Objective The finite element model of the mandible of the miniature pig was constructed to explore the strain and stress changes of the mandible during loading, which laid the foundation for the analysis of the biomechanical properties of the subsequently developed mandibular external fixation holder. Methods We randomly selected a healthy Bama miniature pig, weighing 20kg, and made a CT scan to its head for obtaining the DICOM data. The DICOM data were imported into the software Mimics17.0 for 3D image reconstruction, and output the STL format. Then we imported the STL format into Geomagic Studio software to make data preprocessing, and got general curved surface file in IGES format. Then we imported the IGES format into ICEM software to carry on the grid, output the UNS grid file, then we imported it into the Workbench software for setting material attributes and definition of boundary conditions, and data post-processing. Applying this model, we simulated the occlusal force and loaded 9.8-392 N vertically downward on the left mandibular first molar, then calculating the strain and stress changes of the mandible and testing the stability of the model. Results Using medical digital image and three-dimensional finite element analysis software, we had successfully established an ideal mandibular model of miniature pig. When loading on the mandible, the results showed that there was no continuous interruption and the data generated were reasonable. Conclusions The three-dimensional finite element model of the mandible of the miniature pig can effectively simulate the strain and stress changes of the mandible, and provide a simulation mechanical analysis for the reasonable design of the external fixationholder .

One of the major responsibilities for medical students is to save lives and to popularize emergency medical treatment knowledge for the masses of society.Based on research analysis,systemic training of cardiopulmonary resuscitation program including lectures,simulation education and social practice were performed for medical students.After practice activities,these students could proficiently apply the basic knowledge and skills of cardiopulmonary resuscitation in practical work and spread what they have learned to the public.Furthermore the program could improve students' abilities in social practice and team spirit and it is of great social significance.

Objective To investigate the risk factors and prevention for shivering after intrathecal anesthesia.Methods Atotal of 1008 patients which received intrathecal anesthesia were visited after operation.Patient gender,age,ASA status,type of surgery,anesthesia method,preventive medications,local anesthetics and postanesthetic shivering were recorded.Results Age was negatively correlated with shivering (B =-0.019,P ＜ 0.05 ).Type of surgery,anesthesia method was correlated with shivering,too( P ＜ 0.05).The likelihood of shivering after combined spinal epidural anesthesia was 1.851 times than spinal anesthesia.Preventive medications were correlated with shivering(P ＜ 0.05 ).The likelihood of shivering after prophylactic use of ondansetron plus dexamethasone was 0.196 times than that without prophylactic medication.Selection of local anesthetics were correlated with shivering (B =0.443,P ＜ 0.05 ).The likelihood of shivering after use of bupivacaine was 1.558 times than that use of ropivacaine.Conclusions Risk factors for shivering after intrathecal anesthesia are patient age,type of surgery,anesthesia method,the selection of local anesthetics.Prophylactic use of dexamethasone plus ondansetron can be an effective prevention of shivering after intrathecal anesthesia.

Objective To evaluate the effectiveness of discharge planning in patients after total laryngectomy. Methods One hundred and four patients were randomly divided into the intervention group and the control group, there were 52 cases in each group. The patients in the control group were received routine nursing, while the patients in the intervention group were received discharge planning based on routine nursing. The patients'days of hospitalization, scores of the Exercise of Self-care Agency Scale (ESCA) at discharge and 4 weeks after discharge, scores of University of Washington Quality of Life Questionnaire (UW-QOL) at 4 weeks after discharge and re-admission rate were compared between the two groups. Results The ESCA scores in the intervention group at discharge (108.62 ± 11.23) and 4 weeks after discharge (116.35 ± 12.08) were significantly higher than those of the control group at discharge (96.16±10.34) and 4 weeks after discharge (105.20±10.76) respectively (t=5.886, 4.970, P<0.05), and the UW-QOL score in the intervention group (810.56±98.25) was significantly higher than that of the control group (687.32±96.74) at 4 weeks after discharge (t=6.445, P<0.05). No significant difference in the days of hospitalization was found between the intervention group (15.27 ± 3.33) and the control group (16.60 ± 3.97) (P>0.05). The re-admission rate in the intervention group (2/52,3.85%) was significantly lower than that of the control group (8/52,15.38%) (χ2=3.983, P<0.05). Conclusions Discharge planning can improve the ability of self-care and quality of life in patients after total laryngectomy, and reduce the re-admission to hospital.

