This paper introduced the current situation of cardiac interventional therapy and put forward the fol-lowing points that medical staffs should pay attention to:the patient's right to know, right to be informed, right of communication, right of privacy, and etc. On this basis, it is suggested to solve the ethical issues in cardiac inter-ventional therapy through the implementation of clinical pathway, effective communication, humanistic care, the construction of occupational ethics, strict feedback and supervision.

Objective To investigate the expression of Vav1 in gastric cancer(GC), and analyze its potential relevance to clinicopathological characteristics and prognostic significance in GC patients. Methods The mRNA expression level of Vav1 was detected by real-time quantitative PCR in GC cell lines (HGC-27,SGC7901 and MGC803) and normal gastric mucosa cell line (GES-1). In addition, the protein expression of Vav1 was analyzed by immunohistochemistry in formalin-fixed samples from 105 GC patients. The associations between clinical pathological features and Vav1 protein expression were evaluated in GC patients. Kaplan-Meier method and Cox regression analysis were used to analyze the related factors influencing the prognosis of GC. Results The mRNA expression levels of Vav1 were significantly higher in GC cell lines (HGC-27, SGC7901, MGC803) than those in normal gastric mucosa cell line (GES-1, P<0.05). The positive expression of Vav1 in GC tissues was correlated with diameter of tumor and lymph node metastasis (P<0.05). The univariate analysis showed that size of tumor, degree of differentiation, serosal invasion, lymph node metastasis and Vav1 expression were significantly related with prognosis of GC (P<0.05). Results of Cox regression showed that tumor invasion depth (HR=2.764, 95%CI 1.316-5.817, P=0.007), lymph node metastasis (HR=1.298, 95%CI 1.098-1.534, P=0.002) and Vav1 expression (HR=2.577, 95%CI 1.066-3.946, P=0.006) were the risk factors affecting prognosis of patients with gastric cancer. Conclusion Vav1 performs important role in the aggressiveness of GC, and Vav1 may serve as a novel prognostic factor in GC.

Objective:To investigate the expression of Cyclin D 1?p16?p27 and PCNA in glioma with different pathological classification, and to explore the correlationship among Cyclin D 1?p16?p27 and PCNA.Methods:Cyclin D 1?p16?p27 and PCNA protein expressions in 12 normal brain tissues and 58 glioma cases were examined by immunohistochemical staining and hemiquantity analysis.Results:With the increasing of glioma malignancy, the expression level of Cyclin D 1 protein increased gradually (P

Objective:To identify HLA-A2-restricted CTL epitope of breast cancer differentiation antigen NY-BR-1.Methods:The HLA-A2-restricted CTL epitope of breast cancer differentiation antigen NY-BR-1 is predicted by combination quantitative motif method and the molecular dynamics.The three epitope were assayed their affinity to HLA-A2.Results:The affinity to HLA-A2 of NY-BR-1_ 1043-1051 is a best.Conclusion:NY-BR-1_ 1043-1051 is a HLA-A2 restricted epitope.

Purpose To investigate the expression of c-myc and MDM2 protein in multiple myeloma (MM) and their correlation with clinical stage.Methods Immunohistochemical SP three-step method was used to detect the expression of MDM2 and c-myc protein in 60 cases of MM with different clinical stages and 10 cases of nontumorous bone marrow tissue.Results The positive rate of c-myc protein in MM and nontumorous bone marrow tissue were 71.7％ and 10.0％;the positive rate of MDM2 protein in two tissues were 80.0％ and 20.0％,respectively.The expression difference of two proteins between MM and nontumorous bone marrow tissue was statistically significant (P ＜ 0.05).The expression of c-myc and MDM2 protein was positively correlated with MM clinical ISS stage (P ＜ 0.05),but irrelevant with the age and gender.The expression of c-myc and MDM2 protein in MM was positively correlated (P ＜ 0.05).Conclusion The c-myc and MDM2 protein have a highly expression in MM,and it may be relative to the occurrence of MM and clinical stage.In the MM,c-myc and MDM2 protein may have synergetic functions and promote the development of tumor.

