Purpose To investigate the correlation of the expression of Cyclin D1 and BRAF ( V600E) mutation in papillary thyroid carcinoma ( PTC) and their clinical significance, and to analyze their role in the pathogenesis of PTC. Methods The expression of CK34βE12 and MC protein was detected by immunohistochemical EnVision method in 52 cases of PTC and 52 cases of thyroid benign lesions (25 cases of nodular goiters, 15 cases of Hashimoto’s thyroiditis, 12 cases of follicular adenoma), and the mutation status of BRAF gene protein in above specimens were detected by polymerase chain reaction and DNA sequencing. Expression of Cyclin D1 and BRAF (V600E) mutation in papillary thyroid carcinoma and their correlation clinicopathologic features were also analyzed. Results The positive rate of Cyclin D1 in 88 cases of PTC was 84. 6%,and the immunoreactivity score (4. 6 ± 2. 4), compared with thyroid be-nign lesions (1. 3 ± 1. 6), was statistically significant difference (t=8. 525, P<0. 01). Expression of Cyclin D1 was closely related with lymph node metastasis, capsular invasion, tumor stage Ⅲ+Ⅳ and BRAF (V600E) mutation (P<0. 05), but not related with age, gender, number and diameter of tumor nodules. In 52 cases of PTC BRAF gene mutation rate was 63. 5%, but in thyroid benign lesions mutation rate was 0, with significant difference (P<0. 01). The BRAF mutation is closely related with lymph node metastasis, capsular invasion and tumor stage Ⅲ+Ⅳ(P<0. 05), but not related with age, gender, number and diameter of tumor nodules. The expression of Cyclin D1 in BRAF (V600E) mutation group was stronger, the positive expression rate was significantly higher than that of wild group (100% vs 57. 9%), and expression of the mean score was higher than that of the wild group (5. 7 ± 1. 6 vs 4. 0 ± 2. 5);the comparison between the two groups showed statistical difference (t=2. 652, P<0. 05). Conclusions The expression of Cyclin D1 and BRAF (V600E) mutation are positively related, which are also closely related with the occurrence and development of PTC, and can be used as an index to predict the invasion and metastasis in PTC.

Objective To study how to finish radiography work satisfactorily under emergency situations. Methods Analyses and sum-up were performed from three aspects, including X -ray diagnostic vehicle, radiography and PTSD. Results The vehicle-mounted X-ray machine was kept good state during high strength utilization. 620 cases from the disaster area were examined and the diagnosing quality was better than usual. Conclusion Such aspects are very important for emergency application of vehicle-mounted X-ray machine as the daily maintenance of the machine, high technical level and proper mental intervention.

