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Lu, Yan-Yan,Huang, Xin-En,Cao, Jie,Xu, Xia,Wu, Xue-Yan,Liu, Jin,Xiang, Jin,Xu, Lin Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.8
Purpose: To investigate the efficacy and safety of Javanica oil emulsion injection (Yadanzi$^{(R)}$) combined with pemetrexed and platinum (PP) for treating patients with advanced lung cancer. Patients and Methods: From June 2011 to June 2013, we recruited 58 patients with advanced lung cancer, and divided them into two groups. Twenty eight patients received Yadanzi$^{(R)}$ (from ZheJiang Jiuxu Pharmaceutical Co., Ltd.) together with PP chemotherapy (combined group), while the others were given only PP chemotherapy (control group). After two cycles of treatment, efficacy and safety of treatment were evaluated. Results: The overall respnse rate [(CR+PR+SD)/(CR+PR+SD+PD)] of the combined group was higher than that of control group (89.7% vs. 86.2%, p>0.05). Regarding rate of life improvement, it was 82.8% in combined group, and 51.7% in the control group (p<0.05). In terms of side effects, leukopenia in combined group was less frequent than that in control group (p<0.05). More patients in the control group were found to suffer liver toxicity. Conclusions: Javanica oil emulsion injection combined with chemotherapy could be considered as a safe and effective regimen in treating patients with advanced lung adenocarcinoma. It can improve the quality of life and reduce the possibility of leukopenia. Further clinical trials with a large sample size should be conducted to confirm whether addition of Yadanzi$^{(R)}$ to chemotherapy could increase the response rate, reduce toxicity, enhance tolerability and improve quality of life for patients with advanced lung cancer.
Xia, Pengguo,Guo, Hongbo,Zhao, Hongguang,Jiao, Jie,Deyholos, Michael K.,Yan, Xijun,Liu, Yan,Liang, Zongsuo The Korean Society of Ginseng 2016 Journal of Ginseng Research Vol.40 No.1
Background: Blind and excessive application of fertilizers was found during the cultivation of Panax notoginseng in fields, as well as increase in root rot disease incidence. Methods: Both "3414" application and orthogonal test designs were performed at Shilin county, Yunnan province, China, for NPK (nitrogen, phosphorus, and potassium) and mineral fertilizers, respectively. The data were used to construct the one-, two-, and three-factor quadratic regression models. The effect of fertilizer deficiency on root yield loss was also analyzed to confirm the result predicted by these models. A pot culture experiment was performed to observe the incidence rate of root rot disease and to obtain the best range in which the highest yield of root and saponins could be realized. Results: The best application strategy for NPK fertilizer was $0kg/667m^2$, $17.01kg/667m^2$, and $56.87kg/667m^2$, respectively, which can produce the highest root yield of 1,861.90 g (dried root of 100 plants). For mineral fertilizers, calcium and magnesium fertilizers had a significant and positive effect on root yield and the content of four active saponins, respectively. The severity of root rot disease increased with the increase in soil moisture. The best range of soil moisture varied from 0.56 FC (field capacity of water) to 0.59 FC, when the highest yield of root and saponins could be realized as well as the lower incidence rate of root disease. Conclusion: These results indicate that the amount of nitrogen fertilizer used in these fields is excessive and that of potassium fertilizer is deficient. Higher soil moisture is an important factor that increases the severity of the root rot disease.
Yan Xia,Shou Zhang,Chang-bao Fu,엄정인,연규황 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.2
We propose a scheme to teleport an arbitrary and unknown three-particle state by using a nonmaximally four-particle entangled state and a non-maximally three-particle GHZ state from a sender to either one of two receivers. We show that teleportation can be successfully realized with a certain probability by performing three Bell-states measurements on the sender’s side and by introducing a Hadamard operation on the receiver’s side conditioned on an appropriate unitary transformation on the other possible receiver’s side We propose a scheme to teleport an arbitrary and unknown three-particle state by using a nonmaximally four-particle entangled state and a non-maximally three-particle GHZ state from a sender to either one of two receivers. We show that teleportation can be successfully realized with a certain probability by performing three Bell-states measurements on the sender's side and by introducing a Hadamard operation on the receiver's side conditioned on an appropriate unitary transformation on the other possible receiver's side.
