Objective: To investigate the factors related to the of disc displacement in temporomandibular joint disorder(TMD). Methods: The angles of disc anterior displacemen were measured on arthrography of temporomandibular joints in 90 patients with TMD, then the relationship between the angles and symptoms, signs, condyle positions, osteoarthrosis and mouth opening degree were analysed. Results: ①AOB angle in the patients with reducibility of anterior disk displacement(ADwR) was smaller than in those with non reducible anterior displacement (ADw/oR); ②Patients suffered from chronic ADw/oR had smaller degree of mouth opening and larger disc displacement than those with ADwR's. Conclusion: The disc anterior displacement and condyle displacement in glenoid fossa may be correlated with articular remodeling.Prolonging coursees may not always result in the changing of disc structures.

The molecularly imprinted separating medium with halloysite nanotubes as carrier, which were environmentally friendly natural silica substrate nano-materials, aspirin as template molecule and acrylamide as functional monomer was synthesized using reversible addition fragmentation chain transfer polymerization. The template molecule and monomer were bound to stable composite at 1: 2 using the method of ultraviolet spectroscopy combined with Lamber-Beer theory at molecular level. The morphology and adsorption capacity of imprinted material was studied with Fourier transform infrared spectrometer ( FT-IR ) , transmission electron microscope ( TEM) , static adsorption and selective adsorption. The experimental results showed that a good uniformity of imprinted layer with the thickness of 38 nm was coated steadily on the halloysite nanotubes surface. Compared with the conventional surface imprinted material and the material with silica gel as carrier, our molecularly imprinted material had the characteristics of high adsorption capacity and favorable imprinted effect. Its imprinted factor achieved to 3. 5. The molecularly imprinted material was applied for mimetic intestinal juice diffusion experiment. The experimental results indicated that the imprinted material release the aspirin for 12 h, which was 2 times for non imprinted material for only 6 h, demonstrating excellent drug release result, which provided basic data for potential applications of drug carrier.

OBJECTIVE:To study the pharmacokinetics of boanmycin and to make a clinical evaluation on which.METHODS:36patients with malignant tumor were subjected to the first stage of clinical study after injected intramuscular injection.with0.5～7.5mg/m 2 boanmycin.Of which,8patients were chosen as the subjects for the pharmacokinetic study by microbioassay.RESULTS:Boanmycin had little influence on the functions of heart,liver,kidney and lungs and which had no inhibitory action on bone marrow.After intramuscular injection with5.29～7.65mg/m 2 boanmycin,parameters of pharma?cokinetics in the patients were determined as the following:t 1/2? was(14.036?4.409)min,t 1/2? was(39.160?5.599)min,AUC was(14.697?1.826)(?g?min)/ml and CLs was(0.781?0.102)L/min.CONCLUSION:Serum clearance of boanmycin shows two-compartment model.

Objective To assess the clinical efficacy and adverse effect of pemetrexed-based chemotherapy as first-line treatment in elderly patients with advanced non-squamous non-small-cell lung cancer (NSCLC).Methods A total of 40 elderly patients with advanced non-squamous NSCLC confirmed by pathology were retrospective analyzed in the study,who received pemetrexed plus cisplatin (group A,n =18) or pemetrexed plus carboplatin (group B,n =22) as the first-line treatment.RECIST was used to assess the efficacy of the treatment and NCI-CTC AE version was used to describe adverse events.Results In the 40 patients,no one received complete response (CR),17 patients showed partial response (PR),16 had stable disease (SD),7 had progress disease (PD),the objective response rate (ORR) was 42.5 ％ (17/40) and the disease control rate (DCR) was 82.5 ％ (33/40).The median progression-free survival (PFS) time was 5.3 months.1 year suvival rate was 63.2 ％ (24/38).In further subgroup analyses,the ORR,DCR,PFS and 1 year suvival rate in group A were higher than those in group B,but they had no statistically significant difference (P ＞ 0.05).The drug-related adverse events were myelosuppression,gastrointestinal response,most of which were grade 1 to 2.Conclusion Pemetrexed combined with cisplatin or carboplatin may be recommended as first-line chemotherapy for elderly patients with advanced non-squamous NSCLC because of its safety and efficacy.

