Table 1.
Group | Number of COCs | MI n (mean ± SD) | Cumulus expansionn (mean ± SD) | MIIn (mean ± SD) |
---|---|---|---|---|
Control | 198 | 70 (35.35 ± 2.62)a,b | 165 (83.33 ± 6.39)d | 128 (64.65 ± 4.87)f, g |
DMSO | 205 | 95 (43.34 ± 3.20) | 137 (66.83 ± 4.34) | 110 (53.66 ± 2.82) |
Melatonin 10-6 M | 222 | 32 (14.41 ± 2.14)a, c | 194 (87.39 ± 5.56)e | 190 (85.59 ± 5.96)f, h |
Melatonin 10-9 M | 193 | 121 (62.69 ± 3.12)b,c | 81 (41.97 ± 2.07)d, e | 72 (37.31 ± 2.00)g, h |
Within the same column, values with the same letters were significantly different (P<0.05).
DMSO; Dimethyl sulfoxide, COCs; Cumulus-oocyte complex, MI; Metaphase I, and MII; Metaphase II.