Fig. 4
From: Effects of nicotinamide on follicular development and the quality of oocytes
NAM treatment impacted ROS levels and spindle abnormality in oocytes damaged by oxidative stress during IVM. Fluorescence staining for ROS (a) and relative fluorescence intensity (c) of MII oocytes in each group (Scale bar = 200 μm). b Typical images of spindle morphology and chromosome arrangements in different groups. d Spindle deformity rate in each group (Scale bar = 5 μm). The asterisk indicates a statistical significance (P < 0.05)