Removing unwanted variation in a differential methylation analysis of Illumina HumanMethylation450 array data.
Nucleic Acids Res
; 43(16): e106, 2015 Sep 18.
Article
en En
| MEDLINE
| ID: mdl-25990733
ABSTRACT
Due to their relatively low-cost per sample and broad, gene-centric coverage of CpGs across the human genome, Illumina's 450k arrays are widely used in large scale differential methylation studies. However, by their very nature, large studies are particularly susceptible to the effects of unwanted variation. The effects of unwanted variation have been extensively documented in gene expression array studies and numerous methods have been developed to mitigate these effects. However, there has been much less research focused on the appropriate methodology to use for accounting for unwanted variation in methylation array studies. Here we present a novel 2-stage approach using RUV-inverse in a differential methylation analysis of 450k data and show that it outperforms existing methods.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Metilación de ADN
/
Análisis de Secuencia por Matrices de Oligonucleótidos
Tipo de estudio:
Evaluation_studies
Límite:
Adolescent
/
Aged80
/
Female
/
Humans
/
Infant
/
Male
/
Newborn
Idioma:
En
Revista:
Nucleic Acids Res
Año:
2015
Tipo del documento:
Article
País de afiliación:
Australia