Table 1. Transient inhibition of proteasome activity after fertilization affects full-term development.
MG132 | No. of embryos used | Morphological stage of embryos at 24 hpi | No. of embryos transferred | No. (%) of |
||
Implantations * | Fetuses ** | Embryonically lethal *** | ||||
Treated without MG132 (Control) | 154 | 2-cell | 154 | 114 (74) a | 108 (70) a | 6 (5) a |
Treated with MG132 for 8 h (from 1 to 9 hpi) | 309 | 1-cell | 221 | 119 (54) b | 97 (44) b | 22 (18) a |
2-cell | 88 | 67 (76) a, b | 46 (52) a, b | 21 (31) a |
*The percentage of transferred embryos that resulted in implantations. ** The percentage of transferred embryos that resulted in a live birth. *** The percentage of implanted embryos that resulted in embryonically lethal. Superscripts indicate significant differences from the control (P < 0.05).