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- 저자 : Yi Rong-xi (검색결과 4 건)
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He, Jian-Rong,Xi, Jing,Ren, Ze-Fang,Qin, Han,Zhang, Ying,Zeng, Yi-Xin,Mo, Hao-Yuan,Jia, Wei-Hua Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.12
Purpose: Complement receptor 1 (CR1) is induced by Epstein-Barr virus (EBV) and may be a potential biomarker of nasopharyngeal carcinoma (NPC). We conducted the present study to evaluate the association of CR1 expression with clinicopathological features and prognosis of NPC. Methods: We enrolled 145 NPC patients and 110 controls. Expression levels of CR1 in peripheral blood mononuclear cells (PBMCs) were detected using quantitative real-time PCR and associations with clinicopathological features and prognosis were examined. Results: CR1 levels in the NPC group [3.54 (3.34, 3.79)] were slightly higher than those in the controls [3.33 (3.20, 3.47)] (P<0.001). Increased CR1 expression was associated with histology classification (type III vs. type II, P=0.002), advanced clinical stage (P=0.003), high T stage (P=0.017), and poor overall survival (HR, 4.89; 95% CI, 1.23-19.42; P=0.024). However, there were no statistically significant differences in CR1 expression among N or M stages. Conclusion: These findings indicate that CR1 expression in PBMCs may be a new biomarker for prognosis of NPC and a potential therapeutic target.
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Expression of Tumor Necrosis Factor Receptor-associated Factor 6 in Lung Cancer Tissues
Zhang, Xiu-Ling,Dang, Yi-Wu,Li, Ping,Rong, Min-Hua,Hou, Xin-Xi,Luo, Dian-Zhong,Chen, Gang Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.24
Background: Tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) has been reported to be associated with the development of various cancers. However, the role of TRAF6 in lung cancer remains unclear. Objective: To explore the expression and clinicopathological significance of TRAF6 protein in lung cancer tissues. Materials and Methods: Three hundred and sixty-five lung cancer samples and thirty normal lung tissues were constructed into 3 microarrays. The expression of TRAF6 protein was determined using immunohistochemistry (IHC). Furthermore, correlations between the expression of TRAF6 and clinicopathological parameters were investigated. Results: The expression of TRAF6 in total lung cancer tissues (365 cases), as well as in small cell lung cancer (SCLC, 26 cases) and non-small cell lung cancer (NSCLC, 339 cases) was significantly higher compared with that in normal lung tissues. The ROC curve showed that the area under curve of TRAF6 was 0.663 (95%CI 0.570~0.756) for lung cancer. The diagnostic sensitivity and specificity of TRAF6 were 52.6% and 80%, respectively. In addition, the expression of TRAF6 was correlated with clinical TNM stage, tumor size and lymph node metastasis in all lung cancers. Consistent correlations were also observed for NSCLCs. Conclusions: TRAF6 might be an oncogene and the expression of TRAF6 protein is related to the progression of lung cancer. Thus, TRAF6 might become a target for diagnosis and gene therapy for lung cancer patients.
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Process of Equiaxed Grains of RE-Al Alloy under Slope Vibration
Xie Shi-kun,Yi Rong-xi,Pan Xiao-liang,Zheng Xiao-qiu,Guo Xiu-yan 한국소성가공학회 2010 기타자료 Vol.2010 No.6
A new technique using slope vibration casting process during heating and isothermal holding period to prepare Al-7Si-2RE alloy has been studied. The small, near-spherical and non-dendritic microstructure with the semi-solid processing requirements has been obtained. Experiments show that the cooling method, pouring process and the convection of melt caused by slope vibration had significant effects on the formation of near-spherical primary gains. The water-cooled copper mold casting with slope vibration at the temperature near liquidus can obtain Al-7Si-2RE alloy with small homogeneous equiaxed grains, the average grain diameter is 48.3μm, and the average grain roundness is 1.92.
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Gou, Lin,Zhan, Yi,Lee, Jinhyuk,Li, Xuan,Lü,, Zhi-Rong,Zhou, Hai-Meng,Lu, Hang,Wang, Xi-Yao,Park, Yong-Doo,Yang, Jun-Mo Humana Press 2015 Applied biochemistry and biotechnology Vol.175 No.4
<P>The inhibitory effect of L-malic acid (MA) on alpha-glucosidase (EC 3.2.1.20) was investigated by combination study between inhibition kinetics and computational simulations. The results from the serial kinetics demonstrated that MA could directly inactivate the enzyme activity in a dose-dependent manner and a typical non-competitive type, as well as in a fast inactivate process without detectable time course. The tertiary conformation study with an application of spectrofluorimetry showed that MA modulated the tertiary structural conformation of alpha-glucosidase both on the overall and on regional active site pocket, which monitored by red-shift intrinsic fluorescence peak with decreases intensities, and the significant intensity increasing of 1-anilinonaphthalene-8-sulfonate (ANS)-binding fluorescence, respectively. To have more insight, we also adapted the computational molecular dynamics (MD) simulations. The results showed that MA was located in the entrance of active pocket for the catalytic reaction and blocked the passage of substrate. It confirmed that MA inhibits as a non-competitive type, not direct docking to the glucose binding site. Our study provides important molecular mechanisms to figure out alpha-glucosidase inhibition that might associate to development of type 2 diabetes mellitus drug.</P>
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