Objective To evaluate the effect of mitochondrial permeability transition pore (mPTP) in lipid emulsion-induced inversion of bupivacaine myocardiotoxicity in rats.Methods H9c2 cells were inoculated in 6-well plates at a density of 105 cells/ml, and were randomly divided into 4 groups (6 wells in each group, 2 ml/well) using a random number table: control group (group C) , bupivacaine group (group B) , lipid emusion + bupivacaine group (group LB) , and lipid emusion + bupivacaine + atractyloside group (group LBA).Phosphate buffer solution 100 μl was added to the culture medium in group C.In group B, bupivacaine was added to the culture medium with the final concentration of 1 mmol/L.In group LB, lipid emusion and bupivacaine were added to the culture medium with the final concentrations of 1％ and 1 mmol/L, respectively.In group LBA, lipid emusion, bupivacaine and atractyloside (an mPTP opener) were added to the culture medium with the final concentrations of 1％, 1 mmol/L and 30 μmol/L, respectively.All the cells were incubated for 24 h.After the end of incubation, the expression of Bcl-2, Bax, phosphorylated Bad (p-Bad) , caspase-3, activated caspase-3, caspase-9,activated caspase-9 and cytochrome c (Cyt c) was detected using Western blot.The expression of Bcl-2 mRNA, Bax mRNA, Bad mRNA, caspase-9 mRNA and Cyt c mRNA was detected using real-time reverse transcriptase polymerase chain reaction.The ratios of Bax/Bcl-2, activated caspase-3/caspase-3, activated caspase-9/caspase-9, and Bax mRNA/Bcl-2 mRNA were calculated.Results Compared with group C,the ratios of Bax/Bcl-2, activated caspase-3/caspase-3, activated caspase-9/caspase-9, and Bax mRNA/ Bcl-2 mRNA were significantly increased, the expression of p-Bad was down-regulated, and the expression of Cyt c, Bad mRNA, caspase-9 mRNA and Cyt c mRNA was up-regulated in group B (P＜0.05) , and no significant change was found in the parameters mentioned above in group LB (P＞0.05).Compared with group B, the ratios of Bax/Bcl-2, activated caspase-3/caspase-3, activated caspase-9/caspase-9, and Bax mRNA/Bcl-2 mRNA were significantly decreased, the expression of p-Bad was up-regulated, and the expression of Cyt c, Bad mRNA, caspase-9 mRNA and Cyt c mRNA was down-regulated in LB and LBA groups (P＜ 0.05).Compared with group LB, the ratios of Bax/Bcl-2, activated caspase-3/caspase-3, activated caspase-9/caspase-9, and Bax mRNA/Bcl-2 mRNA were significantly increased, the expression of p-Bad was down-regulated, and the expression of Cyt c, Bad mRNA, caspase-9 mRNA and Cyt c mRNA was up-regulated in group LBA (P ＜ 0.05).Conclusion The mechanism underlying lipid emulsioninduced inversion of bupivacaine myocardiotoxicity is related to inhibited mPTP opening in rats.

This paper analyzed medical dispute litigation from the view of game theory.The adoption of mediation strategy for both hospital and patient was the Pareto optimal of this model.The adoption of court decision for both hospital and patient was the Nash equilibrium and its overall benefit was the Pareto suboptimal of this model.The communication of patient's lawyer can prompt the reconciliation between hospital and patient.On the one hand,it let the hospital realize the responsibilities they should bear,on the other hand let patients be willing to make concessions on the basis of the original claims,and finally made the two sides reach a reconciliation agreement,thus to make conflict between hospital and patient end in litigation and the overall benefits maximize.

Objective:To obtain the high-efficiency expression of the biological active rabies virus nucleoprotein in the prokaryotic expression system.Methods:This experiment uses codon optimization technology to re-encode the nucleoprotein gene of rabies virus CTN-1 strain, artificially synthesize the full-length gene and clone it into pET-43.1a prokaryotic expression vector, induced expression in BL21 (DE3) strain of Escherichia coli( E. coli), and used Western blot to detect its reactogenicity. Results:The results showed that after induction, SDS-PAGE electrophoresis analysis showed that an obvious expression band appeared at a molecular weight of 50×10 3, which was consistent with the expected protein band size. Among them, the E. coli concentration A600 is about 0.5, and the expression yield is the highest (about 32.3%) when induced at 37℃ for 5 h. Nucleoprotein expression product is mainly inclusion body when it is expressed in large quantities. After purification by Ni 2+ chelating chromatography, the purity of the target protein can reach over 95%. The purified product was identified by Western blot and positively reacted with the sera of mice immunized with rabies vaccine, indicating that the prokaryotic expression of the CTN-1 strain nucleoprotein has biological activity. Conclusions:This experiment successfully established a high-efficiency expression method for the nucleoprotein of the CTN-1 strain in the prokaryotic expression system, and obtained high-purity target protein, which provides a basis for further clinical diagnosis and preparation of new vaccines.

Digital X-ray imaging technique has been developing rapidly in recent years, and makes it possible for people to be radiated by lower X-ray dose than before to get the images for diagnosis. Current development in 7 aspects about digital roentgenography is introduced in this article.

Objective To analyze the correlation factors affecting DSA picture quality and to investigate the DSA value and effectiveness in hepatic arteriography. Methods 36 cases with liver tumor were analyzed through femoral artery intubatton with Seldinger and had hepatic arteriography with RH catheter. Results In the 192 images of 36 cases,the percentage of first-rate image was 92.7%,the second-rate image (9/192) was 5.3%,the third-rate image (5/192) was 2%. Conclusion All of the second-rate images and the third-rate images which were handled with selective image postprocessing can improve picture quality and can reach diagnosis request.

