To investigate the inhibitory effects of siRNA expression vector on proto-oncogene Pokemon expression in SW480 cells and to provide experimental basis for further research about the biological function of Pokemon.siRNA expression vectors were constructed to express a short hairpin RNA against Pokemon.The recombinants were transfected into SW480 cells with liposome.Cellular morphology and transfection efficiency were observed.The expression of Pokemon were checked by real-time fluorescence quantitative PCR and Western blot.MTT assay was used to detect the effect of siRNA on the growth of SW480 cells and Fluorescence Activated Cell Sorter was applied to study cell apoptosis of SW480 cells.The transfection efficiency was about 36% and the cellular morphology changed greatly at 48h after transfection.siRNA expression vectors could specifically reduce the expression of Pokemon mRNA and protein in SW480 cells.Compared with negative control,the inhibition ratio of Pokemon mRNA expression was 34.2% and 67.7%,in 24th hour and 48th hour,the inhibition ratio of Pokemon protein was 48.3% and 73.6%,in 48th and 72th hour,respectively.Transfection with Pokemon siRNA expression vectors could inhibit cell growth and induce cell apoptosis of SW480 cells.siRNA expression vectors were successfully established that could effectively inhibit the expression of Pokemon in SW480 cells.Pokemon gene silencing could decrease growth and increase apoptosis of SW480 cells.

AIM: To observe the clinical efficacy of adjunctive intravitreous injection with Lucentis for the treatment of neovascular glaucoma ( NVG) .
METHODS:The retrospective case series study included 25 eyes of 25 patients who underwentintravitreous injection with Lucentis. Patients firstly received an intravitreous injection with Lucentis (0. 5mg/0. 05mL), after the regression of neovascularization of the iris, patients accepted different surgical treatments according to different etiopathogenesis condition. Iris, chamber angle neovascularization condition, intraocular pressure, and visual acuity were observed postoperatively. The follow-up duration was 3mo.
RESULTS:After 3-7d of intravitreous Lucentis injecting, iris and chamber angle neovascularization was totally faded in 20 cases (20 eyes) and was not completely faded in 5 cases ( 5 eyes ) . Additional treatments were compound trabeculectomy ( 14 cases, 14 eyes ) , vitrectomy ( 4 cases, 4 eyes ) . The patients' mean intraocular pressure was 43. 42 ± 10. 99mmHg before treatment, which decreased rapidly when they came out of the hospital (14. 26±7. 64mmHg, P<0. 05) and stabilized during the follow-up 3mo (18. 76±5. 96mmHg, P<0. 05). Follow-up at 3mo, visual acuity improved or remained in 20 cases ( 20 eyes ) and decreased in 5 cases ( 5 eyes ) . The complete success, qualified success and failure were 21 eyes, 3 eyes and 1 eye, respectively.
CONCLUSION:Intravitreous injection with Lucentis can be used as an assisted treatment of NVG. According to different etiopathogenesis condition, it is an effective treatment to combine with other treatment methods for NVG.

Object To develop an improved RP-HPLC method for determining ferulic acid in the human serum. Methods The determination was carried on RP-HPLC, using Kromasil-C 18column, methanol-water-acetic acid (36.4∶63∶0.6) as mobile phase with a flow rate of 1.0 mL/min and at the detection wavelength of 322 nm, and p-hydroxybenzaldehyde was used as internal standard. The serum sample was deproteinized with acetonitrile to extract ferulic acid. Results The calibration curve showed good linearity over the range of 9.94-159.04 ng/mL (r=0.992 5). RSD was less than 10% within day and day-to-day, the average recovery was 99.77% and the minimal concentration in serum was 5 ng/mL. Conclusion This method, which is simple, rapid, sensitive, reproducible and low toxic, is appropriate for the quantitative determination of ferulic acid in the human serum.

AIM:To discuss the related factors that affected the stability of posterior corneal surface after laser in situ keratomileusis ( LASIK) .
METHODS:About 64 patients (64 eyes) were enrolled. The correlation among the changes in posterior corneal surface 6 month after LASIK, surgery method, corneal flap thickness ( FT ) , ablation thickness ( AT ) , postoperative residual corneal stroma thickness ( RCST ) , preoperative thinnest corneal thickness ( CT ) , flap thickness/preoperative thinnest corneal thickness ( FT/CT ) , ablation thickness/preoperative thinnest corneal thickness ( AT/CT) , postoperative residual corneal stroma thickness/preoperative thinnest corneal thickness ( RCST/CT) , anterior and posterior preoperative corneal height, the difference of the forward shift in posterior corneal surface ( diff value ) of preoperative and preoperative intraocular pressure were analyzed.
RESULTS: The changes of diff value between preoperative and postoperative were related with diopter (r=0.419, P=0.014), AT (r=0.394, P=0.023), AT/CT (r=0.501, P=0.004), Diff value of preoperative (r=0.501, P=0. 004), RCST (r=-0. 385, P=0. 033) and RCST/CT (r=-0. 401, P=0. 025). The changes of height value from posterior corneal surface between preoperative and postoperative were related with diopter (r=0. 520, P=0. 002), AT (r=0.504, P=0. 003), AT/CT (r=0. 442, P=0. 013), Diff value of preoperative (r=0. 624, P=0. 000) and RCST/CT (r=-0. 394, P=0. 028).
CONCLUSION: AT, RCST, AT/CT, RCST/CT and diff value of preoperative should be the key index that predicted the stability of posterior corneal surface after LASIK,the further research will give the range of safety value.

