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Fig. 6 | BMC Complementary and Alternative Medicine

Fig. 6

From: Oxidative stress mediated by gyrophoric acid from the lichen Umbilicaria hirsuta affected apoptosis and stress/survival pathways in HeLa cells

Fig. 6

Effect of GA alone or after NAC pre-treatment on phosphorylation status of signal proteins p38 MAPK (a), Erk 1/2 (b) and Akt (c) in Hela cells. Data were obtained from three independent flow cytometry experiments after 1–72 h GA treatment. Significance: * P < 0.05, ** P < 0.01, *** P < 0.001 versus untreated cells (control); + P < 0.05, ++ P < 0.01, +++ P < 0.001 versus GA

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