Under the condition of information society, we should cultivate students'!ability of infor-mation literacy and innovation. Based on the early investigation of medical students'!information ability and scientific research quality, we carried on a staged and systematic subject-oriented information literacy training for post-graduate students in specialty of anesthesiology through such measures as enriching infor-mation resources, strengthening students'!awareness of information, the implementation of the supervisor group system or double tutor system, and other measures, which strengthened the graduate students' ! independent study ability and scientific research quality. The related practice can provide reference for the development of information literacy education in colleges and universities.

To explore the regulation of eIF4E, we screened the protein interacting with eIF4E from human cDNA library by using yeast two-hybrid system. Several clones interacting with eIF4E were identified. One of them was homologous with HUWE1 (HECT, UBA and WWE domain containing 1, also named as ARF-BP1, HECTH9 or HUWE1). Cell co-immunoprecipitation showed that eIF4E could bind to HUWE1 in mammalian cells. We also found that HUWE1 bearing the HECT domain is necessary for its association with eIF4E.
Animals ; Eukaryotic Initiation Factor-4E ; metabolism ; Humans ; Ubiquitin-Protein Ligases ; metabolism

Objective To observe the relationship between serum level of H-FABP before percutaneous coronary intervention (PCI) and prognosis in patients with ST-segment elevation myocardial infarction (STEMI). Methods A total of 104 cases were recruited in this study. PCI was performed 12 h after onset. The concentration of H-FABP was detected before operation. Gensini score system was used to calculate the integral of all patients after coronary angiography. According to Gensini score, patients were divided into three groups, 34 cases in group A (8≤Gensini scores<41), 34 cases in group B (41≤Gensini scores<64) and 36 cases in group C (Gensini scores≥64). Indicators were analyzed statistically including systolic blood pressure (SBP), diastolic blood pressure (DBP), smoking history, H-FABP, left ventricular ejection fraction (LVEF), total cholesterol (TC), triglycerides (TG), high density lipoprotein (HDL-C), low density lipoprotein (LDL-C), fasting blood sugar, diabetes (DM) and hypertension. The patients were followed up for 12 months after operation. According to the occurrence of major adverse cardiovascular events (MACE), patients were divided into MACE group and non-MACE group. The related factors of two groups were statistically analyzed. The multivariate Logistic regression analysis was used to screen the risk factors of MACE for patients with STEMI after emergency PCI. Results There is a gradually increasing tendency in total cholesterol levels among three A, B and C groups (P<0.05). LVEF values were lower in B group and C group than that of A group (P<0.05). There were no significant differences in levels of SBP, DBP, H-FABP, TG, HDL-C, LDL-C, fasting plasma glucose and smoking history, DM, and hypertension between three groups (P>0.05). In 12-month follow-up, the proportion of STEM combined with DM, the time from onset to PCI, the level of TC, the level of H-FABP before operation and Gensini score were significantly higher in MACE group than those of non-MACE group (P<0.05). Logistic regression analysis showed that STEM combined with DM, higher serum level of H-FABP before operation were risk factors of MACE in 12-month after operation (P<0.05). Conclusion For patients with acute STEM combined with diabetes and elevated preoperative serum level of H-FABP, be alert to the occurrence of MACE in 12-month after PCI.

