Statistically designing microarrays and microarray experiments to enhance sensitivity and specificity.
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Authors
Hsu, Jason CChang, Jane
Wang, Tao
Steingrimsson, Eirikur
Magnusson, Magnus Karl
Bergsteinsdottir, Kristin
Issue Date
2007-01-01
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Brief. Bioinformatics. 2007, 8(1):22-31Abstract
Gene expression signatures from microarray experiments promise to provide important prognostic tools for predicting disease outcome or response to treatment. A number of microarray studies in various cancers have reported such gene signatures. However, the overlap of gene signatures in the same disease has been limited so far, and some reported signatures have not been reproduced in other populations. Clearly, the methods used for verifying novel gene signatures need improvement. In this article, we describe an experiment in which microarrays and sample hybridization are designed according to the statistical principles of randomization, replication and blocking. Our results show that such designs provide unbiased estimation of differential expression levels as well as powerful tests for them.Description
To access publisher full text version of this article. Please click on the hyperlink in Additional Links fieldAdditional Links
http://dx.doi.org/10.1093/bib/bbl023ae974a485f413a2113503eed53cd6c53
10.1093/bib/bbl023
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