Table 1. Levels of cytokines (pg/mg) and ROS (/%) in SAMR1, SAMP8 and following SS31 treatment (mean ± SD).

Groups	TNF-α*	IL-1β**	IL-2	IL-6*	IL-10	ROS**
SAMR1	24.75±5.44	38.75±9.22	179.00±56.15	8.25±3.30	32.75±12.04	100.00±39.23
SAMP8	40.50±12.40&	57.50±3.42&	266.75±14.01	13.75±2.50&	37.25±5.68	294.83±92.91&
SS31	28.50±8.39	40.75±5.06#	233.74±74.91	10.10±3.92	37.50±12.92	208.78±56.64#

Overall analysis: ^* P < 0.05; ^** P < 0.01

Posthoc analysis: ^& P < 0.05: SAMP8 vs. SAMR1 mice; ^#P < 0.05: SS31 vs. SAMP8 mice.