Figure 2

MtDNA copy numbers and ATP levels after ovulation induction following melatonin treatment for 12 mo.
(a) MtDNA copy number per GV oocyte. (b): MtDNA copy number per MII oocyte. (c): ATP content per GV oocyte. (d) ATP content per MII oocyte. Data are means ± SD, n shows number of oocytes. *P < 0.05; **P < 0.01 versus the Young group. #p < 0.05 versus the Vehicle group.