Objective To investigate the effects of lipopolysaccharide (LPS) on the expressions of sodium taurocholate co-transporting polypeptide (Ntcp) and bile salt export pump (Bsep),as well as the liver function markers in the serum including total bilirubin (TBIL),total bile acids (TBA),alanine aminotransferase (ALT),aspartate aminotransferase (AST) in mice.Methods One hundred and twenty-eight C57BL/6 mice were intra-peritoneally injected with different doses of 5,10,20 or 40 mg/kg LPS (n =24),respectively.No treatment or treated with 0.9％ NaC1 in mice as controls.Serum TBIL,TBA,ALT and AST levels were measured at 24 h,48 h and 72 h after LPS injection in each group.The mRNA expressions of Ntcp and Bsep were detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR).The liver histological sections were stained with haematoxylin and eosin (H&E).Results The Ntcp and Bsep mRNA expressions in mice liver were significantly lower in livers of LPS-treated mice within 24-72 h compared with control group,and the lowest level was reached at 24 h in a dose-dependent manner.And the relative expressions of Ntcp mRNA and Bsep mRNA were (0.64 ± 0.02),(0.53 ± 0.14),(0.25±0.09),(0.15±0.07)and (0.74±0.12),(0.58±0.11),(0.41±0.09),(0.27 ± ± 0.11) in livers of mice injected with LPS in the different doses of 5,10,20,40 mg/kg,respectively.In addition,serum levels of TBIL,TBA,ALT,and AST were significantly increased in mice of LPS-treated group compared with control group,particularly within 24 h after LPS treatment.Serum levels of TBIL,TBA,ALT,and AST were significantly decreased in mice of 40 mg/kg LPS-treated 72 h group compared with 24 h group presenting them with (1.29 ± 0.25) μ mol/L vs.(1.71 ± 0.22) μ moL/L,(6.97 ± 0.98) μmol/Lvs.(8.96±1.01) μmol/L,(120.17±21.08) U/L vs.(179.22±16.57) U/L,(360.34 ±35.31) U/L vs.(510.97 ± 34.70) U/L,respectively.Furthermore,histological changes in liver depend on dose and the course of LPS treatment.Cytoplasm rarefaction and inflammatory cells infiltration were detected at 24 h after treatment with 5 or 10 mg/kg LPS.Acidophilic and vacuolar degeneration,neutrophils infiltration in the hepatic sinusoid and portal area,the proliferation of bile ductulus were observed at 48 h,72 h after treatment with 5 or 10 mg/kg LPS.In the 20 or 40 mg/kg LPS treatment groups,focal necrosis,infiltration with inflammatory cells,proliferation of bile ductulus and expansion of duct were observed at 24 h,48 h and 72 h after LPS treatment.Conclusions LPS decreases the mRNA expressions of Ntcp and Bsep in a dose dependent manner in mice,contributing to mechanism of liver injury induced by endotoxin.

Objective: To summarize the typical experiences and practices based on the quality evaluation of medical consumables in foreign countries and the practice of drug bidding in China,and to explore the establishment of a bidding grouping scheme for medical consumables in China. Methods: Using literature analysis and evaluation method of combing foreign countries typical measures of medical consumables quality assessment,this paper summa-rized the construction of index system of bidding in China Pharmaceutical Group, and used simple statistical data to reflect the present policy of China's medical supplies such as lack of relevant policies,different levels of quality etc.. Results:There are many problems in the quality evaluation of medical consumables in China. However, the typical measures of extraterritorial quality evaluation and the practice of pharmaceutical bidding in China provide a solid theo-retical and practical basis for the establishment of medical consumable supplies bidding grouping. Conclusion:Estab-lishing bidding grouping scheme is necessary in the Chinese Medical supplies context. Based on a clear difference be-tween medical supplies and medicines,and according to the"three stage"our conceptualization gradually improved. On the basis of the existing data and practical situation,the establishment of scientific selection index bidding group division standard,has been in the exploration of the formation of China's medical supplies bidding grouping scheme.

