. 2016 Mar 18;6:23229. doi: 10.1038/srep23229

Table 2. MtDNA copy number in MII oocytes and 2-cell and blastocyst stage embryos.

Oocyte selection and fertilisation	mtDNA copy number ± SEM			Ratio
Oocyte selection and fertilisation	MII	2 cells	Blastocyst	2 cells/MII	Blastocyst/MII
BCB⁺ IVF	147063 ± 25325^a	91630 ± 19950^a,b	244245 ± 28765	62.3%	166.1%
BCB⁺ ICSI	147063 ± 25325^a	40926 ± 10057^a	263067 ± 45966	27.8%	178.9%
BCB⁻ ICSI	44749 ± 10574^b	22419 ± 7588^a	265000 ± 33329	50.1%	592.2%
BCB⁺ mICSI	147063 ± 25325^a	nd	273712 ± 52787	nd	186.1%
BCB⁻ mICSI	44749 ± 10574^b	198539 ± 69880^a	214841 ± 49107	443.7%	480.1%

ANOVA between BCB⁺ and BCB⁻ for IVF, ICSI and mICSI inseminations with different superscripts representing significant differences, p < 0.05.