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Ouabain distorts actin stress fibers without affecting HLF viability. A: serum-starved HLFs were treated with or without 100 nM ouabain for times indicated. Shown are the phase-contrast microscopy images of the cells. B: effect of 100 nM ouabain or 1 mM H2O2 on HLF viability as assessed by lactate dehydrogenase (LDH) release. C: phalloidin staining of HLFs treated with or without 100 nM ouabain for 48 h. Percentile intensity of phalloidin is indicated.
