Fig. 8From: Melatonin improves the first cleavage of parthenogenetic embryos from vitrified–warmed mouse oocytes potentially by promoting cell cycle progressionMorphology of spindle and chromosome after vitrification of MII oocytes. a, FITC represents spindle and DAPI represents DNA; b depicts the grade of spindle morphology between groups. The scale bar = 50 μm. The data are expressed as mean value ± standard error of four independent trails. Values with different superscripts (a, b) are significantly different (P < 0.05). “n” represents the cell number used in this experimentBack to article page