Objective: To compare the efficacy of different treatment protocols in treating transient synovitis of the hip (TSH) in children and to optimize the clinical treatment strategy for this condition. Methods: Ninety kids with TSH were divided into a control group, a chiropractic group and a chiropractic plus foot bath group using the random number table method, with 30 cases in each group. The control group was treated with conventional traction; the chiropractic group was given chiropractic treatment based on the control group; the chiropractic plus foot bath group was given Chinese medicine foot bath based on the chiropractic group. Traction and foot bath were conducted once daily while chiropractic was done once every other day, all with 14 d as a treatment course for a total of two courses. Changes in the visual analog scale (VAS) score and range of motion (ROM) of the hip joint in the three groups were observed, and the efficacy was compared. Results: The total effective rate was 93.3％ in the chiropractic plus foot bath group, versus 76.7％ in the chiropractic group and 66.7％ in the control group, and the total effective rate was notably higher in the chiropractic plus foot bath group than in the other two groups (both P<0.05). Respectively after the first and second treatment course, the VAS score decreased significantly in each of the three groups compared with that before treatment (all P<0.01), and the ROM of the hip joint in flexion increased significantly (all P<0.01). After two treatment courses, the VAS score was lower in the chiropractic plus foot bath group than in the other two groups (both P<0.05), and its ROM of the hip joint in flexion was larger than that in the other two groups (both P<0.05). Conclusion: Based on traction, chiropractic plus Chinese medicine foot bath can effectively reduce pain and improve motor function of the hip joint in treating TSH.

Objective To clarify the role of the virtual reality (VR)in the training of trans-femoral cerebral angiography for novices without any experience of intravascular manipulation. Methods Twenty-four novices without experiences of intravascular manipulation were divided into 2 groups (VR group or control group)with random pair method concerning the age,gender and subjects. The par-ticipants in control group were trained in routine manners while those in VR group practiced on a simulator and subsequently participated in real angiography once as assistants. Real angiography tests were performed for all participants after the training session and additional angiography tests were per-formed for VR group just after the stimulation session on the simulator. Real angiography tests were supervised and scored according to a modified rating scale by neuroradiological experts who were blinded to the novices' training procedures. Difference between the real test performance of the two groups were compared by pared-samples t test,while the correlation between the performance of the real tests and simulator tests of VR group was proved by Pearson correlation analysis. P<0.05 was con-sidered statistically significant. Results The mean scores of VR group were (27.6±3.6)and (26.4± 3.8)in the tests on simulator and real angiography tests respectively,while score of control group was (21.2±3.4)in the real angiography tests. A positive correlation was revealed in VR group between performance on the simulator and that on real patients (r=0.825,P=0.001). Real performance of the VR group was significantly better than that of control group (P=0.010). Conclusions Virtual reality could ensure transfer of acquired endovascular skills from simulators to patients so as to become a valid tool for novices to improve the interventional techniques in tranfemoral cerebral angiography.

Objective To confirm the connotation, constitution and classification of the stakeholders in public hospital. Methods The stakeholders of public hospital were proposed through the brainstorm method and literature search. On this basis, the expert consultation scale was developed by using the score-based approach for reference The stakeholders of public hospital were confirmed and classified through two-round expert consultation. Results The research confirms 16 stakeholders of public hospital on the 80% level of support ratio by experts. There were 10 core stakeholders, 5 latent stakeholders and 1 marginal stakeholder. Conclusion Appropriate stakeholder management strategy should be taken for different types of stakeholders.

Objective To explore the correlation between anaplastic lymphoma kinase (ALK) fusion gene detected by immunohistochemistry (IHC) and reverse transcription-polymerase chain reaction (RT-PCR) in non-small cell lung cancer. Methods The ALK fusion protein/gene in 71 patients of NSCLC which was detected both by IHC (1A4/1H7) and RT-PCR were retrospective studies, and the 2 methods were compared. Results Among the 71 NSCLC patients, the ALK fusion protein positive was in 21 cases and negative was in 50 cases by IHC detected, while the ALK fusion gene positive was in 12 cases and negative was in 59 cases by RT-PCR. The ALK fusion genes detected by RT-PCR were all negative when IHC negative and IHC 1+. All patients with IHC 2+ and IHC 3+ were confirmed ALK fusion genes positive with RT-PCR. The positive rate of ALK fusion protein detected by IHC in large surgical specimens was 28.95%(11/38), and the positive rate of ALK fusion protein detected by IHC in small biopsy specimen was 30.30%(10/33). The positive rate of ALK fusion gene detected by RT-PCR in large surgical specimens was 18.42%(7/38), and the positive rate of ALK fusion gene detected by RT-PCR in small biopsy specimen was 15.15% (5/33). Conclusions Although the ALK fusion protein detected by IHC may have certain false positive, IHC is highly consistent with RT-PCR in IHC 2+and IHC 3+ cases. The combination of IHC and RT-PCR can be used to ALK fusion gene positive NSCLC screening and diagnosis. The small biopsy specimen is also good material for ALK detection, when the surgical specimen can not be got from patients.