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Table 1 Polar body extrusion (mean ± SD) in GV oocytes injected with miR-130b precursor, miR-130b inhibitor or scramble miRNA and uninjected groups

From: MicroRNA-130b is involved in bovine granulosa and cumulus cells function, oocyte maturation and blastocyst formation

Treatment groups

No. of oocytes

First polar body extrusion (%)

miR-130b precursor

356

86.6 ± 3.7a

miR-130b inhibitor

489

72.8 ± 5.9b

Scrambled

488

83.9 ± 3.5a, c

Uninjected

396

80.1 ± 4.0c

  1. Different letters of superscripts in the same column indicate significant difference (P ≤ 0.05) between treatment groups. GV Germinal vesicle, SD standard deviation