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Gao, Yue,Bae, Jung Han The Korean Research Institute of International Com 2012 貿易商務硏究 Vol.56 No.-
As market is more and more mature, the survival environment of exporting companies is getting severer, which throws exporting companies into great pressures of the process of growth and development. For most businessmen, the hardest part of starting a foreign business is to find buyers or to get customers, which is more critical for small and medium-size foreign enterprises. The fast changes of internal and external trade and market circumstances, together with the advent of e-commerce, led to the diversified of the way to find foreign buyers for exporting companies. But the performance differs in using different ways of finding foreign buyers. Therefore, this study examines the status of the methods of finding foreign buyers and performance of exporting companies in China. Based on the investigation of the ways of finding foreign buyers, this study tries to find out the most efficient ways of finding foreign buyers for them. And this study tries to propose some practical suggestions for the exporting companies based on the analysis that will help them to improve companies' performances.
Yue Gao,Seung Hee Han,Young Ho Kim,Si Hyeock Lee 한국응용곤충학회 2016 한국응용곤충학회 학술대회논문집 Vol.2016 No.10
Acetylcholinesterase (AChE) is an enzyme for hydrolyzing neurotransmitter acetylcholine. Soluble form of AChE is generated via alternative splicing and functions as a bioscavenger in Dropsophila melanogaster. In this study, effects of ethanol and acetic acid on the soluble AChE expression were investigated. Treatment of ethanol and acetic acid results in over-expression of soluble AChE in the abdomen in a dose-dependent manner. However, no apparent change in AChE expression was observed in the head. Our finding suggests that the soluble AChE is involved in chemical defense against high concentration of ethanol, which is a common by-product from fermented food,and acetic acid, the main metabolite of ethanol. Thus, high level of ethanol and acetic acid resistance in D. melanogaster appears to be evolved via the induction mechanism of soluble AChE expression.
Yue Gao,Kyungmun Kim,Deok Ho Kwon,Si Hyeock Lee 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.04
To identify genes that commonly respond to the treatment of different insecticides, 3rd instar larvae of the diamondback moth, Plutella xylostella, were treated with sublethal doses (<LC10) of chlorantraniliprole, cypermethrin, dinotefuran, indoxacarb and spinosad via leaf dipping. Then, transcriptomic profiles of treated larvae were compared with that of untreated control. A total of 117,181 transcripts in average with a mean length of 662 bp were generated by de novo assembly, of which 35,329 transcripts were annotated. Among them, 207, 153, 336, 360, and 262 transcripts were determined to be up-regulated whereas 117, 47, 92, 115, and 81 genes were down-regulated following treatments with chlorantraniliprole, cypermethrin, dinotefuran, indoxacarb and spinosad, respectively. Finally, with the criteria of >10 X fold change (FC) and p < 0.05 or >4 X FC, p < 0.05 and q < 0.2, the genes commonly over-transcribed in all treated insects were selected and their over-transcription levels were confirmed by quantitative PCR. These commonly responding genes included three cytochrome P450 genes (Cyp303a1, Cyp6a20 and CYP9E2), three cuticle protein genes (LM-8, LM-19 and TM-A3A), lavesin-1, acyl-CoA D11 desaturase, glucose dehydrogenase, nose resistant to fluxetine protein 6, chorion peroxidase and protein yellow. As the five test insecticides have distinct structure and mode of action, the genes identified in this study were suggested to be involved in general chemical defense at the initial stage of intoxication. Their possible roles in tolerance and resistance development were further discussed.
