Table 1: miRNA 144 and miRNA 451 expressions in Percoll density cell age gradient sub-fraction.

Red Blood Cell subfraction	miR-451 expression	miR-451 relative expression	miR-144 expression	miR-144 relative expression
Young Age cell (y)	82210.8271	1	18.6641092	1
Middle Age cell (m)	130922.476	1.59	32.4413621	1.74
Old Age cell (o)	149554.364	1.8	57.8118394	3.1