Integrative prescreening in analysis of multiple cancer genomic studies.
Integrative prescreening in analysis of multiple cancer genomic studies.
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DOI:
10.1186/1471-2105-13-168
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发表时间:
2012-07-16
影响因子:
3
通讯作者:
Ma S
中科院分区:
文献类型:
--
作者:
Song R;Huang J;Ma S
In high throughput cancer genomic studies, results from the analysis of single datasets often suffer from a lack of reproducibility because of small sample sizes. Integrative analysis can effectively pool and analyze multiple datasets and provides a cost effective way to improve reproducibility. In integrative analysis, simultaneously analyzing all genes profiled may incur high computational cost. A computationally affordable remedy is prescreening, which fits marginal models, can be conducted in a parallel manner, and has low computational cost. An integrative prescreening approach is developed for the analysis of multiple cancer genomic datasets. Simulation shows that the proposed integrative prescreening has better performance than alternatives, particularly including prescreening with individual datasets, an intensity approach and meta-analysis. We also analyze multiple microarray gene profiling studies on liver and pancreatic cancers using the proposed approach. The proposed integrative prescreening provides an effective way to reduce the dimensionality in cancer genomic studies. It can be coupled with existing analysis methods to identify cancer markers.
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影响因子:
3
作者:
Langfelder P;Horvath S
通讯作者:
Horvath S
影响因子:
3
作者:
Ma, Shuangge
通讯作者:
Ma, Shuangge
影响因子:
3
作者:
Choi, Hyungwon;Shen, Ronglai;Chinnaiyan, Arul M;Ghosh, Debashis
通讯作者:
Ghosh, Debashis
DOI:
10.1007/s11425-009-0089-4
发表时间:
2009-06-01
期刊:
SCIENCE IN CHINA SERIES A-MATHEMATICS
影响因子:
--
作者:
Chen Zehua;Chen JiaHua
通讯作者:
Chen JiaHua
影响因子:
3
作者:
Ma, Shuangge;Huang, Jian
通讯作者:
Huang, Jian