Objective To investigate the values of serum vascular endothelial growth factor (VEGF) ,carcinoembryonic antigen (CEA) ,carbohydrate antigen 19-9 (CA19-9) and ferritin (SF) determination in assessing the efficacy of chemotherapy in patients with advanced gastric cancer .Methods Wedetermined the concentrations of serum VEGF ,CEA ,CA19-9 and SF for 85 patients with advanced gastric cancer ,before and after 1 cycles of chemotherapy and evaluated the the effect of chemotherapy after 2 cycle of chemotherapy .Results In effective group ,serum concentrations of VEGF ,CEA ,CA19-9 and SF significantly decreased after chem-otherapy cycle(P< 0 .05) ,serum VEGF and CEA concentrations significantly increased in progress group (P< 0 .05) ,serum VEGF ,CEA ,CA19-9 and SF concentrations in stable group and serum CA19-9 and SF concentrations in progress group did not change significantly(P> 0 .05) ,compared with those before chemotherapy cycle .Multiple regression analysis showed that serum CEA ,VEGF ,CA19-9 concentration changes correlated with chemotherapy efficiency ,while serum SF didn′t(t=1 .58 ,P=0 .119) . Conclusion Serum CEA ,VEGF ,CA19-9 concentration changes associated with gastric cancer chemotherapy efficiency ,which help predict the efficiency of chemotherapy .

Objective To investigate the combined detection of serum vascular endothelial growth factor (VEGF),squamous cell carcinoma antigen (SCC-Ag)and cytokeratin 19 fragment (CYFRA21-1)value in assessing the efficacy of chemotherapy in patients with advanced squamous cell carcinoma of the lung.Methods 60 cases of lung squamous cell carcinoma patients in January 2011 between June 2013 to be admitted to hospital were treated with gemcitabine plus cisplatin or carboplatin chemotherapy.Detected the levels of serum VEGF,SCC-Ag and CYFRA21-1 expression in 60 cases before and after 1 cycle of chemotherapy in patients using ELISA and immunoradiometric assay,and evaluated the efficacy evaluation with reference to RECIST criteria after 2 cycle of chemotherapy.Results Effective group serum VEGF and CYFRA21-1 levels were 413± 114 pg/ml and 14.7±9.6 ng/ml;serum VEGF and CYFRA21-1 levels after one cycle of chemotherapy were 272±131 pg/ml and 10.8±7.1 ng/ml,which decreased after chemotherapy (P<0.01).Progress group serum VEGF and CYFRA21-1 levels were 472±207 pg/ml and 18.9±17.6 ng/ml;serum VEGF and CYFRA21-1 levels after one cycle of chemotherapy were 537±219 pg/ml and 21.5±20.2 ng/ml,which increased after chemotherapy (P<0.01).Stable group serum VEGF CYFRA21-1 levels and were 419±246 pg/ml and 17.0±12.9 ng/ml;serum VEGF and CYFRA21-1 levels after one cycle of chemotherapy were 421±252 pg/ml and 16.8±11.7 ng/ml,which had no changes before and after treatment (P>0.05). Serum SCC-Ag levels before and after each treatment group difference was not statistically significant (P>0.05).Multiple regression analysis showed that serum VEGF,CYFRA2 1-1 levels and the efficacy of lung squamous were related changed (t=5.86,P<0.001;t=2.26,P=0.027),and there was no significant correlation between SCC-Ag levels changes and the effect of chemotherapy (t=1.52,P=0.133).Conclusion Serum VEGF and CYFRA21-1 expression level changes associat-ed with squamous cell carcinoma of the lung chemotherapy effect,which can advance understanding of the effect of chemo-therapy,combined with advanced squamous cell carcinoma detection of serum VEGF and chemotherapy assessment CY-FRA2 1-1 has a certain reference value.

