Figure 1.

Morroniside reverses H₂O₂-induced inhibition of HELF growth and improves cell morphology by preventing cell deformation and maintaining the same appearance as the control group. HELF cells were treated without or with H₂O₂ or with a combination of H₂O₂ and morroniside at various concentrations. (A) HELF cell growth was measured by MTT. (B) Morphology of HELF cells with acridine orange/ethidium bromide staining. M, morroniside; M1-5, 12.5, 25, 50, 100 and 200 μg/ml morroniside, respectively; HELF, human embryonic lung fibroblast.