Objective:To study feasibility of preparing artificial antigen by membrane coated with hapten-carrier.To compare the Emodin-BSA membrane antigen immunogenicity and specificity against the liquid antigen.Methods:Emodin-BSA-PVDF membrane was prepared by the method that BSA was coated on PVDF membrane and the BSA was coupled with Emodin-couplint agent derivative.Rats were immunized by subcutaneous implantation.The immunogenicity and antibody specificity were characterized using Emodin-CA or Chrysophanol-CA or Physcion-CA membrane immunoassay. Results: The immunogenicity of Emodin-BSA coated membrane antigen was higher than Emodin-BSA liquid antigen;the specificity for three anthraquinones was almost the same(P>0.05). Conclusion:Emodin antiserum generated using Emodin-BSA coated membrane antigen has a high immunogenicity and specificity to Emodin.The results show it is feasible that membrane coated with hapten-carrier is used as artificial antigen.

Objective: To investigate the effectiveness and safety of Huatan-Quzhuo decoction in combination with western medicine for the treatment of carotid atherosclerotic plaques. Methods: A total of 194 patients with carotid atherosclerosis were selected were randomly divided into two groups, 97 in each group. The control group was treated with simvastatin. The observation group was treated with Huatan-Quzhuo decoction on the basis of the control group. The serum levels of interleukin-1 (IL-1), tumor necrosis factor α (TNF-α), malondialdehyde (MDA), and superoxide dismutase (SOD) were observed before and after treatment in the two groups. The Sod, IMT, number of plaques, number of vulnerable plaques and area of plaques, carotid artery intima-media thickness (IMT), number of plaques, number of vulnerable plaques, and area of plaques were detected. Results: After treatment, the levels of TC, TG, and LDL-C in the observation group were significantly lower than those in the control group (t were 4.546, 6.712, 4.872, P<0.01). After treatment, the IMT (0.85 ± 0.11 mm vs. 1.08 ± 0.13 mm, t=13.302), number of plaques (0.74 ± 0.36 vs. 1.02 ± 0.42, t=4.985), number of vulnerable plaques (0.24 ± 0.25 vs. 0.41 ± 0.27, t=4.550), and plaque area (50.06 ± 9.73 mm² vs. 68.52 ± 11.24 mm², t=12.230) in the observation group were significantly lower than those in the control group (P<0.01). The levels of IL-1, TNF-α and MDA in the observation group were significantly lower than the control group (t were 13.089, 4.769, 10.442, P<0.01). The level of SOD was observation group was significantly higher than the control group (t=11.636, P<0.01). Conclusions The combination of Huatan-Quzhuo decoction and western medicine in the treatment of carotid artery atherosclerosis can regulate the level of blood lipids, improve the degree of atherosclerosis, reduce the degree of inflammation and oxidative stress.

Objective:To investigate the in vitro viability of rabies virus in tissues and body fluid samples. Methods:The viability of rabies virus in tissues and suspensions was analyzed by virus titer determination method, direct immunofluorescence, RT-PCR and laboratory techniques for virus isolation.Results:With the increase of temperature, the viability of rabies virus in brain tissues and suspensions decreased gradually. Rabies virus lost infectivity after 30 min at 56℃, but remained viable in tissues for 7 d at 37℃. The virus showed no viability after 1 h at pH9.6. The rabies virus in suspensions could be completely inactivated after the stimulation with ethanol at a final concentration above 30%, sodium hypochlorite above 500 mg/L or benzalkonium bromide above 100 mg/L for 3 min. It was found that 80% acetone had the strongest inactivation effect on rabies virus in tissues, and no virus could be isolated after soaking for 4 h.Conclusions:Rabies virus was not tolerant to high temperature and relatively stable in the environment with pH6.8-7.4. Common disinfectants could kill the virus. This study provided detailed data about the viability of rabies virus in vitro, which would be conducive to the prevention and control of rabies.