Objective To analyse the problems presented in external quality assessment (EQA)for blood cytomorphology and propose measures for improvement.Methods Statistical analysis was performed on EQA results for blood cytomorphology from 2011 to 2013 in Shaanxi Province,including general information of participant laboratories,coincident rate,and reported incorrect results.EQA for blood cytomorphology was held two times every year in Shaanxi province,with ten pictures inclu-ding bone marrow and peripheral blood smear each time.The compact disc including twenty pictures was given to partici-pants by EMS.Participants reported two EQA results in April and September each year.The center statisticed the EQA re-sults and provided the EQA reports to every participants in June and November.Results Participating laboratories increased from 76 in 2011 to 163 in 2013.The ratio of laboratories with the coincidence rate≥80% was 80%,47%,44%,55%,77%and 96% respectively.The number for single cell with the coincidence rate≥80% was 38.The coincidence rate of peripheral blood cells was higher than that of the bone marrow on the whole.Causes of incorrect results included cell lines’misclassifi-cation,growth stage’s misclassification,insufficient identification of abnormal cytomorphology,and so on.Conclusion The identification of blood cytomorphology was unbalanced in different leveled hospitals in Shaanxi Province.To develop EQA of blood cytomorphology definitely has a positive role in improving the experimenters’skill of identifying cytomorphology.

OBJECTIVE To study the methods and curative effects of reconstruction of oropharyngeal defects after resection of tonsillar cancer. METHODS Nineteen patients with tonsillar cancer underwent operation. The choice of surgical procedure was decided on the size of the lesions. The tumor was resected through the hyoid approach and mandibular swing approach. Surgical defects were repaired immediately with tongue flap, temporalis myofascial flap, pectoralis major myocutaneous flap. RESULTS The functions of respiration, chewing, deglutition, and speech were restored satisfied in all patients. Partial necrosis of the pectoralis major myocutaneous flap occurred in one patient, and mild difficulty of open mouth in 3 patients after repaired with temporalis myofascial flap. CONCLUSION Choosing what is optimum from multiple feasible surgical methods is prerequisite for better oropharyngeal function and quality of life in patients with tonsillar cancer.

Objective To investigate the feasibility of amplitude of intraoperative nerve action potentials (NAP) for early quantitative diagnosis of peripheral nerve injury. Methods The sciatic nerve injury model were established in 16 rabbits. Intraoperative NAP were recorded after 4 weeks. According to amplitude of NAP, the injuried nerve were divided into 3 groups: NAP ＜ 100 μV in A group, 100 μV ≤NAP ＜ 500 μV in B group, NAP ≥ 500 μV in C group. Nerve specimen 1cm distal to injuried point were resected that received glycine silver stain and image analysis including number, diameter and cross section area of regenerative axons. Footprint parameter and ulcer area were measured and contrasted between each two groups. Results The number, diameter and cross section area of A group regenerative axons have significant difference with B and C group, no significant difference between B and C group; Footprint parameter and ulcer area have significant difference in each two groups. Conclusion Amplitude of intraoperative NAP can be a quantitative criteria to diagnose the degree of peripheral nerve injury that provides experiment evidence for guide intraoperative decision-making in clinical practice.

Objective To investigate immunological dysfunction of intestine mucosa barrier in a rat model of sepsis. Method Sixty Sprague-Dawley rats were assigned randomly(random number) into sepsis group (n = 45)and control group (n = 15). The animals in sepsis group were subjected to cecal ligation and puncture (CLP), whereas rats of control group underwent a sham surgery. The ileac mucosa and segments were harvested 3 h, 6 h and 12 hours after CLP, and the blood samples were collected. Pathological changes, protein levels of defensin-5 (RD-5) and trefoil factor-3(TFF_3) mRNA, lymphocytes apoptosis in the intestinal mucosa were determined. In an additional experiment, the gut-origin bacterial DNA in blood was detected. Results In the septic animals, in-testinal mucosa showed marked injury with loss of ileal villi, desquamation of epithelium, detachment of the lamina propria, hemorrhage and ulceration. Compared with control, the expression of TFF_3 mRNA and level of RD-5 pro-tein were decreased and the mucosal lymphocyte apoptosis increased (P < 0.05) in sepsis group. Compared with control group, the significant differences in RD-5 and TFF_3 mRNA appeared 3 hours after CLP and those differ-ences were progressively increased in 6 hours and 12 hours after CLP in sepsis group (P < 0.05, F of RD-5 = 11. 76, F of TFF_3 = 16.86 and F of apoptosis = 122.52). In addition, the gut-origin bacterial DNA in plasma de-tected was positive in all sepsis animals. Conclusions It suggests that immunological function of intestinal mucosa is impaired in septic rats and further worsened following the course of sepsis.