Synthesis and Biological Evaluation of Decursin, Prantschimgin and Their Derivatives
Xia, Yan,Min, Kyung-Hoon,Lee, Kyeong Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.1
The synthesis of coumarin-based natural products and their derivatives is described. In vitro MDR reversal activities of the synthesized compounds were evaluated in P-glycoprotein over-expressing human sarcoma cell line MES-SA/DX5. Some of the coumarin derivatives were found to show potent MDR reversal activity. In particular, pyridyl derivative (15e) exhibited more potency than verapamil.
Review : Targeting Multidrug Resistance with Small Molecules for Cancer Therapy
( Yan Xia ),( Kyeong Lee ) 한국응용약물학회 2010 Biomolecules & Therapeutics(구 응용약물학회지) Vol.18 No.4
Conventional cancer chemotherapy is seriously limited by tumor cells exhibiting multidrug resistance (MDR), which is caused by changes in the levels or activity of membrane transporters that mediate energy-dependent drug efflux and of proteins that affect drug metabolism and/or drug action. Cancer scientists and oncologists have worked together for some time to understand anticancer drug resistance and develop pharmacological strategies to overcome such resistance. Much focus has been on the reversal of the MDR phenotype by inhibition of ATP-binding cassette (ABC) drug transporters. ABC transporters are a family of transporter proteins that mediate drug resistance and low drug bioavailability by pumping various drugs out of cells at the expense of ATP hydrolysis. Many inhibitors of MDR transporters have been identified, and though some are currently undergoing clinical trials, none are in clinical use. Herein, we briefly review the status of MDR in human cancer, explore the pathways of MDR in chemotherapy, and outline recent advances in the design and development of MDR modulators.
Xia, Yan-Hua,Chen, Liu,Pan, Zi-Shu,Zhang, Chu-Yu Korean Society for Biochemistry and Molecular Biol 2007 Journal of biochemistry and molecular biology Vol.40 No.5
$E^{rns}$ is an envelope glycoprotein of classical swine fever virus (CSFV) and has an unusual feature of RNase activity. In the present study, we demonstrate that $E^{rns}$ counteracts Newcastle disease virus (NDV)-mediated induction of IFN-$\beta$. For this purpose, $E^{rns}$ fused to the enhanced green fluorescent protein (EGFP) was transiently expressed in porcine kidney 15 (PK15) cells. In luciferase activity assay, $E^{rns}$-EGFP was found to prevent IFN-$\beta$ promoter-driven luciferase expression and block the induction of IFN-$\beta$ promoter mediated by NDV in a dose-dependent manner. Through IFN-specific semi-quantitative RT-PCR detection, obvious decrease of IFN-$\beta$ mRNA in NDV-infected PK15 cells was observed in the presence of $E^{rns}$-EGFP. In contrast, EGFP alone showed none of this block capacity. In addition, $E^{rns}$-EGFP mutations with RNase inactivation were also found to block NDV-mediated induction of IFN-$\beta$. These evidences establish a novel function for CSFV $E^{rns}$ glycoprotein in counteraction of the IFN-$\beta$ induction pathway.
Innovative Teaching Via Sustainable Vocational Education with an Improved Ant Colony Algorithm
Yan Xia 대한전자공학회 2023 IEIE Transactions on Smart Processing & Computing Vol.12 No.5
Although students’ test scores provide an important reference for teaching and learning, research scholars still need to objectively analyze the scores. Under the current situation where English performance of vocational education students does not achieve satisfactory results, this research uses a clustering algorithm to improve on the ant colony optimization algorithm. This ant colony clustering analysis algorithm is improved by incorporating two optimization strategies, and the test scores of vocational education students are introduced as the original data for cluster analysis. The optimal number of ant colonies is nine, when the three error values of the two ant colony algorithms are minimized. The convergence values of the three ant colony algorithms are smallest when there are 200 training cycles or when the training batch size is 1000, resulting in upgraded ant colony clustering algorithm convergence values of 0.498 and 1.523, respectively. The performance of the student evaluation model combined with the ant colony clustering optimization algorithm improved, followed by CF, FOA, and BP. KNN had the worst performance. Data mining on student performance can be done via research that can provide specialized advice on students' issues.