Fig. 4.
a–g Intensity of ROS production in mitochondria. Images from a confocal microscope (FV1000 (Olympus, Germany) showing hepatocytes incubated with the probe mitochondrial MitoSOX, after 48 h cultivation of cells in a medium containing an extract of Japanese quince. a Control. b Positive control. c 1 μg/mL. d 10 μg/mL. e 50 μg/mL. f 100 μg/mL. g Positive control for enhanced ROS formation—hepatocytes cultured in a medium supplemented with 10 μM of ethyl alcohol. Pictures were taken using a HeNe-G helium neon laser (575/625 nm wavelength—red fluorescence) (color figure online)