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논문 기본 정보

자료유형
학술저널
저자정보
Kim Ki-Yeol (Oral Cancer Research Institute, Yonsei University College of Dentistry) Chung Hyun-Cheol (Department of Internal Medicine, Yonsei University College of Medicine, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Cancer Metastasis Research C) Jeung Hei-Cheul (Cancer Metastasis Research Center, Yonsei University College of Medicine) Shin Ji-Hye (Cancer Metastasis Research Center, Yonsei University College of Medicine) Kim Tae-Soo (Cancer Metastasis Research Center, Yonsei University College of Medicine, Yonsei Cancer Center, Yonsei University College of Medicine) Rha Sun-Young (Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Cancer Metastasis Research Center, Yonsei University College of Medicine)
저널정보
한국유전체학회 Genomics & informatics Genomics & informatics 제4권 제3호
발행연도
2006.1
수록면
110 - 117 (8page)

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In microarray technology, many diverse experimental features can cause biases including RNA sources, microarray production or different platforms, diverse sample processing and various experiment protocols. These systematic effects cause a substantial obstacle in the analysis of microarray data. When such data sets derived from different experimental processes were used, the analysis result was almost inconsistent and it is not reliable. Therefore, one of the most pressing challenges in the microarray field is how to combine data that comes from two different groups. As the novel trial to integrate two data sets with batch effect, we simply applied standardization to microarray data before the significant gene selection. In the gene selection step, we used new defined measure that considers the distance between a gene and an ideal gene as well as the between-slide and within-slide variations. Also we discussed the association of biological functions and different expression patterns in selected discriminative gene set. As a result, we could confirm that batch effect was minimized by standardization and the selected genes from the standardized data included various expression pattems and the significant biological functions.

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