Objective To evaluate the changes of soft tissue and hard tissue in the correction of Class II division 1 malocclusion by functional appliance, and to investigate the correlation between these changes and the mechanism underlying the soft tissue profile changes. Methods A total of 32 cases of developing class II division 1 malocclusion were selected. They were in the spurt or pre-spurt phase of growth and development and treated with functional appliance, the molar relationship was corrected to either Class I or overcorrected Class I occlusal relationship. Soft tissue and hard tissue variables on the cephalograms were selected and analyzed. Firstly, paired t-tests were performed to compare the changes between before and after-treatment. Secondly, those variables that had statistically significant differences were selected and analyzed with the Pearson coefficient of correlation (r) between soft tissue and hard tissue changes. Results All variables had statistically significant differences between before and after treatment except for soft tissue facial angle and basic upper lip thickness, mandible plane angle and position of basic upper bone; Correlations between soft tissue and hard tissue changes were as follows: height of lower lip to Me' and S-Go (r=0.54); soft tissue chin thick and N-ANS (r=0.55); height of upper lip and ii/OLp (r=0.52); inferior sulcus to H-line and ii/OLp (r=0.60), pg/OLp, saggital relationship between upper-and lower-jaw (ss/OLp-pg/OLp) (r=0.47). Conclusion The changes of soft tissues profile results from the change of lower incisors' position, mandible' moving forward and its subsequent changes of facial heights and saggital relationship between upper-and lower-jaws.

Objective To probe into the application of vacuum sealing drainage (VSD) in flap with slender narrow pedicle and to observe the survival,the shaping of blood vessel,congested edema and the expression of CD34 in the flap,and to analyze the underlying mechanism of VSD on the flap survival.Methods 64 SD rats were randomly divided into 8 groups:4-hour group,8-hour group,1-day group,2-day group,3-day group,4-day group,and 6-day group.A flap was designed and put on either side of a rat's back.The both width and length of the flap were 0.8 cm and the pedicle sized in the diameter of 3.5 cm.Both sides of the flaps on the rats' backs were randomly arranged into control side and experimental side.VSD was fixed sideways to each group after the shaping of flaps.Each of the equipments was dismantled respectively in the corresponding time after the operation.Afterwards the color and swelling degree of the flaps were observed,a sample was cut and the flap survival area was measured altogether on the 7th day.Flap histology and the expression of CD34 were observed mainly through HE dyeing and immunohistochemistry.The statistical data were treated to figure out the flap survival rate and to determine whether statistical differences existed in the microvessel density (MVD).Results As the time of the negative pressure suction went on,the survival area of the experimental side flap was increasing day by day and came to the maximum on the third day (95±4)％,but no statistical difference was discerned between on the third day and on the sixth day (P＞0.05).As the time of the negative pressure suction went on,the MVD in the flap was also increasing.Statistical differences (P＜0.05) existed between the experimental side of the instant group,4-hour group and the 8-hour group and those of 3-day group,4-day group,and 6-day group.Conclusions The application of VSD can advance the survival of the flap,whose survival area can reach its maximum within 3 days under application.Besides,it can promote the increase of MVD in the flap.

Objective To investigate the effect of Smo siRNA on the aggressive capability of human esophageal carcinoma EC9706 cells.Methods EC9706 cells were transfected by Smo siRNA.The expressions of Smo and Glil protein in experimental and control groups were detected with immunocytochemistry.The expressions of Smo and Gli1 mRNA in experimental and control groups were detected with in situ hybridization.The change of aggressive capability in all groups was detected by Boyden chamber in vitro.Results Compared with control group,there was a significant decrease in the protein and mRNA levels of Smo and Gli1 in every specific siRNA transfection group with three different concentration (P ＜ 0.05).The aggressive capability of EC9706 cells was significantly weakened after the transfection (P ＜ 0.05).Conclusions Smo siRNA can inhibit the expressions of Smo and Gli1 genes in EC9706 cells,and can also weaken the aggressive capability of EC9706 cells.