplantation of olfactory mucosa for spinal cord repair,the changes of autologous olfactory mucosa being transplanted into spinal cord and the effect of promoting axon regeneration in adult rats were investigated. Methods Forty male adult rats were divided into two groups randomly:olfactory mucosa transplantation and control groups.Olfactory mucosa (1*!mm+2) was taken from the posterior region of nasal septum,and this graft was transplanted into the posterior funiculus of cervical 1 segment of spinal cord and destructed the corticospinal tract(2*!mm?1^5*!mm).The control graft was derived from the respiratory lamina and then was grafted into the corresponding lesion.After being survived for 4-6 weeks,the animals were killed,the transplanted site was sectioned horizontally,immunofluorescence double labeled with the neurofilament(NF) and anti-NGFR-p75,investigated under the confocal microscope.Another set of slice was used immunohistochemistry to investigate the olfactory mucosa how to integrate with the surrounding tissue. Results The control lesions have the obvious hollow,no p75-positive reaction in the respiratory lamina and no NF-positive fibers grew through it;olfactory mucosa group showed that olfactory mucosa which is labeled p75-positive healed up with surrounded tissue,the hollow declined markedly,the labeled olfactory ensheathing cells(OECs) soakage into the nerve tissue.OECs induced a fine,unbranched,elongative growth of the cut CST axons.The axons were regenerated through the graft and continued to reenter into the caudal host part.Conclusion Autologous olfactory mucosa may be the donor which could repair the spinal cord injury for clinical situations.

Objective To compare the setup errors of two position fixation, head-neck-shoulders immobilization system and trunk immobilization system in radiotherapy for esophageal cancer, and to provide technical guidance for the fixed modes and determination of plan target volume (PTV) in the intensity modulated radiation therapy (IMRT) of esophageal cancer. Methods 97 thoracic esophageal cancer patients treated with radiotherapy were collected and divided into two groups: head-neck-shoulders group (51 patients immobilized with head-neck-shoulders immobilization system) and trunk group (the other 46 patients immobilized with trunk immobilization system). Before the weekly radiotherapy, all the patients received cone-beam CT (CBCT) scan to get the setup errors of X axis (left and right), Y axis (head and foot) and Z axis (front and back) on line. Results In the head-neck-shoulders group, the errors in X, Y and Z direction were (0.333 ±0.400) cm, (0.333 ±0.291) cm and (0.238 ±0.256) cm, respectively. In trunk group, the errors were (0.327±0.255) cm, (0.582±0.501) cm and (0.189±0.154) cm, respectively. There were statistically significant differences in the setup errors in Y axis and Z axis between the head-neck-shoulders group and the trunk group (P< 0.05). Conclusions In the radiotherapy for thoracic esophageal carcinoma, there is no difference in the X axis setup error between head-neck-shoulders system and trunk immobilization system. The Y axis setup error of head-neck-shoulders group is less than that of the trunk group. The Z axis setup error of trunk group is less than the head-neck-shoulders group.

Objective To investigate the gene expressions of IL-1 and TNF-? in bronchoalveolar lavage fluid(BALF) and lung tissues in mice with pulmonary fibrosis(PF) at various periods and to study the effects of cytokines on pulmonary fibrosis.Methods Forty male mice were randomly divided into two groups:experimental group(n=30) and control group(n=10),and poured respectively by bleomycin solutions and saline and killed on the 3rd,7th,14th,28th and 56th day.RT-PCR method was used to analyse the mRNA expressions of IL-1 and TNF-?.Results ① The expressions of IL-1 mRNA and TNF-? mRNA in BALF in experimental group were higher than those in control group(P

On the basis of analyzing the transition and development trend of current medical and pharmaceutical mode,this article proposed that in the process of pharmacy talents training,not only biological,but also the construction of natural drugs knowledge should be stressed.In addition,the necessity of natural drugs knowledge construction as well as its practice and future blueprint in our university were illuminated intensively,in order to provide reference for the training of pharmacy talents in local colleges.

Objective To establish the evaluation index system on maternal health seeking behavior with Delphi method.Methods Based on Andersen health service utilization models,literature analysis was used to establish evaluation index system on maternal health seeking behavior,then Delphi method was carried out to revise index system through two rounds questionnaire consulting from 24 experts.Results The confirmed index system of maternal health seeking behavior included 4 first-level index,12 second-level index and 57 third-level index.The average authority degree of experts were 0.869,and the coordination coefficients of expert in the total index were 0.195 and 0.166(P＜0.01).The weight coefficients of the indicators at first level were 0.1529,0.3403,0.2786 and 0.2281,respectively.Condusion The representativeness,authority degree and coordination of expert are good,and the tentatively established evaluation index system on maternal health seeking behavior is scientific and reasonable.

