Table 1. Expression levels of miRNAs analyzed in each group.

GROUPS	Mean Expression levels (endogenous control: miR-186)
	miR-21-5p	miR-34a-5p	miR-124-5p	miR-132-3p	miR-144-3p
AAS (Mean values)	1.58 ± 0.3	11.26 ± 1.21	1.18 ± 0.34	8.09 ± 3.3	1.39 ± 0.25
Cocaine (Mean values)	0.86 ± 0.17	12.33 ± 1.84	0.4 ± 0.25	8.74 ± 3.51	0.59 ± 0.3
Aging (Mean values)	1.9 ± 0.5	2.16 ± 0.91	0.05 ± 0.04	1.11 ± 0.57	1.07 ± 0.17