Table 3.
Embryo quality assessment of bovine embryos after IVC with or without miRNA-148b mimic or control mimics
| No. Blastocysts Processed | No. Total nuclei | No. ICM nuclei | No. TE nuclei | Ratio ICM/TE | |
|---|---|---|---|---|---|
| Control | 30 | 108.8 ± 1.0b | 36.8 ± 1.0b | 66.2 ± 0.7b | 0.5 ± 0.02 |
| CMimic | 30 | 105.3 ± 1.2b | 36.8 ± 0.8b | 68.5 ± 1.1b | 0.5 ± 0.02 |
| miR148b | 30 | 136.4 ± 1.6a | 43.9 ± 1.3a | 92.5 ± 0.9a | 0.5 ± 0.01 |
| miR148b-OV | 30 | 135.3 ± 1.5a | 42.7 ± 0.8a | 92.6 ± 1.2a | 0.5 ± 0.01 |
| miR148b-UT | 30 | 106.5 ± 1.1b | 37.5 ± 1.2b | 69.0 ± 0.9b | 0.5 ± 0.02 |
Embryos cultured from presumptive zygotes to blastocyst in SOF + 0.3% BSA (Control), or SOF + 0.3% BSA supplemented with 1 µM control mimics (CMimic), or SOF + 0.3% BSA supplemented with 1 µM of miR-148b (miR148b) or embryos cultured from presumptive zygotes to 16- cell stage in SOF + 0.3% BSA supplemented with 1 µM of miR-148b (miR148b-OV), or embryos cultured from 16-cell stage to blastocyst in SOF + 0.3% BSA supplemented with 1 µM of miR-148b (miR148b-UT). ICM: inner cell mass; TE: trophectoderm. Data are the mean ± s.e.m. Within columns, different superscript letters indicate significant difference (P ≤ 0.001) between treatments