Fig. 5From: Immune cell subsets and their gene expression profiles from human PBMC isolated by Vacutainer Cell Preparation Tube (CPT™) and standard density gradientYield and viability of immune cell subsets prepared from PBMC isolated by either Ficoll or CPT protocol. a The mean number of CD19+, CD8+, CD14+, and CD4+ cells positively selected from Ficoll- and CPT-isolated PBMC collected from 6 healthy donors. The horizontal line denotes the means and each symbol represents an individual cell type isolated from Ficoll-PBMC (filled symbols) or CPT-PBMC (empty symbols) from each of 6 donors. b The mean viability of the same cell subsets. No significant differences (P < 0.05) in yields and viability of the immune cell subsets obtained from PBMC isolated by Ficoll and CPT protocols were found. Error bars indicate standard error of the meanBack to article page