We used cell deconvolution to estimate cell proportion of brain cell types in ROSMAP datasets. We used R package MuSiC (Wang et al., 2019b), which utilizes cell-type specific gene expression from single-cell RNA sequencing data to characterize cell type compositions from bulk tissue RNA-seq data. In our analysis, we used single-cell RNA sequencing data from ROSMAP (Mathys et al., 2019) as reference of cell deconvolution.
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