PMID- 33980325 OWN - NLM STAT- MEDLINE DCOM- 20211004 LR - 20220823 IS - 2769-6677 (Electronic) IS - 1559-6109 (Print) IS - 1559-6109 (Linking) VI - 60 IP - 4 DP - 2021 Jul 1 TI - Assessment of Mitochondrial Function and Developmental Potential of Mouse Oocytes after Mitoquinone Supplementation during Vitrification. PG - 388-395 LID - 10.30802/AALAS-JAALAS-20-000123 [doi] AB - Vitrification negatively affects the mitochondrial membrane potential (DeltaPsim) in oocytes while also leading to increased reactive oxygen species (ROS), ATP depletion and induction of apoptosis in oocytes. Mitoquinone (MitoQ) is an antioxidant that protects mitochondrial membrane integrity from ROS. This study examined the effect of adding MitoQ to vitrification medium on mitochondrial function and embryo development in vitrified oocytes. Metaphase II (MII) stage oocytes were collected from NMRI mouse ovaries and preincubated for 20 min in a medium containing 0.02 muM of MitoQ. Next, oocytes were vitrified in medium supplemented with 0.02muM of MitoQ (treatment group). The control group was processed in the same way but without exposure to MitoQ. After warming, oocyte survival rate, DeltaPsim, cytoplasmic ROS and glutathione (GSH) levels and gene expression levels (Bcl2, BAX, and caspase3) were measured. In addition, the vitrified oocytes were fertilized in-vitro to assess developmental competence. The results showed that MitoQ improved survival and DeltaPsim in treated vitrified oocytes. Treated oocytes showed lower ROS levels and higher GSH levels than did the control group. Furthermore, mRNA expression of the Bax/ Bcl2 ratio and caspase3 were significantly lower in treated oocytes. These findings indicate that medium supplementation with 0.02 muM of MitoQ during vitrification can improve oocyte survival and developmental competency in mouse oocytes. FAU - Shirzeyli, Maryam H AU - Shirzeyli MH AD - Department of Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. FAU - Eini, Fatemeh AU - Eini F AD - Fertility and Infertility Research Center, Hormozgan University of Medical Science, Bandar Abbas, Iran. FAU - Shirzeyli, Farshad H AU - Shirzeyli FH AD - Department of Animal Science, Faculty of Agriculture and Natural Resources, Science and Research branch, Islamic Azad University, Tehran, Iran. FAU - Majd, Saeid A AU - Majd SA AD - Department of animal and marine biotechnology, National institute of genetic Engineering and Biotechnology, Tehran, Iran. FAU - Ghahremani, Mehrdad AU - Ghahremani M AD - Department of Obstetrics & Gynecology, Monash University, Clayton, VIC, Australia. FAU - Joupari, Morteza D AU - Joupari MD AD - Department of animal and marine biotechnology, National institute of genetic Engineering and Biotechnology, Tehran, Iran. FAU - Novin, Marefat G AU - Novin MG AD - Cellular and Molecular Biology Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; mghaffarin@yahoo. com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210512 PL - United States TA - J Am Assoc Lab Anim Sci JT - Journal of the American Association for Laboratory Animal Science : JAALAS JID - 101269489 RN - 0 (Organophosphorus Compounds) RN - 1339-63-5 (Ubiquinone) RN - 47BYS17IY0 (mitoquinone) SB - IM MH - Animals MH - Cryopreservation MH - Dietary Supplements MH - Mice MH - Mitochondria MH - *Oocytes/metabolism MH - Organophosphorus Compounds MH - Ubiquinone/analogs & derivatives MH - *Vitrification PMC - PMC9390609 EDAT- 2021/05/14 06:00 MHDA- 2021/10/05 06:00 PMCR- 2022/01/01 CRDT- 2021/05/13 05:38 PHST- 2021/05/14 06:00 [pubmed] PHST- 2021/10/05 06:00 [medline] PHST- 2021/05/13 05:38 [entrez] PHST- 2022/01/01 00:00 [pmc-release] AID - 2021000388 [pii] AID - 10.30802/AALAS-JAALAS-20-000123 [doi] PST - ppublish SO - J Am Assoc Lab Anim Sci. 2021 Jul 1;60(4):388-395. doi: 10.30802/AALAS-JAALAS-20-000123. Epub 2021 May 12.