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Sisi He,Rong Cao,Yan Mao,Na Li,Yanzhe Wang,Hu Ma,Kunming Tian 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.3
Objective: Accumulating evidence has shown that aberrant alternative splicing events are closely associated with the onset and development of cancer. However, whether genetic variants-associated alternative splicing is linked to risk of endometrial cancer remains largely uncertain. Methods: We identified single nucleotide polymorphisms (SNPs) locates in the splicing number trait locus (sQTL) of endometrial cancer using the CancerSplicing QTL database. In parallel with bioinformatics analysis, we conducted a case-control study comprising 2,000 cases and 2,013 controls to assess the association between identified SNP which possesses mRNA splicing function and endometrial cancer susceptibility. Furthermore, we used the Kaplan-Meier Plotter, The Human Protein Atlas, SPNR, and Spliceman2 databases for sQTL and differential gene expression analyses to identify the genetic variant which most potentially influence the risk of endometrial cancer through alternative splicing to reveal the potential mechanism by which candidate SNPs regulate the risk of endometrial cancer. Results: The results indicated that SNP rs7128029 A<G was significantly associated with an increased risk of endometrial cancer (odds ratio=1.384; 95% confidence interval=1.038–1.964). Moreover, the carcinogenic effect of SNP rs7128029 A<G was consistently revealed by propensity matching analysis, an additive model, and a dominant model. Importantly, sQTL analysis showed that SNP rs7128029 could affect the transcriptional modification of PSMD13 via regulating the exon skipping of PSMD13. When the rs7128029 allele was mutated from A to G, the expression of exon 2 of PSMD13 was markedly lower (p<0.001). Furthermore, compared with participants who had higher PSMD13 expression, those who had lower PSMD13 expression had shorter survival times. Conclusion: These findings suggest that SNP rs7128029-mediated alternative splicing events in PSMD13 are associated with endometrial cancer risk and may be a potential early screening biomarker for endometrial cancer-susceptible populations.
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Effect of Particle Size and Dispersion on Dielectric Properties in ZnO/Epoxy Resin Composites
Wenhu Yang,Ran Yi,Xu Yang,Man Xu,Sisi Hui,Xiaolong Cao 한국전기전자재료학회 2012 Transactions on Electrical and Electronic Material Vol.13 No.3
In this paper, ZnO-Epoxy nanocomposites (NEP) were prepared and epoxy composites that contain 5 wt% micro ZnO (MEP) and deliberately not well dispersed nano ZnO (NDNEP) were also prepared for purpose of comparison. The effects of the particle size and dispersion of ZnO on dielectric properties of epoxy resin were chiefly studied. Test results showed that: at a loading of 5 wt%, the three epoxy composites seem to have no significant difference on resistivity compared to epoxy resin; Dielectric constants of all the epoxy composites are also basically the same but they are bigger compared to that of the pure epoxy resin (unfilled); Dielectric dissipation factors (tanδ) of NDNEP is greater than that of NEP and MEP. NEP has the minimum dielectric loss factor, whereas dielectric loss factors of the three epoxy composites are larger than that of the pure epoxy resin. The decreasing order of electrical breakdown strength for the three epoxy composites and for the pure epoxy resin is as follows: NEP>MEP>NDNEP>EP. Finally,in order to explain the experimental results the aggregation interface phase was proposed. Furthermore, addition of well dispersed nano filler has proved to have a positive effect on the improvement of the dielectric properties of epoxy resin.
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Effect of Particle Size and Dispersion on Dielectric Properties in ZnO/Epoxy Resin Composites
Yang, Wenhu,Yi, Ran,Yang, Xu,Xu, Man,Hui, Sisi,Cao, Xiaolong The Korean Institute of Electrical and Electronic 2012 Transactions on Electrical and Electronic Material Vol.13 No.3
In this paper, ZnO-Epoxy nanocomposites (NEP) were prepared and epoxy composites that contain 5 wt% micro ZnO (MEP) and deliberately not well dispersed nano ZnO (NDNEP) were also prepared for purpose of comparison. The effects of the particle size and dispersion of ZnO on dielectric properties of epoxy resin were chiefly studied. Test results showed that: at a loading of 5 wt%, the three epoxy composites seem to have no significant difference on resistivity compared to epoxy resin; Dielectric constants of all the epoxy composites are also basically the same but they are bigger compared to that of the pure epoxy resin (unfilled); Dielectric dissipation factors ($tan{\delta}$) of NDNEP is greater than that of NEP and MEP. NEP has the minimum dielectric loss factor, whereas dielectric loss factors of the three epoxy composites are larger than that of the pure epoxy resin. The decreasing order of electrical breakdown strength for the three epoxy composites and for the pure epoxy resin is as follows: NEP>MEP>NDNEP>EP. Finally, in order to explain the experimental results the aggregation interface phase was proposed. Furthermore, addition of well dispersed nano filler has proved to have a positive effect on the improvement of the dielectric properties of epoxy resin.
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