مقایسهٔ روشها
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| مطالعه انجمن اپیژنوم وسیع تفاضلی× | مطالعه انجمنی اپیژِنوم-گسترده (EWAS)× | |
|---|---|---|
| حوزه | زیستاطلاعاتی | زیستاطلاعاتی |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 2009–2011 | 2008–2011 (term and framework established c. 2011) |
| پدیدآور≠ | Rakyan, Down, Balding & Beck (2011); Irizarry group for differential methylation methods (~2009–2014) | Rakyan, Down, Balding & Beck (conceptual framework); Illumina arrays enabled large-scale application |
| نوع≠ | Comparative epigenome-wide analysis | Population-scale epigenomic association study |
| منبع بنیادین | Rakyan, V. K., Down, T. A., Balding, D. J., & Beck, S. (2011). Epigenome-wide association studies for common human diseases. Nature Reviews Genetics, 12(8), 529–541. link ↗ | Rakyan, V. K., Down, T. A., Balding, D. J., & Beck, S. (2011). Epigenome-wide association studies for common human diseases. Nature Reviews Genetics, 12(8), 529–541. DOI ↗ |
| نامهای دیگر | Differential EWAS, comparative EWAS, epigenome-wide differential methylation analysis, EWAS differential design | EWAS, methylome-wide association study, epigenetic association study, DNA methylation association study |
| مرتبط≠ | 6 | 5 |
| خلاصه≠ | A Differential Epigenome-Wide Association Study (Differential EWAS) scans hundreds of thousands of CpG methylation sites across the genome to identify those whose methylation levels differ significantly between two or more comparison groups — such as cases vs. controls, exposed vs. unexposed, or distinct developmental stages. It is the standard epigenomic analogue of a differential expression analysis but operates at the level of DNA methylation marks rather than RNA counts. | An epigenome-wide association study (EWAS) is a hypothesis-free, genome-scale method that systematically tests whether epigenetic marks — predominantly CpG-site DNA methylation — differ between individuals with and without a trait, disease, or exposure. By scanning hundreds of thousands of genomic positions simultaneously, EWAS identifies loci where the epigenome is reproducibly associated with a phenotype, offering a layer of biological regulation that classical GWAS does not capture. |
| ScholarGateمجموعهداده ↗ |
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