Gao, Yue,Liu, Yan,Liu, Ge-Li,Ran, Long-Ke,Zeng, Fan,Wu, Jia-Yan,Song, Fang-Zhou Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.6
Background: Several recent studies have explored associations between pre-mir-218 polymorphism (rs11134527) and cancer risk. However, published data are still inconclusive. To obtain a more precise estimation of the relationship in the Chinese population, we carried out a meta-analysis for the first time. Materials and Methods: Through retrieval from the PubMed, Medline, Embase, Web of Science databases, China National Knowledge Infrastructure and the Chinese BioMedical Literature Database, a total of four studies were analyzed with 3,561 cases and 3,628 controls for SNP pre-mir-218 rs11134527. We calculated odds ratios (ORs) and 95% confidence intervals (95%CIs) to explore the strength of associations. Results: The results showed that the rs11134527 polymorphism was associated with decreased cancer risk in GG versus AA and GG versus AA+AG models tested ( GG vs AA: OR=0.82, 95%CI: 0.71-0.94; GG vs AA+AG: OR=0.84, 95%CI: 0.74-0.96), and significantly decreased cervical cancer risk was observed in GG versus AA and GG versus AA+AG models (GG vs AA: OR=0.79, 95%CI: 0.66-0.94; GG vs AA+AG: OR=0.80, 95%CI: 0.68-0.94). However, no significant association between the rs11134527polymorphism and hepatocellular carcinoma risk was observed in all comparison models tested (AG vs AA: OR=0.94, 95%CI: 0.79-1.11; GG vs AA: OR=0.88, 95%CI: 0.70-1.10; GG+AG vs AA: OR=0.92, 95%CI: 0.79-1.08; GG vs AA+AG: OR=0.91, 95%CI: 0.75-1.11). Conclusion: The findings suggest that pre-miR-218 rs11134527 polymorphism may have some relation to cancer development in Chinese. However, well-designed studies with larger sample size and more detailed data are needed to confirm these conclusions.
Yue Gao,KyungmunKim,Deok Ho Kwon,In Hong Jeong,J. MarshallClark,Si Hyeock Lee 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
When treating the 3rd instar larvae of the diamondback moth (DBM), Plutella xylostella, with sublethal doses (LC10) of chlorantraniliprole, indoxacarb and spinosad via leaf dipping, their tolerance to insecticides was significantly enhanced. By analyzing the differentially expressed genes (DEGs), we found a number of genes that respond commonly or specifically to the test insecticides. With the criteria of p value < 0.05 and Log2FC > 1/ < -1, a total of 476, 367 and 410 genes were determined to respond specifically to chlorantraniliprole, indoxacarb and spinosad, respectively. Gene Ontology (GO) analysis revealed that the cuticle reorganization is commonly associated in all treatments and the oxidative stress-related process is also shown in all insecticides except spinosad. Finally, the DEGs seemingly related with enhanced tolerance were chosen for further characterization, and reliability of the transcriptome data were confirmed by quantitative PCR. The functional categories of these DEGs included mostly detoxification related genes, cuticle proteins, energy metabolism and transcriptional regulation. While the commonly responding DEGs suggest that they are likely involved in defense against common intoxication process, the DEGs specifically responded to each insecticide suggests the presence of unique tolerance mechanisms to each insecticide depending on their different structure and mode of action. Their possible roles in the tolerance/resistance development were discussed.
Yue Gao,Kyungmun Kim,Deok Ho Kwon,In Hong Jeong,J. Marshall Clark,Si Hyeock Lee 한국응용곤충학회 2017 한국응용곤충학회 학술대회논문집 Vol.2017 No.10
To identify genes that commonly respond to the treatment of different insecticides and are responsible for the toleranceenhancement, transcriptomic profiles of larvae treated with sublethal doses of the five insecticides were compared withthat of untreated control. A total of 117,181 transcripts with a mean length of 662 bp were generated by de novo assembly,of which 35,329 transcripts were annotated. Among them, 125, 143, 182, 215 and 149 transcripts were determined tobe up-regulated whereas 67, 45, 60, 60 and 38 genes were down-regulated following treatments with these five insecticides.The most notable examples of commonly responding over-transcribed genes were two cytochrome P450 genes and ninecuticular protein genes. In contrast, several genes composing the mitochondrial energy generation system were significantlydown-regulated in all treated larvae. Considering the distinct structure and mode of action of the five insecticides tested,the differentially expressed genes identified in this study appear to be involved in general chemical defense at the initialstage of intoxication. Their possible roles in the tolerance/resistance development were discussed.