Objective To investigate the effect of intraperitoneal injection of thalidomide on pain behaviors in a mouse model of bone cancer pain. Methods 36 male C3H/HeJ mice were divided randomly into tumor group (n= 18) and sham group (n= 18) ,six mice from each group were chosen to examine the time course of changes in behavior after tumor cells inoculated to the bone. 2 × 105 osteosarcoma NCTC 2472 cells were implanted into the intramedullary space of the right femurs of mice to induce ongoing bone cancer related pain behaviors. The sham group was inoculated by α-MEM without any cells. On the day before inoculation,the tumor mice were divided randomly into tumor + thalidomide group and tumor + vehicle group. The sham group mice were further divided randomly into sham + thalidomide group and sham + vehicle group. Pain ethology indexes such as paw withdrawal mechanical threshold (PWMT) and paw withdrawal thermal latency (PWTL) were observed on 1 d before inoculation and on 3 d ,5 d ,7 d, 10 d, 14 d after inoculation. Results ( 1 ) At day 7 after the operation, compared with sham mice ( 1. 70 ± 0. 33 ) g, PWMT of tumor mice decreased to ( 1.07 ± 0. 30) g (P ＜ 0. 05 ). At day 10, PWTL shortened to ( 12.60 ± 1.69 ) s (P ＜ 0. 05 ) compared with sham mice ( 17.70 ± 1.54 ) s. And the pain behaviors of tumor mice were aggravated along with the development of cancer pain. (2) At day 7 after the operation, compared with tumor + vehicle group ( 1. 07 ± 0.39 ) g, PWMT of tumor + thalidomide group increased to ( 1. 53 ± 0. 39 ) g (P ＜0.05). At day 10, PWTL extended to ( 16.48 ± 1.13 ) s compared with sham mice ( 12.64 ± 1. 56) s (P ＜0. 05 ). Conclusion Intraperitoneal injection of thalidomide can efficiently relieve mechanical hyperalgia and thermal hyperalgia in a mouse model of bone cancer pain.

Objective The aim of the study was to explore the difference between the expression of CDg7 in peripheral blood and bone marrow on acute myeloid leukemia (AML n=30). Methods A flow cytometric quantitative analysis of expression levels for CD87 was performed on fresh blast cells in peripheral blood and bone marrow from patients with acute myeloid leukaemia using CD87, monoclonal antibodies. Analysis the difference between the expression of CD87 using matched t -test. Results The values of CD87 expression in bone marrow of 14 M5 cases are from 9.47 %～80.32 %, and from 11.49 %～87.46 % in peripheral blood. The values of CD87, expression in bone marrow of 8 M4 cases are from 14.27 %～46.28 %,and from 14.79 %～47.19 % in peripheral blood. The values of CD87 expression in bone marrow of 6 M2 cases are from 4.67 %～34.26 %, and from 8.96 %～39.78 % in peripheral blood. The values of CDs, expression in bone marrow of 2 MI cases are from 3.56 %～7.69 %, and from 5.21 %～8.96 % in peripheral blood.The expression of CD87 in peripheral blood and bone marrow from patients with acute myeloid leukaemia had statistical difference (t =3.13, P<0.05). Conclusion The levels of CD87 expression had difference between peripheral blood and bone marrow. The level in peripheral blood was higher than bone marrow. So when we performed quantitative analysis of expression levels for CD87, peripheral blood instead of bone marrow was commended.

Objective To investigate the functional changes of brain spontaneous activity in patients with Alzheimer' s disease (AD) and amnestic mild cognitive impairment (aMCI) using resting-state functional magnetic resonance imaging (fMR1), and evaluate the potential value of fMRI marker in clinical diagnosis of AD and aMCI.Methods Twelve AD patients, 12 aMCI patients and 12 normal controls (NC) were assessed by the Minimum Mental State Examination (MMSE) and scanned using the resting-state fMRI.The fractional amplitude of low-frequency fluctuations (fALFF) method was employed to examine the changes of the brain spontaneous activity among the three groups.Results Significant between-group differences were found in the precuneus and the inferior parietal lobe.In the precuneus, the fALFF value in AD patients (mean ± SD : 1.11 ± 0.07) was significantly decreased as compared to NC (1.24 ± 0.11, t =2.89,P =0.012) and aMCI patients (1.34 ±0.17,t =3.49,P =0.004).The aMCI patients demonstrated numerically largest fALFF in the precuneus.In the inferior parietal lobe, the fALFF values in AD patients (0.96 ±0.07) were also significantly decreased as compared to NC (1.11 ±0.07 ,t =4.31 ,P =0.001) and aMCI patients (1.09 ± 0.08, t =3.44, P =0.004).Conclusions AD patients were mostly influenced in the specific regions in terms of brain spontaneous activity, while the aMCI patients showed a compensatory tendency in the precuneus.