ObjectiveTo explore the influencing factors of health seeking behavior of delivery women in Guangdong province.MethodsStratified random sampling method was used,and 1491 delivery women from primary,secondary and tertiary hospitals were investigated with self-made maternal health seeking behavior questionnaire.Logistic regression analysis was used to analyze the impact of environmental factors and population characteristics on health seeking behavior.ResultsDelivery women with qualified health seeking behavior account for 83.4%.Present pregnancy was planned (OR=2.114),prenatal examination was needed when self-feeling good (OR=2.323),social medical insurance system was socialized medicine (OR=2.755) or medical insurance (OR=1.697),hospital level of secondary hospital (OR=1.568) or tertiary hospital (OR=1.800) were independent positive influencing factors of health seeking behavior.ConclusionThe qualified rate of health seeking behavior of delivery women in Guangdong province is low.Delivery women with the following characteristics of low educational level,low family income,uninsured,coming from rural area and delivery in primary hospital need to be guided scientifically at seeking for health.

Objective To evaluate the safety and efficacy of a domestic recombinant human tumor necrosis factor receptor type Ⅱ- IgG Fc fusion protein (rhTNFR-Fc)for the treatment of moderate to severe psoriasis vulgaris. Methods A multicenter, randomized, double blind, parallel-group, positive drug-controlled clinical trial was conducted. According to random numbers generated by a hierarchical segmentation method using the SAS 9.2 software, patients with moderate to severe psoriasis vulgaris were randomly divided into two groups to be injected with two kinds of domestic rhTNFR-Fc under the trade names of Anbainuo(test group)and Yisaipu(control group)respectively at a dose of 25 mg twice a week for 12 consecutive weeks. The primary endpoint was the proportion of patients achieving a 50%, 75% and 90% reduction in psoriasis area and severity index(PASI50, PASI75 and PASI90)at week 2, 6 and 12 after initiation of the treatment. Adverse reactions were also recorded. Statistical analysis was carried out by using the chi-square test, Fisher′s exact test, two-sample t-test, and noninferiority trials with the software SAS 9.2. Results A total of 180 patients were enrolled in this study from 5 centers, and 174 completed this trial, of whom, 88 were assigned to the test group and 86 to the control group. Analysis of the full analysis set (FAS)revealed no significant differences in PASI50(75.6%(68/90)vs. 82.2%(74/90), P > 0.05)or PASI75(51.1%(46/90)vs. 50.0%(45/90), P > 0.05) between the test group and control group, but a significant increase in PASI90 in the test group compared with the control group (30.0% (27/90)vs.16.7% (15/90), χ2 = 4.472, P < 0.05)at week 12. Drug-related adverse reactions included elevation of transaminases, leukopenia, upper respiratory infections, injection-site reactions, abnormalities in urine routine test and purified protein derivative (PPD)skin test results, etc. There was no significant difference between the two groups in the incidence rate of adverse reactions(χ2 = 0.188, P > 0.05), most of which were mild, and subsided spontaneously or after appropriate treatment. Conclusion The domestic rhTNFR-Fc (trade name:Anbainuo)25 mg twice a week for 12 weeks is effective and safe for the treatment of moderate to severe psoriasis——————————vulgaris.

BACKGROUND:There are many ways for surgical treatment of distal radius fractures. Both volar locking plates and Kirschner wires are common methods. Doctors have considerable flexibility in the choice of the ways of fixation, but both at home and abroad there is no comparison between the effects of the two operations for treating distal radius fractures. OBJECTIVE:To systematicaly review the differences in effectiveness and safety of volar locking plates versusKirschner wires for distal radial fracture. METHODS:Databases such as CBM, CNKI, VIP, PubMed and Cochrane Library were electronicaly searched.Chinese Journal of Orthopaedics,Chinese Journal of Orthopaedic Trauma,Chinese Journal of Trauma andJournal of Practical Orthopaedics were searched by hand. In strict accordance with inclusion and exclusion criteria, articles were screened. Methodological quality of included studies was evaluated according to Cochrane Handbook. Data were extracted, and then analyzed with RevMan 5.2 software. RESULTS AND CONCLUSION:Nine randomized controled trials were included. Meta-analysis results demonstrated that upper limb function scores were better in the volar locking plate group than in the Kirschner wire group [MD=-4.55(-7.89,-1.21),P=0.008] at 3 months of folow-up and [MD=-3.13(-6.08,-0.18),P=0.004] at 12 months. The incidence of infection was lower in the volar locking plate group than in the Kirschner wire group [OR= 0.42(0.23, 0.79),P=0.007]. No significant difference in incidence of complex regional pain syndrome [OR=0.28(0.05, 1.38),P=0.12], incidence of carpal tunnel syndrome [OR=0.75(0.20, 2.76),P=0.66] and tendon injury [OR= 1.66(0.51, 5.41),P=0.64] was detected between the volar locking plate group and Kirschner wire group. These results indicated that compared with the Kirschner wire, volar locking plate fixation for the repair of distal radial fracture is safe and effective. In the permission of economic circumstances, it is suggested that elder osteoporosis patients with distal radial fracture should receive plate fixation.