Fig. 3
From: Decreased HAT1 expression in granulosa cells disturbs oocyte meiosis during mouse ovarian aging

HAT1 inhibition induces meiotic defects and decreases oocyte quality. (A) Morphology of spindles and chromosomes in oocytes from the CTL (n = 30) and AA (n = 46) groups. Scale bar: 25 μm. (B) Statistical analysis of meiotic defects rate. The data are shown with three independent experiments. (C) Morphology of spread chromosomes in oocytes from the CTL (n = 27) and AA (n = 31) groups. Chromosomes were stained with DAPI (blue). (D) Statistical analysis of aneuploidy. The data are shown with three independent experiments. (E) Representative images of 2 cell embryo and blastocyst embryo in the CTL (n = 83 MII oocytes) and AA (n = 88 MII oocytes) groups. Scale bar: 100 μm. (F)-(G) Percentage of 2 cell embryos and blastocysts. The data are shown with at least three independent experiments. Data are presented as mean ± SEM, **P < 0.01, ***P < 0.001, ****P < 0.0001, Student’s t test