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3篇 您的检索式:作者名="Zaiming Yang"
    题名 作者 年代 出处 被引量
1The application of the entropy-based statistic for genomic association study of QTL显示文摘An entropy-based statistic TPE has been proposed for genomic association study for disease-susceptibility locus. The statistic TPE may be directly adopted and/or extended to quantitative-trait locus (QTL) mapping for quantitative traits. In this article, the statistic TPE was extended and applied to quantitative trait for association analysis of QTL by means of selective genotyping. The statistical properties (the type I error rate and the power) were examined under a range of parameters and population-sampling strategies (e.g.,various genetic models, various heritabilities, and various sample-selection threshold values) by simulation studies. The results indicated that the statistic TPE is robust and powerful for genomic association study of QTL. A simulation study based on the haplotype frequencies of 10 single nucleotide polymorphisms (SNPs) of angiotensin-I converting enzyme genes was conducted to evaluate the performance of the statistic TPE for genetic association study.Yang Xiang Yumei Li Zaiming Liu Zhenqiu Sun 2008Journal of Genetics and Genomics2008,35,3:1
2Error analysis of 3D shape construction from structured lighting显示文摘Yang Zaiming Wang Y H 1996Pattern Recognition1996,29,2:1
3DNMT3A inhibits E2F1-induced arterial marker expression and impairs angiogenesis in human umbilical artery endothelial cells显示文摘Arterial marker genes EphrinB2 and HEY2 are essential for cardiovascular development and post-natal neovascularization.Our previous study confirmed.that E2F1 could activate the transcription of EphrinB2 and HEY2 in human mesenchymal stem cells;however,the detailed mechanism has not been resolved yet.In this study,we focused on the interaction between E2F1 and DNMT3A,a de novo DNA methyltransferase,on regulating the expression of EphrinB2 and HEY2,and explored the potential mechanisms.Gain-and loss-of-function experiments implicated the positive effect of E2F1 on the expression of EphrinB2 and HEY2 and tube formation in human umbilical artery endothelial cells.Accumulation of DNMT3A decreased the levels of EphrinB2 and HEY2,and impaired tube formation induced by E2F1,while inhibiting DNMT3A by RNA interference aug-mented their expression and angiogenesis in E2F 1-trasfected cells.We then asked whether the low expressions of EphrinB2 and HEY2 induced by DNMT3A are related to the methylation status of their promoters.Surprisingly,the methylation status of the CpG islands in the promoter region was not significantly affected by overexpression of exogenous DNMT3A.Furthermore,the inter-action between E2F1 and DNMT3A was confirmed by co-immunoprecipitation.DNMT3A could inhibit the transcription of EphrinB2 and HEY2 promoters by affecting the binding of E2F1 to its recognition sequences as revealed by luciferase reporter assay and chromatin immunoprecipita-tion.These results identified a novel mechanism underlying the cooperation of DNMT3A with E2F1 on regulating target gene expression,and revealed their roles in the angiogenic process.Kaiyue Su Ningning Lin Shouqiang Xie Yabo Han Zaiming Yang Hongmin Zhang Hongpeng He Sa Zhou Wenjian Ma Tongcun Zhang Nan Wang 2020Acta Biochimica et Biophysica Sinica2020,52,11:1
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