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Relative mRNA expression levels of iNOS and caspase-3 at 72 h. The levels of the iNOS and caspase-3 mRNA were lower in the low-, middle- and high-dose groups compared with the saline group. *P<0.05, **P<0.01 vs. saline group; #P<0.05, ##P<0.01 vs. low-dose group. iNOS, inducible nitric oxide synthase; S, saline group; L, low-dose group; M, middle-dose group; H, high-dose group.
