Fig. 2. Effects of LJE and leonurine on cell viability of L6 myotubes.

L6 myotubes were treated with LJE (from 50 to 400 μg/ml) and leonurine (from 10 to 150 μM). Relative cell viability was tested using MTT regents (A, B). Group differences were assessed by Duncan’s multiple range test, *p < 0.05, and **p < 0.01 (control group vs. LJE- and leonurine-treated groups).